Patent US3048468A successfully refreshed from Google Patents.
US3048468A
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Method for effecting catalyzed reactions
Assignee: Universal Oil Products Co
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Filing: 1956-12-20
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Granted: 1962-08-07
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Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Charles H Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:42
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/16; B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0446; B01J8/0476; B01J8/048; B01J8/0496; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00522
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD FOR EFFECTING A CATALYZED REACTION WHICH COMPRISES INTRODICING REACTANT MATERIAL INTO THE LOWER PORTION OF A VERTICALLY ELONGATED JREACTION ZONE, PASSING SAID REACTANT MATERIAL UPWARDLY THROUGH A SERIES OF VERTICALLY SPACED HORIZONTAL CATALYST BEDS IN SAID ZONE, INTRODUCING A STREAM OF INERT HEAT RETENTIVE PARTICLES INTO THE UPPER PORTION OF SAID REACTION ZONE IN SUFFICIENT QUANTITY AND AT A TEMPERATURE TO MAINTAIN THE DESIRED REACTION TEMPERATURE WITHIN SAID REACTION ZONE, PASSING SAID STREAM OF PARTICLES IN A GENERALLY DOWNWARD DIRECTION THROUGH SAID ZONE COUNTERCURRENT TO SAID REACTANT MATERIAL AND LATERALLY ACROSS THE REACTION ZONE BETWEEN SAID CATALYST BEDS, REMOVING HEAT RETENTIVE PARTICLES FROM THE LOWER PORTION OF SAID REACTION ZONE AND RECOVERING PRODUCT FROM THE UPPER PORTION OF SAID REACTION ZONE.
Claim 2
Independent Claim
123 words
THE METHOD FOR EFFECTING A CATALYZED REACTION WHICH COMPRISES INTRODICING REACTANT MATERIAL INTO THE LOWER PORTION OF A VERTICALLY ELONGATED JREACTION ZONE, PASSING SAID REACTANT MATERIAL UPWARDLY THROUGH A SERIES OF VERTICALLY SPACED HORIZONTAL CATALYST BEDS IN SAID ZONE, INTRODUCING A STREAM OF INERT HEAT RETENTIVE PARTICLES INTO THE UPPER PORTION OF SAID REACTION ZONE IN SUFFICIENT QUANTITY AND AT A TEMPERATURE TO MAINTAIN THE DESIRED REACTION TEMPERATURE WITHIN SAID REACTION ZONE, PASSING SAID STREAM OF PARTICLES IN A GENERALLY DOWNWARD DIRECTION THROUGH SAID ZONE COUNTERCURRENT TO SAID REACTANT MATERIAL AND LATERALLY ACROSS THE REACTION ZONE BETWEEN SAID CATALYST BEDS, REMOVING HEAT RETENTIVE PARTICLES FROM THE LOWER PORTION OF SAID REACTION ZONE AND RECOVERING PRODUCT FROM THE UPPER PORTION OF SAID REACTION ZONE.
References Cited (Backward Citations)
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US2685498A
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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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |