Attrition resistance study of iron-based Fischer-Tropsch catalysts
Conference
·
OSTI ID:20082311
The Fischer-Tropsch synthesis (FTS) provides a way of converting coal-derived synthesis gas (CO+H{sub 2}) to liquid fuels. Since the reaction is highly exothermic, one of the major problems in control of the reaction is heat removal. Recent work has shown that the use of slurry bubble column reactors (SBCRs) can largely solve this problem. Iron-based (Fe) catalysts are preferred catalysts for FTS using coal-derived syngas because they are relatively inexpensive and possess reasonable activity for F-T synthesis (FTS). However, their most advantageous trait is their high water-gas shift (WGS) activity compared to their competitor, cobalt. This enables Fe Fischer-Tropsch (F-T) catalysts to process low H{sub 2}/CO ratio synthesis gas without an external shift reaction step. However, a serious problem with the use of Fe catalysts in an SBCR is attrition. This can cause plugging of downstream filters and equipment, can make the separation of catalyst from the oil/wax product very difficult, and can result in a steady loss of catalyst from the reactor.
- Research Organization:
- Univ. of Pittsburgh, PA (US)
- OSTI ID:
- 20082311
- Country of Publication:
- United States
- Language:
- English
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