US2546570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidizied bed reactor
Assignee: Phillips Petroleum Co
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Filing: 1948-11-15
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Granted: 1951-03-27
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Expires: 1968-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank P Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:17
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1809; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00115; B01J2208/00123; Y; Y10; Y10S; Y10S159/00; Y10S159/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS FOR CATALYTICALLY TREATING GASEOUS REACTANT IN A DENSE FLUIDIZED CATALYST BED, WHICH COMPRISES INTRODUCING A GAS TO THE BOTTOM OF A REACTION ZONE CONTAINING A PARTICULATE FLUIDIZABLE CATALYST IN ONLY SUFFICIENT QUANTITY TO MAINTAIN THE CATALYST THEREABOVE IN A DENSE FLUIDIZED BED PHASE, INTRODUCING GASEOUS REACTANT TO SAID REACTION ZONE AT AT LEAST ONE POINT ABOVE THE BOTTOM THEREOF AT A SUFFICIENT RATE TO MAINTAIN THE CATALYST ABOVE THE INLET ZONE IN A LESS DENSE FLUIDIZED BED PHASE, AND VARYING THE DEPTH OF SAID LESS DENSE FLUIDIZED CATALYST BED PHASE BY VARYING THE HEIGHT OF THE REACTANT GAS INLET ZONE AND BY INTRODUCING CATALYST TO THE MORE DENSE PHASE WHEN SAID DEPTH IS DECREASED AND REMOVING CATALYST FROM SAID MORE DENSE PHASE WHEN THE DEPTH IS INCREASED.
Claim 2
Dependent Claim
129 words
A PROCESS FOR CATALYTICALLY TREATING GASEOUS REACTANT IN A DENSE FLUIDIZED CATALYST BED, WHICH COMPRISES INTRODUCING A GAS TO THE BOTTOM OF A REACTION ZONE CONTAINING A PARTICULATE FLUIDIZABLE CATALYST IN ONLY SUFFICIENT QUANTITY TO MAINTAIN THE CATALYST THEREABOVE IN A DENSE FLUIDIZED BED PHASE, INTRODUCING GASEOUS REACTANT TO SAID REACTION ZONE AT AT LEAST ONE POINT ABOVE THE BOTTOM THEREOF AT A SUFFICIENT RATE TO MAINTAIN THE CATALYST ABOVE THE INLET ZONE IN A LESS DENSE FLUIDIZED BED PHASE, AND VARYING THE DEPTH OF SAID LESS DENSE FLUIDIZED CATALYST BED PHASE BY VARYING THE HEIGHT OF THE REACTANT GAS INLET ZONE AND BY INTRODUCING CATALYST TO THE MORE DENSE PHASE WHEN SAID DEPTH IS DECREASED AND REMOVING CATALYST FROM SAID MORE DENSE PHASE WHEN THE DEPTH IS INCREASED.
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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |