US3197399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking catalyst activation
Assignee: UNION OIL Co OF CALIFORNA
•
Filing: 1962-10-15
•
Granted: 1965-07-27
•
Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Carlyle G Wight
- 👤 Robert H Hass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:43
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G47/18; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064; B01J29/068
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
A METHOD FOR ACTIVATING A FRESH CATALYST COMPRISING A CRYSTALLINE ZEOLITIC MOLECULAR SIEVE CRACKING BASE AND A GROUP VIII NOBLE METAL HYDROGENATING COMPONENT, SAID CATALYST BEING SUBSTANTIALLYF REE OF CARBONACEOUS DEPOSITS, AND HAVING BEEN PREPARED BY TREATING SAID MOLECULAR SIEVE CRACKING BASE WITH AN AQUEOUS SOLUTION OF A SALT OF SAID NOBLE METAL FOLLOWED BY A DRYING AND CALCINING PROCEDURE WHEREIN TEMPERATURES ABOVE ABOUT 200* F. ARE ATTAINED BEFORE COMPLETE DRYING OF THE CATALYST HAS OCCURRED, THEREBY RESULTING IN A PARTIALLY DEACTIVATED CATALYST, WHICH COMPRISES SUBJECTING SAID CATALYST, INITIALLY IN AN OXIDIZED STATE, TO A REDUCTION-OXIDATION TREATMENT SEQUENCE WHEREIN THE CATALYST IS FIRST REDUCED WITH HYDROGEN AND THEN OXIDIZED WITH AN OXYGEN-CONTAINING GAS AT A TEMPERATURE BETWEEN ABOUT 400* AND 1,200*F., AND REPEATING SAID OXIDATION-REDUCTION SEQUENCE AT LEAST ONCE AGAIN.
Claim 2
Independent Claim
130 words
A METHOD FOR ACTIVATING A FRESH CATALYST COMPRISING A CRYSTALLINE ZEOLITIC MOLECULAR SIEVE CRACKING BASE AND A GROUP VIII NOBLE METAL HYDROGENATING COMPONENT, SAID CATALYST BEING SUBSTANTIALLYF REE OF CARBONACEOUS DEPOSITS, AND HAVING BEEN PREPARED BY TREATING SAID MOLECULAR SIEVE CRACKING BASE WITH AN AQUEOUS SOLUTION OF A SALT OF SAID NOBLE METAL FOLLOWED BY A DRYING AND CALCINING PROCEDURE WHEREIN TEMPERATURES ABOVE ABOUT 200* F. ARE ATTAINED BEFORE COMPLETE DRYING OF THE CATALYST HAS OCCURRED, THEREBY RESULTING IN A PARTIALLY DEACTIVATED CATALYST, WHICH COMPRISES SUBJECTING SAID CATALYST, INITIALLY IN AN OXIDIZED STATE, TO A REDUCTION-OXIDATION TREATMENT SEQUENCE WHEREIN THE CATALYST IS FIRST REDUCED WITH HYDROGEN AND THEN OXIDIZED WITH AN OXYGEN-CONTAINING GAS AT A TEMPERATURE BETWEEN ABOUT 400* AND 1,200*F., AND REPEATING SAID OXIDATION-REDUCTION SEQUENCE AT LEAST ONCE AGAIN.
Claim 3
Dependent Claim
41 words
A PROCESS FOR HYDROCRACKING A HIGH-BOILING HYDROCARBON FEEDSTOCK TO PRODUCE LOWER BOILING HYDROCARBONS, WHICH COMPRISES SUBJECTING SAID FEEDSTOCK PLUS ADDED HYDROGEN TO HYDROCRACKING CONDITIONS OF PRESSURE AND TEMPERATURE IN CONTACT WITH A CATALYST COMPOSED AND ACTIVATED AS DEFINED IN CLAIM 11.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |