US2768939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated fluid coke desulfurization process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-09-13
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Granted: 1956-10-30
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Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Mason
- 👤 Jr Charles N Kimberlin
- 👤 Jr William F Arey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:21
CPC Classifications
C; C10; C10L; C10L9/00; C10L9/02; C10L9/04; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A PROCESS FOR COKING A HEARY PETROLEUM OIL CONTAINING A HIGH CONCENTRATION OF SULFUR WHICH COMPRISES THE STEPS OF CONTACTING THE HEAVY PETROLEUM OIL COKING CHARGE STOCK AT A COKING TEMPERATURE WITH A DENSE, TURBULENT, FLUIDIZED BED OF COKE PARTICLES MAINTAINED IN A COKING REACTION ZONE, WHEREIN THE OIL IS CONVERTED TO PRODUCT VAPORS AND CARBONACEOUS SOLIDS ARE CONTINUOUSLY DEPOSITED ON THE COKE PARTICLES; REMOVING PRODUCT VAPORS FROM THE COKING ZONE; WITHDRAWING THE COKE PARTICLES FROM THE COKING ZONE; CONTACTING THE HOT CIRCULATING COKE WITH HYDROGEN IN A TREATING ZONE AT A TEMPERATURE IN THE RANGE OF 1200 TO 1400* F. TO REMOVE SULFUR THEREFROM; HEATING A PORTION OF THE HYDROGEN TREATED CIRCULATING COKE PARTICLES REMOVED FROM THE COKING ZONE IN A SEPARATE HEATING ZONE TO INCREASE THE TEMPERATURE OF SAID PARTICLES AND RETURNING A PORTION OF THE CIRCULATING HEATED COKE PARTICLES FROM THE HEATING ZONE TO THE COKING ZONE TO SUPPLY HEAT THERETO.
Claim 2
Dependent Claim
154 words
A PROCESS FOR COKING A HEARY PETROLEUM OIL CONTAINING A HIGH CONCENTRATION OF SULFUR WHICH COMPRISES THE STEPS OF CONTACTING THE HEAVY PETROLEUM OIL COKING CHARGE STOCK AT A COKING TEMPERATURE WITH A DENSE, TURBULENT, FLUIDIZED BED OF COKE PARTICLES MAINTAINED IN A COKING REACTION ZONE, WHEREIN THE OIL IS CONVERTED TO PRODUCT VAPORS AND CARBONACEOUS SOLIDS ARE CONTINUOUSLY DEPOSITED ON THE COKE PARTICLES; REMOVING PRODUCT VAPORS FROM THE COKING ZONE; WITHDRAWING THE COKE PARTICLES FROM THE COKING ZONE; CONTACTING THE HOT CIRCULATING COKE WITH HYDROGEN IN A TREATING ZONE AT A TEMPERATURE IN THE RANGE OF 1200 TO 1400* F. TO REMOVE SULFUR THEREFROM; HEATING A PORTION OF THE HYDROGEN TREATED CIRCULATING COKE PARTICLES REMOVED FROM THE COKING ZONE IN A SEPARATE HEATING ZONE TO INCREASE THE TEMPERATURE OF SAID PARTICLES AND RETURNING A PORTION OF THE CIRCULATING HEATED COKE PARTICLES FROM THE HEATING ZONE TO THE COKING ZONE TO SUPPLY HEAT THERETO.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |