Abstract: An apparatus for separation of air by cryogenic distillation comprising: a system of columns; a first turbine; a warm compressor coupled to the first turbine; a second turbine; a cold compressor coupled to the second turbine; a heat exchanger; means for sending air cooled in the heat exchanger at an intermediate temperature of the heat exchanger to the cold compressor; means for sending expanded air from the second turbine to the system of columns; means for sending air compressed in the cold compressor to an intermediate point of the heat exchanger and then at least in part to the system of columns via a first valve; means for sending air compressed in the cold compressor to the inlet of the first turbine via a second valve without passing through the heat exchanger, wherein the means for sending air compressed in the cold compressor to the inlet of the first turbine via the second valve without passing through the heat exchanger is also connected to the inlet of the first turbine; means for sending a fracti

Abstract: A method for stunning animals and a respective stunning system is disclosed. Animals are lowered in a cradle into a pit filled with anoxic stunning gas. The cradle is provided with a heat sink, preferably comprising solid carbon dioxide, for cooling the stunning gas in the pit resulting in a density increase of the stunning gas in the pit. This reduces demixing of the stunning gas and rising of components such as nitrogen (N2) usually having a lower density than the air surrounding the stunning system.

Abstract: The invention relates to a fluid-compression device including a compression chamber comprising a movable piston, the device comprising a first end housing a first end of the compression chamber, the device comprising a second end housing a second end of the compression chamber, the piston being translatable between the first and second ends of the compression chamber, the device comprising a regeneration pipe connecting the first and second ends of the compression chamber and including a regenerator, the device comprising a supply pipe comprising an upstream end intended to be connected to a source of fluid to be compressed and a downstream end opening into the first end of the compression chamber, the supply pipe comprising a valve assembly, the device comprising a pipe for discharging the compressed fluid comprising an upstream end connected to the compression chamber and a downstream end intended to be connected to a receiver of the compressed fluid, the discharge pipe comprising a valve assembly, characte

Abstract: The present invention relates to a method for improving stability of a hydrogen gaseous dispensing system. An example of such system is hydrogen powered vehicle fuel filling station. Vehicle is filled by multiple high pressure gaseous hydrogen tubes, usually one tube at a time. For safety and reliability reasons a control requirement for such system is to be able to deliver the hydrogen at constant rate to the fuel tank so that its rate of pressure increase stays constant during entire filling process. A dual pressure regulator arrangement is proposed to better maintain flow continuity and/or pressure during tube switching.

Abstract: A method for delivering a liquid cryogen from a liquid cryogen source to a storage tank can include the steps of: providing a bayonet system having an in-line pump disposed therein, the bayonet system having an upstream end and a downstream end; attaching the bayonet system to an upstream conduit, wherein the upstream conduit is in fluid communication with a liquid cryogen source, attaching the bayonet system to a downstream conduit, wherein the downstream conduit is in fluid communication with the storage tank; purging and cooling the upstream conduit and the downstream conduit; and flowing the liquid cryogen from the liquid cryogen source to the storage tank.

Abstract: A process for the deposition of a coating on at least a part of a metallic substrate, a) mixing a liquid and a powder having particles of a metallic material to be deposited and particles of a pickling agent, so as to prepare a suspension, b) application of the suspension prepared in step a) to at least a part of the surfaces of the metallic substrate, so as to obtain a substrate-suspension assembly, c) carrying out a heat treatment of the assembly which includes heating at a first temperature of at least 500° C. and heating at a second temperature greater than the first temperature, and d) recovery of a substrate coated, at least in part, with a coating, the pickling agent being a halogenated compound and the suspension having from 10% to 60% of the pickling agent, with respect to the total weight of the powder.

Abstract: A cryogen storage vessel at an installation is filled with liquid cryogen from a liquid cryogen storage tank that has a pressure lower than that of the vessel. After headspaces of the vessel and tank are placed in fluid communication with another via a gas transfer vessel and are pressure-balanced, a pump in a liquid transfer line connected between the tank and the vessel is operated to transfer amounts of liquid cryogen from the tank to the vessel via the liquid transfer line and pump as amounts of gaseous cryogen are transferred, through displacement by the pumped cryogenic liquid, from the vessel to the tank.

Abstract: Disclosed are Group 6 transition metal-containing thin film forming precursors to deposit Group 6 transition metal-containing films on one or more substrates via vapor deposition processes.

Abstract: Method for delivering liquefied gas, especially hydrogen, by means of at least one mobile storage facility, especially a storage facility transported by lorry, comprising a step of filling the mobile storage facility with liquefied gas at a source plant, the mobile storage facility containing, after filling, liquefied gas and a fraction of the vaporized gas, the method comprising a movement of the mobile storage facility from the source plant to a receiving station and a transfer of liquefied gas from the mobile storage facility to the receiving station, characterized in that it comprises a step of interim cooling of the liquefied gas contained in the mobile storage facility between the source plant and the receiving station by means of a cooling device comprising a liquefied gas tank and a refrigerating element.

Abstract: A heat exchanger having multiple plates which are mutually parallel and parallel to a longitudinal direction, the exchanger having a length measured in the longitudinal direction, the plates being stacked with spacing so as to define a first series of passages for the flow, in a general flow direction parallel to the longitudinal direction, of at least a first refrigerant fluid and a second refrigerant fluid, at least one passage of the first series being defined between two adjacent plates.

Abstract: A tank for storing liquefied gas, having a shell delimiting a storage volume extending in a main direction which is horizontal in the use configuration of the tank, the tank comprising multiple deflecting walls in the storage volume which extend in an offset manner in the main direction configured to force the fluid to perform at least one back-and-forth movement in the main direction as the fluid passes between the lower end and the upper end of the storage volume, wherein a plurality of these deflecting walls are located in the lower half of the storage volume.

Abstract: A device for filling pressurized gas tanks, including a fluid transfer circuit having an upstream end connected to a plurality of sources of pressurized fluid and a downstream end having at least one dispenser intended to be connected to a tank to be filled, the sources being connected in parallel, each source has a fluid outlet connected to a respective outlet valve, the transfer lines being connected in parallel to the at least one dispenser and each having a respective transfer valve, the transfer lines and the transfer valves being dimensioned so as to transfer a maximum transfer gas flow which is smaller than the maximum filling gas flow, the sum of a plurality of maximum transfer gas flows provided by a plurality of outlet valves and a plurality of transfer lines being greater than or equal to the maximum filling gas flow.

Abstract: A cryogen storage vessel at an installation is filled with liquid cryogen from a liquid cryogen storage tank that has a pressure lower than that of the vessel. After headspaces of the vessel and tank are placed in fluid communication with another via a gas transfer vessel and are pressure-balanced, a pump in a liquid transfer line connected between the tank and the vessel is operated to transfer amounts of liquid cryogen from the tank to the vessel via the liquid transfer line and pump as amounts of gaseous cryogen are transferred, through displacement by the pumped cryogenic liquid, from the vessel to the tank. Following filling, the tank is disconnected and then driven to another location to repeat the filling process with a second vessel that is at a different location.

Abstract: A system and method for supplying a backup product in an air separation device, as well as a system and method for supplying a lower-pressure product to a user by means of pressurization of a cryogenic liquid pump during normal operation of an air separation device, i.e., when the cryogenic liquid pump is in the cold standby state. By means of the system and method, a cryogenic liquid product taken from a storage tank is pressurized by the cryogenic liquid pump to produce a lower-pressure product by taking full advantage of the low-speed operation of the cryogenic liquid pump in the cold standby state, and the lower-pressure product is transmitted to product supply lines of a user, to achieve the function of supplying the lower-pressure product to the user.

Abstract: A method for the additive manufacturing of a component, in which method the component is configured layer-by-layer from a base material which is solidified at least in regions in each layer, the method includes introducing at least one cooling gas flow for cooling at least the region to be solidified by way of at least one cooling medium nozzle into a carrier gas flow so as to form a cooling gas flow, wherein the cooling medium is present so as to be liquid and/or gaseous, wherein the cooling gas flow is guided through a de Laval nozzle, wherein the cooling medium flow is introduced such that the outflow of the cooling medium flow into the carrier gas flow takes place within or downstream of the de Laval nozzle, and the cooling gas flow is directed onto the component.

Abstract: A device for continuously mixing a first powder and a second powder, includes a first metering device for continuously metering the first powder, and a second metering device for continuously metering the second powder, a mixer designed to mix the first powder metered by the first metering device and the second powder metered by the second metering device so as to supply a continuous stream of powder mixed according to a determined ratio, and a sampling device designed to sample a fraction of the stream of mixed powder.

Abstract: A method for liquefying a hydrocarbon stream using a heat exchanger having a plurality of plates parallel to each other and to a longitudinal direction that is substantially vertical, the exchanger having a length measured in the longitudinal direction, the plates being stacked with spacing so as to define between them at least one first series of passages for the flow of at least part of a two-phase cooling stream vaporizing by exchanging heat with at least the hydrocarbon stream.

Abstract: The invention relates to a furnace for performing an endothermic process, the furnace including a plurality of process tubes containing a catalyst for converting a gaseous feed, wherein the process tubes are arranged in rows within the furnace, each row of process tubes thereby defining a process tube row, a plurality of inner burners arranged in rows, each row of inner burners being arranged between and parallel to process tube rows, thereby defining an inner burner row, and a plurality of outer burners arranged in rows, each row of outer burners being arranged between and parallel to a process tube row and a furnace wall, thereby defining an outer burner row. A number of burners of an outer burner row is smaller than a number of burners of an inner burner row. The invention also relates to a process for operating a furnace for performing an endothermic process.

Abstract: A detachable coupling device with automatic closure for the transport of fluid, including two fluid transport pipes extending in a longitudinal direction and each having, at one connection end, a valve mechanism, the device also including an external tube disposed around each transport pipe and, in the coupled position, the two connection ends are configured to be relatively longitudinally displaceable between a first configuration, in which the valve mechanisms are closed, and a second configuration, in which the valve mechanisms are open, the transition from the first configuration to the second configuration being realized by a relative longitudinal movement of the two valve mechanisms close to one another.

Abstract: In a compression process in a dynamic compressor having at least one first and one second compression stages, a first gas having a first molecular weight of less than 10 g/mol is compressed, at least one second fluid having a second molecular weight greater than 50 g/mol is mixed with the first gas to form a third gas to be compressed having a molecular weight greater than 10 g/mol, the third gas is sent to the first compression stage, the third gas is cooled in a first heat exchanger downstream of the first compression stage, where it is partially condensed, the partially condensed third gas is sent to a first phase separator to form a fourth gas having a lower molecular weight than the third gas and a first condensed liquid having a higher molecular weight than the third gas, the fourth gas is sent from the first phase separator to the second compression stage, the fourth gas compressed in the second compression stage is sent to cool in a second heat exchanger where it partially condenses, and the partially