Abstract: A gas burner for burning a gas with a low calorific value. The gas burner may be for burning a synthesis gas issuing from the gasification of biomass.

Abstract: A fixed bed gasification system to convert solid organic matter (also called biomass), into synthesis gas. This gas can be burned in an engine, turbine, oven or boiler, which makes it possible to valorize the thermal energy that it harbors.

Abstract: A system for energy storage, in particular for mechanical energy, including a system for quasi-isothermal compression of a gas via a hydraulic fluid. The mechanical energy stored is then released by quasi-isothermal expansion of the gas. The system is also configured to store electrical energy, in particular from intermittent sources such as photovoltaic or wind energy. The storage of excess electrical energy can also be considered for use during consumption peaks.

Abstract: A fixed bed gasification system to convert solid organic matter (also called biomass), into synthesis gas. This gas can be burned in an engine, turbine, oven or boiler, which makes it possible to valorize the thermal energy that it harbors.

Abstract: A system for energy storage, in particular for mechanical energy, including a system for quasi-isothermal compression of a gas via a hydraulic fluid. The mechanical energy stored is then released by quasi-isothermal expansion of the gas. The system is also configured to store electrical energy, in particular from intermittent sources such as photovoltaic or wind energy. The storage of excess electrical energy can also be considered for use during consumption peaks.

Abstract: The present invention relates to a system for producing power, notably electrical power, comprising a gas turbine (10) with at least one compressor (12; 12a, 12b) having at least one compression stage, at least one expansion turbine (16), a heat exchanger (14) between said compressor and said expansion turbine, and a hot gas source (48, 72). According to the invention, the exchanger is a rotary regenerative exchanger (14) through which the hot gases and compressed gases from said compressor pass.

Abstract: A redox mass for chemical looping combustion processes includes a redox pair or set of pairs having a material able to be alternatively oxidized and reduced between CuO and Cu, between Cu2O and Cu, between NiO and Ni, between MnO2 and Mn2O3, between Mn2O3 and Mn3O4, between Mn3O4 and MnO, between MnO and Mn, between CO3O4 and CoO or between CoO and Co, and a binder containing at least one mixed cerine-zirconia oxide (Ce/Zr) of the general formula CexZr1-xO2, where 0.05?x?0.95.

Abstract: A cogeneration method and device by turbine, particularly by gas turbine, uses a compression section, at least one expansion section, and a combustion chamber. A combustion agent including oxygen is compressed in the compression section; in the combustion chamber, one combustion step is carried out under pressure with a mixture of combustion agent compressed with a fuel; at least some of the hot gases obtained by pressurized combustion are used to effect an exchange with an external facility; and at least one postcombustion step is carried out of a mixture of hot gases coming from combustion with a fuel, prior to the exchange, and at least one other postcombustion step of a mixture of hot gases, coming from the exchange, with a fuel, in order to obtain hot gases that are sent to the expansion section.

Abstract: Process and device for regeneration of a used absorbent from a desulfurization zone or from the desulfurization of a gas containing sulfur oxides, comprising regeneration simultaneously with filtering of the absorbent, in a reducing atmosphere, wherein partial combustion of a regeneration gas is also carried out upstream from regeneration, the products of the partial combustion being mixed with the used absorbent prior to the regeneration-filtration stage. The absorbent may be, e.g., solid absorbents based on magnesium oxide. The regeneration gas may be hydrogen sulfide and/or a hydrocarbon. For example, H2S can be partially combusted and the products of the partial combustion, including H2S, H2, SO2 and sulfur, mixed with the used absorbent prior to the regeneration-filtration stage.

Abstract: The invention relates to a method for reducing the CO2 rate present in the fumes discharged by a power generator burning a mixture of an oxidizer and of a fuel containing hydrocarbons, wherein the combustion fumes are expanded, a gas mixture comprising oxidizer and the fumes is compressed, at least part of the CO2 present in a first part of the compressed mixture is removed and a second part of the compressed mixture is recycled so as to carry out combustion. The invention also relates to a device for implementing the method.

Abstract: The invention relates to an optimized method for producing a hot gas by oxidation of an active material having an oxidized form and a reduced form using a rotary reactor or a simulated-rotation reactor. According to the invention, the production cycle comprises a flow interruption between an oxidation stage and a scavenging stage.

Abstract: The invention relates to a combustion method wherein a fuel and a combustion agent with a high oxygen content are injected into a combustion chamber (20), particularly of a thermal generator (10), said combustion chamber having at least one fuel injection means (28) and at least one wall (22) essentially parallel to the axis (XX?) of said injection means. According to the invention, the method comprises: injection of a fuel from the axis (XX?) of the fuel injection means (28) to wall (22); injection, at a rate of 1 to 300 m/s, of a combustion agent at a distance from said axis, encountering the fuel in the vicinity of said wall in order to effect mixing over the entire volume of the combustion chamber before entering into reaction.

Abstract: The invention consists of an application of radiant burners to furnaces for heat treatment of hydrocarbon feedstocks in which the feedstock that is to be treated circulates inside an exchange tube bundle that receives the heat that is emitted by the burners essentially by radiation and for which a strict monitoring of the temperature profile along the exchange bundle is necessary. Applied to steam-cracking furnaces, the invention makes it possible to increase the propylene yield to iso ethylene yield. It also makes it possible to increase the compactness of the furnace and the longevity of the exchange bundle and to reduce the NOx emissions.

Abstract: The present invention relates to a device for injecting a liquid fuel into a pressurized air flow (7), in particular for a combustion chamber, comprising a hollow cylindrical body (10) of longitudinal axis (YY?) delimiting a substantially cylindrical central volume (11), fluid veins (12) substantially radial in relation to the longitudinal axis of body (10) and arranged on the periphery of said body to allow passage of said flow, and axial fuel injection pipes (5) arranged inside said fluid veins and connected to at least one fuel inlet (3) by at least one supply point (16). According to the invention, pipes (5) are pierced with openings (9) that open onto central volume (11) of said body (10) and which are oriented substantially in the direction of the flow in fluid veins (12).

Abstract: The present invention relates to a new type of redox mass that can be used in any chemical looping combustion process, said mass comprising a binder containing at least cerine-zirconia.

Abstract: The present invention relates to a cogeneration method and device by turbine, particularly by gas turbine, having a compression section (14), at least one expansion section (18, 52, 96), and a combustion chamber (20). According to the method of the invention, a combustion agent including oxygen is compressed in the compression section (14); in the combustion chamber (20), one combustion step is carried out. under pressure, of a mixture of combustion agent compressed with a fuel; at least some of the hot gases obtained by pressurized combustion are used to effect an exchange with an external facility (34, 70); and at least one postcombustion step is carried out of a mixture of hot gases, coming from the exchange, with a fuel, in order to obtain hot gases that are sent to the expansion section (18, 52, 96), under temperature and pressure conditions close to the conditions prevailing in the absence of an exchange.

Abstract: The invention relates to a device for producing a hot gas by oxidation of an active material exhibiting an oxidized form and a reduced form by means of a simulated-rotation reactor.

Abstract: Process and device for regeneration of a used absorbent from a desulfurization zone or from the desulfurization of a gas containing sulfur oxides, comprising regeneration simultaneously with filtering of the absorbent, in a reducing atmosphere, wherein partial combustion of a regeneration gas is also carried out upstream from regeneration, the products of the partial combustion being mixed with the used absorbent prior to the regeneration-filtration stage. The absorbent may be, e.g., solid absorbents based on magnesium oxide. The regeneration gas may be hydrogen sulfide and/or a hydrocarbon. For example, H2S can be partially combusted and the products of the partial combustion, including H2S, H2, SO2 and sulfur, mixed with the used absorbent prior to the regeneration-filtration stage.

Abstract: The invention relates to a method for decreasing the level of carbon dioxide present in the fumes discharged by a power generator burning a mixture of a combustive agent and of a fuel containing hydrocarbons, wherein a gaseous mixture comprising at least part of said combustive agent and at least part of said fumes is compressed, all or part of the carbon dioxide present in the compressed gaseous mixture is eliminated by absorption, a fuel is mixed with the gaseous mixture, the resulting mixture of fuel and gaseous mixture is burnt and the fumes from the combustion process are expanded. The invention also relates to a power generator for implementing said method.

Abstract: Process and device for regeneration of a used absorbent from a desulfurization zone or from the desulfurization of a gas containing sulfur oxides, comprising regeneration simultaneously with filtering of the absorbent, in a reducing atmosphere, wherein partial combustion of a regeneration gas is also carried out upstream from regeneration, the products of the partial combustion being mixed with the used absorbent prior to the regeneration-filtration stage. The absorbent may be, e.g., solid absorbents based on magnesium oxide. The regeneration gas may be hydrogen sulfide and/or a hydrocarbon. For example, H2S can be partially combusted and the products of the partial combustion, including H2S, H2, SO2 and sulfur, mixed with the used absorbent prior to the regeneration-filtration stage.