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:
Sep. 24, 2002
Filed:
May. 09, 2001
Ronald G. Silver, Tolland, CT (US);
UTC Fuel Cells, LLC, South Windsor, CT (US);
Abstract
A shift converter ( ) in a fuel processing subsystem ( ) for a fuel cell ( ) uses an improved catalyst composition ( ) to reduce the amount of carbon monoxide in a process gas for the fuel cell ( ). The catalyst composition ( ) is a noble metal catalyst having a promoted support of mixed metal oxide, including at least both ceria and zirconia. Cerium is present in the range of to mole %, and zirconium is present in the range of to mole %. Additional metal oxides may also be present. Use of the catalyst composition ( ) obviates the requirement for prior reducing of catalysts, and minimizes the need to protect the catalyst from oxygen during operation and/or shutdown.