Method of monitoring CO concentrations in hydrogen feed to a PEM fuel cell

• Main Authors: WEISBROD, KIRK, NEUTZLER, JAY KEVIN, GUTOWSKI, STANLEY, BORUP, RODNEY LYNN, GROT, STEPHEN ANDREAS, MELTSER, MARK ALEXANDER
• Format: Patent
• Language: English; French; German
• Published: 19.11.2003
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TESTING

A method of operating a H2-O2 fuel cell system comprising the principal steps of (1) providing a hydrogen-rich fuel gas having a first CO content sufficient to poison the fuel cell's anode, and (2) injecting oxygen into said fuel gas upstream of said fuel cell to oxidize said CO with O2 in the...