A method of producing ENG (liquid natural gas) comprises expanding a first stream of pressurized natural gas to produce a first refrigerant stream of natural gas and a first stream of NGLs (natural gas liquids). A second stream is cooled in a heat exchanger using the first refrigerant stream of natural gas to produce a second stream of NGLs and a first cooled stream of natural gas. A stream of LNG and a second refrigerant stream of natural gas is produced by expanding the first cooled stream of natural gas. Some or all of the NGLs and the cooled streams of natural gas are recycled using a liquid injector compressor that receives a liquid stream pressurized by a pump and a stream of natural gas.
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
2.
PRODUCTION OF PETROCHEMICAL FEEDSTOCKS AND PRODUCTS USING A FUEL CELL
A method of producing petrochemicals using a hydrocarbon fuel cell includes the steps of operating the fuel cell to produce electricity, thermal energy, and one or more exhaust stream, the one or more exhaust stream comprising at least a carbon-containing gas and water, reacting at least a portion of the exhaust stream with the reactant stream of natural gas to produce one or more petrochemical streams in a reactor, and heating one or more reactants using at least a portion of at least one of the electricity and the thermal energy.
C07C 29/48 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par des réactions d'oxydation avec formation de groupes hydroxyle
H01M 8/04014 - Échange de chaleur par des fluides gazeuxÉchange de chaleur par combustion des réactifs
H01M 8/0612 - Combinaison d’éléments à combustible avec des moyens de production de réactifs ou pour le traitement de résidus avec des moyens de production des réactifs gazeux à partir de matériaux contenant du carbone
3.
METHOD AND SYSTEM TO PRODUCE HYDROCARBON FEEDSTOCKS
A method that combines a fuel cell with a Gas Recovery Unit (GRU) to a methanol plant to produce methanol at near zero GHG emissions. The fuel cell generates steam, carbon dioxide and electricity. A GRU unit condenses, separates, recovers, pressurizes and reheats the fuel cell anode exhaust stream. The GRU prepares a stream of natural gas and steam to feed the fuel cell anode and a stream of carbon dioxide and air to feed the fuel cell cathode. The GRU also prepares streams of carbon dioxide and steam as reactants for the stoichiometric mixture with natural gas to produce synthesis gas in an electric catalytic reformer at a methanol plant. The electric catalytic reformer uses electricity, steam and/or carbon dioxide reactants produced by the fuel cell to produce synthesis gas for conversion to methanol with low GHG emissions.
C07C 29/151 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction exclusivement des oxydes de carbone avec de l'hydrogène ou des gaz contenant de l'hydrogène
C01B 3/38 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants avec des catalyseurs
B01J 19/24 - Réacteurs fixes sans élément interne mobile
H01M 8/0668 - Élimination du monoxyde de carbone ou du dioxyde de carbone
A method to dry a gas stream that includes methane and condensable components that have a lower boiling point than methane by: combining the gas stream with a cold liquid stream in a gas mixer to produce a mixed stream that is colder than the gas stream and to condense a first portion of the condensable components; passing the mixed stream through a first separator to remove the condensed first portion and obtain a second gas stream; lowering a pressure and temperature of the second gas stream in an expansion device to obtain a third gas stream and condense a second portion of the condensable components; passing the third gas stream through a second separator to remove the condensed second portion and obtain a dried gas stream; and recirculating at least a portion of the condensed second portion into the in-line gas mixer as the cold liquid stream.
A rnethod to dry a gas strearn that includes methane and condensable components that have a lower boiling point than methane by: combining the gas stream with a cold liquid stream in a gas mixer to poduce a mixecl strearn that is colder than the gas strearn and to condense a first portion ofthe condensable components; passing the mixed streatn through a first separator to iemove the condensed first portion and obtain a second gas stream; lowering a pressure and temperature of the second gas strearn in an expansion device to obtain a third gas stream and condense a second portion of the condensable components; passing the third gas stream through a second separator to remove the condensed second portion and obtain a dried gas stream; and ieLirculating at least a portion ofthe condensed second portion into the in-line gas mixer as the cold liquid stream.
A method that combines a fuel cell with a Gas Recovery Unit (GRU) to a methanol plant to produce methanol at near zero GHG emissions. The fuel cell generates steam, carbon dioxide and electricity. A GRU unit condenses, separates, recovers, pressurizes and reheats the fuel cell anode exhaust stream. The GRU prepares a stream of natural gas and steam to feed the fuel cell anode and a stream of carbon dioxide and air to feed the fuel cell cathode. The GRU also prepares streams of carbon dioxide and steam as reactants for the stoichiometric mixture with natural gas to produce synthesis gas in an electric catalytic reformer at a methanol plant. The electric catalytic reformer uses electricity, steam and/or carbon dioxide reactants produced by the fuel cell to produce synthesis gas for conversion to methanol with low GHG emissions.
C01B 3/34 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants
C01B 3/02 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène
C01B 3/38 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants avec des catalyseurs
C10L 3/00 - Combustibles gazeuxGaz naturelGaz naturel de synthèse obtenu par des procédés non prévus dans les sous-classes , Gaz de pétrole liquéfié
H01M 8/0662 - Traitement des réactifs gazeux ou des résidus gazeux, p. ex. nettoyage
7.
Production of petrochemical feedstocks and products using a fuel cell
A method of producing petrochemicals using a hydrocarbon fuel cell includes the steps of operating the fuel cell to produce electricity, thermal energy, and one or more exhaust stream, the one or more exhaust stream comprising at least a carbon-containing gas and water, reacting at least a portion of the exhaust stream with the reactant stream of natural gas to produce one or more petrochemical streams in a reactor, and heating one or more reactants using at least a portion of at least one of the electricity and the thermal energy.
H01M 8/04 - Dispositions auxiliaires, p. ex. pour la commande de la pression ou pour la circulation des fluides
C07C 29/48 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par des réactions d'oxydation avec formation de groupes hydroxyle
H01M 8/04014 - Échange de chaleur par des fluides gazeuxÉchange de chaleur par combustion des réactifs
H01M 8/0612 - Combinaison d’éléments à combustible avec des moyens de production de réactifs ou pour le traitement de résidus avec des moyens de production des réactifs gazeux à partir de matériaux contenant du carbone
8.
Method to recover and process methane and condensates from flare gas systems
A method to recover and process hydrocarbons from a gas flare system to produce natural gas liquids (NGL), cold compressed natural gas (CCNG), compressed natural gas (CNG) and liquid natural gas (LNG). The method process provides the energy required to recover and process the hydrocarbon gas stream through compression and expansion of the various streams.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
E21B 43/34 - Aménagements pour séparer les matériaux produits par le puits
9.
Method to recover LPG and condensates from refineries fuel gas streams
+ fractions upstream of a fractionator. The temperature of the gas stream entering the fractionator may be monitored downstream of the in-line mixer. The pre-cooled stream of high pressure natural gas is sufficiently cooled by flowing through a gas expander that, when mixed with the pre-cooled refinery fuel gas, the resulting temperature causes condensation of heavier hydrocarbon fractions before entering the fractionator. A further cooled, pressure expanded natural gas reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature may be controlled by a circulating reboiler stream.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
A method of upgrading oil using supercritical fluids generated by a fuel cell. The process uses supercritical carbon dioxide to control the specific gravity of the oil and supercritical water, the amount of which is controlled to achieve a desired oil/water ratio in processing oils to be upgraded. The process recovers the GHG emission stream from a fuel cell anode exhaust to produce supercritical fluids.
C09K 8/592 - Compositions utilisées en combinaison avec de la chaleur générée, p. ex. par injection de vapeur
C10G 9/36 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures par contact direct avec des fluides inertes préchauffés, p. ex. avec des métaux ou sels fondus avec des gaz ou vapeurs chauds
E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
E21B 43/24 - Procédés de récupération assistée pour l'extraction d'hydrocarbures utilisant la chaleur, p. ex. injection de vapeur
E21B 43/40 - Séparation associée à la réinjection de matériaux séparés
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
H01M 8/0662 - Traitement des réactifs gazeux ou des résidus gazeux, p. ex. nettoyage
11.
PRODUCTION OF PETROCHEMICAL FEEDSTOCKS AND PRODUCTS USING A FUEL CELL
A method of producing petrochemicals using a hydrocarbon fuel cell includes the steps of operating the fuel cell to produce electricity, thermal energy, and one or more exhaust stream, the one or more exhaust stream comprising at least a carbon-containing gas and water, reacting at least a portion of the exhaust stream with the reactant stream of natural gas to produce one or more petrochemical streams in a reactor, and heating one or more reactants using at least a portion of at least one of the electricity and the thermal energy.
A method of producing petrochemicals using a hydrocarbon fuel cell includes the steps of operating the fuel cell to produce electricity, thermal energy, and one or more exhaust stream, the one or more exhaust stream comprising at least a carbon- containing gas and water, reacting at least a portion of the exhaust stream with the reactant stream of natural gas to produce one or more petrochemical streams in a reactor, and heating one or more reactants using at least a portion of at least one of the electricity and the thermal energy.
C07C 29/152 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction exclusivement des oxydes de carbone avec de l'hydrogène ou des gaz contenant de l'hydrogène caractérisée par le réacteur utilisé
H01M 8/0662 - Traitement des réactifs gazeux ou des résidus gazeux, p. ex. nettoyage
C07C 29/15 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction exclusivement des oxydes de carbone
13.
A METHOD TO RECOVER LPG AND CONDENSATES FROM REFINERIES FUEL GAS STREAMS
A method to recover hydrocarbonfractions from refineries gas streams involves a pre-cooled heat refinery fuel gas stream mixed with a pre-cooled and expanded supply of natural gas stream in an inline mixer to condense and recover at least C3 + fractions upstream of a fractionator. The temperature of the gas stream entering the fractionator may be monitored downstream of the in-line mixer. The pre-cooled stream of high pressure natural gas is sufficiently cooled by flowing through a gas expander that, when mixed with the pre- cooled refinery fuel gas, the resulting temperature causes condensation of heavier hydrocarbon fractions before entering the fractionator. A further cooled, pressure expanded natural gas reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature may be controlled by a circulating reboiler stream.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
14.
A METHOD TO RECOVER LPG AND CONDENSATES FROM REFINERIES FUEL GAS STREAMS
33 + fractions upstream of a fractionator. The temperature of the gas stream entering the fractionator may be monitored downstream of the in-line mixer. The pre-cooled stream of high pressure natural gas is sufficiently cooled by flowing through a gas expander that, when mixed with the pre- cooled refinery fuel gas, the resulting temperature causes condensation of heavier hydrocarbon fractions before entering the fractionator. A further cooled, pressure expanded natural gas reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature may be controlled by a circulating reboiler stream.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
15.
A METHOD TO RECOVER LPG AND CONDENSATES FROM REFINERIES FUEL GAS STREAMS
A method to recover hydrocarbonfractions from refineries gas streams involves a pre-cooled heat refinery fuel gas stream mixed with a pre-cooled and expanded supply of natural gas stream in an inline mixer to condense and recover at least C3+ fractions upstream of a fractionator. The temperature of the gas stream entering the fractionator may be monitored downstream of the in-line mixer. The pre-cooled stream of high pressure natural gas is sufficiently cooled by flowing through a gas expander that, when mixed with the pre-cooled refinery fuel gas, the resulting temperature causes condensation of heavier hydrocarbon fractions before entering the fractionator. A further cooled, pressure expanded natural gas reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature may be controlled by a circulating reboiler stream.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
C10L 3/00 - Combustibles gazeuxGaz naturelGaz naturel de synthèse obtenu par des procédés non prévus dans les sous-classes , Gaz de pétrole liquéfié
16.
A METHOD TO RECOVER AND PROCESS METHANE AND CONDENSATES FROM FLARE GAS SYSTEMS
A method to recover and process hydrocarbons from a gas flare system to produce natural gas liquids (NGL), cold compressed natural gas (CCNG), compressed natural gas (CNG) and liquid natural gas (LNG). The method process provides the energy required to recover and process the hydrocarbon gas stream through compression and expansion of the various streams.
A method of producing temperature and pressure conditioned fluids using a fuel cell. The fuel cell generates an anode exhaust stream of water vapour and carbon dioxide. The water in the exhaust stream is condensed and separated to produce a stream of water and a stream of carbon dioxide. A first portion of the stream of water is heated to produce a stream of steam, which is combined with the fuel to form the anode input stream. A stream of condensed carbon dioxide is obtained by condensing at least a portion of the carbon dioxide in the stream of carbon dioxide. At least one fluid is heated and compressed to a target temperature and pressure for each fluid, the at least one fluid comprising a second portion of the stream of water or at least a portion of the condensed carbon dioxide.
H01M 8/0668 - Élimination du monoxyde de carbone ou du dioxyde de carbone
H01M 8/04014 - Échange de chaleur par des fluides gazeuxÉchange de chaleur par combustion des réactifs
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
C09K 8/592 - Compositions utilisées en combinaison avec de la chaleur générée, p. ex. par injection de vapeur
C09K 8/594 - Compositions utilisées en combinaison avec du gaz injecté
E21B 43/24 - Procédés de récupération assistée pour l'extraction d'hydrocarbures utilisant la chaleur, p. ex. injection de vapeur
E21B 36/00 - Aménagements pour le chauffage, le refroidissement ou l'isolation dans les trous de forage ou dans les puits, p. ex. pour être utilisés dans les zones de permagel
E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
F24H 8/00 - Appareils de chauffage de fluides caractérisés par des moyens pour extraire par condensation la chaleur latente des fumées
18.
Method of preparing natural gas at a gas pressure reduction stations to produce liquid natural gas (LNG)
A method to pre-treat an inlet natural gas stream at gas pressure reduction stations to produce LNG removes water and carbon dioxide from a natural gas stream. The energy required for the process is provided by recovering pressure energy in the inlet gas stream. The process eliminates the conventional gas pre-heating process at pressure reductions stations employing gas combustion heaters. The process provides a method to produce LNG at natural gas pressure reduction that meets product specifications.
B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
19.
Method of extracting coal bed methane using carbon dioxide
A method to extract methane from a coal bed seam with carbon dioxide produced and recovered from a fuel cell anode exhaust stream while simultaneously sequestering the carbon dioxide on the coal. The process produces methane to supply a fuel cell to generate electricity while reducing or eliminating GHG emissions.
E21B 43/00 - Procédés ou dispositifs pour l'extraction de pétrole, de gaz, d'eau ou de matériaux solubles ou fusibles ou d'une suspension de matières minérales à partir de puits
H01M 8/0612 - Combinaison d’éléments à combustible avec des moyens de production de réactifs ou pour le traitement de résidus avec des moyens de production des réactifs gazeux à partir de matériaux contenant du carbone
B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
A method to enhance the production of oil from underground oil deposits recovers the anode exhaust stream components and thermal energy from a fuel cell for injection in a well pipeline to heat, displace and flow oil into a production well pipeline at optimal reservoir pressure and operating conditions. The process recovers and injects the GHG emission stream from a fuel cell anode exhaust stream into an oil reservoir to increase oil production.
C09K 8/592 - Compositions utilisées en combinaison avec de la chaleur générée, p. ex. par injection de vapeur
C09K 8/594 - Compositions utilisées en combinaison avec du gaz injecté
E21B 43/24 - Procédés de récupération assistée pour l'extraction d'hydrocarbures utilisant la chaleur, p. ex. injection de vapeur
H01M 8/0668 - Élimination du monoxyde de carbone ou du dioxyde de carbone
E21B 36/00 - Aménagements pour le chauffage, le refroidissement ou l'isolation dans les trous de forage ou dans les puits, p. ex. pour être utilisés dans les zones de permagel
E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
F24H 8/00 - Appareils de chauffage de fluides caractérisés par des moyens pour extraire par condensation la chaleur latente des fumées
H01M 8/04014 - Échange de chaleur par des fluides gazeuxÉchange de chaleur par combustion des réactifs
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
A method to establish an adsorption/desorption process by injecting carbon dioxide into a coal bed involves injecting a carbon dioxide stream in a coal bed such that it is adsorbed by the coal bed and such that methane stored in the coal bed is desorbed and displaced. The displaced methane is extracted and processed for distribution.
A62D 3/00 - Procédés pour rendre les substances chimiques nuisibles inoffensives ou moins nuisibles en effectuant un changement chimique dans les substances
B01D 53/02 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse
22.
Method of preparing natural gas to produce liquid natural gas (LNG)
A method of stripping carbon dioxide from a stream of natural gas to be used in the production of liquid natural gas (LNG) comprises the steps of: passing a stream of natural gas through a stripping column; injecting a stripping agent into the stripping column, the stripping agent stripping carbon dioxide from the stream of natural gas and exiting the stripping column as a liquid phase; passing the stripping agent exiting the stripping column through a regenerator column to generate a carbon dioxide gas stream and a recovered stripping agent stream; and cooling the recovered stripping agent stream using a cryogenic vapour generated in the production of LNG and injecting the cooled, recovered stripping agent stream into the stripping column as the stripping agent.
B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
A method to establish an adsorption/desorption process by injecting carbon dioxide into a coal bed involves injecting a carbon dioxide stream in a coal bed such that it is adsorbed by the coal bed and such that methane stored in the coal bed is desorbed and displaced. The displaced methane is extracted and processed for distribution.
A method to recover and process hydrocarbons from a gas flare system to produce natural gas liquids (NGL), cold compressed natural gas (CCNG), compressed natural gas (CNG) and liquid natural gas (LNG). The method process provides the energy required to recover and process the hydrocarbon gas stream through compression and expansion of the various streams.
F25J 3/00 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
E21B 43/34 - Aménagements pour séparer les matériaux produits par le puits
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
25.
Method of removing carbon dioxide during liquid natural gas production from natural gas at gas pressure letdown stations
A method is described for removing carbon dioxide during Liquid Natural Gas production from natural gas at gas pressure letdown stations. The above method removes carbon dioxide from a Liquid Natural Gas production stream by using hydrocarbon fractions taken from a gas for consumption stream as a carbon dioxide stripping adsorption agent for a stripping column used to remove carbon dioxide.
F25J 3/08 - Séparation des impuretés gazeuses des gaz ou des mélanges gazeux
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p. ex. de l'hélium, de l'hydrogène
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
26.
METHOD OF EXTRACTING COAL BED METHANE USING CARBON DIOXIDE
A method to extract methane from a coal bed seam with carbon dioxide produced and recovered from a fuel cell anode exhaust stream while simultaneously sequestering the carbon dioxide on the coal. The process produces methane to supply a fuel cell to generate electricity while reducing or eliminating GHG emissions.
E21B 43/18 - Procédés par recompression ou par le vide
E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
H01M 8/04007 - Dispositions auxiliaires, p. ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur
H01M 8/0612 - Combinaison d’éléments à combustible avec des moyens de production de réactifs ou pour le traitement de résidus avec des moyens de production des réactifs gazeux à partir de matériaux contenant du carbone
H01M 8/0668 - Élimination du monoxyde de carbone ou du dioxyde de carbone
27.
METHOD OF EXTRACTING COAL BED METHANE USING CARBON DIOXIDE
A method to extract methane from a coal bed seam with carbon dioxide produced and recovered from a fuel cell anode exhaust stream while simultaneously sequestering the carbon dioxide on the coal. The process produces methane to supply a fuel cell to generate electricity while reducing or eliminating GHG emissions.
E21B 43/18 - Procédés par recompression ou par le vide
H01M 8/04007 - Dispositions auxiliaires, p. ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur
H01M 8/0612 - Combinaison d’éléments à combustible avec des moyens de production de réactifs ou pour le traitement de résidus avec des moyens de production des réactifs gazeux à partir de matériaux contenant du carbone
H01M 8/0668 - Élimination du monoxyde de carbone ou du dioxyde de carbone
E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
A method of upgrading oil using supercritical fluids generated by a fuel cell. The process uses supercritical carbon dioxide to control the specific gravity of the oil and supercritical water, the amount of which is controlled to achieve a desired oil/water ratio in processing oils to be upgraded. The process recovers the GHG emission stream from a fuel cell anode exhaust to produce supercritical fluids.
C10G 31/06 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par chauffage, refroidissement ou traitement par la pression
C10G 9/40 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures par contact indirect avec un fluide préchauffé autre que des gaz de combustion chauds
H01M 8/0662 - Traitement des réactifs gazeux ou des résidus gazeux, p. ex. nettoyage
A method of upgrading oil using supercritical fluids generated by a fuel cell. The process uses supercritical carbon dioxide to control the specific gravity of the oil and supercritical water, the amount of which is controlled to achieve a desired oil/water ratio in processing oils to be upgraded. The process recovers the GHG emission stream from a fuel cell anode exhaust to produce supercritical fluids.
A method of producing temperature and pressure conditioned fluids using a fuel cell. The fuel cell generates an anode exhaust stream of water vapour and carbon dioxide. The water in the exhaust stream is condensed and separated to produce a stream of water and a stream of carbon dioxide. A first portion of the stream of water is heated to produce a stream of steam, which is combined with the fuel to form the anode input stream. A stream of condensed carbon dioxide is obtained by condensing at least a portion of the carbon dioxide in the stream of carbon dioxide. At least one fluid is heated and compressed to a target temperature and pressure for each fluid, the at least one fluid comprising a second portion of the stream of water or at least a portion of the condensed carbon dioxide.
A method of producing temperature and pressure conditioned fluids using a fuel cell. The fuel cell generates an anode exhaust stream of water vapour and carbon dioxide. The water in the exhaust stream is condensed and separated to produce a stream of water and a stream of carbon dioxide. A first portion of the stream of water is heated to produce a stream of steam, which is combined with the fuel to form the anode input stream. A stream of condensed carbon dioxide is obtained by condensing at least a portion of the carbon dioxide in the stream of carbon dioxide. At least one fluid is heated and compressed to a target temperature and pressure for each fluid, the at least one fluid comprising a second portion of the stream of water or at least a portion of the condensed carbon dioxide.
A method to enhance the production of oil from underground oil deposits recovers the anode exhaust stream components and thermal energy from a fuel cell for injection in a well pipeline to heat, displace and flow oil into a production well pipeline at optimal reservoir pressure and operating conditions. The process recovers and injects the GHG emission stream from a fuel cell anode exhaust stream into an oil reservoir to increase oil production.
A method to enhance the production of oil from underground oil deposits recovers the anode exhaust stream components and thermal energy from a fuel cell for injection in a well pipeline to heat, displace and flow oil into a production well pipeline at optimal reservoir pressure and operating conditions. The process recovers and injects the GHG emission stream from a fuel cell anode exhaust stream into an oil reservoir to increase oil production.
A method of stripping carbon dioxide from a stream of natural gas to be used in the production of liquid natural gas (LNG) comprises the steps of: passing a stream of natural gas through a stripping column; injecting a stripping agent into the stripping column, the stripping agent stripping carbon dioxide from the stream of natural gas and exiting the stripping column as a liquid phase; passing the stripping agent exiting the stripping column through a regenerator column to generate a carbon dioxide gas stream and a recovered stripping agent stream; and cooling the recovered stripping agent stream using a cryogenic vapour generated in the production of LNG and injecting the cooled, recovered stripping agent stream into the stripping column as the stripping agent.
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
A method to pre-treat an inlet natural gas stream at gas pressure reduction stations to produce LNG removes water and carbon dioxide from a natural gas stream. The energy required for the process is provided by recovering pressure energy in the inlet gas stream. The process eliminates the conventional gas pre-heating process at pressure reductions stations employing gas combustion heaters. The process provides a method to produce LNG at natural gas pressure reduction that meets product specifications.
A method to pre-treat an inlet natural gas stream at gas pressure reduction stations to produce LNG removes water and carbon dioxide from a natural gas stream. The energy required for the process is provided by recovering pressure energy in the inlet gas stream. The process eliminates the conventional gas pre-heating process at pressure reductions stations employing gas combustion heaters. The process provides a method to produce LNG at natural gas pressure reduction that meets product specifications.
A method of stripping carbon dioxide from a stream of natural gas to be used in the production of liquid natural gas (LNG) comprises the steps of: passing a stream of natural gas through a stripping column; injecting a stripping agent into the stripping column, the stripping agent stripping carbon dioxide from the stream of natural gas and exiting the stripping column as a liquid phase; passing the stripping agent exiting the stripping column through a regenerator column to generate a carbon dioxide gas stream and a recovered stripping agent stream; and cooling the recovered stripping agent stream using a cryogenic vapour generated in the production of LNG and injecting the cooled, recovered stripping agent stream into the stripping column as the stripping agent.
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
There is provided a method to produce PLNG and CCNG at Straddle Plants. In contrast to present practice at Straddle Plants, there is added a slipstream of high pressure, pre-treated, pre-cooled natural gas stream to feed a new PLNG and or CCNG production section. This slipstream is further cooled in a heat exchanger by a counter-current vapour fraction of the expanded gas before entering an expander apparatus. The cooled gas is expanded into a separator. The cold vapour fraction from the separator is routed and expanded to the Straddle Plant fractionator. The produced PLNG is routed to storage.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
39.
A METHOD TO PRODUCE PLNG AND CCNG AT STRADDLE PLANTS
There is provided a method to produce PLNG and CCNG at Straddle Plants. In contrast to present practice at Straddle Plants, there is added a slipstream of high pressure, pre-treated, pre-cooled natural gas stream to feed a new PLNG and or CCNG production section. This slipstream is further cooled in a heat exchanger by a counter- current vapour fraction of the expanded gas before entering an expander apparatus. The cooled gas is expanded into a separator. The cold vapour fraction from the separator is routed and expanded to the Straddle Plant fractionator. The produced PLNG is routed to storage.
A method to produce LNG at straddle plants. In contrast to known methods, there is provided a slipstream of a high pressure, pre-treated, pre-cooled natural gas stream to a straddle LNG plant section. The slipstream is further cooled, and processed in a high pressure column to a methane content of 85% or 85 plus by mole. The processed stream is further treated to remove carbon dioxide. The de-carbonated high pressure stream is further cooled in a heat exchanger by a counter-current vapor fraction of the expanded gas before entering an expander apparatus. The processed, treated and cooled gas is expanded into a separator. The produced LNG fraction is pumped to storage. A portion of the LNG fraction is used as a reflux stream to the high pressure column. The cold vapor fraction from the separator flows through counter-current heat exchangers, giving up its coolth energy before being re-compressed into the high pressure transmission gas pipeline.
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p. ex. de l'hélium, de l'hydrogène
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
41.
A METHOD OF REMOVING CARBON DIOXIDE DURING LIQUID NATURAL GAS PRODUCTION FROM NATURAL GAS AT GAS PRESSURE LETDOWN STATIONS
A method is described for removing carbon dioxide during Liquid Natural Gas production from natural gas at gas pressure letdown stations. The above method removes carbon dioxide from a Liquid Natural Gas production stream by using hydrocarbon fractions taken from a gas for consumption stream as a carbon dioxide stripping adsorption agent for a stripping column used to remove carbon dioxide.
A method is described for removing carbon dioxide during Liquid Natural Gas production from natural gas at gas pressure letdown stations. The above method removes carbon dioxide from a Liquid Natural Gas production stream by using hydrocarbon fractions taken from a gas for consumption stream as a carbon dioxide stripping adsorption agent for a stripping column used to remove carbon dioxide.
A method and apparatus for upgrading heavy oil is described, having a symbiotic relationship between a cracking reactor vessel and a steam reformer vessel. A first portion of an uncracked residue oil stream from the cracking reactor vessel is passed through a heat exchanger positioned within the steam reformer vessel and back to the cracking reactor vessel, such that a heat exchange takes place which heats the uncracked residue oil stream to promote cracking. A second portion of the uncracked residue oil stream from the cracking reactor vessel is injected directly into the steam reformer vessel. That portion of the uncracked residue oil stream not vaporized in the steam reformer vessel is converted into coke which becomes deposited in a fluidized bed of the steam reformer vessel. The fluidized bed activates steam which reacts with the coke to generate hydrogen. Hydrogen from the steam reformer vessel is directed into the cracking reactor vessel to assist with cracking.
C10G 47/02 - Craquage des huiles d'hydrocarbures, en présence d'hydrogène ou de composés donneurs d'hydrogène, pour obtenir des fractions à point d'ébullition inférieur caractérisé par le catalyseur utilisé
C10G 47/26 - Craquage des huiles d'hydrocarbures, en présence d'hydrogène ou de composés donneurs d'hydrogène, pour obtenir des fractions à point d'ébullition inférieur avec des particules solides en mouvement en suspension dans de l'huile, p. ex. sous forme de bouillie
C10G 47/30 - Craquage des huiles d'hydrocarbures, en présence d'hydrogène ou de composés donneurs d'hydrogène, pour obtenir des fractions à point d'ébullition inférieur avec des particules solides en mouvement selon la technique du "lit fluidisé"
C01B 3/34 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants
44.
Method of producing and distributing liquid natural gas
A method for producing liquid natural gas (LNG) includes the following steps. Compressor stations forming part of existing natural-gas distribution network are identified. Compressor stations that are geographically suited for localized distribution of LNG are selected. Natural gas flowing through the selected compressor stations is diverted to provide a high pressure first natural gas stream and a high pressure second natural gas stream. A pressure of the first natural gas stream is lowered to produce cold temperatures through pressure let-down gas expansion and then the first natural gas stream is consumed as a fuel gas for an engine driving a compressor at the compressor station. The second natural gas stream is first cooled with the cold temperatures generated by the first natural gas stream, and then expanded to a lower pressure, thus producing LNG.
F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p. ex. de l'hélium, de l'hydrogène
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
45.
Method to recover LPG and condensates from refineries fuel gas streams
+ fractions before entering the fractionator. A LNG reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature is controlled by a circulating reboiler stream.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
C01B 3/50 - Séparation de l'hydrogène ou des gaz contenant de l'hydrogène à partir de mélanges gazeux, p. ex. purification
C10G 5/06 - Récupération de mélanges liquides d'hydrocarbures à partir de gaz, p. ex. gaz naturel par refroidissement ou compression
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
46.
Temperature controlled method to liquefy gas and a production plant using the method
A method for liquefying gas involving pre-treating the gas stream in a pre-treater to remove impurities, and then passing the gas stream through a first flow path of a first heat exchanger to lower a temperature of the gas stream. The gas stream is then passed through the gas expansion turbine to lower a pressure of the gas stream and further decrease the temperature of the gas stream. The gas stream is then passed into a primary separator to separate the gas stream into a liquid stream and a cold gas stream. The liquid stream is collected. Selected quantities of the cold gas stream are passed through a second flow path of the first heat exchanger whereby a heat exchange takes place to cool the gas stream flowing through the first flow path to maintain the temperature of the gas stream entering the gas expansion turbine at a temperature which promotes the production of liquids.
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p. ex. de l'hélium, de l'hydrogène
A method to produce LNG at straddle plants. In contrast to known methods, there is provided a slipstream of a high pressure, pre-treated, pre-cooled natural gas stream to a straddle LNG plant section. The slipstream is further cooled, and processed in a high pressure column to a methane content of 85% or 85 plus by mole. The processed stream is further treated to remove carbon dioxide. The de-carbonated high pressure stream is further cooled in a heat exchanger by a counter-current vapour fraction of the expanded gas before entering an expander apparatus. The processed, treated and cooled gas is expanded into a separator. The produced LNG fraction is pumped to storage. A portion of the LNG fraction is used as a reflux stream to the high pressure column. The cold vapour fraction from the separator flows through counter-current heat exchangers, giving up its coolth energy before being re- compressed into the high pressure transmission gas pipeline.
A method to produce LNG at straddle plants. In contrast to known methods, there is provided a slipstream of a high pressure, pre-treated, pre-cooled natural gas stream to a straddle LNG plant section. The slipstream is further cooled, and processed in a high pressure column to a methane content of 85% or 85 plus by mole. The processed stream is further treated to remove carbon dioxide. The de-carbonated high pressure stream is further cooled in a heat exchanger by a counter-current vapour fraction of the expanded gas before entering an expander apparatus. The processed, treated and cooled gas is expanded into a separator. The produced LNG fraction is pumped to storage. A portion of the LNG fraction is used as a reflux stream to the high pressure column. The cold vapour fraction from the separator flows through counter-current heat exchangers, giving up its coolth energy before being recompressed into the high pressure transmission gas pipeline.
A method and apparatus for upgrading heavy oil is described, having a symbiotic relationship between a cracking reactor vessel and a steam reformer vessel. A first portion of an uncracked residue oil stream from the cracking reactor vessel is passed through a heat exchanger positioned within the steam reformer vessel and back to the cracking reactor vessel, such that a heat exchange takes place which heats the uncracked residue oil stream to promote cracking. A second portion of the uncracked residue oil stream from the cracking reactor vessel is injected directly into the steam reformer vessel. That portion of the uncracked residue oil stream not vaporized in the steam reformer vessel is converted into coke which becomes deposited in a fluidized bed of the steam reformer vessel. The fluidized bed activates steam which reacts with the coke to generate hydrogen. Hydrogen from the steam reformer vessel is directed into the cracking reactor vessel to assist with cracking.
C10G 63/04 - Traitement d'essence "naphta" par au moins un procédé de réformage et au moins un procédé de conversion uniquement par plusieurs étapes en série comprenant au moins une étape de craquage
A method and apparatus for upgrading heavy oil is described, having a symbiotic relationship between a cracking reactor vessel and a steam reformer vessel. A first portion of an uncracked residue oil stream from the cracking reactor vessel is passed through a heat exchanger positioned within the steam reformer vessel and back to the cracking reactor vessel, such that a heat exchange takes place which heats the uncracked residue oil stream to promote cracking. A second portion of the uncracked residue oil stream from the cracking reactor vessel is injected directly into the steam reformer vessel. That portion of the uncracked residue oil stream not vaporized in the steam reformer vessel is converted into coke which becomes deposited in a fluidized bed of the steam reformer vessel. The fluidized bed activates steam which reacts with the coke to generate hydrogen. Hydrogen from the steam reformer vessel is directed into the cracking reactor vessel to assist with cracking.
C10G 63/04 - Traitement d'essence "naphta" par au moins un procédé de réformage et au moins un procédé de conversion uniquement par plusieurs étapes en série comprenant au moins une étape de craquage
51.
A METHOD TO PRODUCE LNG AT GAS PRESSURE LETDOWN STATIONS IN NATURAL GAS TRANSMISSION PIPELINE SYSTEMS
There is described a method to produce LNG at gas pressure letdown stations. A high pressure gas stream is pre-cooled, dewatered, and then divided into two streams: a diverted LNG production stream (LNG stream) and a gas to end users stream (User stream). Carbon dioxide is removed from the LNG stream and the LNG stream is compressed. The LNG stream is then precooled by passing through one or more heat exchangers. Hydrocarbon condensate is removed from the LNG steam by passing the LNG stream through a first Knock Out drum. The LNG stream is then depressured by passing through a JT valve to depressurize the gas vapour exiting the first Knock Out drum and discharge it into a second Knock Out drum where the LNG is captured.
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
C10L 1/04 - Combustibles carbonés liquides à base essentielle de mélanges d'hydrocarbures
C10L 3/06 - Gaz naturelGaz naturel de synthèse obtenu par des procédés non prévus dans , ou
52.
A METHOD TO PRODUCE LNG AT GAS PRESSURE LETDOWN STATIONS IN NATURAL GAS TRANSMISSION PIPELINE SYSTEMS
There is described a method to produce LNG at gas pressure letdown stations. A high pressure gas stream is pre-cooled, dewatered, and then divided into two streams: a diverted LNG production stream (LNG stream) and a gas to end users stream (User stream). Carbon dioxide is removed from the LNG stream and the LNG stream is compressed. The LNG stream is then precooled by passing through one or more heat exchangers. Hydrocarbon condensate is removed from the LNG steam by passing the LNG stream through a first Knock Out drum. The LNG stream is then depressured by passing through a JT valve to depressurize the gas vapour exiting the first Knock Out drum and discharge it into a second Knock Out drum where the LNG is captured.
A method for producing liquid natural gas (LNG) includes the following steps. Compressor stations forming part of existing natural-gas distribution network are identified. Compressor stations that are geographically suited for localized distribution of LNG are selected. Natural gas flowing through the selected compressor stations is diverted to provide a high pressure first natural gas stream and a high pressure second natural gas stream. A pressure of the first natural gas stream is lowered to produce cold temperatures through pressure let-down gas expansion and then the first natural gas stream is consumed as a fuel gas for an engine driving a compressor at the compressor station. The second natural gas stream is first cooled with the cold temperatures generated by the first natural gas stream, and then expanded to a lower pressure, thus producing LNG.
A method for producing liquid natural gas (LNG) includes the following steps. Compressor stations forming part of existing natural-gas distribution network are identified. Compressor stations that are geographically suited for localized distribution of LNG are selected. Natural gas flowing through the selected compressor stations is diverted to provide a high pressure first natural gas stream and a high pressure second natural gas stream. A pressure of the first natural gas stream is lowered to produce cold temperatures through pressure let-down gas expansion and then the first natural gas stream is consumed as a fuel gas for an engine driving a compressor at the compressor station. The second natural gas stream is first cooled with the cold temperatures generated by the first natural gas stream, and then expanded to a lower pressure, thus producing LNG.
A method to recover olefins and C2+ fractions from refineries gas streams. The traditional recovery methods employed at refineries are absorption with solvents and cryogenic technology using compression and expansion aided by external refrigeration systems. In contrast to known methods, there is provided first a pre-cooling heat exchanger on a feed line feeding the gas stream to a in-line mixer, secondly by injecting and mixing a stream of LNG to condense the C2+ fractions upstream of the fractionator. The temperature of the gas stream entering the fractionator is monitored downstream of the in-line mixer. A LNG stream is temperature controlled to flow through the injection inlet and mix with the feed gas at a temperature which results in the condensation of the C2+ fractions before entering the fractionator. A LNG reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature is controlled by a circulating reboiler stream.
A method to recover olefins and C2+ fractions from refineries gas streams. The traditional recovery methods employed at refineries are absorption with solvents and cryogenic technology using compression and expansion aided by external refrigeration systems. In contrast to known methods, there is provided first a pre-cooling heat exchanger on a feed line feeding the gas stream to a in-line mixer, secondly by injecting and mixing a stream of LNG to condense the C2+ fractions upstream of the fractionator. The temperature of the gas stream entering the fractionator is monitored downstream of the in- line mixer. A LNG stream is temperature controlled to flow through the injection inlet and mix with the feed gas at a temperature which results in the condensation of the C2+ fractions before entering the fractionator. A LNG reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature is controlled by a circulating reboiler stream.
A method for liquefying gas involving pre-treating the gas stream in a pre-treater to remove impurities, and then passing the gas stream through a first flow path of a first heat exchanger to lower a temperature of the gas stream. The gas stream is then passed though the gas expansion turbine to lower a pressure of the gas stream and further decrease the temperature of the gas stream. The gas stream is then passed into a primary separator to separate the gas stream into a liquid stream and a cold gas stream. The liquid stream is collected. Selected quantities of the cold gas stream are passed through a second flow path of the first heat exchanger whereby a heat exchange takes place to cool the gas stream flowing through the first flow path to maintain the temperature of the gas stream entering the gas expansion turbine at a temperature which promotes the production of liquids.
A method for liquefying gas involving pre-treating the gas stream in a pre- treater to remove impurities, and then passing the gas stream through a first flow path of a first heat exchanger to lower a temperature of the gas stream. The gas stream is then passed though the gas expansion turbine to lower a pressure of the gas stream and further decrease the temperature of the gas stream. The gas stream is then passed into a primary separator to separate the gas stream into a liquid stream and a cold gas stream. The liquid stream is collected. Selected quantities of the cold gas stream are passed through a second flow path of the first heat exchanger whereby a heat exchange takes place to cool the gas stream flowing through the first flow path to maintain the temperature of the gas stream entering the gas expansion turbine at a temperature which promotes the production of liquids.
The present invention provides a method for maximizing NGL's recovery at straddle plants and produce LNG. The method involves producing LNG and using the produced LNG as an external cooling source to control the operation of a de-methanizer column.
A method for production of liquid natural gas (LNG) at natural gas liquids (NGLs) recovery plants that maximizes NGLs recovery by producing LNG and using the produced LNG as an external cooling source to control the operation of a de-methanizer column at the NLG recovery facility. In at least one embodiment, LNG is added from an LNG overhead receiver by direct mixing to control the temperature profile in the NGL de-methanizer column. The temperature in an overhead product of the de-methanizer column is controlled by controlling addition of LNG as a reflux stream. The temperature in an expanded feed gas to the de-methanizer column is controlled by controlling addition of LNG as a tempering gas, while stripping of carbon dioxide from an NGL product stream is controlled by controlling the addition of LNG as stripping gas.
F25J 3/02 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par rectification, c.-à-d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
A cascading processor is described which includes a processor body having an upper inlet and a lower outlet, such that materials pass by force of gravity from inlet to the outlet. The processor body has a plurality of processing levels which are sequentially vertically spaced progressively downwardly from the inlet to the outlet, such that materials cascade by force of gravity from one processing level to another processing level as the materials pass through the processor body from the inlet to the outlet. This cascading processor was developed for recovery of bitumen from oil sands, but can be used to process oil shales or to process biomasses.
B03B 9/02 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux séparations pétrole/sable, pétrole/craie, pétrole/schistes, ozokérite, bitume ou similaires
C10G 1/00 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon
A cascading processor is described which includes a processor body having an upper inlet and a lower outlet, such that materials pass by force of gravity from inlet to the outlet. The processor body has a plurality of processing levels which are sequentially vertically spaced progressively downwardly from the inlet to the outlet, such that materials cascade by force of gravity from one processing level to another processing level as the materials pass through the processor body from the inlet to the outlet. This cascading processor was developed for recovery of bitumen from oil sands, but can be used to process oil shales or to process biomasses.
C10G 1/00 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon
B03B 9/02 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux séparations pétrole/sable, pétrole/craie, pétrole/schistes, ozokérite, bitume ou similaires
63.
Method to upgrade heavy oil in a temperature gradient reactor (TGR)
A method of upgrading heavy oil in which the heavy oil is preheated to above a boiling point of water to remove water as steam and lighter fractions as vapors. The heavy oil passes downwardly through a series of sequential horizontal heat gradients in a temperature gradient reactor. A temperature of each sequential heat gradient progressively increases so that lighter fractions of the heavy oil vaporize with minimal cracking and heavier heavy oil fractions continue to fall by force of gravity downwards. As they pass through further sequential heat gradients of progressively increasing temperature, they tend to crack into lighter fractions in the presence of nascent hydrogen. Coke, formed from heavier heavy oil fractions generated and deposited on a fluidized catalytic bed a bottom of the temperature gradient reactor, is fluidized with superheated steam. The superheated steam generates the nascent hydrogen required to promote hydrogen reactions by indirect heated steam reforming and water-gas shift reactions.
C10B 55/10 - Cokéfaction des huiles minérales, bitumes, goudrons ou analogues, ou de leurs mélanges, avec des matières carbonées solides avec des matières solides avec des matières solides en mouvement sous forme dispersée selon la technique du "lit fluidisé"
C10G 47/22 - Craquage non catalytique, en présence d'hydrogène
C10B 57/04 - Autres procédés de carbonisation ou de cokéfactionCaractéristiques générales des procédés de distillation destructive utilisant des charges de composition spéciale
C01B 3/10 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés inorganiques comportant un hydrogène lié électropositivement, p. ex. de l'eau, des acides, des bases, de l'ammoniac, avec des agents réducteurs inorganiques avec des métaux par réaction de la vapeur d'eau avec des métaux
C10G 31/06 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par chauffage, refroidissement ou traitement par la pression
C10G 69/04 - Traitement des huiles d'hydrocarbures par au moins un procédé d'hydrotraitement et au moins un autre procédé de conversion uniquement par plusieurs étapes en série comprenant au moins une étape de craquage catalytique en l'absence d'hydrogène
64.
METHOD OF RECOVERY OF NATURAL GAS LIQUIDS FROM NATURAL GAS AT NGLS RECOVERY PLANTS
A method to recover natural gas liquids from natural gas streams at NGL recovery plants. The present invention relates to methods using liquid natural gas (LNG) as an external source of stored cold energy to reduce the energy and improve the operation of NGL distillation columns. More particularly, the present invention provides methods to efficiently and economically achieve higher recoveries of natural gas liquids at NGL recovery plants.
A method of upgrading heavy oil in which the heavy oil is preheated to above a boiling point of water to remove water as steam and lighter fractions as vapours. The heavy oil passes downwardly through a series of sequential horizontal heat gradients in a temperature gradient reactor. A temperature of each sequential heat gradient progressively increases so that lighter fractions of the heavy oil vaporize with minimal cracking and heavier heavy oil fractions continue to fall by force of gravity downwards. As they pass through further sequential heat gradients of progressively increasing temperature, they tend to crack into lighter fractions in the presence of nascent hydrogen. Coke, formed from heavier heavy oil fractions generated and deposited on a fluidized catalytic bed a bottom of the temperature gradient reactor, is fluidized with superheated steam. The superheated steam generates the nascent hydrogen required to promote hydrogen reactions by indirect heated steam reforming and water-gas shift reactions.
C10G 49/18 - Traitement des huiles d'hydrocarbures, en présence d'hydrogène ou de composés donneurs d'hydrogène, non prévu dans un seul des groupes , , , ou en présence de composés donneurs d'hydrogène, p. ex. d'ammoniac, d'eau, de sulfure d'hydrogène
C10B 55/00 - Cokéfaction des huiles minérales, bitumes, goudrons ou analogues, ou de leurs mélanges, avec des matières carbonées solides
66.
Extraction and upgrading of bitumen from oil sands
A method to extract and process bitumen from oil sands involves processing in a pulse enhanced fluidized bed steam reactor, cracking the heavy hydrocarbon fractions, producing hydrogen in situ within the reactor and hydrogenating the cracked fractions using the natural bifunctional catalyst present in the oil sands. This method produces inert oil sands for soil rehabilitation and an upgraded oil stream.
C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par extraction
67.
EXTRACTION AND UPGRADING OF BITUMEN FROM OIL SANDS
A method to extract and process bitumen from oil sands involves processing in a pulse enhanced fluidised bed steam reactor, cracking the heavy hydrocarbon fractions, producing hydrogen in situ within the reactor and hydrogenating the cracked fractions using the natural bifunctional catalyst present in the oil sands. This method produces inert oil sands for soil rehabilitation and an upgraded oil stream.
C10G 1/06 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par hydrogénation destructive
68.
Method to condense and recover carbon dioxide from fuel cells
A method to condense and recover carbon dioxide. A first step involve providing at more than one heat exchanger, with each heat exchanger having a first flow path for passage of a first fluid and a second flow path for passage of a second fluid. A second step involves passing a stream of very cold natural gas sequentially along the first flow path of each heat exchanger until it is heated for distribution and concurrently passing a gaseous stream rich in carbon dioxide sequentially along the second flow path of each heat exchanger, allowing a gaseous portion of the gaseous stream rich in carbon dioxide to pass to a next sequential heat exchanger and capturing in a collection vessel the condensed carbon dioxide. This processes results in a cryogenic heat exchange in which natural gas at Metering and Pressure Reduction Stations is first cooled by reducing its pressure through a gas expander or a pressure reducing valve and then heated in a series of stages and the gaseous stream rich in carbon dioxide stream is separated in a series of stages through sequential cryogenic carbon dioxide separation and recovery.
A method of increasing the storage capacity of a natural gas storage cavern involves the step of adding liquefied natural gas to gaseous natural gas in the natural gas storage cavern. The addition of liquefied natural gas serves to reduce the temperature and associated pressure of gaseous natural gas in the natural gas storage cavern, thereby increasing the capacity of the natural gas storage cavern.
A method to pre-heat gas at gas Pressure Reducing Stations. A first step involve providing at least one electrical line heater having a flow path for passage of natural gas through electrical heating elements. A second step involves passing the high pressure cold natural gas stream along electrical heating elements and heating it up before de-pressurization. A third step involves the expansion of the high pressure heated gas in a enclosed vessel that houses a gas expander and power generator. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure gas cools the power generator. This process results in the recovery of energy to replace the slipstream of natural that is presently used to pre-heat gas at Pressure Reduction Stations.
F01K 25/02 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs le fluide restant à l'état liquide
71.
Method to produce natural gas liquids NGLs at gas Pressure Reduction Stations
A method to recover NGL's at gas Pressure Reducing Stations. A first step involve providing at least one heat exchanger having a flow path for passage of high pressure natural gas with a counter current depressurized lean cold gas. A second step involves passing the high pressure natural gas stream in a counter current flow with the lean cold gas and cooling it before de-pressurization. A third step involves the expansion of the high pressure cooled gas in a gas expander. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure and cold gas enters a separator where NGL's are recovered. This process results in the recovery NGL's, electricity and the displacement of a slipstream of natural that is presently used to pre-heat gas at Pressure Reduction Stations.
A method for selective extraction of natural gas liquids from “rich” natural gas. The method involves interacting a rich natural gas stream with Liquid Natural Gas (LNG) by mixing Liquid Natural Gas into the rich natural gas stream to lower the temperature of the rich natural gas stream to a selected hydrocarbon dew point, whereby a selected hydrocarbon liquid carried in the rich natural gas stream is condensed.
F25J 3/00 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification
B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
73.
Method to increase storage capacity of natural gas storage caverns with a refrigeration system
A method to increase the storage capacity of a natural gas storage cavern includes effecting a heat exchange in a heat exchanger between a stream of coolant from a refrigeration or cooling plant and a natural gas stream to cool the natural gas stream prior to injecting the natural gas stream into the natural gas storage cavern.
A method to increase the storage capacity of a natural gas storage cavern includes effecting a heat exchange in a heat exchanger between a stream of coolant from a refrigeration or cooling plant and a natural gas stream to cool the natural gas stream prior to injecting the natural gas stream into the natural gas storage cavern.
A method of conditioning natural gas in preparation for storage, involves taking an existing stream of continuously flowing natural gas flowing through a gas line (12) on its way to end users and diverting a portion of the stream of continuously flowing natural gas to a storage facility through a storage diversion line (22). The pressure of the natural gas is lowered, as is the temperature by the Joule-Thompson effect. The natural gas is passed in a single pass through a series of heat exchangers (18, 28,30, 32) prior to resuming flow through the gas line (12) at the lowered pressure. The diverted natural gas is liquefied in preparation for storage by effecting a heat exchange with the natural gas.
A method to increase gas mass flow loading rates to a gas storage cavern includes using liquid natural gas (LNG) to cool natural gas in a natural gas flow line upstream of a compressor used to compress gas for storage in to a gas storage cavern.
F25J 3/00 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification
B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
78.
METHOD TO PRODUCE NATURAL GAS LIQUIDS (NGL'S) AT GAS PRESSURE REDUCTION STATIONS
A method to recover NGL's at gas Pressure Reducing Stations. A first step involve providing at least one heat exchanger having a flow path for passage of high pressure natural gas with a counter current depressurized lean cold gas. A second step involves passing the high pressure natural gas stream in a counter current flow with the lean cold gas and cooling it before de-pressurization. A third step involves the expansion of the high pressure cooled gas in a gas expander. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure and cold gas enters a separator where NGL's are recovered. This process results in the recovery NGL's, electricity and the displacement of a slipstream of natural that is presently used to pre- heat gas at Pressure Reduction Stations.
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F23J 3/00 - Enlèvement des résidus solides se trouvant dans les passages ou dans les chambres situés au delà du foyer, p. ex. dans les conduits de fumée par souffleurs de suie
79.
METHOD TO PRE-HEAT NATURAL GAS AT GAS PRESSURE REDUCTION STATIONS
A method to pre-heat gas at gas Pressure Reducing Stations. A first step involve providing at least one electrical line heater having a flow path for passage of natural gas through electrical heating elements. A second step involves passing the high pressure cold natural gas stream along electrical heating elements and heating it up before de-pressurization. A third step involves the expansion of the high pressure heated gas in a enclosed vessel that houses a gas expander and power generator. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure gas cools the power generator. This process results in the recovery of energy to replace the slipstream of natural that is presently used to pre-heat gas at Pressure Reduction Stations.
F02C 1/04 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de gaz chauds ou de gaz sous pression non chauffés, comme fluide de travail le fluide de travail étant chauffé indirectement
F16L 53/32 - Chauffage des tuyaux ou des systèmes de tuyaux en utilisant des fluides chauds
C10G 75/00 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p. ex. de l'hélium, de l'hydrogène
80.
METHOD TO CONDENSE AND RECOVER CARBON DIOXIDE FROM FUEL CELLS
A method to condense and recover carbon dioxide. A first step involve providing at more than one heat exchanger, with each heat exchanger having a first flow path for passage of a first fluid and a second flow path for passage of a second fluid. A second step involves passing a stream of very cold natural gas sequentially along the first flow path of each heat exchanger until it is heated for distribution and concurrently passing a gaseous stream rich in carbon dioxide sequentially along the second flow path of each heat exchanger, allowing a gaseous portion of the gaseous stream rich in carbon dioxide to pass to a next sequential heat exchanger and capturing in a collection vessel the condensed carbon dioxide. This processes results in a cryogenic heat exchange in which natural gas at Metering and Pressure Reduction Stations is first cooled by reducing its pressure through a gas expander or a pressure reducing valve and then heated in a series of stages and the gaseous stream rich in carbon dioxide stream is separated in a series of stages through sequential cryogenic carbon dioxide separation and recovery.
F28D 7/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
H01M 8/0668 - Élimination du monoxyde de carbone ou du dioxyde de carbone
F28B 1/06 - Condenseurs dans lesquels la vapeur d'eau ou autre vapeur est séparée de l'agent de refroidissement par des parois, p. ex. condenseur à surface utilisant l'air ou un autre gaz comme agent de refroidissement
F28D 7/08 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations ayant une autre courbure, p. ex. en serpentins ou en zigzag
81.
METHOD TO CONDENSE AND RECOVER CARBON DIOXIDE (CO2) FROM CO2 CONTAINING GAS STREAMS
A method to condense and recover CO2 from CO2 containing streams. A first step involve providing at more than one heat exchanger, with each heat exchanger having a first flow path for passage of a first fluid and a second flow path for passage of a second fluid. A second step involves passing a stream of very cold natural gas sequentially along the second flow path of each heat exchanger until it is heated for distribution and concurrently passing a CO2 containing stream sequentially along the first flow path of each heat exchanger, allowing the water vapor portion of the CO2 containing stream to condense and precipitate on the condensing heat exchangers. A third step involves passing a water vapor free CO2 containing stream to a cryogenic heat exchanger to condense, precipitate and recover CO2. This processes results in the recovery of CO2 and water vapor from CO2 containing streams using condensing heat exchangers, chiller, compressor, expander and power generator to recover the low value thermal heat available in CO2 containing waste streams.
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
82.
METHOD FOR SELECTIVE EXTRACTION OF NATURAL GAS LIQUIDS FROM "RICH" NATURAL GAS
A method for selective extraction of natural gas liquids from "rich" natural gas. The method involves the step of effecting a heat exchange between a rich natural gas stream and a refrigerant fluid to lower a temperature of the rich natural gas stream. The heat exchange is controlled to lower the temperature of the rich natural gas stream to a selected hydrocarbon dew point in order to condense at least one selected hydrocarbon liquids carried in the rich natural gas stream.
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p. ex. de l'hélium, de l'hydrogène
E21B 43/34 - Aménagements pour séparer les matériaux produits par le puits
83.
METHOD FOR SELECTIVE EXTRACTION OF NATURAL GAS LIQUIDS FROM "RICH" NATURAL GAS
A method for selective extraction of natural gas liquids from "rich" natural gas. The method involves interacting a rich natural gas stream with Liquid Natural Gas (LNG) by mixing Liquid Natural Gas into the rich natural gas stream to lower the temperature of the rich natural gas stream to a selected hydrocarbon dew point, whereby a selected hydrocarbon liquid carried in the rich natural gas stream is condensed.
F25J 3/06 - Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification par condensation partielle
C07C 7/10 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par extraction, c.-à-d. purification ou séparation d'hydrocarbures liquides à l'aide de liquides
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
E21B 43/34 - Aménagements pour séparer les matériaux produits par le puits
A method for re-gasification of liquid natural gas involves positioning a storage vessel for liquid natural gas at a facility that has at least one refrigeration unit with circulating fluid heat transfer medium. A second step involves providing at least one heat exchanger. A heat exchange takes place during circulation through the heat exchanger between the liquid natural gas and the circulating fluid heat transfer medium which raises the temperature of the liquid natural gas changing it from a liquid phase to a gaseous phase in preparation for consumption and which lowers the temperature of the circulating fluid heat transfer medium in preparation for use in the at least one refrigeration unit.
A method of increasing the storage capacity of a natural gas storage cavern, involves the step of adding liquefied natural gas to gaseous natural gas in the natural gas storage caverns. The addition of liquefied natural gas serves to reduce the temperature and associated pressure of gaseous natural gas in the natural gas storage cavern, thereby increasing the capacity of the natural gas storage cavern.
B65G 5/00 - Emmagasinage des fluides dans des excavations ou cavités naturelles ou artificielles souterraines
F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés
F17C 5/06 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz comprimés
86.
METHOD OF CONDITIONING NATURAL GAS IN PREPARATION FOR STORAGE
A method of conditioning natural gas in preparation for storage, involves taking an existing stream of continuously flowing natural gas flowing through a gas line on its way to end users and diverting a portion of the stream of continuously flowing natural gas to a storage facility through a storage diversion line. The pressure of the natural gas is lowered, as is the temperature by the Joules-Thompson effect. The natural gas is passed in a single pass through a series of heat exchangers prior to resuming flow through the gas line at the lowered pressure. The diverted natural gas is liquefied in preparation for storage by effecting a heat exchange with the natural gas.
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