US4089773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefaction of solid carbonaceous materials
Assignee: Mobil Oil AS
•
Filing: 1976-12-01
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Granted: 1978-05-16
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Expires: 1996-12-01
Abstract
Abstract This invention provides an improved process for solubilizing coal and other solid carbonaceous materials which involves heating a slurry of comminuted carbonaceous material and liquefaction solvent in contact with water, carbon monoxide, and a catalytic quantity of alkanol to produce a heavy oil or bitumen composition.
Inventors
- 👤 Wilton F. Espenscheid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:33
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/04; C10G1/042
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
63 words
In a process for dissolution of solid carbonaceous material the improvement which consists essentially of heating at a temperature between about 400° and 1200° F and a pressure between about 200 and 6000 psi a slurry of comminuted carbonaceous material and a petroleum refinery highly aromatic residuum hydrogen-donor liquefaction solvent in contact with water, a catalytic quantity of primary alkanol, and carbon monoxide.
Claim 2
Dependent Claim
63 words
In a process for dissolution of solid carbonaceous material the improvement which consists essentially of heating at a temperature between about 400° and 1200° F and a pressure between about 200 and 6000 psi a slurry of comminuted carbonaceous material and a petroleum refinery highly aromatic residuum hydrogen-donor liquefaction solvent in contact with water, a catalytic quantity of primary alkanol, and carbon monoxide.
Claim 3
Dependent Claim
40 words
A process in accordance with claim 1 wherein the slurry of comminuted carbonaceous material and liquefaction solvent is pre-heated until the carbonaceous material is substantially solubilized before contacting the said slurry with the water, primary alkanol, and carbon monoxide components.
Claim 4
Dependent Claim
14 words
A process in accordance with claim 1 wherein the solid carbonaceous material is coal.
Claim 5
Dependent Claim
18 words
A process in accordance with claim 1 wherein the solid carbonaceous material is at least partly municipal refuse.
Claim 6
Dependent Claim
18 words
A process in accordance with claim 1 wherein the solid carbonaceous material is at least partly sewage sludge.
Claim 7
Dependent Claim
18 words
A process in accordance with claim 1 wherein the solid carbonaceous material is at least partly cellulosic waste.
Claim 8
Dependent Claim
24 words
A process in accordance with claim 1 wherein the liquefaction solvent has a boiling point in the range between about 450° and 950° F.
Claim 9
Dependent Claim
17 words
A process in accordance with claim 1 wherein the liquefaction solvent is a FCC main column bottoms.
Claim 10
Dependent Claim
17 words
A process in accordance with claim 1 wherein the liquefaction solvent is a FCC clarified slurry oil.
Claim 11
Dependent Claim
16 words
A process in accordance with claim 1 wherein the liquefaction solvent is a TCC syntower bottoms.
Claim 12
Dependent Claim
31 words
A process in accordance with claim 1 wherein the primary alkanol is present in a quantity between about 0.1 and 10 weight percent, based on the weight of solid carbonaceous material.
Claim 13
Dependent Claim
13 words
A process in accordance with claim 1 wherein the primary alkanol is methanol.
Claim 14
Dependent Claim
28 words
A process in accordance with claim 1 wherein the carbon monoxide partial pressure is maintained at a level of at least about 20 percent of the total pressure.
References Cited (Backward Citations)
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US3765851A
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US3791957A
Cited
US3983027A
Cited
US4028220A
Cited
US4030893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |