US2657986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of water gas
Assignee: Standard Oil Development Co
•
Filing: 1946-08-15
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Granted: 1953-11-03
•
Expires: 1966-08-15
Abstract
No abstract record available.
Inventors
- 👤 Frank T Barr
- 👤 Karl J Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:40
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/06; C10J3/12; C10J3/46; C10J3/48; C10J3/482; C10J3/72; C10J3/721; C10J3/78; C10J2300/00; C10J2300/09; C10J2300/0903; C10J2300/0906; C10J2300/0913; C10J2300/093; C10J2300/0943; C10J2300/0946; C10J2300/0953; C10J2300/0956; C10J2300/0973; C10J2300/0976; C10J2300/0983; C10J2300/0993; C10J2300/12; C10J2300/1253; C10J2300/16; C10J2300/1603; C10J2300/1606; C10J2300/18; C10J2300/1807; C10J2300/1861; C10J2300/1869; C10J2300/1884; C10J2300/1892; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE PROCESS OF PRODUCING GAS MIXTURES CONTAINING CARBON MONOXIDE AND HYDROGEN FROM SOLID CARBONACEOUS MATERIALS AND STEAM WHICH COMPRISES CONTACTING STEAM IN A GASIFICATION ZONE AT GASIFICATION TEMPERATURES WITH A DENSE EBULLIENT MASS OF FINELY DIVIDED CARBONACEOUS SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GAS TO RESEMBLE A BOILING LIQUID HAVING A WELL DEFINED UPPER LEVEL, SAID CARBONACEOUS SOLIDS BEING LOW TEMPERATURE CARBONIZATION COKE FORMED BY COKING CARBONACEOUS MATERIAL IN A COKING ZONE AT TEMPERATURE WITHIN THE RANGE OF FROM ABUT 600*-900* F. TO PRODUCE A COKE HAVING AN OXIDATION REACTIVITY OF ABOTU T15=200*-210* C. AND T75=250* C. TO PRODUCE CARBON MONOXIDE AND HYDROGEN WHEN TREATED WITH STEAM AT GASIFICATION TEMPERATURES, WITHDRAWING COKE FROM SAID COKING ZONE AND PASSING IT DIRECTLY TO SAID GASIFICATION ZONE, WITHDRAWING SOLID CARBONACEOUS GASIFICATION RESIDUE FROM SAID GASIFICATION ZONE AND PASSING IT TO A COMBUSTION ZONE, SUBJECTING SAID SOLID CARBONACEOUS GASIFICATION RESIDUE TO COMBUSTION WITH
Claim 2
Dependent Claim
149 words
THE PROCESS OF PRODUCING GAS MIXTURES CONTAINING CARBON MONOXIDE AND HYDROGEN FROM SOLID CARBONACEOUS MATERIALS AND STEAM WHICH COMPRISES CONTACTING STEAM IN A GASIFICATION ZONE AT GASIFICATION TEMPERATURES WITH A DENSE EBULLIENT MASS OF FINELY DIVIDED CARBONACEOUS SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GAS TO RESEMBLE A BOILING LIQUID HAVING A WELL DEFINED UPPER LEVEL, SAID CARBONACEOUS SOLIDS BEING LOW TEMPERATURE CARBONIZATION COKE FORMED BY COKING CARBONACEOUS MATERIAL IN A COKING ZONE AT TEMPERATURE WITHIN THE RANGE OF FROM ABUT 600*-900* F. TO PRODUCE A COKE HAVING AN OXIDATION REACTIVITY OF ABOTU T15=200*-210* C. AND T75=250* C. TO PRODUCE CARBON MONOXIDE AND HYDROGEN WHEN TREATED WITH STEAM AT GASIFICATION TEMPERATURES, WITHDRAWING COKE FROM SAID COKING ZONE AND PASSING IT DIRECTLY TO SAID GASIFICATION ZONE, WITHDRAWING SOLID CARBONACEOUS GASIFICATION RESIDUE FROM SAID GASIFICATION ZONE AND PASSING IT TO A COMBUSTION ZONE, SUBJECTING SAID SOLID CARBONACEOUS GASIFICATION RESIDUE TO COMBUSTION WITH
References Cited (Backward Citations)
US1776876A
Cited
US1857799A
Cited
GB310686A
Cited
US2187872A
Cited
US2482187A
Cited
US2436938A
Cited
US2579398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |