US3775292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination process for the conversion of hydrocarbonaceous black oil
Assignee: Honeywell UOP LLC
•
Filing: 1972-08-01
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Granted: 1973-11-27
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Expires: 1992-08-01
Abstract
Abstract Maximum conversion of black oil charge stocks to distillable hydrocarbon products is achieved through a combination process involving solvent deasphalting, solvent deresining and multiplestage hydrocracking.
Inventors
- 👤 C Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:35
CPC Classifications
C; C10; C10G; C10G67/00; C10G67/02; C10G67/04; C10G67/0454; C10G67/049
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
28 words
The process of claim 1 further characterized in that the extraction conditions in said second extraction zone include a higher temperature than that in said first extraction zone.
Claim 2
Dependent Claim
23 words
The process of claim 1 further characterized in that the resulting first reaction zone effluent is introduced into said second solvent extraction zone.
Claim 3
Dependent Claim
33 words
The process of claim 1 further characterized in that the selective solvents in said first and second extraction zones comprise a light hydrocarbon containing from one to about seven carbon atoms per molecule.
Claim 4
Dependent Claim
29 words
The process of claim 1 further characterized that said selective solvents are normally liquid naphtha fractions containing hydrocarbons having from about five to about 14 carbon atoms per molecule.
Claim 5
Dependent Claim
19 words
The process of claim 5 further characterized in that said naphtha fractions have end boiling points below about 200*F.
Claim 6
Dependent Claim
69 words
The process of claim 1 further characterized in that the hydrocracking cOnditions, in said first and second reaction zones, include a pressure from about 500 to about 5,000 psig., a hydrogen concentration in the range of about 1,000 to about 30, 000 scf./Bbl., a liquid hourly space velocity of from about 0.25 to about 2.50 and a maximum catalyst bed temperature in the range of 600*F. to about 900*F.
Claim 7
Dependent Claim
37 words
The process of claim 1 further characterized in that said first and second reaction zones have disposed therein a catalytic composite of a porous carrier material, a Group VI-B metal component and a Group VIII metal component.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |