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Performance of Pt-Fe/mordenite monolithic catalysts for preferential oxidation of carbon monoxide in a reformate gas for PEFCs

Paper ID Volume ID Publish Year Pages File Format Full-Text
43762 45987 2008 5 PDF Available
Title
Performance of Pt-Fe/mordenite monolithic catalysts for preferential oxidation of carbon monoxide in a reformate gas for PEFCs
Abstract

Pt-Fe/mordenite catalysts coated on ceramic straight-channel monoliths were evaluated for the preferential oxidation of carbon monoxide (PROX) in hydrogen-rich gas streams. In a feed gas containing 1% CO, 1% O2, with the balance H2, CO conversion reached almost 100% at temperatures ranging from 100 to 130 °C, i.e., an outlet CO concentration of less than 10 ppm. Even in a synthetic reformate gas (1% CO, 1% O2, 15% H2O, 20% CO2, balance H2), the monolithic catalyst exhibited excellent activity, reducing the CO concentration to less than 100 ppm. In particular, under optimized conditions, an outlet CO concentration of less than 10 ppm was realized. This is the first report that has demonstrated that monolithic catalysts could achieve the 10-ppm target level at a low O2/CO ratio and a high space velocity in a single-stage reactor. Excellent durability of the monolithic catalyst is expected, based on a lack of deterioration in performance during 500 h of operation.

Graphical abstractPt-Fe/mordenite catalysts coated on ceramic monoliths were evaluated for the preferential oxidation of carbon monoxide (PROX) in hydrogen-rich gas stream. The monolithic catalyst exhibited an excellent activity, reducing CO concentration to less than 10 ppm under optimized conditions. This is the first report that has demonstrated that monolithic catalysts could achieve the 10 ppm target level at a low O2/CO ratio and a high space velocity.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Preferential oxidation of carbon monoxide; Pt-Fe/mordenite catalyst; Monolith; Long-term durability; PEFC
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Performance of Pt-Fe/mordenite monolithic catalysts for preferential oxidation of carbon monoxide in a reformate gas for PEFCs
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 341, Issues 1–2, 15 June 2008, Pages 93–97
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us