US2787598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the regeneration of a catalyst accelerating the binding of oxygen to hydrogen
Assignee: Svenska Skifferolje AB
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Filing: 1952-11-24
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Granted: 1957-04-02
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Expires: 1972-11-24
Abstract
No abstract record available.
Inventors
- 👤 Hammar Carl Gustaf Bertil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:43
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; C01B3/58; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01J; B01J27/00; B01J27/02; B01J27/04; C01B2203/00; C01B2203/04; C01B2203/0435; C01B2203/045; C01B2203/0465; C01B2203/0485; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584; Y10; Y10S; Y10S502/00; Y10S502/515; Y10S502/517
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A PROCESS FOR REMOVING FREE OXYGEN FROM A RAE-GAS CONTAINING FREE HYDROGEN, HYDROGEN SULPHIDE IN SUBSTANTIAL AMOUNT AND FREE OXYGEN, BY MEANS OF A SULPHIDIC CATALYST WHICH ACCELERATES THE REACTION BETWEEN OXYGEN AND HYDROGEN TO FORM WATER, THE CONCENTRATION OF OXYGEN BEING SO HIGH AS TO CAUSE AT A REACTION TEMPERATURE BETWEEN 150* AND 350*C. AN AMOUNT OF ELEMENTAL SULPHUR TO BE FORMED PER UNIT OF TIME BY THE OXIDATION OF HYDROGEN SULPHIDE WITH OXYGEN IN EXCESS OF THE AMOUNT OF ELEMENTAL SULPHUR SIMULTANEOUSLY REMOVED BY EVAPORATION AND BY REDUCTION WITH HYDROGEN, WHICH COMPRISES THE SEQUENCE OF STEPS CONSISTING OF (1) CONTINUING THE PASSAGE THROUGH A MASS OF SAID SULPHIDIC CATALYST OF QUANTITIES OF SAID RAW-GAS INITIALLY CONTAINING FREE OXYGEN IN A CONCENTRATION SO HIGH AS TO CAUSE FORMATION AND DEPOSITION OF FREE ELEMENTAL SULPHUR UNIT THE CATALYST HAS BECOME POLLUTED WITH DEPOSITED FREE ELEMENTAL SULPHUR, THEN (2) PASSING THROUGH THE RESULTING MASS OF SULPHUR-POLLUTED CATALYST A REGENERATING GAS CONTAINING FREE HYDROGEN, HYDROGEN SULPHIDE AND FREE OXYGEN IN A CONCENTRATION SO LOW AS NOT TO CAUSE SUCH A FORMATION AND DEPOSITION OF FREE ELEMENTAL SULPHUR, IN AN AMOUNT TO GENERATE THE CATALYST MASS, AND THEN REPEATING STEP 1.
Claim 2
Dependent Claim
198 words
A PROCESS FOR REMOVING FREE OXYGEN FROM A RAE-GAS CONTAINING FREE HYDROGEN, HYDROGEN SULPHIDE IN SUBSTANTIAL AMOUNT AND FREE OXYGEN, BY MEANS OF A SULPHIDIC CATALYST WHICH ACCELERATES THE REACTION BETWEEN OXYGEN AND HYDROGEN TO FORM WATER, THE CONCENTRATION OF OXYGEN BEING SO HIGH AS TO CAUSE AT A REACTION TEMPERATURE BETWEEN 150* AND 350*C. AN AMOUNT OF ELEMENTAL SULPHUR TO BE FORMED PER UNIT OF TIME BY THE OXIDATION OF HYDROGEN SULPHIDE WITH OXYGEN IN EXCESS OF THE AMOUNT OF ELEMENTAL SULPHUR SIMULTANEOUSLY REMOVED BY EVAPORATION AND BY REDUCTION WITH HYDROGEN, WHICH COMPRISES THE SEQUENCE OF STEPS CONSISTING OF (1) CONTINUING THE PASSAGE THROUGH A MASS OF SAID SULPHIDIC CATALYST OF QUANTITIES OF SAID RAW-GAS INITIALLY CONTAINING FREE OXYGEN IN A CONCENTRATION SO HIGH AS TO CAUSE FORMATION AND DEPOSITION OF FREE ELEMENTAL SULPHUR UNIT THE CATALYST HAS BECOME POLLUTED WITH DEPOSITED FREE ELEMENTAL SULPHUR, THEN (2) PASSING THROUGH THE RESULTING MASS OF SULPHUR-POLLUTED CATALYST A REGENERATING GAS CONTAINING FREE HYDROGEN, HYDROGEN SULPHIDE AND FREE OXYGEN IN A CONCENTRATION SO LOW AS NOT TO CAUSE SUCH A FORMATION AND DEPOSITION OF FREE ELEMENTAL SULPHUR, IN AN AMOUNT TO GENERATE THE CATALYST MASS, AND THEN REPEATING STEP 1.
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) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |