Highly active and stable Rh/MgOAl2O3 catalysts for methane steam reforming |
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| Authors: | Y. Wang Y.H. Chin R.T. Rozmiarek B.R. Johnson Y. Gao J. Watson A.Y.L. Tonkovich D.P. Vander Wiel |
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| Affiliation: | aPacific Northwest National Laboratory, P.O. Box 999, MSIN:K8-93, Richland, WA 99352, USA;bVelocys, 7950 Corporate Blvd, Plain City, OH 43064, USA |
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| Abstract: | Highly active and coke-resistant Rh catalysts were developed for methane steam reforming in microchannel chemical reactors. Rh loading was optimized on a stable MgOAl2O3 support to improve the volumetric productivity for methane conversion. Catalyst activities were stable over a wide range of steam/carbon ratios. In particular, experimental results demonstrated that Rh/MgOAl2O3 catalysts are extremely active for methane steam reforming and are resistant to coke formation at stoichiometric steam/carbon ratio of 1 for over 14 h time-on-stream with no sign of deactivation. Methane steam reforming activities on this catalyst is compared in both a microchannel reactor and a conventional micro-tubular reactor. Significant performance enhancement was observed in microchannel reactors owing to improved heat and mass transfer. |
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| Keywords: | Methane steam reforming Rh/MgOAl2O3 catalyst Microchannel reactor |
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