US3194644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of pipeline gas from
Assignee: —
•
Filing: —
•
Granted: 1965-07-13
•
Expires: 1982-07-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:51
CPC Classifications
C; C10; C10B; C10B57/00; C10B57/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR PRODUCING PIPELINE GAS FROM COALY SOLIDS, WHICH PROCESS COMPRISES (A) INTRODUCING SAID SOLIDS INTO A HYDROGASIFICATION ZONE WHEREIN BETWEEN 20 AND 70 WEIGHT PERCENT THEREOF IS REACTED WITH HYDROGEN AND STEAM AT A TEMPERAURE IN THE RANGE OF 1200 TO 2000*F. AND AT A PRESSURE IN THE RANGE OF 50 TO 150 ATMOSPHERES TO YIELD GAS A COMPRISING METHANE, HYDROGEN, AND CARBON MONOOXIDE, (B) RECOVERING SAID GAS A FROM SAID HYDROGASIFICATION ZONE, (C) SEPARATELY RECOVERING THE REMAINDER OF SAID SOLIDS FROM SAID HYDROGASIFICATION ZONE, (D) GASIFYING AT LEAST A PORTION OF THE RECOVERED SOLIDS WITH STEAM IN THE PRESENCE OF A CARBON DIOXIDE ACCEPTOR IN A GASIFICATION ZONE MAINTAINED AT A TEMPERATURE IN THE RANGE OF 1400 TO 1800*F. AND AT A
Claim 2
Dependent Claim
125 words
A PROCESS FOR PRODUCING PIPELINE GAS FROM COALY SOLIDS, WHICH PROCESS COMPRISES (A) INTRODUCING SAID SOLIDS INTO A HYDROGASIFICATION ZONE WHEREIN BETWEEN 20 AND 70 WEIGHT PERCENT THEREOF IS REACTED WITH HYDROGEN AND STEAM AT A TEMPERAURE IN THE RANGE OF 1200 TO 2000*F. AND AT A PRESSURE IN THE RANGE OF 50 TO 150 ATMOSPHERES TO YIELD GAS A COMPRISING METHANE, HYDROGEN, AND CARBON MONOOXIDE, (B) RECOVERING SAID GAS A FROM SAID HYDROGASIFICATION ZONE, (C) SEPARATELY RECOVERING THE REMAINDER OF SAID SOLIDS FROM SAID HYDROGASIFICATION ZONE, (D) GASIFYING AT LEAST A PORTION OF THE RECOVERED SOLIDS WITH STEAM IN THE PRESENCE OF A CARBON DIOXIDE ACCEPTOR IN A GASIFICATION ZONE MAINTAINED AT A TEMPERATURE IN THE RANGE OF 1400 TO 1800*F. AND AT A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |