US3294675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for automatic addition of finely divided particles to a fluidizing contacting system
Assignee: Universal Oil Products Co
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Filing: 1964-05-20
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Granted: 1966-12-27
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Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Frank H Adams
- 👤 Leslie C Hardison
- 👤 Paul J Kuchar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:45
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G11/187; Y; Y10; Y10S; Y10S208/00; Y10S208/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A FLUIDIZED CATALYST SYSTEM WHEREIN FINELY DIVIDED CATALYST PARTICLES ARE INTRODUCED INTO A REACTION ZONE TO EFFECT THE CONTACTING AND CONVERSION OF A CHARGE STREAM THEREIN, RESULTING CONTACTED CATALYST PARTICLES ARE SUBJECTED TO A FLUIDIZED CONTACT WITH AN AIR STREAM BEING INTRODUCED INTO A SEPARATE, AND REGENERATION ZONE, AND REGENERATED CATALYST PARTICLES ARE RETURNED TO THE REACTION ZONE FOR REUSE THEREIN, THE IMPROVED METHOD OF ADDING CATALYST PARTICLES TO THE SYSTEM FROM A STORAGE ZONE TO REPLACE LOSSES FROM THE SYSTEM BY REASON OF ENTRAINMENT WITH A PRODUCT STREAM LEAVING THE REACTION ZONE AND A FLUE GAS STREAM LEAVING THE REGENERATION ZONE, WHICH METHOD COMPRISES THE STEPS OF INTRODUCING A JET-LIKE AIR STREAM UPWARDLY INTO THE LOWER PORTION OF SAID STORAGE ZONE CONTAINING A BED OF FRESH CATALYST PARTICLES, ENTRAINING PARTICLES IN SAID JET STREAM AND CARRYINF THEM IN A FLUIDIZED CONFINED COLUMN UPWARDLY FROM SAID STORAGE ZONE INTO A TRANSFER LINE, AL-
Claim 2
Dependent Claim
154 words
IN A FLUIDIZED CATALYST SYSTEM WHEREIN FINELY DIVIDED CATALYST PARTICLES ARE INTRODUCED INTO A REACTION ZONE TO EFFECT THE CONTACTING AND CONVERSION OF A CHARGE STREAM THEREIN, RESULTING CONTACTED CATALYST PARTICLES ARE SUBJECTED TO A FLUIDIZED CONTACT WITH AN AIR STREAM BEING INTRODUCED INTO A SEPARATE, AND REGENERATION ZONE, AND REGENERATED CATALYST PARTICLES ARE RETURNED TO THE REACTION ZONE FOR REUSE THEREIN, THE IMPROVED METHOD OF ADDING CATALYST PARTICLES TO THE SYSTEM FROM A STORAGE ZONE TO REPLACE LOSSES FROM THE SYSTEM BY REASON OF ENTRAINMENT WITH A PRODUCT STREAM LEAVING THE REACTION ZONE AND A FLUE GAS STREAM LEAVING THE REGENERATION ZONE, WHICH METHOD COMPRISES THE STEPS OF INTRODUCING A JET-LIKE AIR STREAM UPWARDLY INTO THE LOWER PORTION OF SAID STORAGE ZONE CONTAINING A BED OF FRESH CATALYST PARTICLES, ENTRAINING PARTICLES IN SAID JET STREAM AND CARRYINF THEM IN A FLUIDIZED CONFINED COLUMN UPWARDLY FROM SAID STORAGE ZONE INTO A TRANSFER LINE, AL-
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |