Metal foam-supported Pd-Rh catalyst for steam methane reforming and its application to SOFC fuel processing

Title
Metal foam-supported Pd-Rh catalyst for steam methane reforming and its application to SOFC fuel processing
Author(s)
김기석박노국파르토로이
Keywords
WATER-GAS-SHIFT; HYDROGEN-PRODUCTION; CARBON-DIOXIDE; CONTACT TIMES; WASTE GASES; REACTOR; INTENSIFICATION; NEUTRALIZATION; OXIDATION
Issue Date
201403
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.9, pp.4299 - 4310
Abstract
Pd-Rh/metal foam catalyst was studied for steam methane reforming and application to SOFC fuel processing. Performance of 0.068 wt% Pd-Rh/metal foam catalyst was compared with 13 wt% Ni/Al2O3 and 8 wt% Ru/Al203 catalysts in a tubular reactor. At 1023 K with GHSV 2000 h(-1) and S/C ratio 2.5, CH4 conversion and H-2 yield were 96.7% and 3.16 mol per mole of CH4 input for Pd-Rh/metal foam, better than the alumina-supported catalysts. In 200 h stability test, Pd-Rh/metal foam catalyst exhibited steady activity. Pd-Rh/metal foam catalyst performed efficiently in a heat exchanger platform reactor to be used as prototype SOFC fuel processor: at 983 K with GHSV 1200 h(-1) and S/C ratio 2.5, CH4 conversion was nearly the same as that in the tubular reactor, except for more H-2 and CO2 yields. Used Pd-Rh/metal foam catalyst was characterized by SEM, TEM, BET and CO chemisorption measurements, which provided evidence for thermal stability of the catalyst. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/32919http://dx.doi.org/10.1016/j.ijhydene.2014.01.004
ISSN
0360-3199
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공과대학 > 화학공학부 > Articles
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