ATTRITION RESISTANT IRON-BASED FISCHER-TROPSCH CATALYSTS
Fischer-Tropsch (FT) synthesis to convert syngas (CO + H{sub 2}) derived from natural gas or coal to liquid fuels and wax is a well-established technology. For low H{sub 2} to CO ratio syngas produced from CO{sub 2} reforming of natural gas or from gasification of coal, the use of Fe catalysts is attractive because of their high water gas shift activity in addition to their high FT activity. Fe catalysts are also attractive due to their low cost and low methane selectivity. Because of the highly exothermic nature of the FT reaction, there has been a recent move away from fixed-bed reactors toward the development of slurry bubble column reactors (SBCRs) that employ 30 to 90 {micro}m catalyst particles suspended in a waxy liquid for efficient heat removal. However, the use of FeFT catalysts in an SBCR has been problematic due to severe catalyst attrition resulting in fines that plug the filter employed to separate the catalyst from the waxy product. Fe catalysts can undergo attrition in SBCRs not only due to vigorous movement and collisions but also due to phase changes that occur during activation and reaction.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- FG22-96PC96217
- OSTI ID:
- 800764
- Report Number(s):
- FG22-96PC96217-06; TRN: US200222%%307
- Resource Relation:
- Other Information: PBD: 1 Oct 1999
- Country of Publication:
- United States
- Language:
- English
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Attrition Resistant Iron-Based Fischer-Tropsch Catalysts
ATTRITION RESISTANT IRON-BASED FISCHER-TROPSCH CATALYSTS