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A durable nanocatalyst of potassium-doped iron-carbide/alumina for significant production of linear alpha olefins via Fischer-Tropsch synthesis.
- Source :
-
Applied Catalysis A: General . Aug2018, Vol. 564, p190-198. 9p. - Publication Year :
- 2018
-
Abstract
- Improvement of activity, selectivity, and stability of the catalyst used in Fischer-Tropsch synthesis (FTS) to produce targeted hydrocarbon products has been a major challenge. In this work, the potassium-doped iron-carbide/alumina (K-Fe 5 C 2 /Al 2 O 3 ), as a durable nanocatalyst containing small iron-carbide particles (∼ 10 nm), was applied to high-temperature Fischer-Tropsch synthesis (HT-FTS) to optimize the production of linear alpha olefins. The catalyst, suitable under high space velocity reaction conditions (14–36 N L g cat −1 h −1 ) based on the well-dispersed potassium as an efficient base promoter on the active iron-carbide surface, shows very high CO conversion (up to ∼90%) with extremely high activity (1.41 mmol CO g Fe −1 s −1 ) and selectivity for C 5 –C 13 linear alpha olefins. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POTASSIUM
*METAL catalysts
*ALKENES
*FISCHER-Tropsch process
*CEMENTITE
Subjects
Details
- Language :
- English
- ISSN :
- 0926860X
- Volume :
- 564
- Database :
- Academic Search Index
- Journal :
- Applied Catalysis A: General
- Publication Type :
- Academic Journal
- Accession number :
- 131235373
- Full Text :
- https://doi.org/10.1016/j.apcata.2018.07.037