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Patent Searching and Data


Title:
DISTILLATION OF BOTTOM RESIDUE
Document Type and Number:
Japanese Patent JPS5586883
Kind Code:
A
Abstract:

PURPOSE: To obtain white fuel fraction in high yield, by feeding the atmospheric distillation residue of crude oil to a flash column, and feeding the gas-oil fraction together with the top distillate of the flash column into a gas-oil stripper.

CONSTITUTION: Crude oil is distilled in an atmospheric distillation column, and the bottom residue is pumped to a flash column 2 by a pump 5. The gas-oil fraction obtained by the flashing of the bottom residue is extracted from the top of the column by a pump 6. A part of the extracted gas-oil is cooled by coolers 12 and 11, and recycled to the flash column 2, and the remaining part is mixed with the top distillate of the flash column 2 stored in a reservior 13, and stripped with the gas-oil stripper. The gas-oil is collected to the bottom of the stripper.


Inventors:
SEKINO MASAMI
TSUTSUMI KOUKICHI
Application Number:
JP14227178A
Publication Date:
July 01, 1980
Filing Date:
November 20, 1978
Export Citation:
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Assignee:
IDEMITSU KOSAN CO
International Classes:
C10G7/00; (IPC1-7): C10G7/00