Patent US2903416A successfully refreshed from Google Patents.
US2903416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer line chemicals coking process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-06-26
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Granted: 1959-09-08
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Expires: 1976-06-26
Abstract
No abstract record available.
Inventors
- 👤 Metrailer William Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:43
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A COKING PROCESS FOR CONVERTING HEAVY HYDROCARBON OILS BOILING PREDOMINANTLY ABOVE 900*F. TO LIGHTER HYDROCARBON PRODUCTS BY CONTACT WITH A DISPERSED SUSPENSION OF PARTICULATE SOLIDS AT A COKING TEMPERATURE IN THE RANGE OF 1200* TO 1600*F. IN A TRANSFER LINE REACTION ZONE, THE IMPROVEMENT WHICH COMPRISES MIXING SAID OIL IN AN AMOUNT IN THE RANGE OF 0.1 TO 0.4 LB./LB. WITH FLOWING PARTICULATE SOLIDS RECOVERED FROM THE TRANSFER LINE REACTION ZONE EFFLUENT TO FORM A DENSE PAHSE SUSPENSION IN A RISER, THE TEMPERATURE OF THE RESULTING MIXTURE BEING FROM 50* TO 500*F. BELOW SAID COKING TEMPERATURE IN SAID TRANSFER LINE REACTION ZONE, AND THEREAFER ADDING FRESHLY HEATED SOLIDS HAVING A TEMPERATURE ABOVE 1300*F. TO SAID MIXTURE WITHOUT SEPARATING SAID INITIALLY
Claim 2
Dependent Claim
121 words
IN A COKING PROCESS FOR CONVERTING HEAVY HYDROCARBON OILS BOILING PREDOMINANTLY ABOVE 900*F. TO LIGHTER HYDROCARBON PRODUCTS BY CONTACT WITH A DISPERSED SUSPENSION OF PARTICULATE SOLIDS AT A COKING TEMPERATURE IN THE RANGE OF 1200* TO 1600*F. IN A TRANSFER LINE REACTION ZONE, THE IMPROVEMENT WHICH COMPRISES MIXING SAID OIL IN AN AMOUNT IN THE RANGE OF 0.1 TO 0.4 LB./LB. WITH FLOWING PARTICULATE SOLIDS RECOVERED FROM THE TRANSFER LINE REACTION ZONE EFFLUENT TO FORM A DENSE PAHSE SUSPENSION IN A RISER, THE TEMPERATURE OF THE RESULTING MIXTURE BEING FROM 50* TO 500*F. BELOW SAID COKING TEMPERATURE IN SAID TRANSFER LINE REACTION ZONE, AND THEREAFER ADDING FRESHLY HEATED SOLIDS HAVING A TEMPERATURE ABOVE 1300*F. TO SAID MIXTURE WITHOUT SEPARATING SAID INITIALLY
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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |