초록 ▼

Cobalt catalysts, and processes employing these inventive catalysts, for hydrocarbon synthesis. The inventive catalyst comprises cobalt on an alumina support and is not promoted with any noble or near noble metals. In one aspect of the invention, the alumina support preferably includes a dopant in a

Cobalt catalysts, and processes employing these inventive catalysts, for hydrocarbon synthesis. The inventive catalyst comprises cobalt on an alumina support and is not promoted with any noble or near noble metals. In one aspect of the invention, the alumina support preferably includes a dopant in an amount effective for increasing the activity of the inventive catalyst. The dopant is preferably a titanium dopant. In another aspect of the invention, the cobalt catalyst is preferably reduced in the presence of hydrogen at a water vapor partial pressure effective to increase the activity of the cobalt catalyst for hydrocarbon synthesis. The water vapor partial pressure is preferably in the range of from 0 to about 0.1 atmospheres.

대표청구항 ▼

[ What is claimed is:] [1.] A cobalt catalyst for Fischer-Tropsch hydrocarbon synthesis, said cobalt catalyst comprising cobalt supported on a .gamma.-alumina support wherein:said cobalt catalyst is not promoted with any noble metals deposited on said .gamma.-alumina support, is not promoted with rh

[ What is claimed is:] [1.] A cobalt catalyst for Fischer-Tropsch hydrocarbon synthesis, said cobalt catalyst comprising cobalt supported on a .gamma.-alumina support wherein:said cobalt catalyst is not promoted with any noble metals deposited on said .gamma.-alumina support, is not promoted with rhenium or technetium deposited on said .gamma.-alumina support, and is not promoted with titanium deposited on said .gamma.-alumina support;said .gamma.-alumina support has an internal structure comprising .gamma.-alumina and a controlled amount of a titanium dopant; andsaid controlled amount of said titanium dopant in said .gamma.-alumina support is an amount effective for increasing the activity of said cobalt catalyst for said Fischer-Tropsch hydrocarbon synthesis.