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Cr-free Fe-based metal oxide catalysts for high temperature water gas shift reaction of fuel processor using LPG

Authors
Lee, Joon YeobLee, Dae-WonLee, Kwan-YoungWang, Yong
Issue Date
15-8월-2009
Publisher
ELSEVIER SCIENCE BV
Keywords
WGSR; HTS; LPG; Cr-free catalyst; Fuel processor
Citation
CATALYSIS TODAY, v.146, no.1-2, pp.260 - 264
Indexed
SCIE
SCOPUS
Journal Title
CATALYSIS TODAY
Volume
146
Number
1-2
Start Page
260
End Page
264
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119485
DOI
10.1016/j.cattod.2009.01.041
ISSN
0920-5861
Abstract
The goal of this study was to identify the most suitable chromium-free iron-based catalysts for the HTS (high temperature shift) reaction of a fuel processor using LPG. Hexavalent chromium (Cr6+) in the commercial HTS catalyst has been regarded as hazardous material. We selected Ni and Co as the substitution for chromium in the Fe-based HTS catalyst and investigated the HTS activities of these Cr-free catalysts at LPG reformate condition. Cr-free Fe-based catalysts which contain Ni, Zn, or Co instead of Cr were prepared by coprecipitation method and the performance of the catalysts in HTS was evaluated under gas mixture conditions (42% H-2, 10% CO, 37% H2O, 8% CO2, and 3% CH4; R (reduction factor): about 1.2) similar to the gases from steam reforming of LPG (100% conversion at steam/carbon ratio = 3), which is higher than R (under 1) of typically studied LNG reformate condition. Among the prepared Cr-free Fe-based catalysts, the 5 wt%-Co/Fe/20 wt%-Ni and 5 wt%-Zn/Fe/20 wt%-Ni catalysts showed good catalytic activity under this reaction condition simulating LPG reformate gas. (C) 2009 Elsevier B.V. All rights reserved.
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Lee, Kwan Young
공과대학 (화공생명공학과)
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