US3825501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exothermic reaction process
Assignee: Texaco Inc
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Filing: 1971-12-17
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Granted: 1974-07-23
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Expires: 1991-12-17
Abstract
Abstract A STREAM OF FLUID REACTANTS IS PASSED THROUGH CATALYST WHEREIN THE REACTANTS UNDERGO A TEMPERATURE CONTROLLED EXOTHERMIC REACTION SO AS TO PRODUCE MAXIMUM CONVERSION. THE TEMPERATURE OF THE REACTING STREAM IS CONTROLLED BY TWO SEPARATE STREAMS OF COOLANTS WHICH ARE SEPARATELY PASSED THROUGH TWO SEPARATE HEAT EXCHANGERS EMBEDDED IN SAID CATALYST IN CONCURRENT FLOW AND INDIRECT HEAT EXCHANGE WITH THE REACTING STREAM. THE FIRST STREAM OF COOLANT MAY BE WATER OR AN ORGANIC LIQUID FROM AN EXTERNAL SOURCE. THE SECOND STREAM OF COOLANT IS A PORTION OF UNREACTED FEEDSTREAM BEFORE IT IS INTRODUCED INTO THE CATALYST WHERE IT UNDERGOES EXOTHERMIC REACTION AS PREVIOUSLY DESCRIBED.
Inventors
- 👤 J Muenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:34
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/0285; C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B3/16; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00115; B01J2208/00132
Claims Analysis
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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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |