Process for the production of a catalyst layer on a carrier material and catalyst with a catalyst layer for the removal of hydrogen from a hydrogen and oxygen-containing gas mixture

US5643850A · kind A · utility

Assignees

• Forschungszentrum Jülich GmbH · DE
• Gesellschaft fur Reaktorsicherheit · DE

Inventors

• Amiya K. Chakraborty · Lechenich, DE
• Jurgen Rohde · Bensberg, DE
• Karl-Heinz Klatt · Jülich, DE
• Helmut Wenzl · Jülich, DE
• Ralf Konrad · Sinn, DE
• Tatjana Konrad · Rheinbach, DE

Key dates

• Filing date: Mar 17, 1995
• Grant date: Jul 1, 1997
• Expiry date: Mar 17, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2210/0053
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for producing a metallic catalyst layer or coating which serves for effectuating the removal of hydrogen from a gas mixture containing hydrogen and oxygen. The catalyst layer itself which is porous, comprises a metal, such as palladium (Pd) or platinum (Pt), or alloys of these metals, which catalytically influence the oxidation of hydrogen. The metal or the metal alloy is applied as a catalyst layer or coating onto a carrier material or substrate by either plasma spraying or flame spraying together with a jet of an inert gas. The present invention also provides a catalyst through the intermediary of a catalyst layer which is produced in accordance with the process of the instant invention.