TITLE: Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 6, January 1, 1994--March 31, 1994.

AUTHOR: A. H. Singleton.

INST.  AUTHOR: Energy International, Inc., Pittsburgh, PA.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  3 Aug 94,  203p.

NTIS ORDER NO.: DE95002619INW

ABSTRACT:

The objective of this project is to investigate the influence of various promoters, additives, and supports on minimizing the methane selectivity and increasing water-gas shift (WGS) activity of cobalt (Co) Fischer-Tropsch (F-T) catalysts. The ultimate goal of this investigation is to identify and demonstrate a catalyst preparation procedure that will be scaled up for the reproducible synthesis of commercial quantities of supported CO catalysts with desired activity, selectivity, and lifetime for use in F-T synthesis in three-phase slurry bubble column reactors. The formulation of 9 new catalysts was established, 8 of which were during this period. In addition, 8 alumina-supported water-gas shift (WGS) catalysts were prepared. These catalysts will serve as supports onto which Co will be added in order to prepare FT catalysts with WGS activity. The characterization of all the catalysts in order to determine their physical properties (BET surface area, pore volume, pore size diameter, particle size distribution), as well as the cobalt reducibility, extent of reduction, and dispersion was continued. Fixed-bed reactor testing of the catalysts was continued. Fourteen new catalysts have been tested during this reporting period. Some catalysts have been retested for reproducibility checks. An investigation of the effect of Zr promotion of Co/SiO(sub 2) catalysts upon their performance for F-T synthesis was completed during this period. Under subtask 2.2 in the slurry bubble column reactor nine runs were made during this period, using three alumina-based catalysts, five silica-based catalyst, and one titania-based catalyst.

REPORT  NUMBER: DOE/PC/92108-T7

CONTRACT  NUMBER: AC22-92PC92108