TITLE: Improved Catalysts for Liquid Hydrocarbon Fuels from Syngas. Fifth Quarterly Technical Progress Report, October-December 1985.

INST.  AUTHOR: Union Carbide Corp., Tarrytown, NY. Tarrytown Technical Center.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1985,  284p.

NTIS ORDER NO.: DE86010639/INW

ABSTRACT:

The work reported during this Quarter was directed to exploring and refining the promising developments obtained in the Fourth Quarter, and focused primarily on the newly developed promotor, X sub 11 , which was used in Catalyst 32. In two of the ten runs, the performance of the new Molecular Sieves TC-114 and TC-115 was investigated. Neither produced any improvement over the performance of TC-103. Other runs tested the effects of raising the concentrations of cobalt and X sub 11 and varying the pretreatment of the catalyst. At higher cobalt levels the methane production was reduced but stability was impaired. Higher levels of X sub 11 produced no apparent improvements at 240C, and had a deleterious effect at 260C. With different methods of pretreating the catalyst there were some improvements in performance, substantial enough to warrant further investigation. A new promoter, X sub 12, tested in combination with X sub11 , improved the catalyst's activity, had no effect on selectivity, and showed excellent stability at 240C but poor stability at 260C. Finally, an exact duplicate of the promising Catalyst 32 (Run 12200-19, Fourth Quarterly Report) was run in an attempt to replicate the earlier results.  Aside from a slightly inferior performance at 260C, the replication was successful. (ERA citation 11:031649)

REPORT  NUMBER: DOE/PC/70028-T6

CONTRACT  NUMBER: AC22-84PC70028