Abstract: A system of product gas collecting conduits for a steam reformer, containing a plurality of reaction tubes within a reformer housing, for the production of synthesis gas, comprising: a) a product gas collecting conduit arranged outside the reformer housing of the steam reformer, b) several port tubes arranged along the length of the conduit for connecting one reaction tube each to the product gas collecting conduit, c) at least one windshield for the protection of the product gas collecting conduit against wind and draft.

Abstract: In a method for compressing a gas that is to be separated in a low-temperature CO2 separation unit using at least one partial condensation step and/or at least one distillation step, the gas that is to be separated has a variable composition and/or variable flow rate, the gas that is to be separated is compressed in a compressor to produce a compressed gas and the inlet pressure of the gas that is to be separated, entering the compressor, is modified according to the CO2 content and/or the flow rate of the gas that is to be separated so as to reduce the variations in volumetric flow rate of the gas that is to be separated entering the compressor.

Abstract: Exchanger having a tube and fin bundle and comprising: a duct (4) through which a cryogenic fluid can flow between a fluid inlet (1) into the exchanger and a fluid outlet (2) from the exchanger; and a system of flat, continuous and parallel fins (3) through which said duct passes inside the exchanger, it being possible for air (12) to circulate within the exchanger by passing through channels delimited by the space between the duct and the parallel fins. The exchanger is characterized in that it comprises at least two independent ducts (10a, 10b) for the circulation of cryogenic fluid within the exchanger.

Abstract: A furnace for performing an endothermic process, comprising tubes containing a catalyst for converting a gaseous feed, wherein tubes are positioned in rows inside the furnace, wherein burners are mounted between the tubes and between the tubes and the furnace walls parallel to the tubes rows, and wherein the burners rows and the tubes rows are ended by end walls and are divided into sections with, on each row of tubes, the distance from a wall end tube to the end wall being T2W, the distance between two adjacent inner tubes in a section being T2T, and the distance between two symmetry end tubes of two adjacent sections being T2S, wherein the tubes in the rows are arranged in such a way that the ratios T2T/T2W and T2T/T2S are greater than 0.5 and smaller than 2 thus limiting the differences in the heat transfer to the outer tubes (wall end tubes and symmetry end tubes) with respect to the inner tubes and reducing the temperature difference between outer tubes and inner tubes.

Abstract: The invention relates to a reactor for the catalytic production of methanol, in which at least two catalyst layers are arranged. The first catalyst layer is arranged upstream and the second catalyst layer is arranged downstream. The activity of the first catalyst layer is higher than the activity of the second catalyst layer.

Abstract: A method for installation of a cryogenic distillation apparatus is provided. The method can include the steps of: providing an upper module section having an upper column section disposed within and secured to the upper module section, wherein the upper module comprises a roof; providing a lower module section having a lower column section disposed within and secured to the lower module section; erecting the lower module section from a horizontal position to a vertical position at an installation site; lifting the upper module section from a horizontal position and attaching the upper module section, while in a vertical position, to a top portion of the lower module section; lowering the upper column section, independent of the upper module section, toward the lower column section; and welding the upper column section and the lower column section together.

Abstract: Method for filling a storage vessel with liquefied gas by means of a tank of liquefied gas, the method comprising a step of transferring liquefied gas from the tank into the storage vessel by means of a pressure differential, wherein the storage vessel prior to the transfer step has an internal pressure higher than the internal pressure of the tank, the method comprising, prior to the transfer step, a step of placing the tank and the storage vessel in fluidic communication in order to ensure a drop in the pressure in the storage vessel to the benefit of the tank and a step of increasing the pressure in the tank using a pressurizing device.

Abstract: Disclosed are Group 6 film forming compositions comprising Group 6 transition metal-containing precursors selected from the group consisting of: M(?O)2(OR)2??Formula I, M(?O)(NR2)4??Formula II, M(?O)2(NR2)2??Formula III, M(?NR)2(OR)2??Formula IV, and M(?O)(OR)4??Formula V, wherein M is Mo or W and each R is independently H, a C1 to C6 alkyl group, or SiR?3, wherein R? is H or a C1 to C6 alkyl group. Also disclosed are methods of synthesizing and using the disclosed compositions to deposit Group 6 transition metal-containing films on substrates via vapor deposition processes.

Abstract: A method of co-producing a carbon dioxide containing stream and a syngas stream, including introducing a high-pressure hydrocarbon containing stream and a high-pressure oxygen containing stream into a syngas generator, thereby producing a high-pressure syngas stream, introducing a low-pressure hydrocarbon containing stream and a low-pressure oxygen containing stream into an oxy-combustion device, thereby producing a low-pressure carbon dioxide containing stream, and introducing the low-pressure carbon dioxide containing stream into a waste heat boiler, thereby producing steam, and introducing the steam into a work expander, thereby generating work and a carbon dioxide containing stream.

Abstract: A device for centrifugal compression of a working gas comprising a plurality of centrifugal compressors forming a plurality of compression stages and a plurality of drive motors for driving the compressors, the device comprising a gas circuit comprising a first pipe for supplying gas to be compressed into the first compressor, the gas circuit comprising a second pipe for discharging the gas compressed therein, the second pipe being connected to an inlet of a second compressor in order to carry out a second compression, the gas circuit comprising a third, cooling, pipe for transferring a fraction of the gas compressed in said compressor into said at least one first motor in order to limit heating thereof, the gas circuit comprising a fourth pipe for recovering the gas that has circulated in the first motor and a downstream end connected to an inlet of a second motor for transferring the gas into same in order to limit the heating of second motor.

Abstract: A fuel cell plate comprising a face intended to route a fuel gas or an oxidizing gas to the active surface of a Membrane Electrode Assembly, said face of the plate comprising projecting ribs delimiting a determined number of channels provided for the circulation of gas, the channels having a determined length (LCA) and a determined width (E), the ribs having a determined width (LA), the plate being characterized in that the product P of the total length (LN) of the ribs on the plate per unit of active surface (in cm2) multiplied by the rate of opening (TO) of the plate is between 4.7 and 10, i.e. that 4.7<P (cm?1)=LN×TO)/S<10, the rate of opening TO being defined by TO=100·(E/E+LA), the active surface of the plate being the surface of the plate intended to be facing the active surface of the Membrane Electrode Assembly.

Abstract: Replacement chemistries for the cC4F8 passivation gas in the Bosch etch process and processes for using the same are disclosed. These chemistries have the formula CxHyFz, with 1?x<7, 1?y?13, and 1?z?13. The replacement chemistries may reduce RIE lag associated with deep silicon aperture etching.

Abstract: A gas liquefaction and/or separation unit comprising at least one chamber, optionally insulated, of slender shape, wherein the chamber is arranged on a first concrete block and the chamber is anchored to the ground by means of at least three stay cables, each connected to a second separate concrete block, the second concrete blocks connected to the stay cables being arranged on the ground at the corners of a polygon, the first and second blocks having a depth below the reference level of the ground not exceeding 1 m.

Abstract: A method of temperature balancing for thermal integration of an air separation unit (ASU) with an oxycombustion power generation system, including compressing air through a plurality of compression stages, and routing a first stage compressed air stream through a first heat exchanger in heat exchange communication with a subsequent stage compressed air stream to lower the first stage compressed air stream temperature and increase the temperature of a subsequent stage compressed air stream.

Abstract: Device for supplying pressurized fluid, including at least one fluid reservoir provided with an orifice connected to a first valve housing an internal fluid circuit fitted with at least one shut-off member, and a second valve mechanically and detachably connected to the first valve, the second valve having an internal circuit for the transfer of pressurized fluid.

Abstract: A furnace for performing an endothermic process comprising tubes containing a catalyst for converting a gaseous feed, wherein tubes are positioned in rows inside the furnace, wherein burners are mounted between the tubes and between the tubes and the furnace walls parallel to the tubes row and wherein the burners rows and the tubes rows are ended by end walls and are divided into sections with the distance from the end burner to the end wall being B2W, the distance between two adjacent burners in the section being B2B, and half the distance in-between two sections being B2S, wherein the burners in the rows are arranged in such a way that the ratios B2B/B2W and B2B/B2S are greater than 1.3 thus limiting the occurrence of the flame merging phenomenon and reducing significantly the quadratic mean of the tube temperature profile.

Abstract: A cooling tower controlling system includes a plurality of cooling towers, a plurality of pumps, a circulation line through which circulating cooling water flows, a temperature measuring unit, a first load controlling unit, and a second load controlling unit. The temperature measuring unit measures a temperature TE1 of the circulating cooling water at a position upstream of a heat exchange unit and downstream of a storage unit. The first load controlling unit controls a rotational speed of the cooling fans so that an absolute value ?TE of the difference between the temperature TE1 and an outside air wet-bulb temperature TE0 comes within a first approach temperature AP1 corresponding to a first load in a first load period.

Abstract: Conditioning of tungsten pentachloride to form specific crystalline phases is disclosed. The specific crystalline phases permit stable vapor pressures over extended periods of time during vapor deposition and etching processes.

Abstract: Device for filling tanks with pressurized gas, in particular hydrogen gas tanks of motor vehicles, the device comprising at least one gas source, a transfer circuit comprising at least one upstream end connected to the source and at least one downstream end intended to be connected in removable fashion to a tank to be filled, the transfer circuit additionally comprising, between its upstream and downstream ends, a set of buffer storage container(s) which is (are) connected in parallel to the transfer circuit via a set of respective connecting valve(s), the transfer circuit comprising a portion of pipe(s) forming a loop, a plurality of the buffer storage container(s) being connected in parallel to the said loop, characterized in that the transfer circuit comprises a plurality of separate downstream ends each intended to be connected in removable fashion to a respective tank to be filled, the said downstream ends being connected in parallel to the said loop and comprising a set of respective linking valves, so

Abstract: Method and installation for calcining cement raw meal in a calciner whereby fuel and a calciner oxidant having an oxygen content of at least 30% vol are introduced into the calciner so as to generate either an oxidant-lean zone or a fuel-lean zone in the calciner located between the lowermost fuel inlet level and the lowermost oxidant inlet level of the calciner, between 50% and 100% by weight of the raw meal being supplied to the calciner upstream of and/or within the oxidant-lean, respectively the fuel-lean zone.