The review of Cr-free Fe-based catalysts for high-temperature water-gas shift reactions

Title
The review of Cr-free Fe-based catalysts for high-temperature water-gas shift reactions
Authors
이대원이명석이준엽김성민엄희준문동주이관영
Keywords
Water-gas shift reaction; High-temperature shift; Fe/Cr catalysts: Cr-free catalysts
Issue Date
2013-07
Publisher
Catalysis today
Citation
VOL 210, 2-9
Abstract
Since it was patented by Bosch and Wild at 1914, the Fe/Cr-based mixed oxide catalyst has been used for water-gas shift reactions (WGSRs). Until the present, this catalyst has been used as the primary catalyst for industrial high-temperature shift (HTS) reactions. However, because environmental concerns about chromium elements were raised in the early 1980s, the replacement of chromium in HTS catalysts has been intensely studied by many groups. These studies have contributed notable insights into HTS catalysis using Fe-based oxides, especially about the reaction mechanism and functions of promoter elements. In some cases, the potential of using a substituent metal previously neglected because of properties inferior to those of chromium was rediscovered after noteworthy improvements were produced by combining it with other metals in promoting the Fe-oxide catalyst. This paper reviews the recent studies of Cr-free Fe-based HTS catalysts, especially focusing on the roles and functions of the non-chromium promoters in the catalysts.
URI
http://pubs.kist.re.kr/handle/201004/45107
ISSN
09205861
Appears in Collections:
KIST Publication > Article
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