Patent US2838388A successfully refreshed from Google Patents.
US2838388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for gasifying carbonaceous fuels
Assignee: Texaco Inc
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Filing: 1954-04-05
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Granted: 1958-06-10
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Expires: 1974-04-05
Abstract
No abstract record available.
Inventors
- 👤 Charles R Carkeek
- 👤 Dale M Strasser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:13
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/20; C; C10; C10J; C10J3/00; C10J3/46; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933; Y; Y10; Y10S; Y10S48/00; Y10S48/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
IN A PROCESS FOR THE PRODUCTION OF CARBON MONOXIDE AND HYDROGEN FROM SOLID CARBONACEOUS FUEL WHEREIN A FLUID SLURRY OF SAID FUEL IN PARTICLE FORM IN WATER IS FORMED, SAID SLURRY IS PASSED AS A CONFINED STREAM IN TURBULENT FLOW THROUGH A HEATING ZONE WHEREIN SAID WATER IS VAPORIZED FORMING A DISPERISON OF SAID FUEL PARTICLES IN VAPOR, AND SAID DISPERISON OF SAID FUEL PARTICLES REACTION WITH FREE OXYGEN IN AN UNOBSTRUCTED REACTION ZONE AUTOGENOUSLY MAINTAINED AT A TEMPERATURE IN THE RANGE OF 200 TO 3000*F. PRODUCING A GASEOUS PRODUCT COMPRISING MAINLY CARBON MONOXIDE AND HYDROGEN AND CONTAINING FREE CARBON, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID PRODUCT GAS WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE OXYGENATED HYDROCARBON WETTING AGENT EFFECTING REMOVAL OF CARBON THEREFROM AND FORMING A SUSPENSION OF CARBON IN SAID AQUEOUS SOLUTION, AND ADMIXING SAID SOLID CARBONACEOUS FUEL IN PARTICLE FORM WITH SAID AQUEOUS SOLUTION CONTAINING SAID RECOVERED CARBON SUSPENDED THEREIN TO FORM SAID SLURRY WHEREBY SAID WATERSOLUBLE OXYGENATED HDROCARBON IS SUBJECTED TO HEATING AND VAPORIZATION IN SAID HEATING ZONE AND IS FED INTO SAID GASFICATION ZONE WHEREIN IT IS CONVERTED TO CARBON MONOXIDE AND HYDROGEN.
Claim 2
Dependent Claim
188 words
IN A PROCESS FOR THE PRODUCTION OF CARBON MONOXIDE AND HYDROGEN FROM SOLID CARBONACEOUS FUEL WHEREIN A FLUID SLURRY OF SAID FUEL IN PARTICLE FORM IN WATER IS FORMED, SAID SLURRY IS PASSED AS A CONFINED STREAM IN TURBULENT FLOW THROUGH A HEATING ZONE WHEREIN SAID WATER IS VAPORIZED FORMING A DISPERISON OF SAID FUEL PARTICLES IN VAPOR, AND SAID DISPERISON OF SAID FUEL PARTICLES REACTION WITH FREE OXYGEN IN AN UNOBSTRUCTED REACTION ZONE AUTOGENOUSLY MAINTAINED AT A TEMPERATURE IN THE RANGE OF 200 TO 3000*F. PRODUCING A GASEOUS PRODUCT COMPRISING MAINLY CARBON MONOXIDE AND HYDROGEN AND CONTAINING FREE CARBON, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID PRODUCT GAS WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE OXYGENATED HYDROCARBON WETTING AGENT EFFECTING REMOVAL OF CARBON THEREFROM AND FORMING A SUSPENSION OF CARBON IN SAID AQUEOUS SOLUTION, AND ADMIXING SAID SOLID CARBONACEOUS FUEL IN PARTICLE FORM WITH SAID AQUEOUS SOLUTION CONTAINING SAID RECOVERED CARBON SUSPENDED THEREIN TO FORM SAID SLURRY WHEREBY SAID WATERSOLUBLE OXYGENATED HDROCARBON IS SUBJECTED TO HEATING AND VAPORIZATION IN SAID HEATING ZONE AND IS FED INTO SAID GASFICATION ZONE WHEREIN IT IS CONVERTED TO CARBON MONOXIDE AND HYDROGEN.
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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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |