Deactivation Behavior of Co/SiC Fischer-Tropsch Catalysts by Formation of Filamentous Carbon
- Authors
- Lee, B[Lee, BalSang]; Koo, HM[Koo, Hyun Mo]; Park, MJ[Park, Myung-June]; Lim, B[Lim, Byungkwon]; Moon, DJ[Moon, Dong Ju]; Yoon, KJ[Yoon, Ki June]; Bae, JW[Bae, Jong Wook]
- Issue Date
- Jan-2013
- Publisher
- SPRINGER
- Keywords
- Fischer-Tropsch synthesis; Cobalt; Silicon carbide
- Citation
- CATALYSIS LETTERS, v.143, no.1, pp.18 - 22
- Indexed
- SCIE
SCOPUS
- Journal Title
- CATALYSIS LETTERS
- Volume
- 143
- Number
- 1
- Start Page
- 18
- End Page
- 22
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/61910
- DOI
- 10.1007/s10562-012-0936-8
- ISSN
- 1011-372X
- Abstract
- Silicon carbide (SiC) having high thermal conductivity and macro-porosity was investigated for the Fischer-Tropsch Synthesis (FTS) reaction over Co-based catalysts in order to elucidate its support effects by surface modification with alumina. Even at a low temperature of around 230 A degrees C, filamentous carbon formation was observed on the unmodified Co/SiC catalyst possessing large cobalt crystallites with a weak metal-support interaction. On the contrary, the cobalt catalyst supported on the alumina-modified SiC was found to be superior with respect to the CO conversion and stability. Even though the dispersion of cobalt oxides on the alumina-modified SiC support was not significantly improved, the remarkable performance improvements of the alumina-modified Co/SiC catalyst were mainly attributed to the enhanced metal-support interaction by the added alumina which suppressed the filamentous carbon formation.
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