US3903016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for regenerating catalyst in a fluidized bed with a restricted high turbulence region in the dispersed phase
Assignee: Mobil Oil AS
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Filing: 1973-05-04
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Granted: 1975-09-02
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Expires: 1993-05-04
Abstract
Abstract Apparatus and the method of utilizing the apparatus for the regeneration of catalyst is described wherein spent catalyst is introduced adjacent the upper interface of a dense fluid bed of regenerated catalyst and carried in a substantial amount into a dispersed catalyst phase; regeneration gas introduced to a lower portion of said dense fluid catalyst bed and the dispersed catalyst phase complete the conversion of carbonaceous material to carbon dioxide; an inverted conical member positioned in the dispersed catalyst phase funnels catalyst dispersed in flue gas through a restricted opening promoting turbulence before entering the upper part of the regenerator housing cyclonic separation means; oxygen containing gas introduced to the dispersed catalyst phase at the restricted opening promotes the conversion of carbon monoxide and catalyst particles separated from flue gases above the conical baffle are returned as an annular stream to the dense catalyst bed adjacent the regenerator wall.
Inventors
- 👤 Hartley Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:59
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G11/182; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1872; Y; Y02; Y02P; Y02P30/00; Y02P30/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
167 words
A METHOD FOR REGENERATING FINELY DIVIDED SOLID CATALYST PARTICLES CONTAINING CARBONACEOUS DEPOSITS WHICH COMPRISES, MAINTAINING A DENSE FLUID BED OF SOLID CATALYST PARTICLES IN THE LOWER PORTION OF A REGENERATION ZONE AND A DIPERSED PHASE OF CATALYST PARTICLES THEREABOVE BY PASSING AN OXYGEN CONTAINING REGENERATION GAS UPWARDLY THERETHROUGH, PASSING GASEOUS PRODUCTS OF REGENERATION WITH ENTERAINED SOLID CATALYST PARTICLES INTO SAID DIPERSED PHASE OF CATALYST PARTICLES ABOVE SAID DENSE FLUID BED OF CATALYST PARTICLES AND THROUGH ONE OR MORE COAXIALLY POSITIONED RESTRICTED CIRCULAR OPENINGS OF HIGH TURBULENCE, INTRODUCING CATALYST PARTICLES CONTAINING CARBONACEOUS DEPOSITS INTO AN UPPER PORTION OF SAID DENSE FLUID BED OF CATALYST PARTICLES, WITHDRAWING REGENERATED CATALYST PARTICLES FROM A LOWER PORTION OF SAID DENSE FLUID BED OF PARTICLES, INTRODUCING ADDITIONAL OXYGEN CONTAINING REGENERATION GAS INTO SAID GASEOUS PRODUCTS PASSING THROUGH SAID RESTRICTED OPENINGS OF HIGH TURBULENCE UNDER CONDITIONS TO PROMOTE CONVERSION OF CARBON MONOXIDE TO CARBON DIOXIDE AND RETURNING CATALYST PARTICLES SEPARATED FROM GASEOUS PRODUCTS ABOVE SAID RESTRICTED OPENINGS TO SAID DENSE FLUID BED OF PARTICLES.
Claim 2
Independent Claim
167 words
A METHOD FOR REGENERATING FINELY DIVIDED SOLID CATALYST PARTICLES CONTAINING CARBONACEOUS DEPOSITS WHICH COMPRISES, MAINTAINING A DENSE FLUID BED OF SOLID CATALYST PARTICLES IN THE LOWER PORTION OF A REGENERATION ZONE AND A DIPERSED PHASE OF CATALYST PARTICLES THEREABOVE BY PASSING AN OXYGEN CONTAINING REGENERATION GAS UPWARDLY THERETHROUGH, PASSING GASEOUS PRODUCTS OF REGENERATION WITH ENTERAINED SOLID CATALYST PARTICLES INTO SAID DIPERSED PHASE OF CATALYST PARTICLES ABOVE SAID DENSE FLUID BED OF CATALYST PARTICLES AND THROUGH ONE OR MORE COAXIALLY POSITIONED RESTRICTED CIRCULAR OPENINGS OF HIGH TURBULENCE, INTRODUCING CATALYST PARTICLES CONTAINING CARBONACEOUS DEPOSITS INTO AN UPPER PORTION OF SAID DENSE FLUID BED OF CATALYST PARTICLES, WITHDRAWING REGENERATED CATALYST PARTICLES FROM A LOWER PORTION OF SAID DENSE FLUID BED OF PARTICLES, INTRODUCING ADDITIONAL OXYGEN CONTAINING REGENERATION GAS INTO SAID GASEOUS PRODUCTS PASSING THROUGH SAID RESTRICTED OPENINGS OF HIGH TURBULENCE UNDER CONDITIONS TO PROMOTE CONVERSION OF CARBON MONOXIDE TO CARBON DIOXIDE AND RETURNING CATALYST PARTICLES SEPARATED FROM GASEOUS PRODUCTS ABOVE SAID RESTRICTED OPENINGS TO SAID DENSE FLUID BED OF PARTICLES.
Claim 3
Dependent Claim
43 words
The method of claim 1 wherein the entrained catalyst is heated by conversion of carbon monoxide to carbon dioxide and heated catalyst particles are returned to said dense fluid from said dispersed phase of catalyst outside of said restricted opening of high turbulence.
Claim 4
Dependent Claim
37 words
The method of claim 1 wherein the entrained catalyst is heated by conversion of carbon monoxide to carbon dioxide and heated catalyst particles are returned to said dense phase of catalyst through said restricted opening of turbulence.
Claim 5
Dependent Claim
34 words
The method of claim 1 wherein entrained catalyst particles are separated from gaseous products by cyclonic separation and separated catalyst is returned to a lower portion of said dense fluid bed of catalyst particles.
Claim 6
Dependent Claim
43 words
The method of claim 1 wherein catalyst particles are separated from gaseous products of regeneration in said dispersed phase of catalyst and the separated catalyst is returned to the periphery of the dense fluid bed of catalyst as an annular curtain of particles.
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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |