US2847360A
Expired / Lapsed
US
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Hydroforming process with temperature gradients
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-10-05
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Granted: 1958-08-12
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Expires: 1973-10-05
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hemminger
- 👤 Homer Z Martin
- 👤 Jr Wilson C Rich
- 👤 Edward J Gornowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:03
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/10; C10G35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A PROCESS FOR HYDROFORMING PETROLEUM NAPHATHAS IN CONTACT WITH FINELY DIVIDED HYDROFORMING CATALYST PARTICLES IN ACCORDANCE WITH THE FLUIDIZED SOLIDS TECHNIQUE, THE IMPROVEMENT WHICH COMPRISES MAINTAINIG TEMPERATURE GRADIENTS IN THE REACTOR BY FEEDING NAPHTHA RECTANT VAPORS TO A LOWER PORTION OF A VERTICAL REACTOR CONTAINING A PLURALITY OF SUPERIMPOSED BEDS OF FLUIDIZED SOLIDS CATALYSTS AT REACTION TEMPERATURE WITHIN THE RANGE OF ABOUT 800* TO 100*F., PASSING THE RECTANT VAPORS UPWARDLY THROUGH SUCCESSIVE ZONES CONTAINING THE BEDS OF CATALYST; INTRODUCING HOT RECYCLE GAS AT A TEMPEATURE BETWEEN ABOUT 1000* AND 130*F. AND HOT REGENERATED CATALYST
Claim 2
Dependent Claim
95 words
IN A PROCESS FOR HYDROFORMING PETROLEUM NAPHATHAS IN CONTACT WITH FINELY DIVIDED HYDROFORMING CATALYST PARTICLES IN ACCORDANCE WITH THE FLUIDIZED SOLIDS TECHNIQUE, THE IMPROVEMENT WHICH COMPRISES MAINTAINIG TEMPERATURE GRADIENTS IN THE REACTOR BY FEEDING NAPHTHA RECTANT VAPORS TO A LOWER PORTION OF A VERTICAL REACTOR CONTAINING A PLURALITY OF SUPERIMPOSED BEDS OF FLUIDIZED SOLIDS CATALYSTS AT REACTION TEMPERATURE WITHIN THE RANGE OF ABOUT 800* TO 100*F., PASSING THE RECTANT VAPORS UPWARDLY THROUGH SUCCESSIVE ZONES CONTAINING THE BEDS OF CATALYST; INTRODUCING HOT RECYCLE GAS AT A TEMPEATURE BETWEEN ABOUT 1000* AND 130*F. AND HOT REGENERATED CATALYST
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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |