US3795607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal,sulfur and nitrogen removed from hydrocarbons utilizing moving bed reactors
Assignee: Universal Oil Products Co
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Filing: 1972-08-23
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Granted: 1974-03-05
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Expires: 1992-08-23
Abstract
Abstract FROM THE SECOND REACTOR, THE USED CATALYST IS REGENERATED AND CHARGED TO THE FIRST REACTOR FOR USE IN METALS REMOVAL AND INITIAL HYDROTREATING OF THE CHARGE STOCK. HYDROPROCESSING OF HYDROCARBON CHARGE STOCKS WHICH CONTAIN SULFUR AND VARIOUS METALS IS PERFOMED USING TWO MOVING BED REACTORS CONNECTED IN SERIES; INTERMITTENTLY FRESH CATALYST IS ADDED TO AND USED CATALYST IS REMOVED
Inventors
- 👤 F Adams
- 👤 R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:47
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/14; C10G45/18; B; B01; B01J; B01J37/00; B01J37/12; B01J37/14; B01J8/00; B01J8/08; B01J8/12; C10G65/00; C10G65/02; C10G65/04
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |