US3109803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing substantially ash-free bituminous coal, subbituminous coal andlignite
Assignee: Lummus Technology LLC
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Filing: 1959-08-03
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Granted: 1963-11-05
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Ward J Bloomer
- 👤 Beverly B Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
C; C10; C10B; C10B57/00; C10B57/04; C10B55/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF PRODUCING SUBSTANTIALLY ASH-FREE COKE AND VALUABLE CONSTITUENTS FROM A DE-ASHED SOLUTION OF CARBONACEOUS MATTER PREPARED FROM A COAL SELECTED FROM THE GROUP CONSISTING OF BITUMINOUS COAL, SUB-BITUMINOUS COAL AND LIGNITE IN A HIGH BOILING POINT HYDROCARBON SOLVENT OF HIGH AROMATICITY HAVING AN INITIAL BOILING TEMPERATURE OF ABOVE ABOUT 750*F. FROM WHICH SOLUTION SUBSTANTIALLY ALL SUSPENDED MINERAL MATTER, FUSAIN AND SULFUR HAS BEEN REMOVED WHICH COMPRISES: HEATING OF ALL SAID SOLUTION TO A TEMPERATURE OF FROM ABOUT 850* TO 1050*F.; INTRODUCING SAID HEATED SOLUTION IN LIQUID STREAM INTO A REACTION ZONE WHEREIN ALL OF SAID SOLUTION IS THERMALLY DECOMPOSED INTO VAPOR AND ASH-FREE, FUSAINFREE AND SULFUR-FREE COKE; WITHDRAWING AS PRODUCT FROM SAID REACTION ZONE SAID SUBSTANTIALLY ASH-FREE COKE; WITHDRAWING SAID VAPOR FROM SAID REACTION ZONE AND INTRODUCING SAID VAPORS INTO A FRACTIONATING ZONE; AND FRACTIONATING SAID VAPORS TO OBTAIN A HEAVY DISTILLATE FRACTION HAVING
Claim 2
Independent Claim
146 words
A METHOD OF PRODUCING SUBSTANTIALLY ASH-FREE COKE AND VALUABLE CONSTITUENTS FROM A DE-ASHED SOLUTION OF CARBONACEOUS MATTER PREPARED FROM A COAL SELECTED FROM THE GROUP CONSISTING OF BITUMINOUS COAL, SUB-BITUMINOUS COAL AND LIGNITE IN A HIGH BOILING POINT HYDROCARBON SOLVENT OF HIGH AROMATICITY HAVING AN INITIAL BOILING TEMPERATURE OF ABOVE ABOUT 750*F. FROM WHICH SOLUTION SUBSTANTIALLY ALL SUSPENDED MINERAL MATTER, FUSAIN AND SULFUR HAS BEEN REMOVED WHICH COMPRISES: HEATING OF ALL SAID SOLUTION TO A TEMPERATURE OF FROM ABOUT 850* TO 1050*F.; INTRODUCING SAID HEATED SOLUTION IN LIQUID STREAM INTO A REACTION ZONE WHEREIN ALL OF SAID SOLUTION IS THERMALLY DECOMPOSED INTO VAPOR AND ASH-FREE, FUSAINFREE AND SULFUR-FREE COKE; WITHDRAWING AS PRODUCT FROM SAID REACTION ZONE SAID SUBSTANTIALLY ASH-FREE COKE; WITHDRAWING SAID VAPOR FROM SAID REACTION ZONE AND INTRODUCING SAID VAPORS INTO A FRACTIONATING ZONE; AND FRACTIONATING SAID VAPORS TO OBTAIN A HEAVY DISTILLATE FRACTION HAVING
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |