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US4288409A
Expired / Lapsed
US
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Tubular reactor for carrying out catalytic processes
Assignee: Forschungszentrum Jülich
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Filing: 1979-11-02
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Granted: 1981-09-08
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Expires: 1999-11-02
Abstract
Abstract A tubular reactor, especially for carrying out catalytic processes at highemperatures, wherein the tubular reaction zone is substantially occupied by the catalysts. The catalyst can be withdrawn in its entirety from the reactor tube, is surrounded by a gas-permeable envelope, and is supported by a longitudinal carrier. Preferably, the carrier is formed by a central tube serving for a heat exchanging passage of reaction gas and the envelope is subdivided into a series of closely consecutive catalyst filled baskets each including a wire mesh side wall having perforated front plates, all baskets being threaded on and supported by the central tube.
Inventors
- 👤 Heinrich Fedders
- 👤 Willi Beckers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:45
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/0035; B01J8/02; B01J8/06; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
269 words
A tubular reactor for containing solid catalyst configured in chunks of a certain minimum diameter, the reactor comprising: a vertical tubular support with spaced keys projecting therefrom; a plurality of wire mesh baskets for containing said chunks each of said baskets having a top and bottom and each enclosing an unobstructed circular area, said baskets being mounted vertically on the tubular support in spaced relation with respect to one another and being supported by one of said keys; a top end plate for enclosing the top of each basket, said top end plate having a central opening conforming to the tube, at least one radially projecting slot extending into the plate from the central opening for allowing the key on the tube to pass through; at least one radially projecting stop groove extending into the plate and being angularly spaced from the first slot, the stop groove extending only partially through the plate and facing into the basket whereby one key on the tube rests in the stop groove for supporting the basket on the tube; the top plate further including a plurality of openings therein larger in diameter than the chunks whereby the baskets can be filled through the top plate, and a bottom plate secured to the bottom of the basket, said bottom plate having an opening therethrough with at least one radial key slot whereby the basket may be slid down the tube while clearing the keys, and a plurality of holes in the bottom plate smaller in diameter than the chunks to thereby support the chunks while allowing fluid to flow through the bottom plate.
Claim 2
Dependent Claim
269 words
A tubular reactor for containing solid catalyst configured in chunks of a certain minimum diameter, the reactor comprising: a vertical tubular support with spaced keys projecting therefrom; a plurality of wire mesh baskets for containing said chunks each of said baskets having a top and bottom and each enclosing an unobstructed circular area, said baskets being mounted vertically on the tubular support in spaced relation with respect to one another and being supported by one of said keys; a top end plate for enclosing the top of each basket, said top end plate having a central opening conforming to the tube, at least one radially projecting slot extending into the plate from the central opening for allowing the key on the tube to pass through; at least one radially projecting stop groove extending into the plate and being angularly spaced from the first slot, the stop groove extending only partially through the plate and facing into the basket whereby one key on the tube rests in the stop groove for supporting the basket on the tube; the top plate further including a plurality of openings therein larger in diameter than the chunks whereby the baskets can be filled through the top plate, and a bottom plate secured to the bottom of the basket, said bottom plate having an opening therethrough with at least one radial key slot whereby the basket may be slid down the tube while clearing the keys, and a plurality of holes in the bottom plate smaller in diameter than the chunks to thereby support the chunks while allowing fluid to flow through the bottom plate.
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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |