The effects of cerium promoter on the performance of cobalt-based catalysts in fischer tropsch synthesis for liquid fuel production. IIUM Engineering Journal, 21 (2). pp. 1-11. ISSN 1511-788X (2020)
Abstract
An intensive work of Fischer-Tropsch synthesis (FTS) on a cobalt-based catalyst supported with cerium as a promoter was presented. The influence of space velocity and inlet gas feed ratio on FTS reaction performance was studied for the synthesized catalysts. Incipient wetness impregnation method was utilized to synthesis both unpromoted (25%Co/γ-Al2O3) and cerium promoted (1%Ce-25%Co/γ-Al2O3) catalysts. The proposed catalysts were examined by N2 adsorption and temperature-programed reduction (TPR). The performance of Ce-promoted and unpromoted cobalt-based catalysts in FTS was assessed in terms of activity and selectivity to desired products (C5+). The obtained results revealed that the addition of cerium by impregnation notably favours the reducibility of cobalt oxides by reducing the reduction temperature. In addition, the promoted catalysts exhibited higher activity and selectivity toward desired products at low space velocity and high inlet gas feed ratio as compared with the unpromoted catalysts. In conclusion, a cerium based cobalt catalyst considered as a suitable candidate to be used in gas to the liquid conversion process.
| Item Type: | Article |
|---|---|
| Keywords: | Catalyst, Cerium promoter, Fischer-Tropsch synthesis, GTL, Syngas |
| Taxonomy: | By Subject > College of Engineering > Chemical Engineering > Oil and Gas Engineering > Petroleum Production Engineering |
| Local Content Hub: | Subjects > College of Engineering |
| Depositing User: | Eza Eliana Abdul Wahid |
| Date Deposited: | 13 Dec 2022 06:00 |
| Last Modified: | 13 Dec 2022 06:00 |
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