US2549518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined selective adsorptioncatalytic cracking process
Assignee: Standard Oil Development Co
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Filing: 1949-01-08
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Granted: 1951-04-17
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Expires: 1969-01-08
Abstract
No abstract record available.
Inventors
- 👤 Stephen F Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:33
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G25/00; C10G25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IMPROVED PROCESS FOR THE PRODUCTION OF A HIGH QUALITY LUBRICATING OIL AND A HIGH QUALITY CRACKED GASOLINE FROM A PETROLEUM FEED OIL, WHICH COMPRISES SEGREGATING SAID PETROLEUM FEED OIL INTO A PETROLEUM FRACTION BOILING IN THE GAS OIL BOILING RANGE AND INTO A PETROLEUM FRACTION BOILING IN THE LUBRICATING OIL BOILING RANGE, CATALYTICALLY CRACKING SAID FRACTION BOILING IN THE GAS OIL BOILING RANGE IN A CRACKING ZONE WITH A CRACKING CATALYST UNDER CONDITIONS TO PRODUCE A CRACKED GASOLINE, SEPARATING THE CRACKING CATALYST AND REGENERATING THE SAME, SEGREGATING A PORTION OF SAID REGENERATED CRACKING CATALYST AND CONTACTING SAID PETROLEUM FRACTION BOILING IN THE LUBRICATING OIL BOILING RANGE WITH SAID CATALYST UNDER CONDITIONS TO ADSORB THEREON THE MORE AROMATIC TYPE CONSTITUENTS, THEREAFTER SEPARATING SAID CATALYST FROM THE OIL AND RECYCLING SAID CRACKING CATALYST CONTAINING SAID ADSORBED CONSTITUENTS TO SAID CRACKING ZONE.
Claim 2
Dependent Claim
139 words
IMPROVED PROCESS FOR THE PRODUCTION OF A HIGH QUALITY LUBRICATING OIL AND A HIGH QUALITY CRACKED GASOLINE FROM A PETROLEUM FEED OIL, WHICH COMPRISES SEGREGATING SAID PETROLEUM FEED OIL INTO A PETROLEUM FRACTION BOILING IN THE GAS OIL BOILING RANGE AND INTO A PETROLEUM FRACTION BOILING IN THE LUBRICATING OIL BOILING RANGE, CATALYTICALLY CRACKING SAID FRACTION BOILING IN THE GAS OIL BOILING RANGE IN A CRACKING ZONE WITH A CRACKING CATALYST UNDER CONDITIONS TO PRODUCE A CRACKED GASOLINE, SEPARATING THE CRACKING CATALYST AND REGENERATING THE SAME, SEGREGATING A PORTION OF SAID REGENERATED CRACKING CATALYST AND CONTACTING SAID PETROLEUM FRACTION BOILING IN THE LUBRICATING OIL BOILING RANGE WITH SAID CATALYST UNDER CONDITIONS TO ADSORB THEREON THE MORE AROMATIC TYPE CONSTITUENTS, THEREAFTER SEPARATING SAID CATALYST FROM THE OIL AND RECYCLING SAID CRACKING CATALYST CONTAINING SAID ADSORBED CONSTITUENTS TO SAID CRACKING ZONE.
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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) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |