Compagnie Europeenne Des Technologies De L'hydrogene

Fanny Gaillard

Claude Etievant

Dominique De Lapparent

Karine Pointet

Roger Le Cren

The invention concerns a method for producing a gas rich in hydrogen by thermal pyrolysis of hydrocarbons which consists in carrying out, in a reactor (R) a catalyst-free thermal cracking to pyrolyze a fuel selected so as to produce either a gas rich in hydrogen and free of carbon monoxide, or a gas rich in hydrogen and containing carbon monoxide and in using said gas effluents during pyrolysis and inert with respect to the cell as fuel at the burner (B) to heat the reactor so as to bring it to a reaction temperature, and which consists, subsequently, in burning the powder carbon produced in the reactor (R) during the pyrolysis reaction either to produce carbon monoxide or to produce carbon dioxide. The invention is useful in particular for supplying hydrogen to fuel cells and for producing synthesis gas.

Method and device for the producing of a gas rich in hydrogen by thermal pyrolysis of hydrocarbons

The invention relates to a composite structure consisting of a relatively long filtration bar comprising, from the outside, an ultra-thin layer () that is selectively permeable to hydrogen and made from palladium or silver alloy. Said layer is disposed on a permeable, rigid, refractory substrate consisting of a more or less solid body () that is covered with an intermediary thin layer () having a relatively smooth surface. The body () and the intermediary layer () are made respectively by sintering with fine and ultra-fine Inconel grains. A rigid metallic axial structure () is embedded in the body (). Veinlets (), which are made in the body () through the destruction of thermo-destructible wires during sintering, increase the permeability of the substrate. The invention is particularly applicable to hydrogen-producing combustible gas processors.

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Nozay, France

Fanny Gaillard