US4145188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefaction of solid organic wastes
Assignee: Mobil Oil AS
•
Filing: 1976-11-22
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Granted: 1979-03-20
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Expires: 1996-11-22
Abstract
Abstract This invention provides a method for solubilizing municipal refuse and other solid organic wastes in a highly aromatic refinery petroleum solvent to produce a homogeneous heavy oil or bitumen composition.
Inventors
- 👤 Wilton F. Espenscheid
- 👤 Tsoung Y. Yan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:04
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
A process for liquefaction of solid carbohydrate waste material without the use of high pressures or reducing gases or catalysts which comprises forming a slurry by admixing comminuted carbohydrate waste with a highly aromatic refinery petroleum residuum solvent having a boiling point between about 450° F. and 1100° F., wherein said petroleum residuum solvent has a hydrogen content distribution in which the H Ar proton content is between about 30 and 50 percent, the H.sub.α proton content is at least 30 percent and the H.sub.α /H.sub.β proton ratio is above about 1.4, and heating said slurry at a temperature in the range between about 350° F. and 850° F. for a period of time sufficient to convert the slurry into a homogeneous hydrocarbonaceous composition which has a flowable heavy oil or bitumen consistency at 25° C.
Claim 2
Dependent Claim
136 words
A process for liquefaction of solid carbohydrate waste material without the use of high pressures or reducing gases or catalysts which comprises forming a slurry by admixing comminuted carbohydrate waste with a highly aromatic refinery petroleum residuum solvent having a boiling point between about 450° F. and 1100° F., wherein said petroleum residuum solvent has a hydrogen content distribution in which the H Ar proton content is between about 30 and 50 percent, the H.sub.α proton content is at least 30 percent and the H.sub.α /H.sub.β proton ratio is above about 1.4, and heating said slurry at a temperature in the range between about 350° F. and 850° F. for a period of time sufficient to convert the slurry into a homogeneous hydrocarbonaceous composition which has a flowable heavy oil or bitumen consistency at 25° C.
Claim 3
Dependent Claim
35 words
A process in accordance with claim 1 wherein the petroleum residuum solvent is provided in a quantity between about 0.5 and 10 parts by weight per part by weight of the comminuted carbohydrate waste material.
Claim 4
Dependent Claim
18 words
A process in accordance with claim 1 wherein the petroleum residuum solvent is a FCC main column bottoms.
Claim 5
Dependent Claim
17 words
A process in accordance with claim 1 wherein the petroleum residuum solvent is a TCC syntower bottoms.
Claim 6
Dependent Claim
15 words
A process in accordance with claim 1 wherein the solid carbohydrate waste is municipal refuse.
Claim 7
Dependent Claim
16 words
A process in accordance with claim 1 wherein the solid carbohydrate waste is municipal sewage sludge.
Claim 8
Dependent Claim
16 words
A process in accordance with claim 1 wherein the solid carbohydrate waste is agricultural cellulosic byproduct.
Claim 9
Dependent Claim
16 words
A process in accordance with claim 1 wherein the solid carbohydrate waste is newsprint and cardboard.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |