US3755556A
Expired / Lapsed
US
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Low temperature shift reaction involving an alkali metal compound anda hydrogenation dehydrogenation component
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1970-07-07
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Granted: 1973-08-28
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Expires: 1990-07-07
Abstract
Abstract A PROCESS FOR PRODUCING HYDROGEN COMPRISING REACTING CARBON MONOXIDE WITH STEAM AT A TEMPERATURE OF AT LEAST 300*F. IN THE PRESENCE OF (1) AT LEAST ONE ALKALI METAL COMPOUND DERIVED FROM ACIDS HAVING IONIZATION CONSTANTS BELOW 1 X 10**-3 AND (2) RHENIUM. THE RATIO OF THE RHENIUM COMPONENT TO THE ALKALI METAL COMPOUND RANGES FROM 0.001 TO ABOUT 10 PARTS BY WEIGHT OF THE ALKALI METAL COMPOUND. THE ALKALI METAL COMPOUND MAY BE IMPREGNATED ON THE HYDROGENATION-DEHYDROGENATION COMPONENT, RE, OR MAY BE MIXED WITH OR USED IN THE PRESENCE OF SAID COMPONENT. A SUITABLE COMBINATION IS A POTASSIUM COMPOUND SUCH AS POTASSIUM CARBONATE MIXED WITH RE2O7 ON AN ALUMINA SUPPORT.
Inventors
- 👤 C Aldridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:49
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/32; B01J23/36; C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B3/16; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |