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.
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.
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.
C01B 3/12 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
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.
C10J 3/00 - Production of gases containing carbon monoxide and hydrogen, e.g. synthesis gas or town gas, from solid carbonaceous materials by partial oxidation processes involving oxygen or steam
C10J 3/10 - Continuous processes using external heating
C10J 3/80 - Other features with arrangements for preheating the blast or the water vapour
5.
METHOD AND SYSTEM FOR ROASTING A BIOMASS FEEDSTOCK
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).
F23G 7/10 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of field or garden waste
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.
F26B 23/02 - Heating arrangements using combustion heating
F26B 21/14 - Arrangements for supplying or controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam
F26B 15/16 - Machines or apparatus for drying objects with progressive movementMachines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound the lines being all horizontal or slightly inclined the objects or batches of materials being carried by wheeled trucks
patents