Patent US2580068A successfully refreshed from Google Patents.
US2580068A
Expired / Lapsed
US
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Process of removing sulfur compounds and carbon monoxide from hydrogen
Assignee: EIDP Inc
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Filing: 1947-04-29
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Granted: 1951-12-25
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Expires: 1967-04-29
Abstract
No abstract record available.
Inventors
- 👤 John S Beekley
- 👤 Walter E Vail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:49
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; C01B3/58; C01B3/586; C01B2203/00; C01B2203/04; C01B2203/0435; C01B2203/0445; C01B2203/045; C01B2203/0465; C01B2203/047; C01B2203/0485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A PROCESS OF PURIFYING A HYDROGEN-RICH SUBSTANTIALLY OXYGEN FREE GAS CONTAINING SULFUR COMPOUNDS AND CARBON MONOXIDE, THE STEP WHICH COMPRISES PASSING THE IMPURE GAS INTO A REACTION ZONE AT A TEMPERATURE BETWEEN 200 AND 400* C. AND UNDER A PRESSURE BETWEEN 100 AND 500 LBS./SQ. IN. GAUGE OVER A COPPER-ZINC CARBON MONOXIDE AND SULFUR REMOVAL CATALYST AND, SUBSTANTIALLY IMMEDIATELY THEREAFTER AND WITHOUT SUBSTANTIAL CHANGES IN TEMPERATURE AND PRESSURE CONDITIONS, OVER A METHANATION CATAYLST.
Claim 2
Dependent Claim
74 words
IN A PROCESS OF PURIFYING A HYDROGEN-RICH SUBSTANTIALLY OXYGEN FREE GAS CONTAINING SULFUR COMPOUNDS AND CARBON MONOXIDE, THE STEP WHICH COMPRISES PASSING THE IMPURE GAS INTO A REACTION ZONE AT A TEMPERATURE BETWEEN 200 AND 400* C. AND UNDER A PRESSURE BETWEEN 100 AND 500 LBS./SQ. IN. GAUGE OVER A COPPER-ZINC CARBON MONOXIDE AND SULFUR REMOVAL CATALYST AND, SUBSTANTIALLY IMMEDIATELY THEREAFTER AND WITHOUT SUBSTANTIAL CHANGES IN TEMPERATURE AND PRESSURE CONDITIONS, OVER A METHANATION CATAYLST.
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) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |