US2815650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reboiled absorber operation
Assignee: Phillips Petroleum Co
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Filing: 1955-07-01
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Granted: 1957-12-10
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Expires: 1975-07-01
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mcintire
- 👤 Russell O Shelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0238; C; C07; C07C; C07C7/00; C07C7/11; F25J3/0204; F25J3/0219; F25J3/0233; F25J3/0252; F25J2205/00; F25J2205/50; F25J2290/00; F25J2290/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A PROCESS FOR CARRYING OUT A DEMETHANIZING OPERATION COMPRISING INTRODUCING A VAPOROUS FEED STOCK COMPRISING METHANE AND AT LEAST ONE C2 HYDROCARBON INTO AN ABSORPTION ZONE AND THEREIN CONTACTING SAID FEED STOCK WITH A LEAN ABSORPTION OIL, WITHDRAWING THE ABSORPTION OIL CONTAINING ABSORBED C2 HYDROCARBON FROM SAID ABSORPTION ZONE, STRIPPING ABSORBED HYDROCARBON FROM THE WITHDRAWN ABSORPTOIN OIL, INTRODUCING THE ABSORPTION OIL DELETED OF ABSORBED HYDROCARBON FORM THE STRIPPING OPERATION INTO SAID ABSORPTION ZONE AS SAID LEAN ABSORPTION OIL, CONDENSING A PORTION OF THE STRIPPED HYDROCARBON, INTRODUCING CONDENSATE SO PRODUCED AND THE UNCONDENSED STRIPPED HYDROCARBON INTO A FRACTIONATING ZONE, SAID CONDENSATE SERVING AS REFLUX FOR SAID FRACTIONATING ZONE, ADDDING SUFFICIENT REBOILING HEAD TO SAID FRACTIONATING ZONE TO REBOIL MATERIAL THEREIN, PASSING VAPOR FROM SAID FRACTIONATING ZONE INTO SAID ABSORPTION ZONE AND THEREIN ALSO CONTACTING THIS LATTER UNCONDENSED STRIPPED HYDROCARBON WITH THE FIRST MENTIONED LEAN ABSORPTION OIL AND WITHDRAWING UN-
Claim 2
Dependent Claim
148 words
A PROCESS FOR CARRYING OUT A DEMETHANIZING OPERATION COMPRISING INTRODUCING A VAPOROUS FEED STOCK COMPRISING METHANE AND AT LEAST ONE C2 HYDROCARBON INTO AN ABSORPTION ZONE AND THEREIN CONTACTING SAID FEED STOCK WITH A LEAN ABSORPTION OIL, WITHDRAWING THE ABSORPTION OIL CONTAINING ABSORBED C2 HYDROCARBON FROM SAID ABSORPTION ZONE, STRIPPING ABSORBED HYDROCARBON FROM THE WITHDRAWN ABSORPTOIN OIL, INTRODUCING THE ABSORPTION OIL DELETED OF ABSORBED HYDROCARBON FORM THE STRIPPING OPERATION INTO SAID ABSORPTION ZONE AS SAID LEAN ABSORPTION OIL, CONDENSING A PORTION OF THE STRIPPED HYDROCARBON, INTRODUCING CONDENSATE SO PRODUCED AND THE UNCONDENSED STRIPPED HYDROCARBON INTO A FRACTIONATING ZONE, SAID CONDENSATE SERVING AS REFLUX FOR SAID FRACTIONATING ZONE, ADDDING SUFFICIENT REBOILING HEAD TO SAID FRACTIONATING ZONE TO REBOIL MATERIAL THEREIN, PASSING VAPOR FROM SAID FRACTIONATING ZONE INTO SAID ABSORPTION ZONE AND THEREIN ALSO CONTACTING THIS LATTER UNCONDENSED STRIPPED HYDROCARBON WITH THE FIRST MENTIONED LEAN ABSORPTION OIL AND WITHDRAWING UN-
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |