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EP 0238740 B1 19890906 - PROCESS FOR IMPROVING BRIGHT STOCK RAFFINATE OIL PRODUCTION

Title (en)

PROCESS FOR IMPROVING BRIGHT STOCK RAFFINATE OIL PRODUCTION

Publication

EP 0238740 B1 19890906 (EN)

Application

EP 86302345 A 19860327

Priority

EP 86302345 A 19860327

Abstract (en)

[origin: EP0238740A1] A process of increasing the production of Bright Stock oil in a lube oil process scheme. Aromatic extract oil (38, Fig.1), after being separated from the extraction solvent, is recycled (40) back to the deasphalter unit (24) and combined with a vacuum residuum (from 20) in 10-20 LV%, based on the total deasphalter feed, prior to deasphalting. After deasphalting and aromatics extraction (32) the absolute yield of raffinate (36) is increased.

IPC 1-7

C10G 53/06

IPC 8 full level

C10G 53/06 (2006.01)

CPC (source: EP)

C10G 53/06 (2013.01)

Designated contracting state (EPC)

FR GB IT

DOCDB simple family (publication)

EP 0238740 A1 19870930; EP 0238740 B1 19890906; SG 74289 G 19900420

DOCDB simple family (application)

EP 86302345 A 19860327; SG 74289 A 19891116