Abstract: A fuel cell comprising a stack of a plurality of cells sandwiched between a first clamping plate and a second clamping plate, the plurality having a first cell at a first end and a last cell at a second end, the stack having a distributor plate and an interface plate interposed between the first clamping plate and the distributor plate, the interface plate having an outer face facing the first clamping plate and an inner face, the interface plate comprising a first dispensing opening, a first section of which opens onto the outer face and a second section of which opens onto the inner face, the first section and the second section having distinct shapes.

Abstract: A framed, low-temperature refrigeration device is provided, which includes a working circuit that forms a loop and contains a working fluid, the working circuit forming a cycle that includes in series: a compression mechanism, a cooling mechanism, an expansion mechanism and a heating mechanism, wherein the mechanisms for cooling and heating the working fluid include a common heat exchanger in which the working fluid flows in opposite directions in two separate transit portions of the working circuit.

Abstract: A method for liquefying a hydrocarbon stream using at least one heat exchanger of the plate and fin type having at least one first part and one second part, the first and second parts being physically separate and each comprising at least one stack of a plurality of plates that are parallel to one another and to a longitudinal direction that is substantially vertical, the plates of the first part and the plates of the second part being stacked in a stacking direction that is orthogonal to the plates, the plates being stacked with spacing so as to define between them a plurality of first passages for the flow of at least part of a second two-phase cooling stream in the first part and a plurality of second passages for the flow of at least part of a first two-phase cooling stream in the second part.

Abstract: The invention relates to a valve for pressurized fluid, the valve having a body incorporating a fluid circuit having an upstream end and a downstream end, the circuit having a seal valve, the seal valve enabling the circuit to be opened or closed, the valve having a member for controlling the seal valve, the seal valve being slidably mounted in the body so as to slide between a position in which the circuit is closed when the control member is in a rest position and a position in which the circuit is open when the control member is in an active position, the valve having a deformable member positioned between the seal valve and the control member. The invention also relates to a container or a set of containers for pressurized fluid comprising such a valve.

Abstract: Disclosed is a packing made up of a stack of plates, having been shaped to form corrugations in the plate and assembled to form a cross-corrugated packing block for a mass and/or heat transfer application, wherein the material of the packing plates is an open-pore metal foam, and in that the specific surface area of the packing is greater than 500 m2/m3 and in that the thickness (e) of the plate is less than 2 mm before the shaping operation.

Abstract: The invention relates to a method and installation for transferring cryogenic fluid using a cryogenic-fluid transfer device comprising a first cryogenic-fluid distribution tank, said distribution tank storing a cryogenic fluid with a lower liquid phase and an upper gas phase, a second cryogenic receiving tank accommodating a cryogenic fluid comprising a lower liquid phase and an upper gas phase, a fluid transfer circuit connecting the first and the second tank, the transfer circuit comprising a first pipe connecting the upper parts of the first and second tanks and comprising at least one compressor configured to draw gas to be compressed from the receiving tank and to deliver the compressed gas into the distribution tank, the transfer circuit comprising a second pipe connecting the lower part of the distribution tank to the upper part of the receiving tank, the method comprising a step of pressurizing the distribution tank using the compressor via the first pipe and a step of transferring liquid from the dis

Abstract: A facility for recovering carbon dioxide from a feed gas flow, including a unit for treating the feed gas flow in order to produce, from feed gas flow, a carbon dioxide-rich gas flow and a nitrogen-rich gas flow, a compression stage for compressing the feed gas flow, an expansion stage capable of outputting mechanical energy generated by the expansion of the nitrogen-rich gas flow, a thermal device arranged to enable heat transfers to take place between the gas flow leaving the compression stage and the nitrogen-rich gas flow prior to expansion, and a device for utilising the mechanical energy output by the expansion stage.

Abstract: A powder storage device includes an enclosure configured to contain a powder and an atmosphere, the device having at least one sensitive element arranged inside the enclosure, such that at least one optical property of the sensitive element depends on the atmosphere inside the enclosure, the device having observation means including at least one observation part, which is at least partially transparent, the observation means making it possible to observe the optical property of the sensitive element from outside of the enclosure.

Abstract: The invention relates to a dilution refrigeration device for obtaining very low temperatures, in particular in the range comprised between one millikelvin and one hundred millikelvins, comprising a looped working circuit containing a cycle fluid comprising a mixture of helium isotope 3 and helium isotope 4, the working circuit comprising a first set of pipes that includes, between a mixing chamber and a boiler, a first portion having a plurality of first pipe branches arranged in parallel, subdividing a cycle flow into a plurality of parallel flows, and in that a second set of pipes comprises, between the boiler and the mixing chamber, a second portion of a plurality of second pipe branches arranged in parallel, subdividing the cycle flow into a plurality of parallel flows, and in that the first heat exchange section comprises a plurality of counterflow heat exchangers each providing heat exchange between a first pipe branch of the first portion and a second pipe branch of the second portion.

Abstract: A method of improving an endothermic process in a furnace utilizing steps a) calibrating the simplified physical model of step c3) by measuring one or more tube temperature for at least a tube impacted by the throttling of a burner in standard and in throttled state, b) acquiring information on a tube temperature for the tubes present in the furnace with all the burners present in the furnace under standard non-throttled conditions, c) getting a map of burners to throttle including c1) choosing at least one parameter representative of the performances of the furnace with a target of improvement, c2) choosing at least one or more power ratio for the burner throttling, c3) utilizing the information of step b) and a simplified physical model of the impact of throttling a burner on the tube temperature, c4) getting a map of burners to throttle, step d) throttling the burners.

Abstract: Disclosed is a self-closing emergency coupling and detachment device for transporting cryogenic fluid, including two fluid transport pipes that extend in a longitudinal direction and each comprise, at a connection end, a valve mechanism configured to automatically close the pipe when the connection ends are separated and allow the pipe to be opened when the connection ends are coupled together, the device also including an outer tube that is arranged around each transport pipe and delimits a vacuum space for thermally insulating the transport pipe, the device being configured to delimit a defined sealed dead volume between the coupled connection ends, wherein the device comprises a system for draining the dead volume, the draining system being provided with a fluid circuit that is fluidically connected to the dead volume.

Abstract: The apparatus of the present invention serves to stun animals prior to slaughter, these being introduced with a gondola into a pit. On a sidewall of the pit is/are designed a gas module, preferably a plurality of gas modules. Each gas module comprises a gas introduction line having a multitude of pores through which an anaesthetic gas can flow laterally into the pit. The multitude of pores ensures a laminar inflow of the anaesthetic gas. The lateral laminar inflow of the anaesthetic gas avoids an increase in the stress of the animals being stunned, thus enabling humane stunning prior to slaughter. At the same time, the modular construction by means of the gas modules facilitates simple dimensioning of the gas introduction capacities required and also the construction and retrofitting of corresponding apparatuses.

Abstract: The invention relates to a receptacle for receiving a cryogenic coupling for filling between two uses, the receptacle comprising a tubular sleeve which has an inlet and a bottom and delimits a tubular housing configured to accommodate a coupling of cylindrical overall shape, characterized in that the tubular sleeve is thermally insulated, and in that the bottom is situated above the inlet thereof in a use configuration such that the terminal end of the coupling is held there oriented upwards in a position stowed in the receptacle.

Abstract: Adsorbent agglomerate having an inner region and a superposition of layers of adsorbent particles, the layers of adsorbent particles succeeding each other starting from the inner region, enveloping the inner region, each of the adsorbent particles having a volume termed particle volume, at least two layers of adsorbent particles constituting mutually hierarchical layers, the at least two layers being the layers of adsorbent particles furthest from the inner region, in which adsorbent agglomerate the adsorbent particles constituting each of the hierarchical layers preceding a following hierarchical layer succeeding it have an average particle volume less than the average particle volume of the adsorbent particles constituting the following hierarchical layer, a standard deviation of the particle volume values of the adsorbent particles of each of the hierarchical layers being less than 20%, preferably less than 5% relative to the average particle volume of the adsorbent particles constituting the hierarchical

Abstract: A gravity liquid distributor a having a lower plate provided with orifices via which a liquid leaves the distributor in order to irrigate a lower element. Parallel parallelepipedal chimneys dedicated to the passage of the ascending gas. The chimneys are distributed over an entire central portion with a circular cross section of the lower plate, which frees up a peripheral channel, which is fluidically connected to the troughs, over the perimeter of the lower plate. A plurality of hats that are able to guide the liquid collected above the troughs towards the peripheral channel, each hat having an elongate rectangular form with two ends, with just one hat per trough, the hat being closed off at just one end such that at least the majority of the liquid collected flows towards the peripheral channel. The hats are oriented at an acute or zero angle with respect to the horizontal.

Abstract: A process for treating a flue gas produced in at least one upstream unit operating at a nominal operating pressure, the flue gas containing from 5 mol % to 90 mol % of CO2 on a wet basis and being at a pressure between 0.5 and 2 bar absolute. The process includes treating, via at least one downstream treatment unit, all or virtually all of the stream of flue gas originating from the upstream unit or upstream units, thereby producing, from the flue gas, a gaseous or liquid stream rich in CO2 which contains more than 50 mol % of CO2. Then enabling the stream of flue gas to communicate, between the upstream unit and the downstream unit with a stack opening to the atmosphere, and this outlet line is left open or partially open in nominal operation thereby equilibrating the pressure in the stream of flue gas to atmospheric pressure.

Abstract: A container for pressurized fluid, in particular a gas cylinder, having a given internal volume, having a fluid distribution valve having a member for selecting the flow rate, which can be manipulated by a user, a position sensor configured to detect the position of the member for adjusting flow rate, and an electronic device having a means for measuring pressure and temperature, a microprocessor-based data processing means that are configured to calculate a remaining fluid on the basis of pressure and temperature measurements, of the position of the member for selecting the flow rate and of the internal volume of the container, a timer, and display means for displaying an updated remaining fluid.

Abstract: A method for generating hydrogen is provided. In certain embodiments, the method can include the steps of: introducing a hydrocarbon feed stream, at a first temperature, into a first reaction zone under conditions effective for producing a first process stream, wherein the first process stream is at a second temperature that is greater than the first temperature; introducing a second feed stream into a second reaction zone under conditions effective for producing a hydrogen product stream, wherein heat needed for producing the hydrogen product stream from the second feed stream is at least partially provided by heat exchange with the first process stream; and withdrawing the hydrogen product stream from the second reaction zone.

Abstract: A nitrogen generating method for producing product nitrogen using a nitrogen generating device comprising a main heat exchanger for cooling feed air, a nitrogen rectification column into which the feed air cooled in the main heat exchanger is introduced, and a nitrogen condenser which condenses a vapour stream fed from the nitrogen rectification column and circulates the same to the nitrogen rectification column, the method including a control step for discharging liquid nitrogen condensed by the nitrogen condenser and stored in a liquid nitrogen buffer, which is provided in an upper gas phase portion of the nitrogen rectification column or separately from the nitrogen rectification column, to a rectification portion of the nitrogen rectification column in response to an increase in an amount of product nitrogen or an increase in a flow rate of the feed air.