Desulfurization of residual petroleum oils and catalysts therefo

Details Desulfurization of residual petroleum oils and catalysts therefo Desulfurization of residual petroleum oils and catalysts therefo

1976-10-04

1978-04-11

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252458, B01J 2906, B01J 2900

Patent

active

040838080

ABSTRACT:
Residual oils comprising asphaltenes, metal compounds, and refractory sulfur compounds are hydrodesulfurized by contact with a unique type of cobalt-molybdenum-alumina catalyst characterized by certain critical physical properties of surface area, pore volume, pore size distribution, and by a specific type of active surface area, all resulting from a final calcining step carried out at temperatures between about 1250.degree. and 1400.degree. F for a sufficient time to give a pore size distribution such that at least about 40% of the total pore volume is in pores in the 75-100 angstrom diameter range.

REFERENCES:
patent: 3770618 (1973-11-01), Adams et al.
patent: 3853788 (1974-12-01), Feins et al.

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