Patent US2911356A successfully refreshed from Google Patents.
US2911356A
Expired / Lapsed
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Hydrocracking of hydrocarbons with reaction conditions dependent on nitrogen contentof feed
Assignee: Union Oil Company of California
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Filing: 1957-02-18
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Granted: 1959-11-03
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Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Ross A Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:53
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
IN A CATALYTIC HYDROCRACKING PROCESS WHEREIN A MINERAL OIL FEEDSTOCK BOILING ABOVE THE GASOLINE RANGE IS CONTACTED WITH A CATALYST CONSISTING ESSENTIALLY OF AN ADSORBENT OXIDE CARRIER PLUS A MINOR PORPORTION OF AN OXIDE OF A METAL HAVING AN ATOMIC NUMBER BETWEEN 22 AND 42 INCLUSIVE, IN THE PRESENCE OF AT LEAST ABOUT 1500 S.C.F. OF HYDROGEN PER BARREL OF FEEDSTOCK AND AT A PRESSURE BETWEEN ABOUT 15 AND 10,000 P.S.I., AND WHEREIN SAID FEEDSTOCK CONTAINS A WEIGHT-PROPORTION OF NITROGEN WHICH VARIES SUBSTANTILALY FROM TIME TO TIME BETWEEN AN UPPER AND A LOWER VALUE, BOTH OF WHICH LIE WITHIN THE RANGE 0-2.5%, AND BETWEEN WHICH LIES A VALUE WITHIN THE RANGE OF 0.05% TO 0.5%, THE IMPROVEMENT WHICH COMPRISES CONCOMITANTLY ADJUSTING THE TEMPERATURE LEVEL IN THE HYDROCRACKING ZONE WITHIN THE RANGE FROM ABOUT 750*-975* F. IN DIRECT RESPONSE TO EACH OF SAID VARIATIONS IN NITROGEN CONTENT, SAID TEMPERATURE LEVEL BEING ADJUSTED UPWARDLY WITHIN SAID RANGE IN RESPONSE TO HIGH FEED NITRO-
Claim 2
Dependent Claim
161 words
IN A CATALYTIC HYDROCRACKING PROCESS WHEREIN A MINERAL OIL FEEDSTOCK BOILING ABOVE THE GASOLINE RANGE IS CONTACTED WITH A CATALYST CONSISTING ESSENTIALLY OF AN ADSORBENT OXIDE CARRIER PLUS A MINOR PORPORTION OF AN OXIDE OF A METAL HAVING AN ATOMIC NUMBER BETWEEN 22 AND 42 INCLUSIVE, IN THE PRESENCE OF AT LEAST ABOUT 1500 S.C.F. OF HYDROGEN PER BARREL OF FEEDSTOCK AND AT A PRESSURE BETWEEN ABOUT 15 AND 10,000 P.S.I., AND WHEREIN SAID FEEDSTOCK CONTAINS A WEIGHT-PROPORTION OF NITROGEN WHICH VARIES SUBSTANTILALY FROM TIME TO TIME BETWEEN AN UPPER AND A LOWER VALUE, BOTH OF WHICH LIE WITHIN THE RANGE 0-2.5%, AND BETWEEN WHICH LIES A VALUE WITHIN THE RANGE OF 0.05% TO 0.5%, THE IMPROVEMENT WHICH COMPRISES CONCOMITANTLY ADJUSTING THE TEMPERATURE LEVEL IN THE HYDROCRACKING ZONE WITHIN THE RANGE FROM ABOUT 750*-975* F. IN DIRECT RESPONSE TO EACH OF SAID VARIATIONS IN NITROGEN CONTENT, SAID TEMPERATURE LEVEL BEING ADJUSTED UPWARDLY WITHIN SAID RANGE IN RESPONSE TO HIGH FEED NITRO-
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) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |