Porous metal oxide supported carbon-coated catalysts and method

Details Porous metal oxide supported carbon-coated catalysts and method Porous metal oxide supported carbon-coated catalysts and method

1990-06-21

1991-08-06

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

208217, 208251H, 502180, 502182, 502413, 502415, 502433, B01J 2118, B01J 2324, B01J 2388

Patent

active

050377914

ABSTRACT:
Supported carbon-coated catalyst material and a method for producing and using same in catalytic reaction processes, preferably in ebullated or fluidized catalyst beds. The catalyst materials are prepared by depositing a porous carbon layer on a support material of a selected metal oxide or compound to produce 5-40 wt. % carbon thereon, then preferentially treating the carbon based layer by partial oxidation, pyrolysis or reduction to enhance and activate the carbon layer on the catalyst. Promoter materials can also be advantageously added either to the support material or to the carbon layer in 0.5-10 wt. % to provide an improved composite carbon-coated catalyst having total pore volume of 0.3-1.0 cc/gm, substantially increased surface area of 80-600 M.sup.2 /gm, low surface acidity, particle strength of 1.8-5 lb/mm with reduced particle attrition losses and improved catalyst performance characteristics.

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patent: 4454240 (1984-06-01), Ganguli
patent: 4595666 (1986-06-01), Ganguli

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