US3595782A
Expired / Lapsed
US
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Method for separating crabon dioxide from hydrocarbons
Assignee: Pan American Petroleum Corp
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Filing: 1968-12-05
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Granted: 1971-07-27
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Expires: 1988-12-05
Abstract
Abstract HIGH CARBON DIOXIDE CONTENT E.G. 1-10% CARBON DIOXIDE BY VOLUME, HIGH PRESSURE HYDROCARBON FEED GASES ARE PROCESSED TO LIQUID ETHANE ESSENTIALLY FREE OF BOTH METHANE AND CARBON DIOXIDE WITH SIMULTANEOUS PRODUCTION OF LOW PRESSURE DISTRIBUTION GAS COMPRISING METHANE AND CARBON DIOXIDE WITHOUT CARBON DIOXIDE ICING TO TO FOUL EQUIPMENT BY TURBO-EXPANSION OF THE PRECOOLED FEED GAS AND STRIPPING THEREOF WHILE MAINTAINING PRESSURES THEREON AT WHICH NONGASEOUS CARBON DIOXIDE REMAINS DISSOLVED IN LIQUID HYDROCARBON. LIQUEFACTION OF THE ETHANE GAS IS ACHIEVED BY HEAT EXCHANGE WITH STRIPPER BOTTOMS. THE PROCESS THUS ACHIEVES MAXIMUM CONSERVATION OF HEAT AND POWER.
Inventors
- 👤 Robert W Bucklin
- 👤 Howard Grekel
- 👤 Lamar F Sudduth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:12
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/06; C07; C07C; C07C7/00; F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0219; F25J3/0228; F25J3/0242; F25J3/0247; F25J3/0266; F25J2200/00; F25J2200/04; F25J2200/70; F25J2200/72; F25J2205/00; F25J2205/02; F25J2205/04; F25J2210/00; F25J2210/12; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151; Y10; Y10S; Y10S62/00; Y10S62/928; Y10S62/929
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |