Patent US3030191A successfully refreshed from Google Patents.
US3030191A
Expired / Lapsed
US
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Gas chromatography by destructive demethylation
Assignee: Standard Oil Co
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Filing: 1958-08-14
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Granted: 1962-04-17
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Expires: 1978-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Ridgway
- 👤 Zlatkis Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:13
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/84; Y; Y10; Y10T; Y10T436/00; Y10T436/21; Y10T436/214
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A METHOD FOR DETECTING AND ANALYZING QUANTITATIVELY THE COMPONENTS OF A HYDROCARBON GAS MIXTURE WHICH MAY BE HYDROCRACKED TO METHANE AND WHICH HAVE BEEN SEPARATED FROM ONE ANOTHER BY THE PROCESS OF GAS CHROMATOGRA PHY, WHICH COMPRISES THE IMPROVEMENT OF PASSING THE SEPARATED COMPONENTS DIRECTLY TO A HYDROCRACKING ZONE, HYDROCRACKING THE SEPARATED COMPONENT IN THE PRESENCE OF HYDROGEN TO FORM METHANE, SAID HYDROCRACKING BEING CONDUCTED OVER A NICKEL CATALYST AT A TEMPERATURE OF BETWEEN ABOUT 450 AND 800* F. AND AT S SPACE VELOCITY SUFFICIENT TO EFFECT SUBSTANTIALLY COMPLETE DEMETHYLATION OF THE HDYROCARBON GAS, AND ANALYZING THE HYDROCRACKING PRODUCT STREAM FOR METHANE AS A QUANTITATIVE MEASURE OF THE COMPONENT.
Claim 2
Independent Claim
109 words
A METHOD FOR DETECTING AND ANALYZING QUANTITATIVELY THE COMPONENTS OF A HYDROCARBON GAS MIXTURE WHICH MAY BE HYDROCRACKED TO METHANE AND WHICH HAVE BEEN SEPARATED FROM ONE ANOTHER BY THE PROCESS OF GAS CHROMATOGRA PHY, WHICH COMPRISES THE IMPROVEMENT OF PASSING THE SEPARATED COMPONENTS DIRECTLY TO A HYDROCRACKING ZONE, HYDROCRACKING THE SEPARATED COMPONENT IN THE PRESENCE OF HYDROGEN TO FORM METHANE, SAID HYDROCRACKING BEING CONDUCTED OVER A NICKEL CATALYST AT A TEMPERATURE OF BETWEEN ABOUT 450 AND 800* F. AND AT S SPACE VELOCITY SUFFICIENT TO EFFECT SUBSTANTIALLY COMPLETE DEMETHYLATION OF THE HDYROCARBON GAS, AND ANALYZING THE HYDROCRACKING PRODUCT STREAM FOR METHANE AS A QUANTITATIVE MEASURE OF THE COMPONENT.
References Cited (Backward Citations)
US2813010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |