US4133647A
Expired / Lapsed
US
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Method for pelletizing carbonaceous solids
Assignee: C0NSOLIDATION COAL Co
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Filing: 1977-09-22
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Granted: 1979-01-09
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Expires: 1997-09-22
Abstract
Abstract An improved method for agglomerating finely divided carbonaceous solids is disclosed. The method comprises mixing the solids with oil having a softening point above about 100° C in an aqueous medium at a temperature above about 120° C and at a pressure greater than about 1000 mm Hg.
Inventors
- 👤 Francis P. Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:32
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
In a method for agglomerating finely divided carbonaceous solids by mixing said solids with a binder in an aqueous medium the improvement comprising mixing said solids with said binder at a temperature above about 120° C. at a pressure greater than about 1000 mm Hg, said binder consisting essentially of an oil having a softening point above about 100° C.
Claim 2
Dependent Claim
60 words
In a method for agglomerating finely divided carbonaceous solids by mixing said solids with a binder in an aqueous medium the improvement comprising mixing said solids with said binder at a temperature above about 120° C. at a pressure greater than about 1000 mm Hg, said binder consisting essentially of an oil having a softening point above about 100° C.
Claim 3
Dependent Claim
43 words
The improvement of claim 1 wherein said oil has a softening point from about 100 to about 330° C. and wherein said temperature is from about 120 to about 350° C. and said pressure is from about 1000 to about 125,000 mm Hg.
Claim 4
Dependent Claim
19 words
The improvement of claim 2 wherein said oil has a softening point from about 150 to about 250° C.
Claim 5
Dependent Claim
30 words
The improvement of claim 1 wherein said oil is present in an amount equal to from about 10 to about 40 weight percent based on the weight of said solids.
Claim 6
Dependent Claim
23 words
The improvement of claim 4 wherein said oil is present in an amount equal to from about 20 to about 30 weight percent.
Claim 7
Dependent Claim
16 words
The improvement of claim 1 wherein said solids are of a size less than 48 mesh.
Claim 8
Dependent Claim
12 words
The improvement of claim 1 wherein said solids are petroleum coke fines.
Claim 9
Dependent Claim
21 words
The improvement of claim 7 wherein said oil is a coking stock suitable as a charge to a coking feed drum.
Claim 10
Dependent Claim
11 words
The improvement of claim 1 wherein oil is derived from coal.
Claim 11
Dependent Claim
12 words
The improvement of claim 9 wherein said oil contains finely divided solids.
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) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |