Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1983-05-16
1985-05-07
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208 89, 208108, 208 92, C10G 5500, C10G 5502
Patent
active
045156808
ABSTRACT:
A process is disclosed for increasing the volume of lubricating oil base stocks recovered from a crude oil. A fraction having an atmospheric boiling range of about 675.degree. to 1100.degree. F. is recovered by vacuum distillation. This fraction is treated with furfural to extract a hydrocarbon mixture containing at least 50 volume % aromatic hydrocarbons. The raffinate is a lubricating oil base stock very high in paraffinic hydrocarbons and low in naphthenic hydrocarbons. The fraction extracted by the furfural contains at least about 50 volume % aromatic hydrocarbons and less than about 10 volume % paraffinic hydrocarbons. The mixture is hydrotreated to hydrogenate a substantial portion of the aromatic hydrocarbons. The hydrotreated product then is catalytically dewaxed. After removal of low boiling components, the finished lubricating oil base stock has a viscosity of at least about 200 SUS at 100.degree. F., a pour point of less than 20.degree. F. and contains at least 50 volume % of naphthenic hydrocarbons, a maximum of about 40 volume % aromatic hydrocarbons, and a maximum of about 10 volume % paraffinic hydrocarbons.
REFERENCES:
patent: Re30529 (1981-02-01), Reynolds
patent: 2800433 (1957-07-01), Read
patent: 3012963 (1961-12-01), Archibald
patent: 3142635 (1964-07-01), Coonradt et al.
patent: 3232863 (1966-02-01), Watson et al.
patent: 3272734 (1966-09-01), MacLaren
patent: 3376214 (1968-04-01), Bertolacini et al.
patent: 3425932 (1969-02-01), Surrena et al.
patent: 3438887 (1969-04-01), Morris et al.
patent: 3520796 (1970-07-01), Murphy et al.
patent: 3562149 (1971-02-01), Bryson et al.
patent: 3617473 (1971-11-01), Lipscomb
patent: 3617476 (1971-11-01), Woodle
patent: 3619414 (1971-11-01), Mills et al.
patent: 3637483 (1972-01-01), Carey
patent: 3663422 (1972-05-01), Dun et al.
patent: 3663423 (1972-05-01), Bennett et al.
patent: 3663427 (1972-05-01), Thomas
patent: 3668113 (1972-06-01), Burbidge et al.
patent: 3702817 (1972-11-01), Cummins et al.
patent: 3730876 (1973-05-01), Sequeira
patent: 3779896 (1973-12-01), Woodle
patent: 3923636 (1975-12-01), Mead et al.
patent: 3968023 (1976-07-01), Yan
patent: 4003956 (1977-01-01), Hilfman
patent: 4137148 (1979-01-01), Gillespie et al.
patent: 4357232 (1982-11-01), Holland et al.
Beck H. Wayne
Hettinger, Jr. William P.
Rozman George J.
Turrill Frank H.
Ashland Oil Inc.
Caldarola Glenn A.
Gantz Delbert E.
Kelly Richard L.
Willson, Jr. Richard C.
LandOfFree
Naphthenic lube oils does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Naphthenic lube oils, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Naphthenic lube oils will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1798400