US4247384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefaction of carbonaceous materials
Assignee: Mobil Oil AS
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Filing: 1979-03-15
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Granted: 1981-01-27
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Expires: 1999-03-15
Abstract
Abstract Improved method for solubilizing solid carbonaceous materials, e.g., wood and/or coal in an aromatic petroleum or coal-derived solvent in the presence of alkali and hydrogen transfer agent at elevated temperatures. The liquid products can be used as fuels or further processed into desirable products.
Inventors
- 👤 Nai Y. Chen
- 👤 Dennis E. Walsh
- 👤 Tsoung Y. Yan
- 👤 Darrell D. Whitehurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:49
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/08; C10G1/083
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
61 words
A process for the conversion of solid carbonaceous material to a hydrocarbon-rich product which comprises: (a) slurrying said material in a thermally stable aromatic petroleum or coal-derived solvent, and (b) heating said slurry at elevated temperature in the presence of a hydrogen donor and alkali and in the absence of added carbon monoxide and added water to evolve carbon oxides therefrom.
Claim 2
Dependent Claim
61 words
A process for the conversion of solid carbonaceous material to a hydrocarbon-rich product which comprises: (a) slurrying said material in a thermally stable aromatic petroleum or coal-derived solvent, and (b) heating said slurry at elevated temperature in the presence of a hydrogen donor and alkali and in the absence of added carbon monoxide and added water to evolve carbon oxides therefrom.
Claim 3
Dependent Claim
33 words
The process according to claim 1 wherein said solvent is a thermally stable petroleum refinery FCC main column bottoms or TCC syntower bottoms having a boiling point between about 450° and 1100° F.
Claim 4
Dependent Claim
22 words
The process according to claim 1 wherein said solvent is a solvent-refined coal product having a boiling point above about 650° F.
Claim 5
Dependent Claim
12 words
The process according to claim 1 wherein said hydrogen donor comprises tetrahydronaphthalene.
Claim 6
Dependent Claim
16 words
The process according to claim 1 wherein said alkali comprises alkali or alkaline earth metal carbonates.
Claim 7
Dependent Claim
12 words
The process according to claim 1 wherein the alkali comprises sodium carbonate.
Claim 8
Dependent Claim
21 words
The process according to claim 1 wherein the temperature is in the range of from about 350° to about 1000° F.
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) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |