Patent US2750330A successfully refreshed from Google Patents.
US2750330A
Expired / Lapsed
US
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Process of carbonizing coal
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1949-06-20
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Granted: 1956-06-12
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Expires: 1969-06-20
Abstract
No abstract record available.
Inventors
- 👤 Karl J Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:01
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/38; B01J8/384; B01J8/388; C; C10; C10B; C10B49/00; C10B49/16; C10B49/20; C10B49/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
THE METHOD OF DISTILLING AGGLOMERATIVE HYDROCARBONACEOUS SOLIDS WHICH COMPRISES CIRCULATING A STREAM OF GAS THROUGH A CONFINED MASS OF FINELY DIVIDED CARBONACEOUS SOLIDS UNDER FLUIDIZING CONDITIONS, HEATING SAID MASS TO A TEMPERATURE SUFFICIENTLY HIGH TO EFFECT DISTILLATION OF SAID AGGLOMERATIVE SOLIDS, CONTINUOUSLY WITHDRAWING A PORTION OF SAID CONFINED MASS TO A POSITION EXTERIOR THEREOF, INJECTING A GAS-SOLIDS SUSPENSION CONSISTING OF FINELY DIVIDED FRESH AGGLOMERATIVE HYDROCARBONACEOUS SOLIDS SUSPENDED IN A SECOND STREAM OF GAS INTO SAID WITHDRAWN PORTION AT SAID EXTERIOR POSITION, THE VELOCITY OF SAID SECOND STREAM OF GAS BEING ADEQUATE TO CREATE STRONG TURBULENCE, CIRCULATING A COOLING MEDIUM IN HEAT EXCHANGE RELATION WITH SAID SUSPENSION OF FRESH SOLIDS TO COOL SAID SUSPENSION TO A TEMPERATURE BELOW THE AGGLOMERATING TEMPERATURE OF SAID SOLIDS UNTIL THE POINT OF INJECTION IS REACHED, RETURNING THE MIXTURE SO FORMED TO THE CONFINED MASS IN THE FORM OF A GASEOUS SUSPENSION AND RECOVERING THE PRODUCTS OF DISTILLATION
Claim 2
Independent Claim
152 words
THE METHOD OF DISTILLING AGGLOMERATIVE HYDROCARBONACEOUS SOLIDS WHICH COMPRISES CIRCULATING A STREAM OF GAS THROUGH A CONFINED MASS OF FINELY DIVIDED CARBONACEOUS SOLIDS UNDER FLUIDIZING CONDITIONS, HEATING SAID MASS TO A TEMPERATURE SUFFICIENTLY HIGH TO EFFECT DISTILLATION OF SAID AGGLOMERATIVE SOLIDS, CONTINUOUSLY WITHDRAWING A PORTION OF SAID CONFINED MASS TO A POSITION EXTERIOR THEREOF, INJECTING A GAS-SOLIDS SUSPENSION CONSISTING OF FINELY DIVIDED FRESH AGGLOMERATIVE HYDROCARBONACEOUS SOLIDS SUSPENDED IN A SECOND STREAM OF GAS INTO SAID WITHDRAWN PORTION AT SAID EXTERIOR POSITION, THE VELOCITY OF SAID SECOND STREAM OF GAS BEING ADEQUATE TO CREATE STRONG TURBULENCE, CIRCULATING A COOLING MEDIUM IN HEAT EXCHANGE RELATION WITH SAID SUSPENSION OF FRESH SOLIDS TO COOL SAID SUSPENSION TO A TEMPERATURE BELOW THE AGGLOMERATING TEMPERATURE OF SAID SOLIDS UNTIL THE POINT OF INJECTION IS REACHED, RETURNING THE MIXTURE SO FORMED TO THE CONFINED MASS IN THE FORM OF A GASEOUS SUSPENSION AND RECOVERING THE PRODUCTS OF DISTILLATION
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |