Steam reforming catalyst

US6303098A · kind A · utility

Assignee

• THE UNIVERSITY OF CHICAGO · US

Inventors

• Kurt W. KRAMARZ · Murrysville, US
• Ira D. Bloom · Bolingbrook, US
• Romesh Kumar · Naperville, US
• Shabbir Ahmed · Naperville, US
• Rolf Wilkenhoener · Berlin, DE
• Michael Krumpelt · Naperville, US

Key dates

• Filing date: Aug 24, 1999
• Grant date: Oct 16, 2001
• Expiry date: Aug 24, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of forming a hydrogen rich gas from a source of hydrocarbon fuel. A vapor of the hydrocarbon fuel and steam is brought in contact with a two-part catalyst having a dehydrogenation powder portion and an oxide-ion conducting powder portion at a temperature not less than about 770.degree.C. for a time sufficient to generate the hydrogen rich. The H.sub.2 content of the hydrogen gas is greater than about 70 percent by volume. The dehydrogenation portion of the catalyst includes a group VIII metal, and the oxide-ion conducting portion is selected from a ceramic oxide from the group crystallizing in the fluorite or perovskite structure and mixtures thereof. The oxide-ion conducting portion of the catalyst is a ceramic powder of one or more of ZrO.sub.2, CeO.sub.2, Bi.sub.2 O.sub.3, (BiVO).sub.4, and LaGaO.sub.3.