US2619449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of catalyst production and utilization
Assignee: Standard Oil Development Co
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Filing: 1948-12-30
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Granted: 1952-11-25
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Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 Sumner B Sweetser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:22
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; C; C10; C10J; C10J3/00; C10J3/46; C10J3/48; C10J3/482; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
178 words
THE PROCESS OF PRODUCING A HIGH CALORIFIC FUEL GAS WHICH COMPRISES PASSING A STREAM OF FINELY DIVIDED CARBONACEOUS SOLIDS SELECTED FROM THE GROUP CONSISTING OF COAL AND COKE SAND STREAM INTO A WATER GAS GENERATION ZONE, MAINTAINING SAID SOLIDS IN SAID ZONE AS A FLUIDIZED BED AT WATER GAS GENERATION CONDITIONS, WITHDRAWING FROM SAID ZONE A GAS RICH IN CO AND H2, WITHDRAWING FROM SAID ZONE A STREAM OF CARBONACEOUS SOLID PARTICLES OF HIGH SURFACE AREA, PASSING AT LEAST A PORTION OF SAID SOLID PARTICLE STREAM INTO A HYDROCARBON CONVERSION ZONE, MAINTAINING A FLUIDIZED BED OF SAID PARTICLES IN SAID ZONE, CONTACTING SAID PARTICLES WITH HYDROCARBONS AT TEMPERATURES OF FROM ABOUT 950* TO 1100* F. IN SAID CONVERSION ZONE, WITHDRAWING SAID PARTICLES FROM SAID ZONE, INJECTING AT LEAST A PORTION OF SAID PARTICLES INTO SAID WATER GAS GENERATION ZONE AT A POINT ABOVE SAID BED SO AS TO STRIP ADSORBED HYDROCARBONS FROM SAID SOLIDS AND CRACK SAID STRIPPED HYDROCARBONS TO LOW MOLECULAR WEIGHT HYDROCARBONS, AND WITHDRAWING SAID CRACKED HYDROCARBONS ALONG WITH A GAS RICH IN CO AND H2.
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) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |