Abstract: The invention relates to a heat exchanger for a mobile refrigerated vehicle having a tank for liquefied gas comprising a pipe for accepting a flow of a liquefied gas and for the evaporation of at least one part of the liquefied gas, in conjunction with which the pipe, at least in sections, exhibits a longitudinal axis, and the heat exchanger comprises an inlet side for liquefied gas and an outlet side for at least partially evaporated gas, and in conjunction with which the outlet side is connected to an exhaust pipe in such a way as to permit a flow, in conjunction with which the pipe exhibits elements in its interior for the purpose of generating turbulences in the flow or a radial phase separation. The invention is characterized in that, with the help of the elements, the thickness of a gas interface layer on a wall of the pipe, which occurs as a result of vaporization of the gas, is reduced considerably, whereby the efficiency of the heat exchanger is increased considerably.

Abstract: A catalytic composition comprising a catalytically active metal and a solid support, characterized in that said catalytically active metal is included into the core structure of said solid support, and said solid support is a refractory and ionic conductive oxide, process for their preparation and its use as a catalyst in synthesis gas production.

Abstract: A fuel cell comprising a plurality of adjacent cell elements forming a stack of cell elements, a device for cooling said stack of cell elements by forced heat exchange with a coolant gas such as air by means of at least one generator of a gas flow along an airstream axis, which fuel cell comprises at least one gas flow stator member placed between the stack of cell elements and the generator, the stator member comprising at least one static blade formed to reduce the unevenness of the gas flow rate originating from the generator in a direction substantially perpendicular to the axis of the flow before it arrives at the stack.

Abstract: A process for producing variable gaseous nitrogen and variable gaseous oxygen by air distillation, during a period of high demand for gaseous nitrogen and for gaseous oxygen, liquid nitrogen is drawn off from a storage vessel, the liquid nitrogen is vaporized by heat exchange with a first flow of compressed, purified and cooled air, the vaporized nitrogen is sent to the customer and the first flow of liquefied air produced by the heat exchange is sent to a liquefied air storage vessel, liquid oxygen is drawn off from a storage vessel, the liquid oxygen is vaporized by heat exchange with a second flow of compressed, purified and cooled air, the vaporized oxygen is sent to the customer and the second flow of liquefied air is sent to the storage vessel.

Abstract: An oxycombustion apparatus comprising an air separation unit (2) in which oxygen (10) is produced optionally by cryogenic distillation, an oxycombustion boiler (1), means for sending the oxygen and a fuel (14) to the oxycombustion boiler, means (19) for recovering carbon dioxide-containing flue gases from the oxycombustion boiler, and means (7) for purifying the flue gases in order to extract carbon dioxide therefrom, the air separation unit being provided for producing oxygen to be sent to the boiler having a purity not exceeding 95 mol %.

Abstract: Safe filling is provided by a housing (8) controlling the pump (6) of the mobile tank (1) receiving, via a secondary hose (10), the pressure prevailing in the container (2) to be filled, a programmable logic enabling the pump to operate when the pressure measured in the container is within a predetermined range, adaptable according to the type of container. The invention is applicable in particular to gas containers.

Abstract: The invention relates to an expansion valve block which is equipped with coordinated means (8) for isolating the high-pressure circuit (3) and the low-pressure circuit (4) such that, when the gas delivery inlet is opened and closed, the two circuits are automatically controlled using the sequence that best guarantees the immunity of the installation.

Abstract: Device for filling a container with a gas under pressure, especially hydrogen in a tank of a vehicle, comprising at least one source (1, 2, 3, 6) of gas pressurized to a first pressure, called high pressure, a transfer circuit (201, 36, 13, 14, 136, 146) capable of selectively connecting the source or sources (1, 2, 3, 6) of pressurized gas to the tank to be filled, the transfer circuit comprising control members (204, 132, 142) for controlling the flow of the gas from the source or sources (1, 2, 3, 6) to the tank, the transfer circuit further including at least one cooling exchanger (9), for cooling the pressurized gas, wherein the cooling exchanger (9) comprises a hot flow circuit (99) for the pressurized gas to be cooled, a cold flow circuit (98) for a cold cooling fluid, and a refrigeration hold-over medium (5), the refrigeration hold-over medium (5) being in direct heat exchange, on the one hand, with the cold fluid of the cold circuit (98) and, on the other hand, with the pressurized gas to be cooled o

Abstract: The invention relates to a method for purifying a gas flow containing hydrogen (H2) and carbon monoxide (CO), in addition to at least one nitrogen oxide (NOx), as impurities. According to said method, the gaseous flow is brought into contact with at least one catalyst containing copper and/or palladium, at a temperature between 100 DEG C. and 200 DEG C., in such a way as to eliminate at least part of the nitrogen oxide.

Abstract: The invention relates to an assembly including a pressurized gas storage tank and a control device for filling the tank with gas and/or extracting gas therefrom. The aforementioned tank includes: a hole which communicates with the interior of the tank, a filling and distribution head which is disposed at the hole and which includes a pre-expansion device which is at least partially integrated inside the volume of the tank, and a connection interface which is removably engaged with the gas supply and/or extraction control device such as to co-operate therewith. The invention is characterized in that the head includes an isolation member, such as a valve, which is housed at least partially inside the volume of the head and which can be accessed by an opening member that is external to the head through an access hole that is provided in the head.

Abstract: The invention relates to a gas filling and distribution head (2) which is intended to be disposed in a hole in a pressurised gas storage tank. The inventive head (2) includes a mounting segment (21) which is intended to be housed in the hole in the tank and an expansion segment which houses a pre-expansion device (22), said pre-expansion device (22) being arranged in relation to the mounting segment (21) such as to be housed at least partially inside the tank when the head is in the mounted position. The head (2) also includes: a filling circuit which extends between a first end which is equipped with a filling hole (6) and a second end which is intended to communicate with the interior of the tank, and an extraction circuit which extends between a first end which is intended to communicate with the interior of the tank and a second end which is equipped with an extraction hole. The invention is characterised in that the filling hole (6) is aligned with the extraction hole.

Abstract: Apparatus and methods of supplying a highly enriched oxygen gas steam on board an aircraft. The gas stream is generated by an oxygen concentrator which concentrates atmospheric air by using at least one adsorber. The adsorber is made of a faujasite zeolite and has a Si/Al ratio between 1 and 1.5. The faujasite zeolite is also exchanged with silver by about 10%. Once generated, the gas stream is supplied to the airways of a person onboard an aircraft.

Abstract: An in situ combustion process is utilized to extract hydrocarbons from a subterranean oil formation. The process includes injecting a foaming agent solution into the formation via an injection well that penetrates the oil formation, injecting an oxygen containing gas into the formation via the injection well and facilitating a combustion reaction between oxygen and hydrocarbons within the formation. The combustion gases formed by the combustion reaction force the flow of hydrocarbons within the formation. Hydrocarbons that are displaced within the formation are extracted from the formation via a production well that penetrates the formation.

Abstract: According to the inventive method, incoming air enters (via 16) the separation unit (14); at least one fraction of said incoming air is supplied from the gas turbine (2), and at least one gas flow (via 20,24), which is enriched with nitrogen, is extracted from the separation unit (16); heat exchange occurs in a first exchanger (56) between the fraction of incoming air from the gas turbine (2) and a liquid fraction (58) to be heated in order to obtain a first heated liquid fraction (58); said heated liquid fraction (58) is added to a liquid mixture fraction (48) in order to obtain a liquid fraction to be cooled (60); heat exchange occurs between said liquid fraction which is to be cooled and the nitrogen-enriched gas flow in a second exchanger (50).

Abstract: A process for the integration of a cryogenic air separation plant and an oxy-combustion power plant is presented. This process includes producing a pressurized nitrogen stream and a pressurized oxygen stream within said cryogenic air separation plant. This process also includes burning a fuel stream thereby generating a steam stream from a boiler feed water stream, wherein said stream is used for work expansion within said oxy-combustion power plant. This process also includes heating said pressurized nitrogen stream and said pressurized oxygen stream with a compressed air stream that is extracted from the air compressor of said cryogenic air separation plant, thereby forming a heated pressurized nitrogen stream and a heated pressurized oxygen stream. This process also includes burning a fuel stream with said heated pressurized oxygen stream to produce a flue gas stream. This process also includes heating said heated pressurized nitrogen stream to form a hot pressurized nitrogen stream.

Abstract: A dispersion of inorganic particles, a copolymer comprising soft segments and hard segments, and a solvent may be extruded through a spinnerette to produce inorganic/organic composite hollow precursor fibers. The precursor fibers may be sintered to produce hollow ceramic fibers.

Abstract: The invention concerns a method for producing synthetic gas on an industrial site comprising at least one gas turbine wherein the oxygen-containing gas produced by the gas turbine is upgraded in a combustion implemented on the industrial site or in a heat recovery unit of the industrial site. Preferably, the oxygen-containing gas is used as oxidant of the combustion thereby enabling the reaction for forming the syngas. The invention also concerns a method for controlling the introduction of the oxygen-containing required for combustion to enable the syngas to be formed into a syngas reactor and an associated device.

Abstract: Method for filling a tank with a pressurized gas, in particular a vehicle tank with hydrogen, including the step of compressing the gas from a first gas source in order to fill said tank directly or via at least one buffer vessel, wherein the compression step is carried out using the energy from a working fluid, said method being characterized in that it comprises a step of heat exchange between said compressed gas and said working fluid.

Abstract: Methods of supplying an oxygen rich mixture to the occupants of an aircraft. The mixture is produced through a pressure swing adsorption system which has both an adsorption/production phase and a desorption/regeneration phase. The duration of one cycle of the adsorption system is less than ten seconds. The system makes use of a high-performance adsorbent which has a particle size of less than about 0.8 mm. The feed air which is introduced to the system has an inlet temperature between 50° C. and 90° C.

Abstract: Precursor for ruthenium film deposition, comprising ruthenium tetroxide dissolved in at least one non-flammable solvent, preferably a fluorinated solvent having the general formula CxHyFzOtNu wherein: 2x+2?y+z and 2?x?15 and z>y and t+u?1 (t+u preferably equal to 1) x, y, and z being positive integers equal to or greater than 1, t and u being integers greater than or equal to zero.