US2530701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of desulfurized gasoline
Assignee: Shell Development Co
•
Filing: 1948-06-15
•
Granted: 1950-11-21
•
Expires: 1968-06-15
Abstract
No abstract record available.
Inventors
- 👤 Arnold L Johnson
- 👤 Elmer G Carlson
- 👤 Frank E Biasca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:53
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G27/00; C10G27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PROCESS FOR THE PRODUCTION OF PARTIALLY DESULFURIZED GASOLINE WHICH COMPRISES CRACKING A PETROLEUM OIL CONTAINING AT LEAST 0.5% SULFUR IN A CRACKING ZONE WITH THE AID OF A CLAY-TYPE CRACKING CATALYST THEREBY TO PRODUCE A GASIOUS PRODUCT CONTAINING HYDROGEN SULFIDE AND A MERCAPTANCONTAINING HYDROCARBON FRACTION BOILING IN THE GASOLINE BOILING RANGE, EXTRACTING MERCAPTANS FROM SAID FRACTION WITH AN IMMISCIBLE ALKALINE SOLVENT, OXIDIZING THE MERCAPTANS SO EXTRACTED TO DISULFIDES, AND PASSING SAID DISULFIDES TO SAID CRACKING ZONE WHEREBY THE DISULFIDES ARE CRACKED SIMULTANEOUSLY WITH SAID FIRST-MENTIONED SULFURBEARING PETROLEUM OIL WITH THE FORMATION OF FURTHER QUANTITIES OF HYDROGEN SULFIDE.
Claim 2
Dependent Claim
98 words
A PROCESS FOR THE PRODUCTION OF PARTIALLY DESULFURIZED GASOLINE WHICH COMPRISES CRACKING A PETROLEUM OIL CONTAINING AT LEAST 0.5% SULFUR IN A CRACKING ZONE WITH THE AID OF A CLAY-TYPE CRACKING CATALYST THEREBY TO PRODUCE A GASIOUS PRODUCT CONTAINING HYDROGEN SULFIDE AND A MERCAPTANCONTAINING HYDROCARBON FRACTION BOILING IN THE GASOLINE BOILING RANGE, EXTRACTING MERCAPTANS FROM SAID FRACTION WITH AN IMMISCIBLE ALKALINE SOLVENT, OXIDIZING THE MERCAPTANS SO EXTRACTED TO DISULFIDES, AND PASSING SAID DISULFIDES TO SAID CRACKING ZONE WHEREBY THE DISULFIDES ARE CRACKED SIMULTANEOUSLY WITH SAID FIRST-MENTIONED SULFURBEARING PETROLEUM OIL WITH THE FORMATION OF FURTHER QUANTITIES OF HYDROGEN SULFIDE.
References Cited (Backward Citations)
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US2337003A
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US2352059A
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US2336174A
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Cited
US2415477A
Cited
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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) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |