Abstract: The invention relates to a device for cooling and/or liquefying, at a low-temperature, a working fluid containing helium or consisting of pure helium. The device includes a working circuit provided with a compressor station and a cold box. The compressor station includes one or more compression stages, each using one or more compressors that include a compressor wheel rigidly connected to an axle that is rotatably mounted on bearings. The axle of each compressor is rotated by an output shaft of a motor via a gear mechanism placed in a mechanical housing including lubricating oil. Said device is characterized in that the inner space of the mechanical housing contains a gaseous atmosphere consisting of a gaseous mixture having a mean molar mass that smaller than the molar mass of the air.

Abstract: A method for producing oxygen by adsorbing a stream of atmospheric air, using a VPSA, including at least one adsorber, each adsorber undergoing a single pressure cycle including the following steps: a) producing a first stream of gas having an oxygen content T1 while loading the adsorber of the stream of atmospheric air upstream; b) producing a second stream of gas including an oxygen content T2<T1: c) producing a third stream of gas including an oxygen content T3<T2<T1 while simultaneously extracting a nitrogen-enriched residual stream; d) eluting the adsorber, from which the three streams of gas produced in steps a), b), and c) are taken with the second stream of gas produced in step b); e) repressurizing the adsorber consecutively with at least two streams, first and second repressurizing streams, with increasing oxygen content.

Abstract: An integrated method for the production of liquefied natural gas (LNG) and syngas is provided. The method can include the steps of: utilizing letdown energy of a high pressure natural gas stream that is withdrawn from a natural gas pipeline to provide a warm temperature cooling; utilizing a refrigeration cycle to provide a cold temperature cooling, wherein the refrigeration cycle comprises a refrigerant recycle compressor that is powered utilizing a steam turbine; and cooling a second high pressure natural gas stream using the warm temperature cooling and the cold temperature cooling to produce an LNG product stream. The second high pressure natural gas stream is withdrawn from the natural gas pipeline, and the steam turbine is powered by high pressure steam that is produced from a syngas production facility.

Abstract: The invention relates to a coupling which includes at least: a tubular coupling member suitable for receiving a pipe and comprising one or more annular ribs, and a crimping ring arranged on the coupling member and translatably movable between a position for inserting the pipe into the coupling member, and a crimping position, in which the crimping ring immobilizes the pipe relative to the coupling member after the deformation of the one or more ribs. Recesses are formed between the coupling member and the pipe in the crimping position. The coupling has at least one exhaust opening arranged such as to provide fluid communication between said at least one recess and the outside of the coupling.

Abstract: The invention relates to a method for treating a mixture in order to separate carbon dioxide and hydrogen from said mixture, in which: i) the mixture is cooled and partially condensed and a first liquid is separated from the rest of the mixture in a first phase separator; ii) a gas from or derived from a gas from the first phase separator is treated in a hydrogen pressure swing adsorption module in order to produce a hydrogen-rich gas and a hydrogen-depleted residual gas; and iii) said hydrogen-depleted residual gas or a gas derived from said depleted gas is cooled and partially condensed and a second liquid is separated from the remaining gas in a second phase separator, separate from the first phase separator, wherein the first and/or second liquid being rich in carbon dioxide. The invention also relates to an installation for implementing such a method.

Abstract: A process for the stepwise separation of accompanying gases from a raw synthesis gas stream by a liquid absorbent countercurrently guided through all process steps and circulated via regeneration plants, wherein either the accompanying gases H2S, COS and CO2 are separated in a common absorption step or, in one of the selective absorption steps chiefly H2S and COS are separated and in the next step in flow direction of the gas chiefly CO2 is separated, and in the last step a separation of accompanying gas residues (fine wash) is effected, wherein before the separation of H2S and COS an absorption step chiefly for the separation of aromatics and subsequently an absorption step chiefly for the separation of methyl mercaptan is carried out.

Abstract: The invention relates to a device for providing pressurized fluid. The device includes a first functional assembly including a pressurized fluid bottle having an opening having attached therein a first tap including an inner fluid circuit including an insulating valve. The device includes a second functional assembly forming a physical entity separate from the first assembly. The second assembly includes a second tap having an inner fluid circuit. The first tap and the second tap include respective coupling members forming a removable rapid connection system. The device includes in the first assembly at least one electronic data storage communication unit that is removably, wirelessly queryable via electromagnetic waves and in that the second assembly includes at least one electronic communication unit for removably, wirelessly reading, via electromagnetic waves, data from the electronic member of the first assembly.

Abstract: The invention primarily concerns a facility for storing and cooling a liquefied gas, for example a liquefied natural gas, the facility comprising at least one tank configured to contain the liquefied gas, a closed cooling circuit configured to be supplied with liquefied gas in the liquid state coming from the tank, at least one injection member configured for reinjecting cooled liquefied gas into the tank, the facility being characterized in that it comprises at least one connection line configured to recover a cooled gas from at least one remote container that is separate and independent from the facility.

Abstract: Methods of synthesizing Si—H containing iodosilanes, such as diiodosilane or pentaiododisilane, using a halide exchange reaction are disclosed.

Abstract: Oxygen production process of VSA type from a flow of air, implementing at least one group of at least 3 adsorbers installed in parallel and following the same VSA cycle comprising, in succession, a phase of adsorption at the high pressure of the cycle, a phase of desorption at pressures lower than the high pressure of the cycle, a phase of repressurization of the adsorber to the high pressure of the cycle, characterized in that, periodically or exceptionally: a) at least one adsorber of the group of adsorbers is isolated so as to no longer follow the pressure cycle, b) the adsorbent contained in the adsorber isolated in the step a) is regenerated by raising the temperature, and c) the adsorber regenerated in the step b) is re-incorporated in the group of adsorbers so as to once again follow the pressure cycle.

Abstract: An isothermal container for preserving and/or transporting perishable or heat-sensitive products, includes a cryogenic compartment for a mass of a cryogenic fluid, a product storage compartment for the products to be preserved or transported, at least one Seebeck module, and at least one fan positioned within the product compartment to create forced convention therein that is electrically powered by the Seebeck module, which generates a voltage from the difference in temperature between the mass of cryogen and the ambient air temperature of the product compartment.

Abstract: The invention relates to a process and a plant for the methanol synthesis, in particular for the methanol synthesis from a synthesis gas which has a hydrogen deficiency. According to the invention, a purge gas stream therefor is branched off from the synthesis gas circuit of the methanol synthesis, liberated from methanol traces in a washing device, and then treated in a hydrogen separation device which comprises a membrane separation stage and a pressure swing adsorption stage. Depending on the application and magnitude of the hydrogen deficit the membrane separation stage and the pressure swing adsorption stage can be connected in series or in parallel.

Abstract: Group 4 transition metal-containing film forming compositions are disclosed. The Group 4 transition metal-containing film forming compositions comprise Group 4 transition metal precursors having the formula L2-M-C5R4-[(ER2)2—NR]—, wherein M is Ti, Zr, or Hf bonded in an ?5 bonding mode to the Cp group; each E is independently C, Si, B or P; each R is independently a hydrogen or a C1-C4 hydrocarbon group; and each L is independently a ?1 anionic ligand selected from the group consisting of NR?2, OR?, Cp, amidinate, ?-diketonate, or keto-iminate, wherein R? is a H or a C1-C4 hydrocarbon group and adjacent R?s may be joined to form a hydrocarbyl ring; provided that at least one R on the Cp is C1 to C4. Also disclosed are methods of synthesizing and using the disclosed precursors to deposit Group 4 transition metal-containing films on one or more substrates via vapor deposition processes.

Abstract: A liquid redistributor, arranged in a packing column between two packings, wherein in the column a liquid phase is guided from top to bottom and against the same a gas phase from bottom to top, comprising a liquid distributor tray and a droplet damping tray, which attenuates the fluidization of the liquid layer on the liquid distributor tray as caused by the droplets falling down.

Abstract: The invention relates to a direct-fired heating method and to a facility for implementing same, According to said method, a load is heated in a furnace with heat generated by burning fuel with an oxidant; the smoke generated is evacuated from the furnace, the evacuated smoke containing residual heat energy; residual heat energy is recovered from the evacuated smoke and introduced into a synthesis reactor wherein syngas is produced; and at least part of the syngas is burned in the furnace in order to heat the load.

Abstract: A hood comprising a flexible envelope and a reservoir of oxygen comprising a calibrated 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 pressurized oxygen comprises two independent storage compartments, a first compartment of which communicates with the outlet orifice and a second compartment of which is isolated from the outlet orifice via a sealed partition provided with a member for opening the partition, the opening member being switchable between a first configuration which prevents fluidic communication between the second compartment and the outlet orifice and a second configuration that allows fluidic communication between the second compartment and the outlet orifice, the opening member being sensitive to the pressure difference between the second compartment and the first compartment and being configured to automatically switch from the first to the second configuration when the pres

Abstract: A valve delimiting an internal circuit extending between an upstream end and a downstream end, the valve including, arranged in series in the internal circuit; an isolation valve and a dust valve, the isolation valve being movable relative to a set between an upstream closed position of the circuit and at least one downstream open position of the circuit. The isolation valve being biased toward the upstream position by a return member, the dust valve having a downstream end and being arranged downstream of the isolation valve and being movable relative to the body between an upstream closed position of the upstream end of the circuit and at least one downstream open position of the upstream end of the circuit.

Abstract: Tap for pressurised fluid, with or without integrated pressure regulator, including a body housing a fluid circuit having an upstream end to be connected to a pressurised fluid reservoir and a downstream end to be connected to a user device, the circuit including a valve for controlling the flow rate in the circuit, the valve being controlled by a lever pivotally mounted on the body of the tap between a first state rest position and a second state active position wherein, the outer surface of the tap comprises a groove and in that, in its first position, a first portion of the lever is housed in the groove and does not protrude or protrudes slightly with respect to the outer surface of the tap, while a second portion or the lever protrudes outside the groove.

Abstract: Methods for minimizing plasma-induced sidewall damage during low k etch processes are disclosed. The methods etch the low k layers using the plasma activated vapor of an organofluorine compound having a formula selected from the group consisting of N?C—R; (N?C—)—(R)—(—C?N); Rx[—C?N(Rz)]y; and R(3-a)—N—Ha, wherein a=1-2, x=1-2, y=1-2, z=0-1, x+z=1-3, and each R independently has the formula HaFbCc with a=0-11, b=0-11, and c=0-5.