US2721167A
Expired / Lapsed
US
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Catalytic fluid hydroforming employing inert heat transfer solids
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-04-04
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Granted: 1955-10-18
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Expires: 1971-04-04
Abstract
No abstract record available.
Inventors
- 👤 Edward W S Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:04
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/10; C10G35/14; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1845; B01J8/1863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN THE METHOD OF REFORMING HYDROCARBON FRACTIONS BOILING WITHIN THE NAPHTHA RANGE IN CONTACT WITH A MIXTURE OF FINELY DIVIDED REFORMING CATALYSTS AND INERT HEAT TRANSFER SOLIDS IN A DENSE FLUIDIZED BED THE IMPROVEMENT WHICH COMPRISES WITHDRAWING A STREAM OF INERT HEAT TRANSFER SOLIDS AND A STREAM OF FINELY DIVIDED SPENT CATALYST PARTICLES FROM THE REACTION ZONE, ADDING THE INERT HEAT TRANSFER SOLIDS TO A STREAM OF REGENERATION GAS, DISCHARGING THE STREAM OF SPENT CATALYST PARTICLES INTO MIXTURE OF INERT SOLIDS AND REGENERATION GAS, DISCHARGING THE RESULTANT MIXTURE INTO A REGENERATION ZONE, WITHDRAWING A MIXTURE OF INERT SOLIDS AND REGENERATED CATALYST PARTICLES FROM THE REGENERATION ZONE AND RECYCLING THE SAME TO THE REACTION ZONE.
Claim 2
Dependent Claim
114 words
IN THE METHOD OF REFORMING HYDROCARBON FRACTIONS BOILING WITHIN THE NAPHTHA RANGE IN CONTACT WITH A MIXTURE OF FINELY DIVIDED REFORMING CATALYSTS AND INERT HEAT TRANSFER SOLIDS IN A DENSE FLUIDIZED BED THE IMPROVEMENT WHICH COMPRISES WITHDRAWING A STREAM OF INERT HEAT TRANSFER SOLIDS AND A STREAM OF FINELY DIVIDED SPENT CATALYST PARTICLES FROM THE REACTION ZONE, ADDING THE INERT HEAT TRANSFER SOLIDS TO A STREAM OF REGENERATION GAS, DISCHARGING THE STREAM OF SPENT CATALYST PARTICLES INTO MIXTURE OF INERT SOLIDS AND REGENERATION GAS, DISCHARGING THE RESULTANT MIXTURE INTO A REGENERATION ZONE, WITHDRAWING A MIXTURE OF INERT SOLIDS AND REGENERATED CATALYST PARTICLES FROM THE REGENERATION ZONE AND RECYCLING THE SAME TO THE REACTION ZONE.
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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |