Process of hydrodesulfurization and separate solvent extraction of distillate and deasphalted residual lubricating oil fractions
Patent
·
OSTI ID:6817659
A process is claimed for the production of lubricating oils from petroleum stocks containing significant quantities of sulfur and lubricating oil components boiling above about 650/sup 0/F (343/sup 0/C) by subjecting such stocks to a series of steps comprising hydrodesulfurization, fractionation, and solvent extraction. The residual fraction obtained from the fractionation step may be deasphalted prior to solvent extraction.
- Assignee:
- Gulf Research and Development Co.
- Patent Number(s):
- US 4085036
- OSTI ID:
- 6817659
- Country of Publication:
- United States
- Language:
- English
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