Patent US3144307A successfully refreshed from Google Patents.
US3144307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the selective adsorption of hydrogen sulfide and its subsequent catalytic conversion to elemental sulphur
Assignee: Sulphur Recovery Inc
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Filing: 1960-05-23
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Granted: 1964-08-11
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:19
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/0404; C01B17/0408; C10; C10K; C10K1/00; C10K1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A SULPHUR RECOVERY PROCESS, COMPRISING CONTACTING A HYDROCARBON GAS STREAM CONTAINING HYDROGEN SULPHIDE WITH A MOLECULAR SIEVE FOR HYDROGEN SULPHIDE TO SELECTIVELY ABSORB SAID HYDROGEN SULPHIDE, THEREAFTER DE-SORBING THE MOLECULAR SIEVE WITH A STREAM OF GASES CONTAINING A REACTANT CONSISTING OF SULPHUR DIOXIDE FOR CONVERTING HYDROGEN SULPHIDE TO ELEMENTAL SULPHUR, SAID MOLECULAR SIEVE COMPRISING A CATALYST FOR THE CONVERSION REACTION, AND CONDUCTING THE DESORPTION AT THE HYDROGEN SULPHIDE CONVERSION TEMPERATURE WHEREBY TO SUBSTANTIALLY SIMULTANEOUSLY DE-SORB THE MOLECULAR SIEVE OF THE HYDROGEN SULPHIDE AND TO PRODUCE ELEMENTAL SULPHUR THEREFROM.
Claim 2
Dependent Claim
88 words
A SULPHUR RECOVERY PROCESS, COMPRISING CONTACTING A HYDROCARBON GAS STREAM CONTAINING HYDROGEN SULPHIDE WITH A MOLECULAR SIEVE FOR HYDROGEN SULPHIDE TO SELECTIVELY ABSORB SAID HYDROGEN SULPHIDE, THEREAFTER DE-SORBING THE MOLECULAR SIEVE WITH A STREAM OF GASES CONTAINING A REACTANT CONSISTING OF SULPHUR DIOXIDE FOR CONVERTING HYDROGEN SULPHIDE TO ELEMENTAL SULPHUR, SAID MOLECULAR SIEVE COMPRISING A CATALYST FOR THE CONVERSION REACTION, AND CONDUCTING THE DESORPTION AT THE HYDROGEN SULPHIDE CONVERSION TEMPERATURE WHEREBY TO SUBSTANTIALLY SIMULTANEOUSLY DE-SORB THE MOLECULAR SIEVE OF THE HYDROGEN SULPHIDE AND TO PRODUCE ELEMENTAL SULPHUR THEREFROM.
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |