Start-up method for a hydrorefining process

Details Start-up method for a hydrorefining process Start-up method for a hydrorefining process

1983-02-03

1984-11-27

Dees, Carl F.

Mineral oils: processes and products

Refining

Sulfur removal

208251H, 208254H, C10G 4508

Patent

active

044850069

ABSTRACT:
A hydrorefining process for heavy hydrocarbonaceous oils, such as gas oils, is initiated by contacting a sulfided hydrorefining catalyst, such as nickel-molybdenum on alumina, with a light hydrocarbonaceous oil boiling in the range of C.sub.5 to 700.degree. F., in the presence of hydrogen, at specified conditions and, thereafter, contacting the catalyst with the heavy hydrocarbonaceous oil to be hydrorefined.

REFERENCES:
patent: 2954339 (1960-09-01), Beavon
patent: 3368965 (1968-02-01), Schuman
patent: 3423307 (1969-01-01), McKinney et al.
patent: 3528910 (1970-09-01), Haney et al.
patent: 3953214 (1976-04-01), Ganster et al.
patent: 4098721 (1978-07-01), Ganster et al.
patent: 4149965 (1979-04-01), Pine et al.

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