초록 ▼

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

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 M2/gm, low surface acidity, particle strength of 1.8-5 lb/mm with reduced particle attrition losses and improved catalyst performance characteristics.

대표청구항 ▼

An improved composite supported carbon-coated catalyst material for use in catalytic reaction processes, said catalyst comprising: (a) a particulate support material selected from the group consisting of alumina, silica, silica-alumina, magnesia, and titania and mixtures thereof; (b) a porous carbon

An improved composite supported carbon-coated catalyst material for use in catalytic reaction processes, said catalyst comprising: (a) a particulate support material selected from the group consisting of alumina, silica, silica-alumina, magnesia, and titania and mixtures thereof; (b) a porous carbon layer provided on said support material, said carbon layer being 5-40 wt. % of the composite catalyst and being treated by partial oxidation with oxygen in an inert atmospheric gas so as to increase pore volume and provide 0.3-1.0 cc/gm total pore volume, surface area of 80-600 M2/gm and increased particle crush strength at least about 1.5 lb/mm; and (c) at least one promoter metal or metal compound selectively added to said support material or carbon layer, said promoter being 0.5-10 wt. % of the composite catalyst, whereby a composite carbon-coated catalyst material is provided having high porosity and increased particle strength characteristics.