Solvent refining process
Patent
·
OSTI ID:5942786
An improved process is described for solvent refining lubricating oil base stocks from petroleum fractions containing both aromatic and nonaromatic constituents. The process utilizes n-methyl-2-pyrrolidone as a selective solvent for aromatic hydrocarbons wherein the refined oil fraction and the extract fraction are freed of final traces of solvent by stripping with gaseous ammonia. The process has several advantages over conventional processes including a savings in energy required for the solvent refining process, and reduced corrosion of the process equipment.
- Assignee:
- Texaco Inc
- Patent Number(s):
- US 4294689
- OSTI ID:
- 5942786
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
AMIDES
AMMONIA
AZOLES
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
LACTAMS
LUBRICANTS
LUBRICATING OILS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PYRROLES
PYRROLIDONES
SEPARATION PROCESSES
SOLVENT EXTRACTION
020500* -- Petroleum-- Products & By-Products
AMIDES
AMMONIA
AZOLES
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
LACTAMS
LUBRICANTS
LUBRICATING OILS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PYRROLES
PYRROLIDONES
SEPARATION PROCESSES
SOLVENT EXTRACTION