US3770622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of wet natural gas mixtures to recover liquid hydrocarbons
Assignee: Fluor Corp
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Filing: 1970-12-28
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Granted: 1973-11-06
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Expires: 1990-12-28
Abstract
Abstract NATURAL GAS MIXTURES CONTAINING PREDOMINANTLY METHANE BUT ALSO APPRECIABLE AMOUNTS OF HEAVIER HYDROCARBONS SO AS TO BE "WET" ARE CONTACTED WITH ORGANIC LIQUIDS HAVING COMBINED OXYGEN AND IN WHICH CO2 AND H2S PRESENT ARE DISSOLVED IN THE CO2-H2S-ORGANIC LIQUID SOLUTION. DRY METHANE RICH GAS IS OBTAINED, ABSORBED LIQUID HYDROCARBONS ARE RECOVERED FROM THE ORGANIC LIQUID FOR THEIR GASOLINE VALUE, CO2 AND H2S ARE RECOVERED AS GASEOUS PRODUCTS. CO2 IS OFTEN VENTED TO ATMOSPHERE AND THE ORGANIC LIQUID IS RECIRCULATED.
Inventors
- 👤 E Freireich
- 👤 H Klooster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:19
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/04; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/526; C07; C07C; C07C7/00; C07C7/11; C08; C08J; C08J9/00; C08J9/04; C10G2300/00; C10G2300/10; C10G2300/1025
Claims Analysis
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |