US3646239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatic treatment of hydrocarbon dehydrogenation effluent
Assignee: Phillips Petroleum Co
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Filing: 1969-06-03
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Granted: 1972-02-29
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Expires: 1989-06-03
Abstract
Abstract EXCESS PURGE WATER CONTAINING OXYGENATD HYDROCARBONS RESULTING FROM HYDROCARBON DEHYDROGENATION PROCESSES IS RENDERED NONTOXIC BY THE CONVERSION OF THE OXYGENATED HYDROCARBONS TO WATER AND CARBON OXIDES IN THE PRESENCE OF MICRORGANISM, E.G., SAPROPHYTIC BACTERIA, PROTOZOA, YEAST AND FUNGI, UNDER AEROBIC CONDITIONS. IN PREFERRED EMBODIMENTS OF THE INVENTION, THE PURGE WATER PRIOR TO TREATMENT WITH MICOORGANISMS IS REBOLED OR STRIPPED WITH A HOT GAS TO REDUCE THE CONVENTRATION OF OXYGENATED HYDROCARBONS.
Inventors
- 👤 Thomas Hutson Jr
- 👤 Ronald E Riter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:29
CPC Classifications
C; C07; C07C; C07C11/00; C02; C02F; C02F3/00; C02F3/34; C02F3/344; C07C5/00; C07C5/42; C07C5/48; C07C7/00; C07C7/11; C02F2103/00; C02F2103/34; C02F2103/36; C02F2103/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |