US3360481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst activation process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-06-03
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Granted: 1967-12-26
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Expires: 1984-06-03
Abstract
No abstract record available.
Inventors
- 👤 Mclaren Donald Danley
- 👤 Reichle Alfred Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:26
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR ACTIVATING A HYDROCRACKING CATALYST COMPRISING A CRYSTALLINE ALUMINO-SILICATE ZEOLITE COMPOSITED WITH A PLATINUM GROUP METAL COMPONEST WHICH COMPRISES INITIALLY CONTACTING SAID CATALYST, AT A TEMPERATURE UP TO ABOUT 300*F., WITH A SUBSTANTIALLY DRY GAS STREAM COMPRISING A MAJOR PROPORTION OF HYDROGEN UNTIL LESS THAN ABOUT 50 P.P.M. WATER IS DETECTED IN SAID STREAM AFTER IT HAS CONTACTED SAID CATALYST; AND SUBSEQUENTLY CONTACTING SAID CATALYST, AT ELEVATED PRESSURE AND A TEMPERATURE ABOVE ABOUT 300*F., WITH AN UNDRIED GAS STREAM COMPRISING A MAJOR PROPORTION OF HYDROGEN UNTIL ACTIVATION IS SUBSTANTIALLY COMPLETE.
Claim 2
Dependent Claim
92 words
A PROCESS FOR ACTIVATING A HYDROCRACKING CATALYST COMPRISING A CRYSTALLINE ALUMINO-SILICATE ZEOLITE COMPOSITED WITH A PLATINUM GROUP METAL COMPONEST WHICH COMPRISES INITIALLY CONTACTING SAID CATALYST, AT A TEMPERATURE UP TO ABOUT 300*F., WITH A SUBSTANTIALLY DRY GAS STREAM COMPRISING A MAJOR PROPORTION OF HYDROGEN UNTIL LESS THAN ABOUT 50 P.P.M. WATER IS DETECTED IN SAID STREAM AFTER IT HAS CONTACTED SAID CATALYST; AND SUBSEQUENTLY CONTACTING SAID CATALYST, AT ELEVATED PRESSURE AND A TEMPERATURE ABOVE ABOUT 300*F., WITH AN UNDRIED GAS STREAM COMPRISING A MAJOR PROPORTION OF HYDROGEN UNTIL ACTIVATION IS SUBSTANTIALLY COMPLETE.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |