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Carbon deposition in steam reforming and methanation

Journal Article · · Catal. Rev. - Sci. Eng.; (United States)
The purpose of this review is to survey recent studies of carbon deposition on metals used as catalysts in steam reforming and methanation, emphasizing research where significant progress has been made. Where possible, an attempt is made to treat the fundamental nature of carbon formation and deactivation by carbon and the relationships between these two phenomena. Steam reforming and methanation are emphasized in this review because (1) deactivation of catalysts by carbon deposits is a serious concern in both processes, (2) much of the previous research with carbon formation on metals involved one or the other of these two reactions, and (3) there are interesting differences and similarities between these two reactions; for example, methanation is typically carried out at moderate reaction temperatures (200-450/sup 0/C) while steam reforming is typically carried out at significantly higher reaction temperatures (600-900/sup 0/C). Yet the two reactions are very closely related, since methane steam reforming is the reverse of methanation of CO. Moreover, there is evidence that some of the carbons formed in these two different processes are similar in their morphology.
Research Organization:
Brigham Young Univ., Provo, UT
OSTI ID:
6834112
Journal Information:
Catal. Rev. - Sci. Eng.; (United States), Journal Name: Catal. Rev. - Sci. Eng.; (United States) Vol. 24:1; ISSN CRSEC
Country of Publication:
United States
Language:
English