US3205164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen sulfide removal
Assignee: Universal Oil Products Co
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Filing: 1962-09-24
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Granted: 1965-09-07
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Expires: 1982-09-24
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:41
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/128; C07; C07C; C07C7/00; C07C7/148; C07C7/14808; C07C7/14816; C10G; C10G27/00; C10G27/04; C10G27/10; C10K1/14; C10K1/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A PROCESS FOR THE REMOVAL OF HYDROGEN SULFIDE FROM A HYDROCARBON FRACTION CONTAINING HYDROGEN SULFIDE WHEREIN SAID FRACTION IS PASSED INTO AN ABSORPTION ZONE TO CONTACT AN ALKALINE SOLUTION PASSED INTO SAID ABSORPTION ZONE AT A POINT DOWNSTREAM FROM THE INTRODUCTION OF SAID HYDROCARBON FRACTION, THE IMPROVEMENT WHICH COMPRISES ADDING A PHTHALOCYANINE CATALYST TO SAID ABSORPTION ZONE AND INTRODUCING AN OXYGEN-CONTAINING GAS INTO SAID ABSORPTION ZONE AT A POINT BETWEEN THE INTRODUCTION OF SAID HYDROCARBON FRACTION AND SAID ALKALINE SOLUTION, THE PROCESS BEING FURTHER CHARACTERIZED IN THAT THE BULK OF THE HYDROGEN SULFIDE IS REMOVED FROM SAID HYDROCARBON FRACTION DURING INITIAL CONTACT OF THE LATTER WITH SAID SOLUTION AND IN THAT THE REMAINDER OF THE HYDROGEN SULFIDE IS REMOVED BY THE SUBSEQUENT TREATMENT OF SAID FRACTION IN THE PRESENCE OF SAID CATALYST AND OXYGEN.
Claim 2
Dependent Claim
135 words
IN A PROCESS FOR THE REMOVAL OF HYDROGEN SULFIDE FROM A HYDROCARBON FRACTION CONTAINING HYDROGEN SULFIDE WHEREIN SAID FRACTION IS PASSED INTO AN ABSORPTION ZONE TO CONTACT AN ALKALINE SOLUTION PASSED INTO SAID ABSORPTION ZONE AT A POINT DOWNSTREAM FROM THE INTRODUCTION OF SAID HYDROCARBON FRACTION, THE IMPROVEMENT WHICH COMPRISES ADDING A PHTHALOCYANINE CATALYST TO SAID ABSORPTION ZONE AND INTRODUCING AN OXYGEN-CONTAINING GAS INTO SAID ABSORPTION ZONE AT A POINT BETWEEN THE INTRODUCTION OF SAID HYDROCARBON FRACTION AND SAID ALKALINE SOLUTION, THE PROCESS BEING FURTHER CHARACTERIZED IN THAT THE BULK OF THE HYDROGEN SULFIDE IS REMOVED FROM SAID HYDROCARBON FRACTION DURING INITIAL CONTACT OF THE LATTER WITH SAID SOLUTION AND IN THAT THE REMAINDER OF THE HYDROGEN SULFIDE IS REMOVED BY THE SUBSEQUENT TREATMENT OF SAID FRACTION IN THE PRESENCE OF SAID CATALYST AND OXYGEN.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |