US3226316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coking of hydrocarbons with the removal of metallic contaminants from the coke
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-06-05
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Granted: 1965-12-28
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Expires: 1982-06-05
Abstract
No abstract record available.
Inventors
- 👤 Metrailer William Joseph
- 👤 Jr John Frederick Moser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:31
CPC Classifications
C; C10; C10L; C10L9/00; C10L9/02; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
IN A METHOD OF COKING HEAVY PETROLEUM OILS TO PRODUCE COKE CONTAINING METAL IMPURITIES AND LOWER BOILING HYDROCARBONS WHEREIN THE OIL IS CRACKED IN A COKING REACTION ZONE AND COKE PARTICLES ARE PARTIALLY BURNED IN A BURNER ZONE AND RECYCLED TO SAID COKING REACTION ZONE TO SUPPLY THE HEAT OF CRACKING, THE IMPROVEMENT WHICH COMPRISES WITHDRAWING A PORTION OF THE COKE PARTICLES FROM SAID REACTOR ZONE AND PASSING THEM TO A SEPARATE CONFINED TREATING ZONE TO BURN AT LEAST A PORTION OF THE COKE PARTICLES IN THE PRESENCE OF HALOGEN-CONTAINING MATERIAL AND TO FORM VOLATILE METAL HALIDE COMPOUNDS AND RECOVERING, AS A PRODUCT COKE PARTICLES WITH A REDUCED METAL IMPURITY CONTENT.
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |