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Promotion of lanthanum-supported cobalt-based catalysts for the Fischer–Tropsch reaction.
- Source :
-
Comptes Rendus Chimie . Jan2017, Vol. 20 Issue 1, p40-46. 7p. - Publication Year :
- 2017
-
Abstract
- This paper focuses on the effect of the La/Co ratio on the structure of alumina cobalt supported catalysts for Fischer–Tropsch synthesis. Catalysts are prepared by wetness impregnation of alumina followed by calcination in air. The catalysts contain 10 wt% of cobalt and between 0 and 20 wt% of La (0, 5, 10, 15, 20). The catalysts were activated by reduction in hydrogen at 673 K and the catalytic performance was evaluated in a fixed bed reactor at 20 bar and 493 K. A wide range of techniques (BET, XRD, TPR, and XPS) were used for catalyst characterization at each preparation step and showed strong impact of the La/Co ratio on the structure, reducibility of supported cobalt phases. It was shown that 10 wt% of lanthanum allows reducing cobalt aluminate and improving catalytic performances. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16310748
- Volume :
- 20
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Comptes Rendus Chimie
- Publication Type :
- Academic Journal
- Accession number :
- 120673087
- Full Text :
- https://doi.org/10.1016/j.crci.2016.02.006