Abrégé

The method according to the invention includes, in a first reactor (20), the pyrolysis of a load of moist organic matter (OM). The pyrolysis produces both carbon elements and a pyrolysis gas flow including water vapor and volatile organic compounds (VOC). The VOC present in the pyrolysis gas flow are then subjected to oxycombustion and/or oxidation. The oxidized pyrolysis gas flow then passes through said layer (302) and produces a synthetic gas flow (FS) including hydrogen (H2) obtained by reducing water vapor (H2Og) by said carbon elements (C) at a high temperature. The temperature of the synthetic gas flow (FS) is then decreased to create a water-shift reaction where part of the residual water vapor (H2Og) is reduced by elements of carbon monoxide (CO) to produce hydrogen (H2). The resulting hydrogen (H2) is then separated.

Classes IPC  ?

• C10J 3/66 - Procédés avec décomposition des produits de la distillation en les introduisant dans la zone de gazéification
• C10J 3/84 - Moyens d'extraction des gaz avec moyens de dépoussiérage ou de dégoudronnage du gaz
• C10J 3/14 - Procédés en continu faisant usage de porteurs de chaleur gazeux

Abrégé

Formulation of oxides intended to be used as oxygen carriers in a process for treating gas streams comprising several iterations of the following steps: reduction of at least one portion of said oxides in the presence of a first gas stream (FG1); and oxidation of at least one portion of said reduced oxides in the presence of a second gas stream (FG2) comprising oxygen elements; said formulation comprising a mixture of oxides composed: of at least a first oxide, known as a reactant, having a good reactivity with said first gas stream (FG1); and of a second oxide, known as a dopant, having a substantially constant reactivity with said first gas stream (FG1); the porosity of said mixture of oxides being favoured by: addition to said mixture of oxides of at least one compound, known as an adjuvant, and said formulation being obtained by drying the reactant+dopant+adjuvant mixture, at a drying temperature around 110°C. The invention also relates to a method of obtaining the formulation and to a process for treating gas streams using a formulation according to the invention.

Classes IPC  ?

• C01B 13/14 - Méthodes de préparation des oxydes ou hydroxydes en général

Abrégé

The invention relates to a method for processing a first gaseous effluent (11) essentially containing carbon dioxide (CO2) and a second gaseous effluent (21) essentially containing stem (H2O), wherein said method comprises the following steps: generating a first gaseous flow (12) containing carbon monoxide by passing said first gaseous effluent (11) through a first oxidation-reduction layer of a reactive material (101) including high-temperature carbon elements; generating a second gaseous flow (22) essentially containing dihydrogen (H2) by passing said second gaseous flow (21) through a second oxidation-reduction layer of a reactive material (201) including high-temperature carbon elements; and the valorisation of at least one of the first and second gaseous flows (12, 22). The method can further include the synthesis of hydrocarbon molecules (HC) from the dihydrogen (H2) and the carbon monoxide (CO). The invention further relates to a system implementing the method of the invention.

Classes IPC  ?

• C01B 3/12 - 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 par réaction de la vapeur d'eau avec l'oxyde de carbone
• C01B 31/18 - Oxyde de carbone
• C10J 3/16 - Procédés en continu par réaction simultanée de l'oxygène et de l'eau sur la matière carbonée
• C10J 3/26 - Agencements ou dispositions des soupapes ou cheminées pour permettre un flux de gaz ou de vapeur autre que de bas en haut, à travers le lit de combustible de haut en bas
• C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac

Abrégé

Method of generating energy from a gas flow, called the initial flow, comprising water vapour (H2O), said method comprising the deoxidation of at least some of said water vapour (H2O) by passing said initial gas flow through a layer of material at high temperature, called the thermal base layer, essentially comprising high-temperature carbon, said deoxidation making it possible to obtain a first gas flow comprising hydrogen (H2O) obtained by the reaction of said water vapour (H2O) with said carbon elements. The initial flow may be a gas flow that has served for the treatment of a charge of wood (B1). The hydrogen (H2) obtained constitutes an energy source and may then be used to produce energy by means such as a gas boiler, a gas turbine, a fuel cell, a gas-powered engine, a turboalternator (TAV), etc.

Classes IPC  ?

• C10J 3/00 - Production de gaz contenant de l'oxyde de carbone et de l'hydrogène, p. ex. du gaz de synthèse ou du gaz de ville, à partir de matières carbonées solides par des procédés d'oxydation partielle faisant intervenir de l'oxygène ou de la vapeur
• C10J 3/10 - Procédés en continu avec chauffage interne
• C10J 3/80 - Autres caractéristiques avec des aménagements pour le préchauffage du vent ou de la vapeur d'eau

Abrégé

The invention relates to a method for roasting a plant biomass feedstock (B), comprising the following steps: generation of a treat gas stream using thermal generation means (G); generation of a layer of material at a high temperature, known as the thermal base; treatment of the biomass feedstock (B) with the treat gas stream, said treat gas stream being loaded with gas elements including water vapour and combustible pyrolysis gases originating from the biomass feedstock (B) during treatment; and recycling of at least one part of the water vapour by passing at least part of the laden gas stream through the above-mentioned thermal base. The invention also relates to a system for roasting a plant biomass feedstock (B).

Classes IPC  ?

• F23G 7/10 - Procédés ou appareils, p. ex. incinérateurs, spécialement adaptés à la combustion de déchets particuliers ou de combustibles pauvres, p. ex. des produits chimiques de détritus provenant des champs ou des jardins

Abrégé

The invention relates to a system for drying a load of wood, said system comprising: heat generating means (191) for supplying the heat for drying the load of wood (23); heat exchanging means (17) for transferring the heat produced by the heat generating means (191) to a gaseous, coolant flow for treating the load of wood (23); combustion means (191) for producing the CO2 coolant gas for treating the load of wood (23); a unit for treating (20) the load of wood (23), said unit comprising a central volume (21), known as a technical or treatment volume and used for drying the wood, and inlet (24) and outlet (25) hatches for the wood, arranged at the downstream and upstream ends of saidcentral volume (21); and thermal means for the dehydration or condensation (11) of the water vapour extracted from the wood during the drying cycle. The inventive system is energy-saving and environmentally friendly. It enables a load of wood to be dried using a biothermal procedure. The wood to be dried can be of any type, especially timber.

Classes IPC  ?

• F26B 23/02 - Chauffage utilisant un chauffage par combustion
• F26B 21/14 - Utilisation de gaz ou de vapeurs autres que l'air ou la vapeur d'eau
• F26B 21/08 - Commande, p. ex. régulation des paramètres de l'alimentation en gaz de l'humidité
• F26B 15/16 - Machines ou appareils à mouvement progressif pour le séchage d'objetsMachines ou appareils à mouvement progressif, pour le séchage de lots d'un matériau de forme compacte avec un mouvement suivant une trajectoire composée d'une ou de plusieurs lignes droites, p. ex. combinée les lignes étant toutes horizontales ou légèrement inclinées les objets ou les lots de matériau étant portés par des chariots à roues