TITLE: Investigation of Sulfur-Tolerant Catalysts for Selective Synthesis of Hydrocarbon Liquids from Coal-Derived Gases. Quarterly Technical Progress Report, March 19, 1981-June 18, 1981.

AUTHOR: C. H. Bartholomew.

INST.  AUTHOR: Brigham Young Univ., Provo, UT.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  15 Jul 81,  32p.

ABSTRACT:

During the seventh quarter, preparation of the proposed boride-promoted catalysts was completed. An aqueous solution technique was found to improve the preparation of the supported metal boride catalysts.  Characterization of 3 and 15% cobalt catalysts by O sub 2 titration and H sub 2 and CO chemisorptions showed dispersions to be near 7.3%. Reduction was optimum after 36 hours at 623 K. Activity/selectivity measurements showed Co/SiO sub 2 catalysts to be more active by an order of magnitude than corresponding Fe/SiO sub 2 catalysts in Fischer-Tropsch synthesis.  The unsupported cobalt boride was found to be less active, though it produced a higher molecular weight product than similar silica-support cobalt catalysts. H sub 2 S deactivation equipment construction and calibration has been completed and preliminary tests performed. (ERA citation 07:003141)

REPORT  NUMBER: DOE/ET/14809-7

CONTRACT  NUMBER: AC01-79ET14809