Process for the hydrocracking of a hydrocarbonaceous feedstock

Details Process for the hydrocracking of a hydrocarbonaceous feedstock Process for the hydrocracking of a hydrocarbonaceous feedstock

1989-06-29

1990-08-21

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 95, 208100, C10G 6510

Patent

active

049503847

ABSTRACT:
A hydrocarbonaceous feedstock is hydrocracked by contacting the feedstock in a first reaction stage at elevated temperature and pressure in the presence of hydrogen with a first hydrocracking catalyst to obtain a first effluent, separating from the first effluent a gaseous phase and a liquid phase at substantially the same temperature and pressure as prevailing in the first reaction stage, contacting the liquid phase of the first effluent in a second reaction stage at elevated temperature and pressure in the presence of hydrogen and a second hydrocracking catalyst to obtain a second effluent, obtaining at least one distillate fraction and a residual fraction from the combination of the gaseous phase and the second effluent by fractionation, and recycling at least a part of the residual fraction to a reaction stage.

REFERENCES:
patent: 2243519 (1981-01-01), Schorfheide
patent: 3540999 (1970-11-01), Jacobs
patent: 3779897 (1978-12-01), Wrench et al.
patent: 3891539 (1975-06-01), Nelson et al.
patent: 4058449 (1977-11-01), Reitz et al.
patent: 4176048 (1979-11-01), Corns et al.
patent: 4501653 (1985-02-01), Hamner
patent: 4576710 (1986-03-01), Nongbri et al.
patent: 4828676 (1989-05-01), Sawyer et al.

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