TITLE: Metal-Support Interactions: Their Effects Upon Adsorption, Electronic, and Activity/Selectivity Properties of Cobalt in CO Hydrogenation. Annual Progress Report, April 1, 1982-March 31, 1983.

AUTHOR:  C. H. Bartholomew.

INST.  AUTHOR:  Brigham Young Univ., Provo, UT. Dept. of Chemical Engineering.

SPONSOR:  Department of Energy, Washington, DC.

LANGUAGE:  English

PUB.  TYPE:  Technical Report

PUB.  COUNTRY:  United States

SOURCE:  Department of Energy [DE],  29 Apr 83,  14p.

NTIS ORDER NO.:  DE83013012/INW

ABSTRACT: 

 During the past year, measurements of dispersion, extent of reduction, H sub 2 and CO adsorption stoichiometries, CO hydrogenation activity and selectivity, and H sub 2 adsorption/desorption kinetics were conducted on 18 catalysts. Hydrogen adsorption was found to be highly activated and quite reversible; the adsorption stoichiometry corresponds to one hydrogen atom per surface cobalt atom. CO adsorption stoichiometries on the other hand vary considerably with support, dispersion, and preparation. Binding energies and adsorption states for H sub 2 on cobalt vary with support. Activity and selectivity in CO hydrogenation on cobalt vary with support, dispersion, and preparation. The specific activity and selectivity for heavier hydrocarbons decrease with increasing dispersion. (ERA citation 08:035366)

REPORT  NUMBER:  DOE/ER/10855-2

CONTRACT  NUMBER:  AC02-81ER10855