Abstract: The invention relates to a sorptive gas storage device (1) comprising: a sorptive gas storage structure (10) comprising a sorptive gas storage material, said storage structure (10) having a circumferential edge (B), —heating means (3) configured to heat the storage material, and facilitate the desorption of the gas, said heating means (3) comprising: •a first heating part (30) arranged in the storage structure (10), at a distance from the circumferential edge (B), •a second heating part (32) arranged in the storage structure (10), at a distance from the circumferential edge (B) on the one hand and from the first heating part (30) on the other hand, the first heating part (30) and the second heating part (32) defining between them a space whereinto a first portion (11) of the storage structure (10) extends.

Abstract: The invention relates to a sorption-based gas storage structure (10) comprising: —a first layer (100) comprising a sorption-based storage material, —a second layer (200) comprising: º a first portion (201, 203) of the second layer, in contact with the first layer (100), and º a second portion (202) of the second layer.

Abstract: A device for injecting a mixing gas into an exhaust gas exhaust line of an engine, the device comprising: one or more inlet openings, a plurality of walls comprising: o a first wall (31) and; o a second wall (32) having one or more outlet openings and being arranged downstream of the first wall, and means (36) for injecting the mixing gas between the first wall and the second wall, so as to allow the mixing gas and the exhaust gases to be mixed between the first wall and the second wall.

Abstract: Unit for storing gas by absorption or adsorption, comprising a chamber containing a storage element (702, 704) that stores gas by absorption or adsorption, characterized in that it further comprises a compressible element (712) also provided within the chamber and kept in contact with the storage element (702, 704) and designed to deform under the action of loads applied by the storage element (702, 704) upon variations in volume of the storage element (702, 704) during phases of storing gas and releasing gas from storage, so as to limit the loads applied to the chamber.

Abstract: The disclosure relates to an ammonia storage structure in particular for the selective catalytic reduction of nitrogen oxides in the exhaust gases of combustion vehicles, where the structure includes at least one element for storing a gas such as ammonia, in the form of a porous matrix, with which an irrigating device the storage element are associated. The disclosure also relates to an ammonia storage and removal system of a vehicle that includes a storage chamber receiving such a storage structure, a selective catalytic reduction system for internal combustion engine exhaust gases, including such an ammonia storage system and to a module for feeding ammonia into the exhaust gases, and, finally, to a monolithic porous matrix for storing a gas, where the matrix contains the irrigation device in the interior thereof, in order to promote the sorption/desorption of the gas in the matrix.

Abstract: Method for gauging the autonomy of a system for storing and delivering gaseous ammonia to a consumer unit (3), the system comprising: a gaseous-ammonia storage cell (8) comprising a dedicated heating means (9), and at least one sensor (61, 64) of at least one parameter of the system, the method comprising steps consisting in: controlling the system on the basis of an intrusive reference datum independent of an ammonia demand from the consumer unit (3), during the control step, taking an intrusive measurement of at least one parameter of the system using the sensor (61, 64), and comparing the intrusive measurement against a threshold value of at least one parameter under the control conditions in order to estimate the autonomy of the system with respect to a filling threshold of the cell (8) that corresponds to the threshold value of the parameter.

Abstract: The disclosure relates to an ammonia storage structure in particular for the selective catalytic reduction of nitrogen oxides in the exhaust gases of combustion vehicles, including at least one storage material in which the ammonia can be stored, where the structure includes at least two different storage portions, each storage portion containing a storage material, and not all the storage materials of the different storage portions being identical. The disclosure also relates to an ammonia storage and removal system of a vehicle that includes a storage chamber, including such a storage structure. A selective catalytic reduction system for internal combustion engine exhaust gases, includes such an ammonia storage system and to a module for feeding ammonia into the exhaust gases.

Abstract: Ammonia storage structure, characterized in that it comprises an alternation:—of at least one ammonia storage layer, and—of at least one layer of a thermally conductive material of a thermal conductivity higher than that of the storage layer, the at least one layer of thermally conductive material being intended to increase heat transfers within the structure.

Abstract: A system for storing and delivering gaseous ammonia to a consumer unit (30) including: a plurality of gaseous ammonia storage cells (10) each including: a storage material (102) that is a gaseous ammonia absorber, a pressure adjuster for adjusting an internal pressure of each cell independently of the other cells of the plurality, including a heater (106), an outlet interface (40) connecting the plurality of cells (10) to the consumer unit (30) allowing gaseous ammonia to leave the cell (10) when the internal pressure is higher than a pressure downstream, a control device (50) common to the plurality of cells (10) allowing control, independently of the other cells of the plurality, of the activity of each cell (10) in delivering ammonia to the outlet interface (40) using a controller (502) which controls the heater (106) for the pressure adjuster (10).

Abstract: A construction module of a structure is provided for ammonia storage, the structure including at least one layer of salt suitable for an adsorbing or absorbing ammonia, the module including an attachment for attaching the module to at least one other module. The disclosure also relates to a storage of gases in solids.

Abstract: The disclosure relates to an ammonia storage structure in particular for the selective catalytic reduction of nitrogen oxides in the exhaust gases of combustion vehicles, where the structure includes at least one element for storing a gas such as ammonia, in the form of a porous matrix, with which an irrigating device the storage element are associated. The disclosure also relates to an ammonia storage and removal system of a vehicle that includes a storage chamber receiving such a storage structure, a selective catalytic reduction system for internal combustion engine exhaust gases, including such an ammonia storage system and to a module for feeding ammonia into the exhaust gases, and, finally, to a monolithic porous matrix for storing a gas, where the matrix contains the irrigation device in the interior thereof, in order to promote the sorption/desorption of the gas in the matrix.

Abstract: The disclosure relates to an ammonia storage structure in particular for the selective catalytic reduction of nitrogen oxides in the exhaust gases of combustion vehicles, including at least one storage material in which the ammonia can be stored, where the structure includes at least two different storage portions, each storage portion containing a storage material, each storage portion being associated with a corresponding heating element, such that the two storage portions can be heated differently with a view to releasing the ammonia thereof differently. The disclosure also relates to an ammonia storage and removal system of a vehicle that includes a storage chamber, including such a storage structure. A selective catalytic reduction system for internal combustion engine exhaust gases, includes such an ammonia storage system and to a module for feeding ammonia into the exhaust gases.

Abstract: The disclosure relates to an ammonia storage structure in particular for the selective catalytic reduction of nitrogen oxides in the exhaust gases of combustion vehicles, including at least one storage material in which the ammonia can be stored, where the structure includes at least two different storage portions, each storage portion containing a storage material, and not all the storage materials of the different storage portions being identical. The disclosure also relates to an ammonia storage and removal system of a vehicle that includes a storage chamber, including such a storage structure. A selective catalytic reduction system for internal combustion engine exhaust gases, includes such an ammonia storage system and to a module for feeding ammonia into the exhaust gases.

Abstract: Method for gauging the autonomy of a system for storing and delivering gaseous ammonia to a consumer unit (3), the system comprising: a gaseous-ammonia storage cell (8) comprising a dedicated heating means (9), and at least one sensor (61, 64) of at least one parameter of the system, the method comprising steps consisting in: controlling the system on the basis of an intrusive reference datum independent of an ammonia demand from the consumer unit (3), during the control step, taking an intrusive measurement of at least one parameter of the system using the sensor (61, 64), and comparing the intrusive measurement against a threshold value of at least one parameter under the control conditions in order to estimate the autonomy of the system with respect to a filling threshold of the cell (8) that corresponds to the threshold value of the parameter.

Abstract: Unit for storing gas by absorption or adsorption, comprising a chamber containing a storage element (702, 704) that stores gas by absorption or adsorption, characterized in that it further comprises a compressible element (712) also provided within the chamber and kept in contact with the storage element (702, 704) and designed to deform under the action of loads applied by the storage element (702, 704) upon variations in volume of the storage element (702, 704) during phases of storing gas and releasing gas from storage, so as to limit the loads applied to the chamber.

Abstract: Ammonia storage structure, characterized in that it comprises an alternation: —of at least one ammonia storage layer, and —of at least one layer of a thermally conductive material of a thermal conductivity higher than that of the storage layer, the at least one layer of thermally conductive material being intended to increase heat transfers within the structure.

Abstract: A system for storing and delivering gaseous ammonia to a consumer unit (30) includes: a plurality of gaseous ammonia storage cells (10) each including: a storage material (102) that is a gaseous ammonia absorber, a means for adjusting an internal pressure of each cell independently of the other cells of the plurality, including a heating means (106), an outlet interface (40) connecting the plurality of cells (10) to the consumer unit (30) allowing gaseous ammonia to leave the cell (10) when the internal pressure is higher than a pressure downstream, a control device (50) common to the plurality of cells (10) allowing control, independently of the other cells of the plurality, of the activity of each cell (10) in delivering ammonia to the outlet interface (40) using means for controlling (502)the means (106) of adjusting the internal pressure of the plurality of cells (10).

Abstract: System to reduce the amount of NOx in exhaust gases of a vehicle. The system includes a storage space 1 containing an agent, a SCR catalytic converter 5, an injection module 6c to inject the agent upstream of the converter, a heat exchanger 2 containing a porous matrix, a shutter or injector 11 to control the flow rate of the agent to the exchanger, a valve 12 between the storage space and exchanger, to transfer thermal energy to gases during the starting period. The shutter or injector controls the flow of agent into the exchanger during the starting period to raise its temperature, and is closed when gases have reached a certain temperature. The valve regulates exchanger pressure during a period at operating temperature and conveys the agent to storage space when the exchanger pressure is higher than storage space pressure.

Abstract: The invention relates to a system intended to reduce the amount of NOx in the exhaust gases of a motor vehicle. The system comprises a storage space (1) containing a reducing agent; an SCR (selective catalytic reduction) catalytic converter (5) for treating the exhaust gases laden with reducing agent, and an injection module (6c) designed to inject the reducing agent from the storage space (1) into the exhaust gases of the motor vehicle upstream of the SCR catalytic converter (5). The system further comprises: at least one heat exchanger (2) connected to the storage space (1) and containing a porous matrix intended to absorb the reducing agent originating from the storage space (1); a valve or an injector (11) downstream of the storage space (1) and upstream of the exchanger (2) and designed to control the addition of reducing agent to the exchanger (2), and a valve (12) positioned between the storage space (1) and the exchanger (2).

Abstract: A method is intended for desulfation of a nitric oxide trap (22) and regeneration of a particle filter (24) arranged in an exhaust line (20) for treating exhaust gas from an internal-combustion engine (10), notably a Diesel engine. The saturation rate of the trap and the clogging rate of the filter are evaluated and, as soon as one of the rates reaches a threshold value, the fuel/air ratio of the exhaust gas is increased without it reaching a fuel/air ratio of 1, then desulfation of trap (22) is performed in association with regeneration of particle filter (24).