Development of a stable cobalt-ruthenium Fischer-Tropsch catalyst. Technical progress report No. 15, 1 April 1993--30 June 1993
The high cobalt catalyst described in the previous quarterly report of this contract has been bound and evaluated in the fixed-bed and slurry autoclave pilot plants. The fixed-bed test showed it to be less active after binding than before. The purpose of binding is to provide a granular catalyst suitable for use in liquid phase Fischer-Tropsch (LPFT) processing. In such processing a granular catalyst is required to facilitate its separation from the FT wax product by mechanical means. The bound catalyst was evaluated in the slurry autoclave under LPFT conditions. In this test the temperature of the catalyst could be more precisely controlled at target than in the fixed-bed test due to the large amount of diluent and continual stirring. When operated at a temperature sufficient to induce the same conversion as in the fixed-bed test, the methane selectivity was 10 mole % --- 2% less than in the fixed-bed test. The high cobalt catalyst, bound and unbound, in the fixed-bed or slurry autoclave pilot plants, was not conversion stable. At a given temperature it seemed to approach a conversion line out, however, catalysts more stable at high conversion are required. The unbound catalyst contained more cobalt than previous unbound catalysts in this work. Furthermore, it contained a small amount of ruthenium. Either or both of these properties could have been responsible for the superior activity.
- Research Organization:
- UOP, Inc., Des Plaines, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-89PC89869
- OSTI ID:
- 10156807
- Report Number(s):
- DOE/PC/89869-T14; ON: DE94013074; TRN: 94:006033
- Resource Relation:
- Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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