Compagnie Europeenne Des Technologies De L'hydrogene

Roger Le Cren

Claude Etievant

Dominique De Lapparent

Karine Pointet

Fanny Gaillard

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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Nogent-Sur-Marne, France

Roger Le Cren