US4400177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuels and methods for their production
Assignee: Individual
•
Filing: 1982-01-25
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Granted: 1983-08-23
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Expires: 2002-01-25
Abstract
Abstract A stable fuel emulsion comprising water, coal and an oil component comprising a distillate oil and a residual oil stabilizing ingredient. The stable fuel is produced by forming a water/coal slurry, blending the distillate oil and stabilizing residual oil together, combining the slurry and oil blend and agitating the mixture. Further, a stable fuel emulsion comprising essentially only water and oil wherein the oil is comprised of a distillate oil component and a residual oil stabilizing ingredient. The stable fuel is produced by blending the distillate oil and the stabilizing residual oil together, combining the resulting blend with water and agitating the mixture.
Inventors
- 👤 Eric C. Cottell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:37
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/324
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
38 words
A stable fuel emulsion comprising coal, distillate oil, greater than 3 weight percent water, and a stabilizing ingredient selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof.
Claim 2
Dependent Claim
38 words
A stable fuel emulsion comprising coal, distillate oil, greater than 3 weight percent water, and a stabilizing ingredient selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof.
Claim 3
Dependent Claim
24 words
The stable fuel emulsion of claim 1 wherein said stabilizing ingredient comprises between about 1% and about 30% by weight of said distillate oil.
Claim 4
Dependent Claim
15 words
The stable fuel emulsion of claim 1, wherein said water comprises about 20 weight percent.
Claim 5
Dependent Claim
52 words
The stable fuel emulsion of claim 1 wherein: said water comprises about 20 weight percent of the emulsion; said coal comprises about 50 weight percent of the emulsion; said distillate oil component comprises about 25 weight percent of the emulsion; and, said stabilizing ingredient comprises about 5 weight percent of the emulsion.
Claim 6
Independent Claim
116 words
A method of producing a stable fuel emulsion of coal, oil and water, the method comprising the steps of: forming a slurry of water and coal, the water being greater than 3 weight percent of the slurry; blending a stabilizing ingredient consisting of a residual oil component selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof with a distillate oil component, the residual oil component being between about 1% and about 30% by weight of the distillate oil component; combining the slurry of coal and water with the blended oil components; and, subjecting the resulting coal/oil/water mixture to agitation to form said stable fuel emulsion.
Claim 7
Independent Claim
116 words
A method of producing a stable fuel emulsion of coal, oil and water, the method comprising the steps of: forming a slurry of water and coal, the water being greater than 3 weight percent of the slurry; blending a stabilizing ingredient consisting of a residual oil component selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof with a distillate oil component, the residual oil component being between about 1% and about 30% by weight of the distillate oil component; combining the slurry of coal and water with the blended oil components; and, subjecting the resulting coal/oil/water mixture to agitation to form said stable fuel emulsion.
Claim 8
Dependent Claim
19 words
The method of claim 5 wherein the agitation of the resulting coal/oil/water mixture is sufficient to cause cavitation thereof.
Claim 9
Dependent Claim
34 words
A stable fuel emulsion comprising essentially only distillate oil, water, and a stabilizing ingredient selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof.
Claim 10
Dependent Claim
34 words
A stable fuel emulsion comprising essentially only distillate oil, water, and a stabilizing ingredient selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof.
Claim 11
Dependent Claim
19 words
The stable fuel emulsion of claim 7, wherein said water comprises less than 15 weight percent of the emulsion.
Claim 12
Dependent Claim
26 words
The stable fuel emulsion of claim 7, wherein said stabilizing ingredient component comprises between about 1% and about 30% by weight of said distillate oil component.
Claim 13
Dependent Claim
16 words
The stable fuel emulsion of claim 7, wherein said distillate oil is No. 2 distillate oil.
Claim 14
Independent Claim
82 words
A method of producing a stable fuel emulsion consisting essentially only of oil and water, the method comprising the steps of: blending a stabilizing ingredient consisting of a residual oil component selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof with a distillate oil component to form a blend of these oils; combining the resulting blend of oils with water; and, agitating the water/oil combination to form the stable fuel emulsion.
Claim 15
Independent Claim
82 words
A method of producing a stable fuel emulsion consisting essentially only of oil and water, the method comprising the steps of: blending a stabilizing ingredient consisting of a residual oil component selected from the group consisting of No. 4 residual oil, No. 6 residual oil, other residual oils and combinations thereof with a distillate oil component to form a blend of these oils; combining the resulting blend of oils with water; and, agitating the water/oil combination to form the stable fuel emulsion.
Claim 16
Dependent Claim
17 words
The method of claim 11, wherein the agitation of the water/oil combination is sufficient to cause cavitation.
References Cited (Backward Citations)
US1390232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |