US3147209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst demetallization
Assignee: Sinclair Research Inc
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Filing: 1960-09-12
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Granted: 1964-09-01
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 Erickson Henry
- 👤 Howard G Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:58
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/20; Y; Y10; Y10S; Y10S502/00; Y10S502/515; Y10S502/516
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A METHOD FOR PRODUCING GASOLINE IN A HYDROCARBON CRACKING SYSTEM HAVING A CATALYTIC CRACKING ZONE AND A CATALYST REGENERATION ZONE WHICH COMPRISES CRACKING AT ELEVATED TEMPERATURE IN SAID CRACKING ZONE A HYDROCARBON FEEDSTOCK HEAVIER THAN GASOLINE AND CONTAINING NICKEL CONTAMINANT, SAID CRACKING BEING CONDUCTED IN THE PRESENCE OF A SYNTHETIC GEL, SILICA-BASED HYDROCARBON CRACKING CATALYST AND DURING WHICH CRACKING THE CATALYST BECOMES CONTAMINATED WITH NICKEL OF SAID HYDROCARBON FEEDSTOCK, CYCLING THE CATALYST BETWEEN THE CRACKING ZONE AND THE CATALYST REGENERATION ZONE IN WHICH LATTER ZONE CARBONIS REMOVED FROM THE CATALYST, BLEEDING A PORTION OF THE NICKEL CONTAMINATED CATALYST FROM THE CRACKING SYSTEM, SULFIDING SAID NICKEL CONTAMINATED CATALYST BY CONTACTING BLED CATALYST AT A TEMPERATURE OF ABOUT 500 TO 1600*F. WITH A VAPOROUS SULFIDING AGENT, CONVERTING NICKEL CONTAMINANTS TO A FORM DISPERSIBLE IN AN ESSENTIALLY AQUEOUS MEDIUM BY CONTACT OF THE SULFIDED CATALYST AT A TEMPERATURE OF ABOUT 220 TO 1150*F. WITH A MIXTURE OF STEAM AND MOLECULAR OXYGEN-CONTAINING GAS CONTAINING AT LEAST ABOUT 50% AND ABOUT 0.01 TO 10% OXYGEN, WASHING THE CATALYST WITH AN ESSENTIALLY AQUEOUS MEDIUM TO REMOVE NICKEL CONTAMINANT AND RETURNING TO A CRACKING SYSTEM CATALYST REDUCED IN NICKEL CONTLAMINANT.
Claim 2
Independent Claim
193 words
A METHOD FOR PRODUCING GASOLINE IN A HYDROCARBON CRACKING SYSTEM HAVING A CATALYTIC CRACKING ZONE AND A CATALYST REGENERATION ZONE WHICH COMPRISES CRACKING AT ELEVATED TEMPERATURE IN SAID CRACKING ZONE A HYDROCARBON FEEDSTOCK HEAVIER THAN GASOLINE AND CONTAINING NICKEL CONTAMINANT, SAID CRACKING BEING CONDUCTED IN THE PRESENCE OF A SYNTHETIC GEL, SILICA-BASED HYDROCARBON CRACKING CATALYST AND DURING WHICH CRACKING THE CATALYST BECOMES CONTAMINATED WITH NICKEL OF SAID HYDROCARBON FEEDSTOCK, CYCLING THE CATALYST BETWEEN THE CRACKING ZONE AND THE CATALYST REGENERATION ZONE IN WHICH LATTER ZONE CARBONIS REMOVED FROM THE CATALYST, BLEEDING A PORTION OF THE NICKEL CONTAMINATED CATALYST FROM THE CRACKING SYSTEM, SULFIDING SAID NICKEL CONTAMINATED CATALYST BY CONTACTING BLED CATALYST AT A TEMPERATURE OF ABOUT 500 TO 1600*F. WITH A VAPOROUS SULFIDING AGENT, CONVERTING NICKEL CONTAMINANTS TO A FORM DISPERSIBLE IN AN ESSENTIALLY AQUEOUS MEDIUM BY CONTACT OF THE SULFIDED CATALYST AT A TEMPERATURE OF ABOUT 220 TO 1150*F. WITH A MIXTURE OF STEAM AND MOLECULAR OXYGEN-CONTAINING GAS CONTAINING AT LEAST ABOUT 50% AND ABOUT 0.01 TO 10% OXYGEN, WASHING THE CATALYST WITH AN ESSENTIALLY AQUEOUS MEDIUM TO REMOVE NICKEL CONTAMINANT AND RETURNING TO A CRACKING SYSTEM CATALYST REDUCED IN NICKEL CONTLAMINANT.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |