US3158565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking a poisoned hydrocarbon feedstock
Assignee: Sinclair Research Inc
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Filing: 1962-03-16
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Granted: 1964-11-24
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Expires: 1982-03-16
Abstract
No abstract record available.
Inventors
- 👤 Robert A Sanford
- 👤 Earl C Gossett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:11
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; Y; Y10; Y10S; Y10S502/00; Y10S502/515; Y10S502/516
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD FOR PRODUCING GASOLINE IN A HYDROCARBON CRACKING SYSTEM CONSISTING ESSENTIALLY OF A CATALYTIC CRACKING ZONE AND A CATALYST REGENERATION ZONE BETWEEN WHICH CATALYST IS CYCLED, WHICH CONSISTS ESSENTIALLY OF CRACKING AT ELEVATED TEMPERATURE IN SAID CRACKING ZONE, A HYDROCARBON FEEDSTOCK HEAVIER THAN GASOLINE AND CONTAINING MORE THAN ABOUT 0.3 P.P.M. NICKEL IMPURITIES, WITH A CALCINED CATALYST CONSISTING ESSENTIALLY OF ABOUT 10 TO 65% TOTAL ALUMINA PREPARED BY THE ADDITION OF ABOUT 3 TO 100 PARTS BY WEIGHT OF A SYNTHETIC ALUMINA HYDRATE GEL TO 100 PARTS OF A SOLID SILICA-ALUMINA SUBSTRATE HAVING PARTICLES GREATER THAN COLLOIDAL IN SIZE.
Claim 2
Independent Claim
100 words
A METHOD FOR PRODUCING GASOLINE IN A HYDROCARBON CRACKING SYSTEM CONSISTING ESSENTIALLY OF A CATALYTIC CRACKING ZONE AND A CATALYST REGENERATION ZONE BETWEEN WHICH CATALYST IS CYCLED, WHICH CONSISTS ESSENTIALLY OF CRACKING AT ELEVATED TEMPERATURE IN SAID CRACKING ZONE, A HYDROCARBON FEEDSTOCK HEAVIER THAN GASOLINE AND CONTAINING MORE THAN ABOUT 0.3 P.P.M. NICKEL IMPURITIES, WITH A CALCINED CATALYST CONSISTING ESSENTIALLY OF ABOUT 10 TO 65% TOTAL ALUMINA PREPARED BY THE ADDITION OF ABOUT 3 TO 100 PARTS BY WEIGHT OF A SYNTHETIC ALUMINA HYDRATE GEL TO 100 PARTS OF A SOLID SILICA-ALUMINA SUBSTRATE HAVING PARTICLES GREATER THAN COLLOIDAL IN SIZE.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |