Revel, FR
Arnaud Revel, Serpaize FR
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20090318738 | SELECTIVE HYDROGENATION CATALYST AND PROCESS FOR ITS PREPARATION - The invention concerns a catalyst comprising palladium on an oxide of aluminium support. In the calcined state, the oxide of aluminium support has a diffractogram obtained by X ray diffraction comprising peaks which correspond to the following interplanar spacings and relative intensities: | 12-24-2009 |
Marc Revel, Saint Genies Bellevue FR
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20110290943 | METHOD AND APPARATUS FOR COOLING FUEL IN AN AIRCRAFT FUEL TANK - Fuel in an aircraft fuselage fuel tank is cooled by means of cold air flowing from the exterior of the aircraft to a cooling region inside the aircraft. The cooling region may be (a) located to the exterior of the fuel tank, (b) in thermal communication with the fuel tank and (c) in fluid communication with a region downstream of, and remote from, said cooling region, for example, an exhaust port on the outside of the aircraft. The flow of air may be caused by air entering a ram air intake, into which air passes as a result of the motion of the airborne aircraft relative to the surrounding air. | 12-01-2011 |
Olivier Revel, Pierrelaye FR
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20090114631 | Short-Circuit ARC Welding Process Using A Consumable Electrode - An arc welding process using a consumable electrode, in which welding cycles follow one after another over the course of time, each comprising an arc period and a short-circuit period in which the liquid metal establishes a short-circuit between the end of the electrode and the workpiece or workpieces. Each cycle comprises the steps of: maintaining an arc current I | 05-07-2009 |
20100012638 | TIG Braze-Welding With Metal Transfer In Drops At A Controlled Frequency - The invention relates to a braze-welding or arc-welding method using a TIG torch equipped with a non-consumable electrode ( | 01-21-2010 |
Renaud Revel, Serpaize FR
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20100069618 | PROCESS FOR PREPARING MATERIALS BY GRAFTING HALOGENATED PHOSPHORUS-CONTAINING GROUPS ONTO AN INORGANIC SURFACE - The invention concerns a process for preparing a hybrid organic-inorganic material (HOIM) with phosphorus-containing bridges between the surface of an inorganic substrate containing an element M and one or more organic groups of the covalent M-O-P-R type, said process using, as a precursor for said organic group or groups, at least one organophosphorus acid halide with formula R | 03-18-2010 |
20100133147 | CATALYST BASED ON AN ORGANIC-INORGANIC HYBRID SUPPORT AND ITS USE IN HYDROREFINING AND HYDROCONVERSION - A supported and sulphur-containing catalyst is described, comprising; | 06-03-2010 |
20100168493 | PROCESS FOR DEHYDROGENATION IN THE PRESENCE OF A BIMETALLIC OR MULTI-METALLIC CATALYST THAT HAS AN OPTIMIZED BIMETALLICITY INDEX AND AN OPTIMIZED HYDROGEN ADSORPTION CAPACITY - The invention relates to a process for dehydrogenation of a hydrocarbon feedstock in the presence of a catalyst that comprises a noble metal M that is selected from the group that consists of platinum, palladium, rhodium, and iridium, at least one promoter X1 that is selected from the group that consists of tin, germanium, and lead, and optionally a promoter X2 that is selected from the group that consists of gallium, indium and thallium, an alkaline or alkaline-earth compound and a porous substrate, in which the atomic ratio X1/M and optionally X2/M is between 0.3 and 8, the H | 07-01-2010 |
20100324346 | SELECTIVE HYDROGENATION CATALYST, AND PROCESS FOR ITS PREPARATION - The invention concerns a catalyst comprising nickel on an aluminium oxide support. The aluminium oxide support has, in the calcined state, a diffractogram obtained by X ray diffractometry comprising peaks which correspond to the following interplanar spacings and relative intensities: | 12-23-2010 |
20110105313 | USE OF SULPHUR-CONTAINING SUPPORTS FOR CATALYTIC REFORMING - The invention concerns a process for preparing a catalyst comprising at least one metal from group VIII, rhenium or iridium and a sulphur-containing support, said catalyst having a sodium content which is strictly less than 50 ppm by weight and a sulphur content in the range 1500 to 3000 ppm by weight. The invention also concerns the use of said catalyst in a catalytic reforming reaction. | 05-05-2011 |
Thomas Revel, Bordeaux FR
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20140356094 | ASSEMBLY PROVIDING A CONNECTION THAT IS SELF TIGHTENING WITH TEMPERATURE - An assembly comprising first and second parts made of composite material held one against the other by at least one fastener system comprising a bolt having a flat head from which there extends a threaded portion, and a nut having a flat head from which there extends a shank including tapping suitable for co-operating with the threaded portion of the bolt. The head of the bolt bears against a countersink formed in the first part. The head of the nut bears against a countersink formed in the second part. The fastener system is suitable, during axial expansion of the fastener system, for causing each head to tilt towards the countersink in which it is housed. | 12-04-2014 |
20140369785 | ASSEMBLY PROVIDING A CONNECTION THAT IS SELF TIGHTENING WITH TEMPERATURE - The invention relates to an assembly comprising first and second parts made of composite material and held against each other by at least one fastener system comprising a rivet having a flat head from which there extends a shank having an enlarged end, and a washer co-operating with the enlarged end of the shank of the rivet, the head of the rivet bearing against a countersink formed in the first part, the washer bearing against the second part. On its face remote from its face bearing against the second part, the washer presents a portion of conical shape. The washer also has a central countersink with the enlarged end of the shank of the rivet pressing thereagainst. | 12-18-2014 |