Reforming reactor system and particle filter usable therefor

US5922291A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Josef Hanfling · Markdorf, DE
• Dietmar Heil · Deggenhausertal, DE
• Rainer Autenrieth
• Norbert Wiesheu · Sehnde, DE

Key dates

• Filing date: Jun 12, 1997
• Grant date: Jul 13, 1999
• Expiry date: Jun 12, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/50
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A reforming reactor system for water vapor reforming of methanol in fuel-cell operated motor vehicles has a reactor unit with a catalyst-filled reaction space and a particle filter which is arranged in a reformate gas pipe downstream of the reactor unit. The catalyst material is carried in the reaction space by a sieve below which a metallic nonwoven for catching sieved-out fragments and dust particles of the catalyst fill is situated. The particle filter contains a spun steel wool netting and/or several filter steps serially connected behind one another. The particle filter may be arranged to be exchangeable without interrupting the operation of the system. Specifically, a particle filter which has a filter body which can be changed in a gas-tight manner transversely to the gas flow and/or a cyclone filter can be used which has a closing device for the purpose of an emptying of a particle collecting pot which does not interrupt the operation.