Carbon Deposition Effects in Co Hydrogenation over Alumina- and Y Zeolite-Supported Cobalt Catalysts

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While carbon deposition causes greater deactivation of smaller cobalt metal particles supported on alumina, finely dispersed cobalt clusters inside zeolite pores are highly resistant to carbon deposition. Carbon deposits reduce the activation energy of CO hydrogenation to almost half, and the blockage of active sites by polymeric and graphitic carbons results in a significant decrease in CO hydrogenation activity. Hydrocarbon product distributions are hardly affected by carbon deposits, but a shift in selectivity of paraffins to olefins is observed. © 1991.
Publisher
ELSEVIER SCIENCE PUBL B V
Issue Date
1991-12
Language
English
Citation

Studies in Surface Science and Catalysis, v.68, no.C, pp.219 - 226

ISSN
0167-2991
DOI
10.1016/S0167-2991(08)62636-1
URI
http://hdl.handle.net/10203/24115
Appears in Collection
CBE-Journal Papers(저널논문)
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