US2659692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic reforming of hydrocarbons in two stages utilizing a platinum-alumina-halogen catalyst composite
Assignee: Universal Oil Products Co
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Filing: 1949-02-26
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Granted: 1953-11-17
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Expires: 1969-02-26
Abstract
No abstract record available.
Inventors
- 👤 Haensel Vladimir
- 👤 Clarence G Gerhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:30
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/06; B; B01; B01J; B01J23/00; B01J23/90; B01J23/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A REFORMING PROCESS WHICH COMPRISES DISTILLING A HYDROCARBON FRACTION CONTAINING NAPHTHENES AND BOILING BELOW ABOUT 425* F. INTO A HIGHER AND A LOWER BOILING FRACTION, REFORMING SAID LOWER BOILING FRACTION IN THE PRESENCE OF HYDROGEN AND A CATALYST COMPRISING PLATINUM AND ALUMINA IN A FIRST ZONE AND REFORMING SAID HIGHER BOILING FRACTION AT LESS INTENSE CONDITIONS IN THE PRESENCE OF HYDROGEN AND A CATALYST COMPRISING PLATINUM AND ALUMINA IN A SECOND ZONE, THE CATALYST IN SAID FIRST ZONE CONTAINING A GREATER EFFECTIVE CONCENTRATION OF HALOGEN PROMOTER THAN THE CATALYST IN SAID SECOND ZONE.
Claim 2
Dependent Claim
93 words
A REFORMING PROCESS WHICH COMPRISES DISTILLING A HYDROCARBON FRACTION CONTAINING NAPHTHENES AND BOILING BELOW ABOUT 425* F. INTO A HIGHER AND A LOWER BOILING FRACTION, REFORMING SAID LOWER BOILING FRACTION IN THE PRESENCE OF HYDROGEN AND A CATALYST COMPRISING PLATINUM AND ALUMINA IN A FIRST ZONE AND REFORMING SAID HIGHER BOILING FRACTION AT LESS INTENSE CONDITIONS IN THE PRESENCE OF HYDROGEN AND A CATALYST COMPRISING PLATINUM AND ALUMINA IN A SECOND ZONE, THE CATALYST IN SAID FIRST ZONE CONTAINING A GREATER EFFECTIVE CONCENTRATION OF HALOGEN PROMOTER THAN THE CATALYST IN SAID SECOND ZONE.
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) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |