Abrégé

The present invention pertains to a quenching system and to a process for a quenching system for cooling cracked gas from a cracked gas furnace using different raw materials, which comprises a cracked gas furnace (10), a primary quench exchanger or PQE (12) and a secondary quench exchanger, which are connected in series. A transfer line exchanger or TLE for a cooling medium consisting of a gas mixture and steam or a TLE-G/G (14) is arranged and configured as a secondary quench exchanger. The TLE-G/G (14) is connected in series to the primary quench exchanger or PQE (12) via a gas transfer line (13). At the TLE-G/G (14) a feed line (15) conveying the cooling medium consisting of a gas mixture and steam is arranged at the lower part in front of the outlet header of the vertically oriented TLE-G/G. The TLE-G/G (14) is connected via a return line (16) to the cracked gas furnace (10) for returning cooling medium preheated in the TLE-G/G. The TLEG/G (14) is equipped with a pipeline (19) with cracked gas that has been cooled down to temperatures ranging from 450�C to 300�C for further processing. A compensator (39) is provided at the upper end of the TLE-G/G (14) behind the cracked gas inlet header.

Classes IPC  ?

• C10G 9/00 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures
• F28D 7/16 - 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 étant espacées parallèlement
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

A quenching system and process cool cracked gas from a cracked gas furnace using different raw materials. A cracked gas furnace, a primary quench exchanger and a secondary quench exchanger are connected in series. A transfer line exchanger for a cooling medium of a gas mixture and steam TLE-G/G is arranged and configured as a secondary quench exchanger connected in series to the primary quench exchanger via a gas transfer line. The TLE-G/G has a feed line conveying the cooling medium. The TLE-G/G is connected via a return line to the cracked gas furnace for returning cooling medium preheated in the TLE-G/G. The TLE-G/G is equipped with a pipeline outputting cracked gas that has been cooled down to temperatures ranging from 450° C. to 300° C. for further processing. A compensator is provided at the upper end of the TLE-G/G behind the cracked gas inlet header.

Classes IPC  ?

• C10G 9/00 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures
• F28D 7/16 - 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 étant espacées parallèlement
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

A cracked gas cooling heat exchanger includes a tube connection between an uncooled tube (1) and a cooled tube (2), having a cooled inner tube (3) enclosed by a jacket tube (4), with a tube intermediate space (5) for flowing cooling medium. A gas inlet header (11) has a GI tube inner part (12) and a GI tube outer part (13) and a cooling space (14) with an insulating layer (15). The GI tube outer part connects via a water chamber (6) to the jacket tube. The GI tube inner part faces the inner tube and is connected on a face (8) of the water chamber. A weld backing ring (16), between an end face (9) of the cooling space and a bottom face (8) of the water chamber, is in the insulating layer of the cooling space, arranged in a turn-out/groove (17) in the insulating layer.

Classes IPC  ?

• F28D 7/16 - 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 étant espacées parallèlement
• B23K 9/00 - Soudage ou découpage à l'arc
• B23K 9/035 - Soudage de joints continusSupportsPièces rapportées avec des supports disposés en dessous du joint
• B23K 9/173 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode consommable
• B23K 37/02 - Chariots pour supporter l'outillage pour souder ou découper
• B23K 37/04 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe pour maintenir ou mettre en position les pièces
• F28F 9/02 - Boîtes de distributionPlaques d'extrémité

Abrégé

A cracked gas cooling heat exchanger includes a tube connection between an
uncooled
tube (1) and a cooled tube (2), having a cooled inner tube (3) enclosed by a
jacket tube (4), with
a tube intermediate space (5) for flowing cooling medium. A gas inlet header
(11) has a GI tube
inner part (12) and a GI tube outer part (13) and a cooling space (14) with an
insulating layer
(15). The GI tube outer part connects via a water chamber (6) to the jacket
tube. The GI tube
inner part faces the inner tube and is connected on a face (8) of the water
chamber. A weld
backing ring (16), between an end face (9) of the cooling space and a bottom
face (8) of the
water chamber, is in the insulating layer of the cooling space, arranged in a
turn-out / groove (17)
in the insulating layer.

Classes IPC  ?

• F28D 7/10 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement
• F28F 9/02 - Boîtes de distributionPlaques d'extrémité
• F28F 9/26 - Dispositions pour raccorder des sections différentes des éléments d'échangeurs de chaleur, p. ex. de radiateur

Abrégé

A quenching system for a plant, operating a cracking furnace, works with liquid as well as gaseous starting materials. The quenching system includes a primary heat exchanger (PQE 10) and a secondary heat exchanger (SQE 11) and a tertiary heat exchanger. A TLX-D exchanger (TLX-D 26) is arranged and configured as the tertiary heat exchanger for dual operation. The TLX-D (26) is connected in series via a TLX-D gas feed line (24) to the SQE 11. The TLX-D (26) is connected to a steam drum (59), which is connected to a feed water line (49), via a TLX-D feed water drain line (34) and a TLX-D riser (46) and a TLX-D downcomer (38). The SQE 11 is connected to the steam drum (59), which is connected to the feed water line (49), via a TLX downcomer (52) and a TLX-riser (57).

Classes IPC  ?

• C10G 9/02 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures dans des cornues
• B01J 8/04 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes le fluide passant successivement à travers plusieurs lits
• C07C 4/04 - Procédés thermiques
• C10G 9/00 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures
• F28C 3/08 - Autres appareils échangeurs de chaleur à contact direct les sources de potentiel calorifique étant un liquide et un gaz ou une vapeur avec changement d'état, p. ex. absorption, évaporation, condensation
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Produits et services

Shut-off fittings made of metal for application in industrial pipe systems, especially isolating cocks, isolation slide valves, shut-off valves for chemical and petrochemical pipe systems as well as for petroleum pipelines, natural gas pipelines and product pipelines. Erection, repair and maintenance for shut-off fittings made of metal for application in industrial pipe systems.

Abrégé

A quenching system for a plant, operating a cracking furnace, works with liquid as well as gaseous starting materials. The quenching system includes a primary heat exchanger (PQE 10) and a secondary heat exchanger (SQE 11) and a tertiary heat exchanger. A TLX-D exchanger (TLX-D 26) is arranged and configured as the tertiary heat exchanger for dual operation. The TLX-D (26) is connected in series via a TLX-D gas feed line (24) to the SQE 11. The TLX-D (26) is connected to a steam drum (59), which is connected to a feed water line (49), via a TLX-D feed water drain line (34) and a TLX-D riser (46) and a TLX-D downcomer (38). The SQE 11 is connected to the steam drum (59), which is connected to the feed water line (49), via a TLX downcomer (52) and a TLX-riser (57).

Classes IPC  ?

• B01J 8/04 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes le fluide passant successivement à travers plusieurs lits
• C07C 4/04 - Procédés thermiques
• C10G 9/00 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures
• F28C 3/08 - Autres appareils échangeurs de chaleur à contact direct les sources de potentiel calorifique étant un liquide et un gaz ou une vapeur avec changement d'état, p. ex. absorption, évaporation, condensation
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

The present invention pertains to a quenching system for a plant for operating a cracking furnace with liquid as well as gaseous starting materials, which comprises a primary heat exchanger or PQE (10) and a secondary heat exchanger or SQE (11) and a tertiary heat exchanger or TQE (12) connected in series. In this case, a transfer line exchanger for dual operation or TLX-D (26) is arranged and configured as a tertiary heat exchanger. The TLX-D (26) is connected in series via a TLX-D gas feed line (24) to secondary heat exchanger or SQE (11). The TLX-D (26) is connected to a steam drum (59), which is connected to a feed water line (49), via a TLX-D feed water drain line (34) and a TLX-D riser (46) and a TLX-D downcomer (38) and the SQE (11) is connected to a steam drum (59), which is connected to a feed water line (49), via a SQE downcomer (52) and a SQE riser (57).

Classes IPC  ?

• C10G 9/18 - Appareils
• C10G 9/20 - Fours tubulaires
• F22B 1/16 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un liquide chaud ou une vapeur chaude, p. ex. un liquide résiduel, une vapeur résiduelle
• F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne

Abrégé

A heat exchanger includes a plurality of heat transfer tubes (3) and a centrally arranged bypass tube (4), which are held each between a tube plate (5) of a gas inlet chamber (7) and a tube plate (6) of a gas outlet chamber (8) that are connected to a cylindrical jacket. A coolant (11) is introduced into the jacket space (9) enclosing the tubes (3, 4). A control device (16), includes a throttle valve (18) and a drive (19), sets a gas outlet temperature range of the heat exchanger (1). A discharge rate and a discharged quantity of an uncooled process gas stream (14) from the bypass tube is controlled by the throttle valve, at an outlet end (17) of the bypass tube and is adjustable via the control device. The throttle valve is formed of a material resistant to high-temperature corrosion in a temperature range sensitive for high-temperature corrosion.

Classes IPC  ?

• F28D 7/10 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
• F02M 26/26 - Disposition, p. ex. schémas avec des refroidisseurs munis de chemins de dérivation caractérisés par les détails de la soupape de dérivation
• F28F 27/02 - Commandes ou dispositifs de sécurité spécialement adaptés pour les appareils d'échange ou de transfert de chaleur pour commander la répartition des sources de potentiel calorifique entre des canaux différents
• F28F 21/04 - Structure des appareils échangeurs de chaleur caractérisée par l'emploi de matériaux spécifiés de céramiqueStructure des appareils échangeurs de chaleur caractérisée par l'emploi de matériaux spécifiés de bétonStructure des appareils échangeurs de chaleur caractérisée par l'emploi de matériaux spécifiés de pierre naturelle
• F28D 7/16 - 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 étant espacées parallèlement
• F02M 26/32 - Échangeurs de chaleur à refroidissement par liquide
• F28F 9/02 - Boîtes de distributionPlaques d'extrémité

Abrégé

A quench-cooling system has a primary quench cooler as a double-tube heat exchanger, a tube bundle heat exchanger as a secondary quench cooler. A tube bundle is enclosed by a casing, forming a casing room, which is formed between tube sheets arranged at spaced locations. Bundle tubes are held with the tube sheets. Parallel cooling channels, connected with one another, have a rectangular tunnel geometry formed (i) from the thin tube sheet, separating a gas side from a water/steam side and connected to a ring flange, which is connected to the casing of the enclosed tube bundle; (ii) from parallel webs, arranged on the tube sheet, separating individual water/steam flows from one another; and (iii) from a covering sheet, provided with openings for bundle tubes and defining the flow in the tunnel arrangement of the cooling channels.

Classes IPC  ?

• F28G 1/12 - Grattoirs propulsés par fluide, boulets ou corps solides similaires
• F28F 9/02 - Boîtes de distributionPlaques d'extrémité
• F28F 13/00 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution
• F28F 19/00 - Prévention de la formation de dépôts ou de la corrosion, p. ex. en utilisant des filtres
• F22B 37/54 - Dispositifs d'élimination ou d'extraction des boues
• F28G 9/00 - Nettoyage par lessivage ou par lavage, p. ex. avec des solvants chimiques
• F28G 15/00 - NETTOYAGE DES SURFACES INTERNES OU EXTERNES DES CONDUITS DES ÉCHANGEURS DE CHALEUR OU DE TRANSFERT DE CHALEUR, p. ex. TUBES D'EAU DE CHAUDIÈRES Parties constitutives
• F22B 37/52 - Dispositifs de lavage
• F28D 7/16 - 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 étant espacées parallèlement
• F28F 13/08 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique en faisant varier la section transversale des canaux d'écoulement
• 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
• F28D 7/10 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

The present invention pertains to a quench-cooling system with a primary
quench cooler
(10) as a double-tube heat exchanger and with a tube bundle heat exchanger as
a
secondary quench cooler (20) with at least one tube bundle, wherein the tube
bundle is
enclosed by a casing (32), forming a casing room (36), which is formed between
two
tube sheets (28) arranged at spaced locations from one another, with bundle
tubes (29) of
the tube bundle being held between said tube sheets in the tube sheets on both
sides. The
tube sheet on the side of the gas inlet (21) or gas outlet (23) is formed with
the bundle
tubes as a membrane sheet or thin tube sheet. The thin tube sheet (28) is
provided with
parallel cooling channels (27), which are in connection with one another and a
cooling
medium flows through them. The cooling channels (27) are designed in a tunnel
arrangement and are arranged as a tube plate on the thin tube sheet (28). The
cooling
channels (27) in a tunnel arrangement have a rectangular tunnel geometry. The
cooling
channels (27) in a tunnel geometry are formed (i) from the thin tube sheet
(28), which
separates a gas side from a water/steam side and is connected to a ring flange
(35), which
is connected to the casing (32) of the enclosed tube bundle; (ii) from
parallel webs (33),
which are arranged on the tube sheet (28) and separate individual water/steam
flows
from one another; and (iii) from a covering sheet (34), which is provided with
openings
(18) for bundle tubes (29) and defines the flow in the tunnel arrangement of
the cooling
channels (27).

Classes IPC  ?

• C07C 4/04 - Procédés thermiques
• F28D 7/10 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement
• F28F 1/00 - Éléments tubulairesEnsembles d'éléments tubulaires

Abrégé

The invention relates to a porously coated, densely sintered ceramic membrane, which can be produced from a green membrane and subsequent sintering, wherein said membrane (5) is coated with ceramic material (6), which contains noble metals, which can be produced by application and subsequent thermal treatment, wherein the noble metals are contained at a concentration of 0.2 to 5 mass percent.

Classes IPC  ?

• B01D 53/22 - 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 diffusion
• B01D 71/02 - Matériaux inorganiques
• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C01B 13/02 - Préparation de l'oxygène

Abrégé

The invention relates to a module element comprising a high-temperature resistant base, said high-temperature resistant base having at least one metal or ceramic bottom that has at least one through-passage for introducing a ceramic capillary membrane, and at least one potting that is formed as a sufficiently gas-tight and high-temperature resistant connection between the metal or ceramic bottom and the at least one ceramic capillary membrane. The at least one through-opening of the at least one metal or ceramic bottom has an enlarged portion on at least one side of the metal or ceramic bottom for accommodating the sufficiently gas-tight and high-temperature resistant connection.

Classes IPC  ?

• B01D 53/22 - 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 diffusion
• B01D 63/02 - Modules à fibres creuses
• B01D 71/02 - Matériaux inorganiques
• C04B 37/00 - Liaison des articles céramiques cuits avec d'autres articles céramiques cuits ou d'autres articles, par chauffage
• C04B 37/04 - Liaison des articles céramiques cuits avec d'autres articles céramiques cuits ou d'autres articles, par chauffage avec des articles de verre
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• B29C 70/74 - Moulage de matière sur une partie relativement petite de l'objet préformé, p. ex. moulage sur une pièce rapportée
• C01B 13/02 - Préparation de l'oxygène

Abrégé

The invention relates to high-temperature resistant crystallizing solder glasses which contain 20-45 mol% of BaO, 40-60 mol% of SiO2, 0-30 mol% of ZnO, 0-10 mol% of AI2O3, 0-5 mol% of BaF2, 0-2 mol% of MgO, 0-2 mol% of CaO, 0-2 mol% of TiO2, 0-10 mol% of B2O3, as well as 0,5-4 mol% of M2O3 (M = Y, La or rare earth elements) and/or 0.5-4 mol% of ZrO2, and to the use thereof.

Classes IPC  ?

• C03C 3/068 - Compositions pour la fabrication du verre contenant de la silice avec moins de 40% en poids de silice contenant du bore contenant des terres rares
• C04B 37/02 - Liaison des articles céramiques cuits avec d'autres articles céramiques cuits ou d'autres articles, par chauffage avec des articles métalliques
• C03C 8/02 - Compositions en verre fritté, c.-à-d. broyées ou sous forme de poudre
• C03C 8/04 - Compositions en verre fritté, c.-à-d. broyées ou sous forme de poudre contenant du zinc
• C03C 8/06 - Compositions en verre fritté, c.-à-d. broyées ou sous forme de poudre contenant un halogène
• C03C 8/24 - Compositions de scellement par fusion, constituées de frittes vitreuses contenant des additifs, utilisées pour le scellement de matériaux différents, p. ex. verre et métalVerre de scellement
• C03C 10/04 - Phase cristalline de silicate ou polysilicate, p. ex. mullite, diopside, sphène, plagioclase

Abrégé

A heat exchanger for cooling reaction gas. A cooled tube receives hot reaction gas from a hot, uncooled tube. The cooled tube comprises a cooled inner tube and a tubular jacket that extends about the inner tube. A tubular connection is disposed between the uncooled and the cooled tubes, and includes a fork-shaped inlet head via which the inner tube is in communication with the uncooled tube. The inlet head is provided with an outer tubular section and an inner tubular section between which is disposed an intermediate space filled with heat-insulating material. The outer tubular section is connected to the tubular jacket. The inner tubular section is spaced slightly axially from the inner tube and is provided with an edge region that juts outwardly and is spaced slightly axially from the inner tube, this slight axial spacing being equal to or less than a maximum thermal expansion of the inlet head. A U-shaped sealing ring is disposed between facing end faces of the inner tube and the inner tubular section, and is disposed in a recess formed in the end face of the inner tubular section, the recess being disposed radially outwardly of the edge region of the inner tubular section.

Classes IPC  ?

• F28F 19/00 - Prévention de la formation de dépôts ou de la corrosion, p. ex. en utilisant des filtres
• F28F 13/00 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution
• F28D 7/10 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement
• F28F 1/00 - Éléments tubulairesEnsembles d'éléments tubulaires
• C10G 9/00 - Craquage thermique non catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures
• F16L 13/02 - Raccords soudés à l'autogène sans apport de métal
• F16L 39/00 - Raccords ou accessoires de raccordement pour tuyaux à double paroi ou à canaux multiples ou pour assemblages de tuyaux
• F28D 7/12 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement le tube extérieur étant fermé à une extrémité, c.-à-d. du type à retour

Abrégé

Heat changer apparatus for cooling reaction gas includes a tubular connection between an uncooled tube and a cooled tube that comprises a cooled inner tube (3) surrounded by a tubular jacket (4). A bifurcate in cross-section inlet head of the uncooled tube has an outer tubular section (13) connected to the tubular jacket (4) and an inner tubular section (12) slightly axially spaced from the inner tube (3). An intermediate space between the outer and inner tubular sections is filled with heat-insulating material. A preferably U-section soling ring is disposed in a recess (18) which is formed radially outwardly of an edge region (17) of the inner tubular section (12). The edge region extends from the inner diameter and has an and face which is slightly axially spaced from the inner tube (3) by a spacing equal to or less than the maximum thermal expansion of the inlet head (11).

Classes IPC  ?

• F28D 7/10 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement
• F28F 1/00 - Éléments tubulairesEnsembles d'éléments tubulaires

Abrégé

Connector between a reaction pipe and a cooling pipe and method for connecting a reaction pipe to a cooling pipe. The cooling pipe is a double pipe having an inner pipe, disposed in the extension of the reaction pipe, and an outer pipe that surrounds the inner pipe to form an intermediate cooling space between them. A supply chamber is connected to the cooling space for supplying coolant thereto. A transition piece, connected to the reaction pipe, has a fork-shaped end portion composed of an inner portion and an outer portion with heat-insulating material between them. The outer portion is secured to the base of the supply chamber coaxially relative to the longitudinal axis of the cooling pipe. The supply chamber, transition piece and half shells form a prefabricated unit. An inner tube section is welded to, and extends out of, the supply chamber and is aligned with the inner portion of the transition piece. The inner tube section has a thickness, inner diameter and outer diameter corresponding to those of the inner pipe. The thickness, inner diameter and outer diameter of the half shells correspond to those of the outer pipe. The axial length of the half shells is greater than the length of the part of the inner tube section extending out of the supply chamber.

Classes IPC  ?

• F16L 7/00 - Support de tuyaux ou de câbles à l'intérieur d'autres tuyaux ou manchons, p. ex. pour permettre la pose ou le retrait de tuyaux ou de câbles sous des routes ou des voies ferrées sans devoir interrompre la circulation

Abrégé

The invention relates to a connector for connecting between a reaction pipe (1) of a reaction furnace and a cooling pipe (2) of a reaction gas cooler, the cooling pipe (2) being embodied as a double pipe having an inner pipe (3) disposed in the extension of the reaction pipe (1), and an outer pipe (4) that surrounds the inner pipe (3) while forming an intermediate cooling space (5). The intermediate cooling space (5) is connected to a supply chamber (6) for the supply of a coolant. Furthermore, connected to the reaction pipe (1) is a transition piece (14), the end portion of which has a fork-shaped configuration and is provided with an inner portion (15) and an outer portion (16), between which is introduced a layer of heat-insulating material (17). The connector comprises a supply chamber (6) prefabricated as a unit with a transition piece (14). The prefabricated unit and half-shells (18, 19) constitute a repair unit. Welded into the supply chamber (6) is an inner tube section (13) that extends out of the supply chamber (6) and is aligned with the inner portion (15) of the transition piece (14). A method is provided for the installation of such a connector.

Classes IPC  ?

• F16L 37/56 - Accouplements du type à action rapide pour tuyaux à double-paroi ou à canaux multiples
• F16L 39/00 - Raccords ou accessoires de raccordement pour tuyaux à double paroi ou à canaux multiples ou pour assemblages de tuyaux
• F28D 7/10 - 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 étant disposées l'une dans l'autre, p. ex. concentriquement
• F28F 9/00 - CartersBoîtes de distributionSupports auxiliaires pour les élémentsÉléments auxiliaires dans les carters
• F28F 9/02 - Boîtes de distributionPlaques d'extrémité
• F28F 9/18 - Dispositions pour obturer des éléments dans les boîtes de distribution ou plaques d'extrémité par joints permanents, p. ex. par dudgeonnage par soudage

Abrégé

The invention relates to a method for regenerating the oxygen permeability of a membrane containing an oxygen anion-conducting ceramic material. According to said method, the membrane, after an operating phase, is subjected to a regeneration phase in which the temperature of the membrane is increased above the temperature selected in the operating phase so that the oxygen permeability of the membrane rises again. The method can be used during the separation of oxygen from gases or for carrying out oxidation reactions in a membrane reactor and allows operation of said devices at temperatures of less than 800°C. The reactors used in this method have at least one device which allows the membrane to be heated by direct or indirect heat exchange.

Classes IPC  ?

• B01D 71/02 - Matériaux inorganiques
• B01D 65/02 - Nettoyage ou stérilisation de membranes
• B01D 53/22 - 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 diffusion
• 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
• C01B 13/02 - Préparation de l'oxygène

Abrégé

Hollow ceramic hollow fibres or hollow fibre composites having a nonlinear shape produced by the rotation of a suitable mounting of the hollow fibres during sintering are described. The invention also relates to a membrane reactor using hollow ceramic fibres having a nonlinear shape and a process for producing hollow fibres of this type.

Classes IPC  ?

• B01D 63/02 - Modules à fibres creuses
• B01D 69/08 - Membranes à fibres creuses
• B01D 71/02 - Matériaux inorganiques
• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01D 53/22 - 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 diffusion
• B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet

Abrégé

A heat exchanger for cooling reaction gas, wherein the respective ends of heat exchanger tubes, through which the reaction gas flows, are inserted in a respective tube plate and are surrounded by a jacket, at the two ends of which are provided a respective end chamber that is partially delimited by one of the tube plates and serves for the supply and withdrawal of the reaction gas; water, as cooling agent, flows through the inner chamber of the heat exchanger that is surrounded by the jacket and that is divided by a partition, extending perpendicular to the heat exchanger tubes, which extend through it, into two partial chambers disposed one after the other in the direction of flow of the reaction gas, each partial chamber being provided with its own supply connectors and outlet connectors for the cooling agent; boiling water flows through the partial chamber that is disposed on the inlet side for reaction gas and that is connected via a supply line and withdrawal lines with a water/steam drum; feed water flows through the partial chamber that is disposed on the outlet side for the reaction gas and that is connected via a withdrawal line with the water/steam drum. The partition between the two partial chambers permits the passage of the cooling agent that flows in the inner chamber of the heat exchanger.

Classes IPC  ?

• F22F 9/22 -

Produits et services

(1) Machines, namely gas compressors, especially piston compressors and turbo compressors; turbines, especially vapour turbines and gas turbines; plants, namely plants for refrigeration, especially compressor refrigeration plants; process technological plants, namely liquid separator plants. (2) Machines, namely gas compressors, especially piston compressors and turbo compressors; plants, namely plants for refrigeration, especially compressor refrigeration plants. (3) Armatures, namely ball valves, slide valves and shut-off valves for chemical and petro-chemical pipelines and for crude oil pipelines, natural gas pipelines and other chemical product pipelines. (4) Armatures, namely ball valves, slide valves and shut-off valves for chemical and petro-chemical pipelines and for crude oil pipelines, natural gas pipelines and other chemical product pipelines. (5) Plants, namely plants for refrigeration, especially absorption refrigeration plants for liquefaction of gases; machines for operation of air-conditioning plants; steam generation plants, especially radiant-type boilers, fire tube and smoke tube boilers and waste-heat boilers; process technological plants, namely absorption plants for gases or vapors, gas conditioning plants, liquid separator plants, evaporation plants, carbon dioxide (CO2) generator plants, plants for recovery and conditioning of gases; apparatus, namely heat exchanger, especially liquid-cooled heat exchanger, gas cooled heat exchangers, scraped surface exchangers, quench-coolers, evaporators, steam condensers, absorbers and boilers; pressure vessels made of carbon steel and non-ferrous metals, namely reactors. (6) Plants, namely plants for refrigeration, especially compressor refrigeration plants, absorption refrigeration plants for liquefaction of gases, machines for operation of air-conditioning plants; process technological plants, namely absorption plants for gases or vapors; gas conditioning plants, namely membrane plants, liquid separator plants (part of the refrigeration plants), evaporation plants, carbon dioxide (CO2) generator plants, plants for recovery and conditioning of gases; steam generation plants, especially radiant-type boilers, fire-tube and smoke tube boilers and waste-heat boilers, especially for ammonia, methanol, hydrogen, nitric acid, caprolactam and formaldehyde plants and waste-heat boilers for partial oxidation or autothermal reforming and coal gasification plants and synthesis gas plants; apparatus, namely heat exchangers, especially liquid-cooled heat exchangers, gas-cooled heat exchangers, scraped surface exchangers, quench-coolers, evaporators, steam condensers, absorbers and boilers; pressure vessels made of carbon steel and non-ferrous metals, namely reactors. (1) Installation, maintenance, putting into operation (starting), apparatus, machines and armatures; inspection and professional consulting for machines, boilers and apparatus (single units as well as complete plants), all of the aforementioned services in relation to machines, namely gas compressors, especially piston compressors and turbo compressors; turbines, especially vapour turbines and gas turbines; armatures, namely ball valves, slide valves and shut-off valves for chemical and petro-chemical pipelines and for crude oil pipelines, natural gas pipelines and other chemical product pipelines; plants, namely plants for refrigeration, especially compressor refrigeration plants, absorption refrigeration plants for liquefaction of gases; machines for operation of air-conditioning plants, refrigeration devices for artificial ice skating rinks essentially cold store apparatus consisting of refrigerating machines and heat exchangers (not parts of machines); process technological plants, namely absorption plants for gases or vapors, gas conditioning plants, liquid separator plants, evaporation plants, carbon dioxide (CO2) generator plants, plants for recovery and conditioning of gases; steam generation plants, especially radiant-type boilers, fire tube and smoke tube boilers and waste-heat boilers; apparatus, namely heat exchanger, especially liquid-cooled heat exchanger, gas cooled heat exchangers, scraped surface exchangers, quench-coolers, evaporators, steam condensers, absorbers and boilers; pressure vessels made of carbon steel and non-ferrous metals, namely reactors. (2) Installation, erection, maintenance, putting into operation (starting) of plants, apparatus, machines and armatures; inspection and professional consulting (except management consulting) for machines, boilers and apparatus (single units, as well as complete plants); all of the aforementioned services in relation to armatures, namely ball valves, slide valves and shut-off valves for chemical and petro-chemical pipelines and for crude oil pipelines, natural gas pipelines and other chemical product pipelines; machines, namely gas compressors, especially piston compressors and turbo compressors; plants, namely plants for refrigeration, especially compressor refrigeration plants, absorption refrigeration plants for liquefaction of gases, machines for operation of air-conditioning plants; process technological plants, namely absorption plants for gases or vapors; gas conditioning plants, namely membrane plants, liquid separator plants (part of the refrigeration plants), evaporation plants, carbon dioxide (CO2) generator plants, plants for recovery and conditioning of gases; steam generation plants, especially radiant-type boilers, fire-tube and smoke tube boilers and waste-heat boilers, especially for ammonia, methanol, hydrogen, nitric acid, caprolactam and formaldehyde plants and waste-heat boilers for partial oxidation or autothermal reforming and coal gasification plants and synthesis gas plants; apparatus, namely heat exchangers, especially liquid-cooled heat exchangers, gas-cooled heat exchangers, scraped surface exchangers, quench-coolers, evaporators, steam condensers, absorbers and boilers; pressure vessels made of carbon steel and non-ferrous metals, namely reactors. (3) Planning into operation (starting), apparatus, machines and armatures; design for machines, boilers and apparatus (single units as well as complete plants), all of the aforementioned services in relation to machines, namely gas compressors, especially piston compressors and turbo compressors; turbines, especially vapour turbines and gas turbines; armatures, namely ball valves, slide valves and shut-off valves for chemical and petro-chemical pipelines and for crude oil pipelines, natural gas pipelines and other chemical product pipelines; plants, namely plants for refrigeration, especially compressor refrigeration plants, absorption refrigeration plants for liquefaction of gases; machines for operation of air-conditioning plants, refrigeration devices for artificial ice skating rinks essentially cold store apparatus consisting of refrigerating machines and heat exchangers (not parts of machines); process technological plants, namely absorption plants for gases or vapors, gas conditioning plants, liquid separator plants, evaporation plants, carbon dioxide (CO2) generator plants, plants for recovery and conditioning of gases; steam generation plants, especially radiant-type boilers, fire tube and smoke tube boilers and waste-heat boilers; apparatus, namely heat exchanger, especially liquid-cooled heat exchanger, gas cooled heat exchangers, scraped surface exchangers, quench-coolers, evaporators, steam condensers, absorbers and boilers; pressure vessels made of carbon steel and non-ferrous metals, namely reactors. (4) Design for machines, boilers and apparatus (single units, as well as complete plants); architectural planning of plants; all of the aforementioned services in relation to armatures, namely ball valves, slide valves and shut-off valves for chemical and petro-chemical pipelines and for crude oil pipelines, natural gas pipelines and other chemical product pipelines; machines, namely gas compressors, especially piston compressors and turbo compressors; plants, namely plants for refrigeration, especially compressor refrigeration plants, absorption refrigeration plants for liquefaction of gases, machines for operation of air-conditioning plants; process technological plants, namely absorption plants for gases or vapors; gas conditioning plants, namely membrane plants, liquid separator plants (part of the refrigeration plants), evaporation plants, carbon dioxide (CO2) generator plants, plants for recovery and conditioning of gases; steam generation plants, especially radiant-type boilers, fire-tube and smoke tube boilers and waste-heat boilers, especially for ammonia, methanol, hydrogen, nitric acid, caprolactam and formaldehyde plants and waste-heat boilers for partial oxidation or autothermal reforming and coal gasification plants and synthesis gas plants; apparatus, namely heat exchangers, especially liquid-cooled heat exchangers, gas-cooled heat exchangers, scraped surface exchangers, quench-coolers, evaporators, steam condensers, absorbers and boilers; pressure vessels made of carbon steel and non-ferrous metals, namely reactors.

Produits et services

Armatures, namely ball valves, slide valves and shut-off valves for chemical and petro-chemical pipelines and for crude oil pipelines, natural gas pipelines and other chemical product pipelines; machines, namely gas compressors, especially piston compressors and turbo compressors. Plants, namely plants for refrigeration, especially compressor refrigeration plants, absorption refrigeration plants for liquefaction of gases, machines for operation of air-conditioning plants; process technological plants, namely absorption plants for gases or vapors; gas conditioning plants, namely membrane plants, liquid separator plants (part of the refrigeration plants), evaporation plants, carbon dioxide (CO2) generator plants, plants for recovery and conditioning of gases; steam generation plants, especially radiant-type boilers, fire-tube and smoke tube boilers and waste-heat boilers, especially for ammonia, methanol, hydrogen, nitric acid, caprolactam and formaldehyde plants and waste-heat boilers for partial oxidation or autothermal reforming and coal gasification plants and synthesis gas plants; apparatus, namely heat exchangers, especially liquid-cooled heat exchangers, gas-cooled heat exchangers, scraped surface exchangers, quench-coolers, evaporators, steam condensers, absorbers and boilers; pressure vessels made of carbon steel and non-ferrous metals, namely reactors. Installation, erection, maintenance, putting into operation (starting) of such plants, apparatus, machines and armatures. Design, inspection and professional consulting (except management consulting) for machines, boilers and apparatus (single units, as well as complete plants); architectural planning of plants.