TITLE: Slurry phase Fischer-Tropsch synthesis: Cobalt plus a water-gas shift catalyst. (Quarterly) report, October 1, 1988--December 31, 1988.

AUTHOR: I. C. Yates;   C. N. Satterfield.

INST.  AUTHOR: Massachusetts Inst. of Tech., Cambridge.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1988,  39p.

NTIS ORDER NO.: DE93006469INW

ABSTRACT:

A cobalt Fischer-Tropsch catalyst (CO/MgO/silica) was reduced and slurried in combination with reduced Cu/ZnO/Al(sub 2)0(sub 3) water-gas-shift catalyst. Combined catalyst system was run at fixed process conditions for more than 400 hours. The system showed stable selectivity. The Cu/ZnO/Al(sub 2)0(sub 3) water-gas-shift catalyst remained reasonably active in the presence of the cobalt catalyst.  Hydrocarbon selectivity of the cobalt and Cu/ZnO/Al(sub 2)0(sub 3) catalyst system compared favorably to selectivity of iron-based catalysts.  Methane selectivity was slightly higher for the cobalt-based system, but C(sub 5)(sup +) selectivity was essentially the same. The hydrocarbon product distribution appeared to exhibit a double-a behavior. a(sub 1) was near 0.80 which is higher than that of iron catalysts, while a(sub 2) was calculated to be 0.86 which is somewhat lower than would be typical for an iron-based catalyst.

REPORT  NUMBER: DOE/PC/79816-3

CONTRACT  NUMBER: AC22-87PC79816