US2806552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption process
Assignee: Phillips Petroleum Co
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Filing: 1956-02-27
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Granted: 1957-09-17
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Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert A Koble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:58
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/1493; B01D53/1487; C; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A PROCESS FOR THE REMOVAL OF ONE COMPONENT OF A GASEOUS MIXTURE BY CONTACTING THE MIXTURE WITH A SELECTIVE SOLVENT FOR SAID COMPONENT AND REMOVING SAID COMPONENT FROM SOLUTION IN SAID SOLVENT IN A STRIPPING STEP, THE IMPROVEMENT COMPRISING PASSING HOT DEPLETED SOLVENT FROM WHICH SAID COMPONENT HAS BEEN STRIPPED IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH PARTIALLY WARMED SOLVENT CONTAINING SAID DISSOLVED COMPONENT; PASSING SAID DEPLETED SOLVENT IN HEAT EXCHANGE RELATIONSHIP WITH AN EXTRANEOUS COOLING MEDIUM; CONTACTING SAID DEPLETED SOLVENT WITH THE MATERIAL IN SAID GASEOUS MIXTURE FROM WHICH SAID COMPONENT IS ABSORBED; PASSING THE RESULTING MIXTURE OF SAID MATERIAL AND SAID DEPLETED SOLVENT IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH COLD SOLVENT CONTAINING SAID DISSOLVED COMPONENT; FURTHER COOLING SAID DEPLETED SOLVENT; AND PASSING SAID DEPLETED SOLVENT IN CONTACT WITH SAID GASEOUS MIXTURE.
Claim 2
Dependent Claim
133 words
IN A PROCESS FOR THE REMOVAL OF ONE COMPONENT OF A GASEOUS MIXTURE BY CONTACTING THE MIXTURE WITH A SELECTIVE SOLVENT FOR SAID COMPONENT AND REMOVING SAID COMPONENT FROM SOLUTION IN SAID SOLVENT IN A STRIPPING STEP, THE IMPROVEMENT COMPRISING PASSING HOT DEPLETED SOLVENT FROM WHICH SAID COMPONENT HAS BEEN STRIPPED IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH PARTIALLY WARMED SOLVENT CONTAINING SAID DISSOLVED COMPONENT; PASSING SAID DEPLETED SOLVENT IN HEAT EXCHANGE RELATIONSHIP WITH AN EXTRANEOUS COOLING MEDIUM; CONTACTING SAID DEPLETED SOLVENT WITH THE MATERIAL IN SAID GASEOUS MIXTURE FROM WHICH SAID COMPONENT IS ABSORBED; PASSING THE RESULTING MIXTURE OF SAID MATERIAL AND SAID DEPLETED SOLVENT IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH COLD SOLVENT CONTAINING SAID DISSOLVED COMPONENT; FURTHER COOLING SAID DEPLETED SOLVENT; AND PASSING SAID DEPLETED SOLVENT IN CONTACT WITH SAID GASEOUS MIXTURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |