Patent US3026682A successfully refreshed from Google Patents.
US3026682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hydrogen and methane
Assignee: MW Kellogg Co
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Filing: 1960-01-27
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Granted: 1962-03-27
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Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 Dominic F Palazzo
- 👤 Warren C Schreiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:44
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0252; F25J3/0204; F25J3/0219; F25J3/0233; F25J3/0238; F25J2205/00; F25J2205/02; F25J2205/04; F25J2205/50; F25J2210/00; F25J2210/12; F25J2270/00; F25J2270/04; F25J2270/20; Y; Y10; Y10S; Y10S62/00; Y10S62/931; Y10S62/932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
THE PROCESS FOR THE SEPARATION OF HYDROGEN FROM A MIXTURE CONTAINING METHANE AND AT LEAST 90 MOL PERCENT HYDROGEN WHICH COMPRISES CONTACTING SAID MIXTURE WITH A LIQUEFIED STRAM OF NORMALLY GASEOUS HYDROCARBON AT AN ELEVATED PRESSURE IN AN ABSORPTION ZONE WHEREBY METHANE IS ABSORBED BY SAID HYDROCARBON, SEPARATING PURIFIED HYDROGEN OF AT LEAST 95 MOL PERCENT PURITY AND LIQUEFIED HYDROCARBON CONTAINING ABSORBED METHANE, PASSING SAID LIQUEFIED HYDROCARBON CONTAINING ABSORBED METHANE FROM SAID ABSORPTION ZNE TO A ZONE OF REDUCED PRESSURE, SEPARATING AN OVERHEAD FRACTION COMPRISING VAPORIZED METHANE AND A BOTTOM FRACTION COMPRISING LIQUEFIED HYDROCARBON IN SAID ZONE OF REDUCED PRESSURE AND RETURNING LIQUEFIED HYROCARBON FROM SAID ZONE OF REDUCED PRESSURE WITHOUT CONTACTING THE SAME WITH A STRIPPING MEDIUM TO SAID ADSORPTION ZNE AS SAID LIQUEFIED STREAM OF NORMALLY GASEOUS HYDROCARBON.
Claim 2
Dependent Claim
130 words
THE PROCESS FOR THE SEPARATION OF HYDROGEN FROM A MIXTURE CONTAINING METHANE AND AT LEAST 90 MOL PERCENT HYDROGEN WHICH COMPRISES CONTACTING SAID MIXTURE WITH A LIQUEFIED STRAM OF NORMALLY GASEOUS HYDROCARBON AT AN ELEVATED PRESSURE IN AN ABSORPTION ZONE WHEREBY METHANE IS ABSORBED BY SAID HYDROCARBON, SEPARATING PURIFIED HYDROGEN OF AT LEAST 95 MOL PERCENT PURITY AND LIQUEFIED HYDROCARBON CONTAINING ABSORBED METHANE, PASSING SAID LIQUEFIED HYDROCARBON CONTAINING ABSORBED METHANE FROM SAID ABSORPTION ZNE TO A ZONE OF REDUCED PRESSURE, SEPARATING AN OVERHEAD FRACTION COMPRISING VAPORIZED METHANE AND A BOTTOM FRACTION COMPRISING LIQUEFIED HYDROCARBON IN SAID ZONE OF REDUCED PRESSURE AND RETURNING LIQUEFIED HYROCARBON FROM SAID ZONE OF REDUCED PRESSURE WITHOUT CONTACTING THE SAME WITH A STRIPPING MEDIUM TO SAID ADSORPTION ZNE AS SAID LIQUEFIED STREAM OF NORMALLY GASEOUS HYDROCARBON.
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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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |