Abstract: The invention relates to an apparatus for separating a product gas from an electrolysis medium, and for drying the product gas separated from the electrolysis medium. The apparatus includes a vessel, defining in its interior a liquid phase part and a gas phase part, whereby the liquid phase part and the gas phase part are immediately adjacent to each other, wherein the liquid phase part is configured to separate the product gas from the electrolysis medium loaded with product gas, to obtain a degassed electrolysis medium, and wherein the gas phase part is configured to dry the product gas separated from the electrolysis medium. The apparatus also includes an inlet for the supply of the electrolysis medium to the interior of the vessel, an outlet for discharging the degassed electrolysis medium from the vessel, and an outlet for discharging the separated product gas from the interior of the vessel.

Abstract: Electrolysis stack, including multiple layers that are stacked along a stacking direction, wherein each of the layers includes an anode space with an anode, a cathode space with a cathode and a membrane that separates the anode space and the cathode space from each other, wherein the anode space, the membrane and the cathode space are arranged adjacent to each other in the stated order along the stacking direction, and wherein each of the layers further includes a respective electrically insulating shell that surrounds the anode space and the cathode space so as to enclose the anode space and the cathode space radially with respect to the stacking direction, wherein the shell includes a groove on at least one of its end faces in the stacking direction, wherein the groove surrounds the anode space and the cathode space at least partially.

Abstract: Certain embodiments of the invention relate to a spacer element for a heat exchanger of the brazed plate and fin type, intended to be fitted between a first plate and a second plate of the exchanger, said spacer element comprising at least a first assembly portion configured to be assembled with the first plate and comprising a first pair of opposite surfaces, one of the surfaces of the first pair being oriented toward the first plate and the other of the surfaces of the first pair being oriented toward the second plate when the spacer element is in the fitted state, several fins or corrugation legs extending from said first assembly portion so as to delimit, when the spacer element is in the fitted state, a plurality of channels for the flow of a first fluid, and at least one surface texturing in the form of a porous structure or of reliefs formed on the surface of the spacer element, at least one fin or corrugation leg exhibiting said surface texturing.

Abstract: A reforming tube including a cavity emerging on either side of the tube, an external wall, an internal wall, a protection element for protecting against corrosion inserted into the cavity mirroring at least a portion of the internal wall, a space between the internal wall and the protective part, and a refractory material which fills in the space between the internal wall and the protection element.

Abstract: Process for depositing a coating on a substrate having at least one cavity, comprising a step of mixing ground powders of an activating agent and a powder of the metal or of the alloy to be deposited on the substrate that were ground in step a) and a liquid so as to form a suspension, and a step of applying the suspension to the portion of the substrate to be coated.

Abstract: A reforming tube including a cavity emerging on either side of the tube, an external wall, an internal wall, a protection element for protecting against corrosion inserted into the cavity mirroring at least a portion of the internal wall, a space between the internal wall and the protective part, and a refractory material which fills in the space between the internal wall and the protection element.

Abstract: Process for depositing a coating on a substrate having at least one cavity, comprising a step of mixing ground powders of an activating agent and a powder of the metal or of the alloy to be deposited on the substrate that were ground in step a) and a liquid so as to form a suspension, and a step of applying the suspension to the portion of the substrate to be coated.

Abstract: The use of a cement in a process for pack cementation deposition on a substrate having cavities of minimum equivalent diameter ecm, characterized in that the cement consists of spherical particles each having a diameter d such that d?ecm/10.

Abstract: A building brick with cellular structure comprising a porous material, said porous material being obtained by a process comprising the following successive steps: a step a) of synthesis of quicklime; a step b) of mixing said quicklime, water and silica; a step c) of introduction of a nucleating agent; a step d) of hydrothermal synthesis to obtain a ceramic mass, and a step e) of drying said ceramic mass obtained in step d).

Abstract: The invention relates to a seal assembly, which includes: (a) a ceramic tube (1); (b) a first ring (2) made of a refractory alloy including: a cylindrical opening (21) for receiving the ceramic tube; a first shoulder (22) which is located at the lower end of the ring, which is directed towards the interior of the cylindrical opening and which enables said ceramic tube to be supported; a second shoulder (23) forming, at the upper end of the ring, an annular space between the ceramic tube and the first ring made of a refractory alloy; (c) a second ring (3) which is made of a material that can be deformably sealed by heat-treatment, and which is located in the annular space formed by the second shoulder of the ring made of a refractory material; and (d) a third ring (4) made of a metal alloy, which is positioned on the upper edge of the first ring (2).

Abstract: A building brick with cellular structure comprising a porous material, said porous material being obtained by a process comprising the following successive steps: a step a) of synthesis of quicklime; a step b) of mixing said quicklime, water and silica; a step c) of introduction of a nucleating agent; a step d) of hydrothermal synthesis to obtain a ceramic mass, and a step e) of drying said ceramic mass obtained in step d).

Abstract: Method for preparing a sol-gel corresponding to the general formula (I): A(1-x)A?xB(1-y-u)B?yB?uO3-?,??(I), said method comprising the following steps: a) Preparing an aqueous solution of water-soluble salts of said elements A, A?, optionally A?, B, and B?, in stoichiometric proportions needed to obtain the material as defined above; b) preparing a hydro-alcoholic solution of at least one non-ionic surfactant in an alcohol, mixed with an aqueous solution of ammonia in a proportion sufficient to ensure the complete dissolution of said non-ionic surfactant in said hydroalcoholic solution, the concentration of said non-ionic surfactant in said hydro-alcoholic solution being less than the critical micelle concentration; c) mixing said aqueous solution prepared in step a), with said alcoholic dispersion prepared in step b) to form a sol; d) drying said sol obtained in step c), by evaporating the solvent, to obtain a sol-gel.

Abstract: A method of operating a mixed ionic-electronic conducting ceramic membrane having an oxidizing side and a reducing side, said method comprising a start-up phase and a production phase, for producing a gas stream, characterized in that the start-up phase comprises a step of introducing, on the oxidizing side and the reducing side of the membrane respectively, first and second gas mixtures not capable of chemically degrading the membrane; and a step of establishing a stream of oxygen through the membrane.

Abstract: A suspension 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. The fibers may be utilized in a gas separation module for separation of a gas mixture or production of syngas. The fibers may be installed in the gas separation module after sintering or they may be sintered after installation.

Abstract: A method of operating a mixed ionic-electronic conducting ceramic membrane having an oxidizing side and a reducing side, said method comprising a start-up phase and a production phase, for producing a gas stream, characterized in that the start-up phase comprises a step of introducing, on the oxidizing side and the reducing side of the membrane respectively, first and second gas mixtures not capable of chemically degrading the membrane; and a step of establishing a stream of oxygen through the membrane.

Abstract: A method of limiting the maximum stress developed in a hybrid ion-conducting ceramic membrane, a startup procedure for a reactor containing such a membrane, a shutdown procedure for a reactor containing such a membrane, and a process for producing a syngas implementing said startup and shutdown procedures are provided.

Abstract: A suspension 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. The fibers may be utilized in a gas separation module for separation of a gas mixture or production of syngas. The fibers may be installed in the gas separation module after sintering or they may be sintered after installation.

Abstract: A catalytic composition comprising a catalytically active metal and a solid support, characterized in that a proportion of said catalytically active metal is dispersed on the outer surface of said support and another proportion is included into the core structure of said solid support, and said solid support is a refractory and ionic conductive oxide.

Abstract: A catalyst assembly for catalyzing chemical reactions in a gas phase consists of a solid support, whose surface (S) is provided with an anchorage oxide (O) which is chemically different therefrom and is fixed thereto, wherein said anchorage oxide covers a non-zero area percentage of said solid support (S) surface and of a metal phase (M) catalytically active for the considered chemical reaction, is characterized in that said catalytically active metal phase (M) is anchored to said solid support (S) by means of the anchorage oxide (O) which is also grafted on the solid support (S).

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.