US3048536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking process with reduction in aging of catalyst by intermittent treatment with hydrogen
Assignee: ExxonMobil Oil Corp
•
Filing: 1958-07-21
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Granted: 1962-08-07
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Expires: 1978-07-21
Abstract
No abstract record available.
Inventors
- 👤 Harry L Coonradt
- 👤 Wilbur K Leaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:37
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A HYDROCRACKING PROCESS WHICH COMPRISES ADDING TO A HYDROCRACKING CHARGE STOCK A SUFFICIENT AMOUNT OF A COMPOUND, SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND A NITROGEN COMPOUND DECOMPOSABLE TO AMMONIA, UNDER THE PROCESS TEMPERATURE CONDITIONS TO ADJUST THE NITROGEN CONTENT OF SAID CHARGE STOCK WITHIN THE APPROXIMATE RANGE OF 0.15 TO 1 PERCENT BY WEIGHT, CONTACTING SAID NITROGEN-CONTAINING CHARGE STOCK WITH A CATALYST CONSISTING ESSENTIALLY OF A MINOR PROPORTION OF A METAL OF THE PLATINUM SERIES DEPOSITED ONAN ACIDIC REFRACTORY OXIDE SUPPORT IN THE PRESENCE OF HYDROGEN UNDER CONDITIONS OF TEMPERATURE AND PRESSURE CAPABLE OF EFFECTING, UNDER CONTINUOUS CONDITIONS OF CONTACT, RAPID AGING OF SAID CATALYST WITH REDUCTION IN ACTIVITY THEREOF AND PERIODICALLY INTER-
Claim 2
Dependent Claim
115 words
A HYDROCRACKING PROCESS WHICH COMPRISES ADDING TO A HYDROCRACKING CHARGE STOCK A SUFFICIENT AMOUNT OF A COMPOUND, SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND A NITROGEN COMPOUND DECOMPOSABLE TO AMMONIA, UNDER THE PROCESS TEMPERATURE CONDITIONS TO ADJUST THE NITROGEN CONTENT OF SAID CHARGE STOCK WITHIN THE APPROXIMATE RANGE OF 0.15 TO 1 PERCENT BY WEIGHT, CONTACTING SAID NITROGEN-CONTAINING CHARGE STOCK WITH A CATALYST CONSISTING ESSENTIALLY OF A MINOR PROPORTION OF A METAL OF THE PLATINUM SERIES DEPOSITED ONAN ACIDIC REFRACTORY OXIDE SUPPORT IN THE PRESENCE OF HYDROGEN UNDER CONDITIONS OF TEMPERATURE AND PRESSURE CAPABLE OF EFFECTING, UNDER CONTINUOUS CONDITIONS OF CONTACT, RAPID AGING OF SAID CATALYST WITH REDUCTION IN ACTIVITY THEREOF AND PERIODICALLY INTER-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |