US3362902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the utilization of low heat value fuels
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1965-07-07
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Granted: 1968-01-09
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Expires: 1985-07-07
Abstract
No abstract record available.
Inventors
- 👤 John A Kivlen
- 👤 James F Harris
- 👤 Irving D Crane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:56
CPC Classifications
F; F22; F22B; F22B31/00; F22B21/00; F22B21/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
A PROCESS FOR GENERATING STEAM AND FOR PREHEATING HYDROCARBON OIL FOR CATALYTHIC CRACKING IN A CATALYTIC CRACKING UNIT COMPRISING A CRACKING UNIT AND A CRACKING CATALYST REGENERATOR UNIT COMPRISING THE STEPS OF PASSING REGENERATOR OFF GAS CONTAINING 5-15 VOLUME PERCENT CO FROM THE REGENERATOR TO A CO FURNACE AT A TEMPERATURE OF 400-700*F., MIXING FROM 30-70 PERCENT OF THE OFF GAS WITH PRODUCTS OF COMBUSTION OF A HIGH HEAT VALUE FUEL AT A TEMPERATURE OF 1150-1200*F. IN A FIRST STAGE, BURNING THE CO IN THE OFF GAS, MIXING THE FIRST STAGE COMBUSTION GASES WITH FROM 30-70 PERCENT OF THE OFF GAS IN A SECOND STAGE WHEREBY A COMBUSTION GAS STREAM HAVING A TEMPERATURE OF 1600-2200*F. IS PROVIDED, CONTACTING WATER AND HYDROCARBON OIL WITH THE COMBUSTION GAS
References Cited (Backward Citations)
US2436464A
Cited
US2976855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |