US3792981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic reactor
Assignee: Phillips Petroleum Co
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Filing: 1971-09-15
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Granted: 1974-02-19
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Expires: 1991-09-15
Abstract
Abstract A plurality of vertically elongated tubular members are disposed within the shell of a catalytic reactor above a grating, and a bed of catalyst is supported by the grating and fills in the volume around the tubular members. Ethylene is purified from small quantities of acetylene by contact with a palladium on alpha alumina catalyst at a critical space velocity range of 5,500 to 6,000.
Inventors
- 👤 G Hettick
- 👤 D Little
- 👤 R Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:24
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; C; C07; C07C; C07C7/00; C07C7/148; C07C7/163; C07C7/167; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/926
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
The catalytic reactor of claim 1 wherein said shell has a transverse baffle below said catalyst bed, thereby defining a lower section in the reactor shell, a second set of tubular members sUpported within a catalyst bed in said lower section, said second set of tubular members being similar to said first set of tubular members, a cooler, and means for passing fluid to be converted through one catalyst bed, the cooler and the other catalyst bed.
References Cited (Backward Citations)
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US2263363A
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US2281527A
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US2212583A
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US2376356A
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US2897064A
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US3307921A
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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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |