US2844522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of heat supply for a catalytic hydroforming process through the use of inert heat-carrying material
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-12-31
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Granted: 1958-07-22
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Expires: 1972-12-31
Abstract
No abstract record available.
Inventors
- 👤 Walter A Rex
- 👤 Charles E Jahnig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:28
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/10; C10G35/14; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1845; B01J8/1863; B01J8/24; B01J8/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD OF SUPPLYING HEAT TO AN ENDOTHERMIC HYDROFORMING PROCESS FOR THE CATALYTIC TREATMENT OF A HYDROCARBON FEED STOCK INVOLVING THE USE OF A FINELY DIVIDED SOLID CATALYST CONTAINING PARTICLES WITHIN THE SIZE RANGE OF ABOUT 20 TO 100 MICRONS IN DIAMETER, WHICH COMPRISES MAINTAINING SAID CATALYST IN THE FORM OF A TURBULENT FLUID BED WITHIN A DEEP REACTION ZONE BY UPFLOWING VAPOR, CONTINUOUSLY INTRODUCING INTO SAID FLUID BED RELATIVELY COARSE SOLID PARTICLES OF HOT INERT HEATCARRYING MATERIAL HAVING AT LEAST THE SAME PARTICLE DENSITY AS THE FLUIDIZED CATALYST AND A PARTICLE DIAMETER WITHIN THE RANGE FROM ABOUT 300 TO 700 MICRONS, CONTINUOUSLY REMOVING FROM THE BOTTOM OF THE SAID REACTION ZONE A
Claim 2
Independent Claim
113 words
THE METHOD OF SUPPLYING HEAT TO AN ENDOTHERMIC HYDROFORMING PROCESS FOR THE CATALYTIC TREATMENT OF A HYDROCARBON FEED STOCK INVOLVING THE USE OF A FINELY DIVIDED SOLID CATALYST CONTAINING PARTICLES WITHIN THE SIZE RANGE OF ABOUT 20 TO 100 MICRONS IN DIAMETER, WHICH COMPRISES MAINTAINING SAID CATALYST IN THE FORM OF A TURBULENT FLUID BED WITHIN A DEEP REACTION ZONE BY UPFLOWING VAPOR, CONTINUOUSLY INTRODUCING INTO SAID FLUID BED RELATIVELY COARSE SOLID PARTICLES OF HOT INERT HEATCARRYING MATERIAL HAVING AT LEAST THE SAME PARTICLE DENSITY AS THE FLUIDIZED CATALYST AND A PARTICLE DIAMETER WITHIN THE RANGE FROM ABOUT 300 TO 700 MICRONS, CONTINUOUSLY REMOVING FROM THE BOTTOM OF THE SAID REACTION ZONE A
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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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |