Patent US988644A successfully refreshed from Google Patents.
Patent US2524088A successfully refreshed from Google Patents.
US2524088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas purification process
Assignee: Beazer East Inc
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Filing: 1944-08-17
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Granted: 1950-10-03
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Expires: 1964-08-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:18
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/1425; B01D53/1456; B01D53/34; B01D53/46; B01D53/48; B01D53/485; C; C10; C10K; C10K1/00; C10K1/08; C10K1/085; C10K1/10; C10K1/12; C10K1/14; C10K1/143; C10K1/16; C10K1/18; B01D2257/00; B01D2257/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A PROCESS FOR REMOVING ORGANIC SULPHUR COMPOUNDS FROM GAS, COMPRISING, SCRUBBING SAID GAS WITH A MEDIUM COMPRISING AMINE, PHENOL, AND A COMPOUND THEREOF DISSOLVED IN A HYDROCARBON OIL TO ABSORB ORGANIC SULPHUR COMPOUNDS FROM SAID GAS AND TO FORM AMINE SULPHUR COMPLEX THEREWITH; IN A SECOND SCRUBBING STEP FLOWING SO-PURIFIED GAS INTO CONTACT WITH AN ACIDICREACTANT SOLUTION TO FORM AN AMINE SALT WITH AMINE REMOVED BY THE GAS FROM SAID MEDIUM; SEPARATING SCRUBBING MEDIUM FROM CONTACT WITH SAID GAS IN THE FIRST SCRUBBING STEP AND RECYCLING A PORTION THEREOF TO SAID SCRUBBING STEP; HEATING THE REMAINING PORTION OF SCRUBBING MEDIUM WITH SWEEP VAPOR CONTAINING STEAM AMINE AND PHENOL OBTAINED FROM A LATER PROCESS STEP TO STRIP OUT SULPHUR COMPOUNDS AND AMINE SULPHUR COMPLEX AND TO BUILD UP THE AMINE AND PHENOL CONTENT OF THE SCRUBBING MEDIUM; RECYCLING THE REFORMED MEDIUM TO THE GAS-SCRUBBING STEP; TREATING SWEEP VAPOR TOGETHER WITH THE SULPHUR COMPOUNDS STRIPPED FROM THE MEDIUM WITH AN ACIDIC
Claim 2
Dependent Claim
159 words
A PROCESS FOR REMOVING ORGANIC SULPHUR COMPOUNDS FROM GAS, COMPRISING, SCRUBBING SAID GAS WITH A MEDIUM COMPRISING AMINE, PHENOL, AND A COMPOUND THEREOF DISSOLVED IN A HYDROCARBON OIL TO ABSORB ORGANIC SULPHUR COMPOUNDS FROM SAID GAS AND TO FORM AMINE SULPHUR COMPLEX THEREWITH; IN A SECOND SCRUBBING STEP FLOWING SO-PURIFIED GAS INTO CONTACT WITH AN ACIDICREACTANT SOLUTION TO FORM AN AMINE SALT WITH AMINE REMOVED BY THE GAS FROM SAID MEDIUM; SEPARATING SCRUBBING MEDIUM FROM CONTACT WITH SAID GAS IN THE FIRST SCRUBBING STEP AND RECYCLING A PORTION THEREOF TO SAID SCRUBBING STEP; HEATING THE REMAINING PORTION OF SCRUBBING MEDIUM WITH SWEEP VAPOR CONTAINING STEAM AMINE AND PHENOL OBTAINED FROM A LATER PROCESS STEP TO STRIP OUT SULPHUR COMPOUNDS AND AMINE SULPHUR COMPLEX AND TO BUILD UP THE AMINE AND PHENOL CONTENT OF THE SCRUBBING MEDIUM; RECYCLING THE REFORMED MEDIUM TO THE GAS-SCRUBBING STEP; TREATING SWEEP VAPOR TOGETHER WITH THE SULPHUR COMPOUNDS STRIPPED FROM THE MEDIUM WITH AN ACIDIC
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) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |