US3732154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic hydrofinishing of lube oil product of solvent extraction of petroleum distillate
Assignee: Sunoco Inc
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Filing: 1970-09-08
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Granted: 1973-05-08
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Expires: 1990-09-08
Abstract
Abstract Hydrofinished petroleum products, useful as lube oils, rubber oils, refrigerator oils, transformer oils, cable oils, ATF and friction drive transmission fluids, etc., can be produced by a process comprising (1) solvent extracting petroleum distillate stock to obtain a raffinate product and an extract product, and (2) contacting at least one of these products with hydrogen, in the presence of a catalyst comprising a hydrogenating component selected from the group consisting of sulfides and oxides of a combination of nickel and at least one Group VIB metal (Cr, Mo, W). Especially preferred metal combinations are (a) nickel and molybdenum, (b) nickel, molybdenum and at least one other iron group metal (e.g., Co) and (c) nickel and tungsten. The preferred petroleum distillate is naphthenic by viscosity-gravity constant classification.
Inventors
- 👤 I Mills
- 👤 M Kirk
- 👤 A Olenzak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/58; C10G45/68; C10G2400/00; C10G2400/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
13 words
Process according to claim 1 wherein the hydrogenated oil product is clay treated.
Claim 2
Dependent Claim
18 words
The process of claim 2 wherein the hydrogenating component is a sulfided combination of nickel, cobalt and molybdenum.
Claim 3
Dependent Claim
19 words
The process of claim 2 wherein said contacting is carried out at an average catalyst temperature of about 680*F.
Claim 4
Dependent Claim
18 words
The process of claim 4 wherein the hydrogenating component is a sulfided combination of nickel, cobalt and molybdenum.
Claim 5
Dependent Claim
18 words
The process of claim 1 wherein the hydrogenating component is a sulfided combination of nickel, cobalt, and molybdenum.
Claim 6
Dependent Claim
118 words
A process for producing an electrical oil, a rubber oil or a refrigerator oil comprising contacting a raffinate product from extraction of a naphthenic distillate stock with an aromatic selective solvent, said product having a viscosity in the range of 40-10,000 SUS at 100*F, with hydrogen in thE presence of a catalyst selected from the group consisting of oxides or sulfides of a combination of cobalt, molybdenum and nickel said contacting being carried out at a temperature of about 650*-680*F, an LHSV of 0.1-8.0, a pressure at the reactor inlet of 800-3,000 psi of hydrogen, the combination of conditions being selected so as to effect appreciable hydrogen consumption but no substantial cracking and clay treating the hydrogenated oil.
Claim 7
Dependent Claim
104 words
A process for hydrofinishing petroleum distillate in the 40-12,000 SUS viscosity range comprising (1) solvent extracting said petroleum distillate to obtain a less aromatic raffinate product and a more aromatic extract and (2) contacting at least said raffinate product with hydrogen, in the presence of a catalyst comprising a hydrogenating component selected from the group consisting of sulfides and oxides of a combination of cobalt, nickel and molybdenum, said contacting being carried out at an average catalyst temperature of about 650*-680*F and with at least 500 psi of hydrogen, the combination of conditions being selected as to effect appreciable hydrofinishing but no substantial cracking.
Claim 8
Dependent Claim
17 words
A process according to claim 8 wherein said hydrorefined product is contacted with an acid-activated adsorbent clay.
Claim 9
Dependent Claim
20 words
Process according to claim 8 wherein the hydrogen pressure at the reactor inlet is in the range of 1,200-3,000 p.s.i.
Claim 10
Dependent Claim
34 words
Process according to claim 1 wherein said contacting is carried out at an inlet hydrogen pressure of from 800-3,000 p.s.i. and wherein the hydrogen entering the reactor is from 50 to 100 percent pure.
Claim 11
Dependent Claim
18 words
Process of claim 1 wherein said catalyst consists essentially of oxides or sulfides of molybdenum, nickel and cobalt.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |