The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2008
Filed:
Feb. 14, 2002
Claude Etievant, Versailles, FR;
Dominique DE Lapparent, Paris, FR;
Fanny Gaillard, Nozay, FR;
Roger Le Cren, Nogent sur Marne, FR;
Karine Pointet, Suede, FR;
Claude Etievant, Versailles, FR;
Dominique De Lapparent, Paris, FR;
Fanny Gaillard, Nozay, FR;
Roger Le Cren, Nogent sur Marne, FR;
Karine Pointet, Suede, FR;
Compagnie Europeenne des Technologies de l'Hydrogene, Marcoussis, FR;
Abstract
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.