US3684692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platinum-rhenium reforming on supports of different cracking activity
Assignee: Atlantic Richfield Co
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Filing: 1970-03-20
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Granted: 1972-08-15
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Expires: 1990-03-20
Abstract
Abstract A PROCESS FOR REFORMING NAPHTHLENE AND PARAFFIN-CONTAINING HYDROCARBON FEEDS TO IMPROVE THEIR OCTANE NUMBER IS DISCLOSED WHICH INVOLVES THE USE OF A SERIES OF CATALYTIC REACTION ZONES OF WHICH ONE OF THE FIRST CONTAINS AN ALUMINA-SUPPORTED, PLATINUM GROUP METAL AND RHENIUM-CONTAINING CATALYST WHICH SERVES TO DEHYDROGENATE NAPHTHENES AND ONE OF THE LAST OF WHICH ZONES CONTAINS A PLATINUM GROUP METAL AND RHENIUM-CONTAINING CATALYST ON A POROUS, ACIDIC OXIDE SUPPORT, THE LATTER CATALYST SERVING A DEHYDROCYCLIZE PARAFFINS.
Inventors
- 👤 Carl D Keith
- 👤 George P Masologites
- 👤 John Mooi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:04
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/02; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |