US2998303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for purifying hydrogen contaminated with methane
Assignee: Midland Ross Corp
•
Filing: 1958-08-26
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Granted: 1961-08-29
•
Expires: 1978-08-26
Abstract
No abstract record available.
Inventors
- 👤 Huebler Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:02
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/74; C21D1/76; C21D1/763; C01; C01B; C01B3/00; C01B3/50; C01B3/56; C01B3/58; C01B2203/00; C01B2203/04; C01B2203/0435; C01B2203/0465; C01B2203/0475; C01B2203/0495; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR REMOVING MINUTE QUANTITIES OF CONTAMINANTS PRESENT IN COMMERCIALLY PREPARED HYDROGEN WHICH COMPRISES MIXING SAID HYDROGEN WITH STEAM AT THE RATE OF ONE MOL OF HYDROGEN WITH 9 MOLS OF STEAM, HEATING THE RESULTANT MIXTURE TO ABOUT 900* F. IN AN INDIRECT HEATER, PASSING THE MIXTURE THROUGH A CONVERSION TOWER CONTAINING A CATALYST WHOSE ACTIVE INGREDIENT IS METAL SELECTED FROM THE GROUP CONSISTING OF RUTHENIUM AND RHODIUM TO CONVERT THE CARBON CONTENT OF THE METHANE TO CARBON DIOXIDE, REMOVING THE CARBON DIOXIDE FROM THE HYDROGEN STREAM IN A SCRUBBING OPERATION, AND DRYING THE HYDROGEN STREAM BY PASSING IT THROUGH A DESICCANT TOWER.
Claim 2
Dependent Claim
104 words
A PROCESS FOR REMOVING MINUTE QUANTITIES OF CONTAMINANTS PRESENT IN COMMERCIALLY PREPARED HYDROGEN WHICH COMPRISES MIXING SAID HYDROGEN WITH STEAM AT THE RATE OF ONE MOL OF HYDROGEN WITH 9 MOLS OF STEAM, HEATING THE RESULTANT MIXTURE TO ABOUT 900* F. IN AN INDIRECT HEATER, PASSING THE MIXTURE THROUGH A CONVERSION TOWER CONTAINING A CATALYST WHOSE ACTIVE INGREDIENT IS METAL SELECTED FROM THE GROUP CONSISTING OF RUTHENIUM AND RHODIUM TO CONVERT THE CARBON CONTENT OF THE METHANE TO CARBON DIOXIDE, REMOVING THE CARBON DIOXIDE FROM THE HYDROGEN STREAM IN A SCRUBBING OPERATION, AND DRYING THE HYDROGEN STREAM BY PASSING IT THROUGH A DESICCANT TOWER.
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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) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |