TITLE: Fischer-Tropsch Synthesis in Slurry-Reactor Systems. Quarterly Report, May 1, 1982-July 31, 1982.

AUTHOR: C. N. Satterfield;   T. Bartos;   G. A. Huff;   H. Stenger;   R. Summerhayes.

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],  1982,  56p.

NTIS REPORT NO.: DE82019425

ABSTRACT:

We have previously reported that our studies with addition of olefin to synthesis gas on an iron catalyst showed no evidence of incorporation of ethylene into the growing chains, contrary to a report by Dwyer and Somorjai. Some additional runs were made and the whole subject has been reviewed and interpreted. Particularly interesting was the finding that the total product distribution on a carbon number basis clearly followed a double alpha value. From C sub 1 to C sub 10 on alpha of about 0.70 was typical, but above C sub 20 alpha was about 0.93. This means that the % conversion of synthesis gas to liquid fuels would be significantly greater than predicted from the usual single alpha plot based on light gas analysis. The results are interpreted in terms of a 2-site mechanism.  Similar observations were reported in Germany during World War II, in the Schwarzheide test on iron catalysts, but subsequently there was considerable questioning as to whether the effect was real. The present findings clearly support the German observations. A Sc.D. thesis attached has been entered separately into EDB and ERA. (ERA citation 07:053233)

REPORT  NUMBER: DOE/PC/40771-5

CONTRACT  NUMBER: FG22-81PC40771