US3566611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid phase low temperature sweetening lng
Assignee: Marathon Oil Co
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Filing: 1968-05-09
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Granted: 1971-03-02
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Expires: 1988-05-09
Abstract
Abstract THIS PROCESS INVOLVES THE LIQUID PHASE SWEETENING OF NATURAL GAS COMPRISING FIRST LIQUEFYING THE NATURAL GAS CONTAINING DISSOLVED SULFUR-CONTAINING COMPOUNDS FOLLOWED BY REMOVAL OF THE SULFUR-CONTAINING COMPOUNDS FROM THE LIQUFIED NATURAL GAS EFFLUENT BY ADSORBING THEM ON A MOLECULAR SIEVE. SUBSTANTIALLY ALL OF SUCH IMPURITIES AS HYDROGEN SULFIDE, ORGANIC SULFUR COMPOUNDS SUCH AS MERCAPTANS, AND NON-ORGANIC COMPOUNDS SUCH AS CARBON DIOXIDE ARE SUBSTANTIALLY REMOVED BY LIQUID PHASE ADSORPTION ON THE MOLECULAR SIEVE.
Inventors
- 👤 Eugene L Sterrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:12
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/08; C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; F25J2210/00; F25J2210/60; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/908
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |