US2926752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of carbon dioxide from gaseous mixtures
Assignee: Fluor Corp
•
Filing: 1958-09-22
•
Granted: 1960-03-01
•
Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Redemann Clio Ernst
- 👤 Frederick E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:20
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/1456; B01D53/1475; B01D53/1493; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE PROCESS OF RECOVERING CARBON DIOXIDE FROM FEED GAS MIXTURES CONTAINING CARBON DIOXIDE AND A COMPOUND OF THE GROUP CONSISTING OF HYDROGEN, CARBON MONOXIDE, HYDROCARBONS, NITROGEN, OXYGEN, MOISTURE AND AIR, THAT INCLUDES PASSING THE FEED GAS THROUGH AN ABSORPTION ZONE AT SUPERATMOSPHERIC PRESSURE IN COUNTERCURRENT CONTACT WITH GLYCEROL TRIACETATE AND THEREBY PREFERENTIALLY ABSORBING CARBON DIOXIDE IN THE TRIACETATE, REMOVING UNABSORBED COMPONENTS OF THE FEED GAS FROM SAID ZONE, SEPARATELY REMOVING THERFROM A STREAM OF THE RICH TRIACETATE AND REDUCING THE PRESSURE THEREOF TO FLASH OFF CARBON DIOXIDE, AND THEREAFTER RECYCLING THE TRIACETATE TO SAID ABSORPTION ZONE FOR COUNTER-FLOW CONTACT WITH SAID FEED GAS.
Claim 2
Dependent Claim
103 words
THE PROCESS OF RECOVERING CARBON DIOXIDE FROM FEED GAS MIXTURES CONTAINING CARBON DIOXIDE AND A COMPOUND OF THE GROUP CONSISTING OF HYDROGEN, CARBON MONOXIDE, HYDROCARBONS, NITROGEN, OXYGEN, MOISTURE AND AIR, THAT INCLUDES PASSING THE FEED GAS THROUGH AN ABSORPTION ZONE AT SUPERATMOSPHERIC PRESSURE IN COUNTERCURRENT CONTACT WITH GLYCEROL TRIACETATE AND THEREBY PREFERENTIALLY ABSORBING CARBON DIOXIDE IN THE TRIACETATE, REMOVING UNABSORBED COMPONENTS OF THE FEED GAS FROM SAID ZONE, SEPARATELY REMOVING THERFROM A STREAM OF THE RICH TRIACETATE AND REDUCING THE PRESSURE THEREOF TO FLASH OFF CARBON DIOXIDE, AND THEREAFTER RECYCLING THE TRIACETATE TO SAID ABSORPTION ZONE FOR COUNTER-FLOW CONTACT WITH SAID FEED GAS.
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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |