Patent US2905615A successfully refreshed from Google Patents.
US2905615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preoxidizing feed to fuels coker
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-05-02
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Granted: 1959-09-22
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Expires: 1977-05-02
Abstract
No abstract record available.
Inventors
- 👤 Jr William Floyd Arey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:00
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN A PROCESS FOR COKING A HEAVY HYDROCARBON OIL CHARGE STOCK BY CONTACTING THE CHARGE STOCK AT A COKING TEMPERTURE WITH FLUIDIZED COKE PARTICULES IN A COKING ZONE AT A TEMPERATURE IN A RANGE OF 850* TO 1200* F. WHEREIN THE OIL IS CONVERTED TO PRODUCT VAPORS AND CARBONACEOUSA SOLIDS ARE CONTINUOUSLY DEPOSIT ON THE COKE PARTICLES; REMOVING PRODUCT VAPORS FROM THE COKING ZONE AND SENDING A PORTION OF THE COKE PARTICLES FROM THE COKING ZONE TO A HEATING ZONE TO INCREASE THE TEMPERATURE OF THE COKE PARTICLES AND RETURNING A PORTION OF THE HEATED COKE PARTICLES FROM THE HEATING ZONE TO THE COKING ZONE, THE IMPROVEMENT WHICH COMPRISES CONTACTING THE CHARGE STOCK IN THE LIQUID PHASE WITH AN OXYGEN CONTAINING GAS AT A TEMPERATURE BELOW ITS CRACKING TEMPERATURE AND ONE IN THE RANGE OF 100* TO 700* F. IN AN EXTRANCEOUS OXIDATION ZONE TO OXIDIZE THE CHARGE STOCK TO A MINIMUM COMBINED OXYGEN CONTENT OF 2.5 WT PERCENT AND THEN FEEDING THE OXIDIZED CHARGE STOCK FREE OF EXTRANEOUS OXYGEN CONTAINING GAS TO THE COKING ZONE WHEREBY INCREASED YIELDS OF VALUABLE PRODUCTS ARE PRODUCED.
Claim 2
Dependent Claim
184 words
IN A PROCESS FOR COKING A HEAVY HYDROCARBON OIL CHARGE STOCK BY CONTACTING THE CHARGE STOCK AT A COKING TEMPERTURE WITH FLUIDIZED COKE PARTICULES IN A COKING ZONE AT A TEMPERATURE IN A RANGE OF 850* TO 1200* F. WHEREIN THE OIL IS CONVERTED TO PRODUCT VAPORS AND CARBONACEOUSA SOLIDS ARE CONTINUOUSLY DEPOSIT ON THE COKE PARTICLES; REMOVING PRODUCT VAPORS FROM THE COKING ZONE AND SENDING A PORTION OF THE COKE PARTICLES FROM THE COKING ZONE TO A HEATING ZONE TO INCREASE THE TEMPERATURE OF THE COKE PARTICLES AND RETURNING A PORTION OF THE HEATED COKE PARTICLES FROM THE HEATING ZONE TO THE COKING ZONE, THE IMPROVEMENT WHICH COMPRISES CONTACTING THE CHARGE STOCK IN THE LIQUID PHASE WITH AN OXYGEN CONTAINING GAS AT A TEMPERATURE BELOW ITS CRACKING TEMPERATURE AND ONE IN THE RANGE OF 100* TO 700* F. IN AN EXTRANCEOUS OXIDATION ZONE TO OXIDIZE THE CHARGE STOCK TO A MINIMUM COMBINED OXYGEN CONTENT OF 2.5 WT PERCENT AND THEN FEEDING THE OXIDIZED CHARGE STOCK FREE OF EXTRANEOUS OXYGEN CONTAINING GAS TO THE COKING ZONE WHEREBY INCREASED YIELDS OF VALUABLE PRODUCTS ARE PRODUCED.
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |