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US3740204A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for the production of methane from carbonaceous fuels

Assignee: Texaco Inc
•
Filing: 1971-05-18
•
Granted: 1973-06-19
•
Expires: 1991-05-18
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Abstract

Abstract A PROCESS FOR THE PRODUCTION OF METHANEE FROM CARBONACEOUS FUELS OF GREATER MOLECULAR WEIGHT THAN METHANE BY A NON-CATALYTIC, DIRECT PARTIAL OXIDATION REACTION IN WHICH THE CARBONACEOUS FUEL AND OXYGEN ARE REACTED IN THE PRESENCE OF HYDROGEN AND CARBON MONOXIDE, OPTIONALLY WITH THE ADDITION OF STEAM, AT AN AUTOGENOUS TEMPERATURE IN THE RANGE OF 1200 TO 2200* F. AND AT A PRESSURE IN THE RANGE OF 300 TO 4500 POUNDS PER SQUARE INCH. CARBON MONOXIDE AND HYDRROGEN FROM THE PRODUCT ARE PREFERABLY TOTALLY RECYCLED TO THE REACTION SO THAT ULTIMATE PRODUCTS OF THE PROCESS ARE METHANE, CARBON DIOXIDE, AND HYDROGEN SULFIDE IF THE CARBONACEOUS FUEL CONTAINS SULFUR. SUBSTANTIALLY PURE METHANE, SUITABLE AS FUEL GAS OR PIPELINE GAS MAY BE PRODUCED FROM RELATIVELY LOW GRADE FUELS AND TRANSPORTED BY PIPELINE TO POINTS OF COMSUMPTION. D R A W I N G

Inventors

  • 👤 W Slater
  • 👤 W Schlinger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 00:31
CPC Classifications
C; C10; C10K; C10K3/00; C07; C07C; C07C1/00; C07C1/02; C10G; C10G9/00; C10G9/34; C10G9/36; C10G9/38

Claims Analysis

Total Claims: 0
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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) 1976-06-18 1976-12-18 1977-06-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-18 1980-12-18 1981-06-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-18 1984-12-18 1985-06-19 $7700.00 Window Closed / Lapsed

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