Compagnie Francaise De Raffinage

Joseph Edouard Weisang

Philippe Engelhard

Georges Szabo

Alain Muller

Jean Maurin

Guy Paris

Jean Bezaudun

Jean Merle D'Aubigne

Catalysts particularly useful for hydroreforming and isomerization of hydrocarbons formed of a refractory mineral oxide carrier having a halogen in combined form and the following metals in free or combined state:

Catalysts for the hydrotreatment of hydrocarbons and their utilization

In a combined process for the storage and production of hydrogen from a hydrogen reserve containing magnesium in the free or combined state, said process consisting of storing the hydrogen in the supply, decomposing the supply to produce hydrogen, and reconstituting the supply of hydrogenation; the use of a dope comprising two elements in the free or combined state selected from the group consisting of cerium, nickel, titanium and molybdenum. Said process may be applied to hydrogen reserves used to fuel internal-combustion engines and for similar applications.

Combined hydrogen storage and production process

The preparation of hydrogen reserves by mixing magnesium with at least one other appropriate element, compacting the mixture obtained, and hydrogenating it. Such additional element includes at least one element selected from the group consisting of group IIIB, including the rare earths, and groups IVB, VIB, VIIB, VIII, and IA of the periodic table. In particular, the mixture is subjected to a heat treatment between the compacting and hydrogenation steps. Such reserves prepared have reversible capacities even at moderate temperatures.

Process for the preparation of a hydrogen reserve

The processes of the present invention employ catalysts in the hydrotreatment of hydrocarbons and comprise, on a refractory inorganic oxide support, the following metals:

Catalyzed processes for the hydrotreatment of hydrocarbons

A catalyst useful for the hydrotreatment of hydrocarbons comprising, on a refractory inorganic oxide support, the following metals: (a) from 0.02 to 2% of at least one platinum metal; (b) from 0.02 to 2% of at least one metal belonging to the group consisting of zirconium, titanium, and tungsten; (c) from 0.02 to 2% tin. This catalyst is preferably halogenated, typically with chlorine, from 0.4 to 2%. Catalysts according to this invention are particularly useful for isomerization of a charge of alkylaromatic hydrocarbons, and particularly those having eight carbon atoms. The preferred isomerization catalyst is a platinum, tin and zirconium trimetallic catalyst halogenated with chlorine approximately from 1 to 2% based on the total catalyst weight. Said catalysts are also useful for hydroreforming and aromatizing being surprisingly superior for all these types of reactions.

Catalysts for the hydrotreatment of hydrocarbons and processes for the

Catalysts are disclosed for the hydrotreatment of hydrocarbons, and particularly for reforming, which contain no platinum and which consist of:

Catalysts for the hydrotreatment of hydrocarbons and a process for the

Process, and resulting product, for improved hydroperoxidation of branched alkanes of at least 4 carbon atoms, especially useful in preparation of isoprene from isopentane; comprising the substantial elimination of acetic acid and similar by-products in the hydroperoxidation reaction which are harmful to the yield of the desired hydroperoxides; all of which is achieved by at least one washing between at least two successive oxidizing reactors. The wash solution may be just water or advantageously a pre-saturated aqueous solution containing the oxidation products which are desired not to be extracted from the organic phase of the reaction medium.

Process for the hydroperoxidation of branched alkanes in a plurality of

FUEL CELL HAS BEEN PROVIDED HAVING AN ELECTROLYTE OF SOLID, FRITTED CERAMIC SUITABLE FOR OPERATION AT HIGH TEMPERATURES AND FOR OPERATION ON A HYDROCARBON OR HYDROGEN AS A FUEL AND OXYGEN OR OXYGEN CONTAINING GAS AS A COMBURANT COMPRISING OF: AS AN ELECTROLYTE, A CUBIC PHASE-STABILIZED ZIRCONIA; A CATHODE; AND AS AN ANODE, AN ELECTRON COLLECTOR AND AN OXIDATION CATALYST. A method for preparing the anode therefor has been provided as well as a method directed to the operation of said fuel cell.

Electrode for fuel cell

A catalyst useful for the hydro-treatment of hydrocarbons comprising, on a refractory inorganic oxide support, the following metals:

Catalysts for the hydro-treatment of hydrocarbons and process of

Method for dehydrating diols into diolefins and/or olefin alcohols by contacting said diols under dehydration conditions with a catalyst prepared by forming an intimate mixture of finely divided solid particles of at least one pyrophosphate and at least one acid orthophosphate of at least one metal belonging to the group consisting of lithium, sodium, strontium, and barium into a formed mass which is thereafter calcined to transform the acid orthophosphate into pyrophosphate.

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Le Havre, France

Joseph Edouard Weisang