US2726932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing dilute h2s streams
Assignee: Standard Oil Co
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Filing: 1952-05-15
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Granted: 1955-12-13
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Expires: 1972-05-15
Abstract
No abstract record available.
Inventors
- 👤 William A Shire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:59
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/69; C01B17/74; C01B17/76; C01B7/00; C01B7/19; C01B7/191
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF PROCESS A GASEOUS STREAM CONSISTING CHEIFLY OF HF AND CONTAINING BOTH HYDROCARBONS AND H2S, WHICH METHOD COMPRISES CONTACTING SAID STREAM AT A TEMPERATURE ABOVE 350* C. WITH AN EXCESS OF FREE OXYGEN WHICH IS GREATER THAN REQUIRED FOR COMPLETE OXIDATION OF ALL OXIDIZABLE COMPONENTS OF SAID STREAM IN THE PRESENCE OF A CATALYST SELECTED FROM THE CLASS CONSISTING OF PLATINUM AND VANADIUM OXIDE TO EFFECT TOTAL CONVERSION OF THE H2S COMPONENT OF THE STREAM CHIEFLY TO SO3 AND H2O AND CONVERSION OF THE HYDROCARBONS TO CO2 AND H2O, COOLING THE EFFLUENT GAS STREAM FROM THE CONTACTING STEP, ABSORBING THE HF, SO3 AND H2O IN CONCENTRATED SULFURIC ACID TO AUGMENT THE AMOUNT THEREOF, AND VENTING UNABSORBED CO2 AND EXCESS OXYGEN FROM THE SYSTEM.
Claim 2
Independent Claim
125 words
THE METHOD OF PROCESS A GASEOUS STREAM CONSISTING CHEIFLY OF HF AND CONTAINING BOTH HYDROCARBONS AND H2S, WHICH METHOD COMPRISES CONTACTING SAID STREAM AT A TEMPERATURE ABOVE 350* C. WITH AN EXCESS OF FREE OXYGEN WHICH IS GREATER THAN REQUIRED FOR COMPLETE OXIDATION OF ALL OXIDIZABLE COMPONENTS OF SAID STREAM IN THE PRESENCE OF A CATALYST SELECTED FROM THE CLASS CONSISTING OF PLATINUM AND VANADIUM OXIDE TO EFFECT TOTAL CONVERSION OF THE H2S COMPONENT OF THE STREAM CHIEFLY TO SO3 AND H2O AND CONVERSION OF THE HYDROCARBONS TO CO2 AND H2O, COOLING THE EFFLUENT GAS STREAM FROM THE CONTACTING STEP, ABSORBING THE HF, SO3 AND H2O IN CONCENTRATED SULFURIC ACID TO AUGMENT THE AMOUNT THEREOF, AND VENTING UNABSORBED CO2 AND EXCESS OXYGEN FROM THE SYSTEM.
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) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |