Abstract: A facility and method for membrane permeation treatment of a feed gas flow containing at least methane and carbon dioxide that includes a compressor, a pressure measurement device, at least one valve, and first, second, third, and fourth membrane separation units for separation of CO2 from CH4 to permeates enriched in CO2 and retentates enriched in CH4, respectively. The at least one valve adjusts the number of membranes combined and connected to the flow of gas entering into at least one of the membrane separation units as a function of the pressure recorded by the pressure measurement device.

Abstract: A solid adsorbent fiber includes a solid support fiber is enveloped by a solidified polymeric binder and also adsorbent particles.

Abstract: A process and plant for producing a synthesis gas chiefly consisting of hydrogen and carbon monoxide by catalytic steam reformation of a hydrocarbonaceous feed gas, wherein the heat of burners required for the chemical reforming reactions to take place is generated by producing a flue gas and wherein, by utilizing the heat contained in the synthesis gas and in the flue gas, a pure steam is generated from boiler feed water and a process steam is generated from process condensate, wherein for the generation of the pure steam synthesis gas and flue gas are used and for the generation of the process steam a part of the pure steam is used as heat-transfer medium and the remaining part of the pure steam is discharged from the process as export steam.

Abstract: An in situ retrofit assembly for a top entry valve includes an annular conduit (100) configured to conform with a seat support (106) at the distal end (207) and a valve body extension (208) with an interior annular region (301). The valve body extension (208) comprises an inlet port (209) fluidically connected to the annular area (301). A gland packing push plate (211) is configured to allow the annular conduit (100) to pass through thereby forming an outlet port (212). This allows the removal of a portion of the fluid from the cold box for downstream processing or manipulation as desired.

Abstract: A method for filling a tank with pressurized gaseous hydrogen from at least one source storage containing pressurized gaseous hydrogen at a first defined temperature and at a defined pressure higher than the pressure in the tank to be filled, in which hydrogen is transferred from the source storage to the tank by pressure balancing via a filling circuit having an upstream end linked to the source storage and a downstream end linked to the tank, and in which the at least one source storage exchanges heat with a member for heating the gas stored in the source storage, during at least a part of the transfer of hydrogen from the source storage to the tank, the gas contained in the source storage being heated to a second defined temperature that is higher than the first temperature.

Abstract: Methods for fabricating a 3D NAND flash memory are disclosed. The method includes the steps of forming a hardmask pattern on the hardmask layer, and using the hardmask pattern to form apertures in the alternating layers by selectively plasma etching the alternating layers versus the hardmask layer using a hydrofluorocarbon etching gas selected from the group consisting of 1,1,1,3,3,3-hexafluoropropane (C3H2F6), 1,1,2,2,3,3-hexafluoropropane (iso-C3H2F6), 1,1,1,2,3,3,3-heptafluoropropane (C3HF7), and 1,1,1,2,2,3,3-heptafluoropropane (iso-C3HF7), wherein the first etching layer comprises a material different from that of the second etching layer.

Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.

Abstract: The invention relates to a method for cooling, purifying and separating a gaseous mixture containing at least one impurity, in which the gaseous mixture is cooled to a temperature no higher than the temperature at which the at least one impurity solidifies in a heat exchanger having cooling passages, the cooling passages being at least partially covered with a coating and/or physically treated and/or chemically treated, the coating and/or the treatment serving to limit or even prevent the solidified impurity from forming and/or adhering to a surface of the passages; at least one portion of the solidified impurity exiting the cooling passages of the heat exchanger is collected; and the gaseous mixture is withdrawn from the heat exchanger.

Abstract: A method for the production of liquefied natural gas (“LNG”) and nitrogen is provided.

Abstract: Method of operating a rotary furnace for the production of hydraulic binder so as to reduce ring formation therein, whereby the longitudinal temperature profile in the furnace is varied during furnace operation by injecting at least one fluid other than the main fuel(s) the primary oxidizer and hot air from the material cooler with at least one continuously or discontinuously varying injection parameter.

Abstract: The present invention is a process for removing carbon dioxide from a compressed gas stream including cooling the compressed gas in a first heat exchanger, introducing the cooled gas into a de-sublimating heat exchanger, thereby producing a first solid carbon dioxide stream and a first carbon dioxide poor gas stream, expanding the carbon dioxide poor gas stream, thereby producing a second solid carbon dioxide stream and a second carbon dioxide poor gas stream, combining the first solid carbon dioxide stream and the second solid carbon dioxide stream, thereby producing a combined solid carbon dioxide stream, and indirectly exchanging heat between the combined solid carbon dioxide stream and the compressed gas in the first heat exchanger.

Abstract: The invention relates to a gas sampling device for a filling station for hydrogen tanks, said device comprising a circuit comprising a first upstream end provided with an inlet connector to a detachably connected to an outlet connector of a filling station, and two conduits respectively for sampling and filling connected in parallel to the inlet connector, the sampling conduit comprising a valve system, a first pressure reducing valve and a container for collecting a sample of gas expanded by said first pressure reducing valve, and the filling conduit comprising a downstream end provided with a first outlet connector to a detachably connected to an inlet connector of a tank to be filled.

Abstract: Respiratory protection hood comprising a flexible envelope and a reservoir of pressurized oxygen comprising an outlet orifice that leads into the internal volume of the envelope, the outlet orifice being closed off by a removable stopper, characterized in that the reservoir of oxygen comprises, upstream of the orifice, a passage for the pressurized gas and a needle that is able to move in a given direction of displacement in said passage, the needle being subjected to two opposite forces in the direction of displacement, said forces being respectively generated on the one hand by the pressure of the gas in the reservoir and the other hand by a return member, the needle having a section with a defined profile that is variable in the direction of displacement in order to modify the degree of closure of the passage depending on the position of said needle relative to the passage so as to regulate the flow rate of gas allowed to escape via the passage towards the orifice as a function of time and the pressure of

Abstract: A process for producing olefins from oxygenates comprises the following steps: (i) heterogeneously catalyzed conversion of at least one oxygenate to an entire stream containing liquid and gaseous organic compounds and water, and (ii) separating the entire stream in a first separating means into a fraction containing at least 90 vol-% of the gaseous organic compounds of the entire stream, into a fraction containing at least 90 wt-% of the liquid organic compounds of the entire stream, and into a fraction containing at least 90 wt-% of the water of the entire stream. Furthermore, the invention also comprises a plant for carrying out this process.

Abstract: In a process for vaporizing a liquid stream rich in carbon dioxide wherein a liquid first stream rich in carbon dioxide is withdrawn from a chamber containing liquid rich in carbon dioxide and gas rich in carbon dioxide, the gas being at a pressure P1, the liquid first stream is sent to a heat exchanger where it is vaporized, all the liquid from the first stream is vaporized in the heat exchanger at a pressure or several pressures greater than P1, the vaporized first stream is extracted from the heat exchanger, expanded in a first expansion valve and sent to the heat exchanger where it is heated.

Abstract: A structured adsorbent sheet, is provided including a nano-adsorbent powder, and a binder material, wherein the nano-adsorbent powder is combined with the binder material to form an adsorbent material, and a porous electrical heating substrate, wherein the adsorbent material is applied to the porous electrical heating substrate thereby forming a structured adsorbent sheet. A structured adsorbent module is provided, including a plurality of stacked structured adsorbent sheets, configured to produce a plurality of fluid passages, wherein the plurality of fluid passages have a cross-sectional shape in the direction of a fluid stream. The structured adsorbent module may have a cross-sectional shape that is trapezoidal, rectangle, square, triangular or sinusoidal.

Abstract: In a method for purifying a flow rich in carbon dioxide and containing at least one impurity lighter than carbon dioxide, the flow is cooled in a heat exchanger (7) and partially condensed, the partially condensed flow is sent to a first phase separator (9) operating under a first pressure, a gas from the first phase separator is compressed and sent to a second phase separator (31) operating under a second pressure higher than the first pressure, a first liquid (11) is sent from the first phase separator to a housing (15) operating under a pressure lower than the first pressure, and a second liquid (33) is sent to the housing.

Abstract: A method for manufacturing ceramic foam, including impregnating polymer foam having an open porosity with a first suspension of ceramic particles in a solvent; drying the impregnated polymer foam; heat treating the dried polymer foam by thermally decomposing the dried polymer foam; unbinding the organic compounds contained in the polymer foam, and pre-sintering the ceramic particles contained in the polymer foam; impregnating the polymer foam with a second suspension of ceramic particles in a solvent; drying the polymer foam, sintering the ceramic particles contained in the polymer foam.

Abstract: The invention relates to equipment for separating air that includes a first average pressure distillation column, a second low-pressure distillation column, a third low-pressure distillation column, a first condenser-vaporizer, a second condenser-vaporizer arranged in the tank of the second column, a pipe for supplying air to the first column, a pipe for supplying a nitrogen-enriched liquid from the head of the first column to the head of the third column, at least one pipe for supplying the liquid from the tank of the third column to the first condenser-vaporizer, a pipe for supplying a liquid of the tank from the first column to the third column, a pipe for supplying the liquid from the first condenser-vaporizer to the second column, a pipe for supplying gas from the head of the second column to the tank of the third column, wherein the first, second, and third columns are arranged side by side.

Abstract: The invention relates to a fuel gas supply system for a power-consuming member, particularly a gaseous hydrogen supply system for a fuel cell or a heat engine, the system including at least one upstream end comprising a movable mechanical actuator for selectively controlling the opening of an insulation valve of a pressurized fuel gas tank to be coupled to the at least one upstream end, the supply system including a member for controlling the movement of the mechanical actuator, characterized in that the control member is mechanically connected to the actuator via a selectively movable mechanical movement transmission member, the control member being offset relative to the actuator so as to remotely ensure the offsetting of the actuator via mechanical forces.