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Fischer-Tropsch slurry phase process variations to understand wax formations: Quarterly report, July 1, 1987-September 30, 1987

Technical Report ·
OSTI ID:5916828
The performance of a sample of Ruhrchemie catalyst is compared in an approximate fashion to that of a PETC precipitated Fe catalyst, Mobil low wax and high wax catalysts, Sasol fixed bed catalyst and C-73 fused magnetite catalyst. Results indicate that the Ruhrchemie catalyst has about one-third the activity of the other catalysts, and is much less active for the water gas shift. It shows a double ..cap alpha.. distribution, breaking at about C/sub 7/, ..cap alpha../sub 1/ = 0.68 and ..cap alpha../sub 2/ = 0.85. C/sub 12+/ formation was comparable to that from the PETC catalyst and the Mobil low wax catalyst, higher than that from C-73 and lower than that produced by Mobil high wax catalyst and in the Sasol fixed bed reactors. The effect of adding CO/sub 2/ during synthesis on a C-73 magnetite catalyst has been studied. CO/sub 2/ forms H/sub 2/O by the reverse water gas shift and the kinetics observed can be attributed to the H/sub 2/O formation. The effects on product selectivity also seem to be mostly attributable to the H/sub 2/O formed. 6 figs., 3 tabs.
Research Organization:
Massachusetts Inst. of Tech., Cambridge (USA)
DOE Contract Number:
AC22-85PC80015
OSTI ID:
5916828
Report Number(s):
DOE/PC/80015-8; ON: DE88001855
Country of Publication:
United States
Language:
English