Patent US4436701A successfully refreshed from Google Patents.
US4436701A
Expired / Lapsed
US
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Adsorption reactor and method for removing SO2 from waste gases
Assignee: Bergwerksverband GmbH
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Filing: 1982-09-29
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Granted: 1984-03-13
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Expires: 2002-09-29
Abstract
Abstract Waste gases pass through a bed of grained adsorption medium moving in a substantially down-stream direction, in a direction which is transverse to the bed movement direction, and a heat exchanger is inserted in the bed of the grained adsorption medium.
Inventors
- 👤 Ekkehard Richter
- 👤 Martin Reinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:57
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0438; B01D53/06; B01D53/08; B01J8/087; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2253/108; B01D2253/116; B01D2253/30; B01D2253/302; B01D2253/306; B01D2257/00; B01D2257/30; B01D2257/302; B01D2258/00; B01D2258/02; B01D2258/0283; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00115; B01J2208/00132
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
An adsorption reactor for removing SO 2 and the like from waste gases, comprising a single bed of a grained adsorption medium moving in a substantially downward direction and arranged so that waste gases pass through said bed in a gas flow direction transversely of the adsorption medium movement direction; and a temperature separating permeable member formed by heat exchanger tubes inserted in said single bed of a grained adsorption medium and subdividing said single bed into at least a first adsorption layer located upstream of said heat exchanger pipes in said gas flow direction so that waste gases pass said first adsorption layer at a higher temperature, and a second adsorption layer located transversely adjacent to said first adsorption layer and downstream of said heat exchanger pipes in said gas flow direction so that the waste gases pass second adsorption layer at a lower temperature.
Claim 2
Dependent Claim
146 words
An adsorption reactor for removing SO 2 and the like from waste gases, comprising a single bed of a grained adsorption medium moving in a substantially downward direction and arranged so that waste gases pass through said bed in a gas flow direction transversely of the adsorption medium movement direction; and a temperature separating permeable member formed by heat exchanger tubes inserted in said single bed of a grained adsorption medium and subdividing said single bed into at least a first adsorption layer located upstream of said heat exchanger pipes in said gas flow direction so that waste gases pass said first adsorption layer at a higher temperature, and a second adsorption layer located transversely adjacent to said first adsorption layer and downstream of said heat exchanger pipes in said gas flow direction so that the waste gases pass second adsorption layer at a lower temperature.
Claim 3
Dependent Claim
25 words
An adsorption reactor as defined in claim 1, wherein said bed of a grained adsorption medium is substantially tubular, said heat exchanger being also tubular.
Claim 4
Dependent Claim
27 words
An adsorption reactor as defined in claim 1, wherein said heat exchanger includes a row of heat exchanging pipes, arranged in said bed of an adsoprtion medium.
Claim 5
Dependent Claim
45 words
An adsorption reactor as defined in claim 3, said heat exchanger includes a second row of heat exchanging pipe, said rows of heat exchanging pipes being spaced from one another in a direction of passage of waste gases through the bed of an adsorption medium.
Claim 6
Independent Claim
141 words
A method of adsorption for removing SO 2 and the like from waste gases, comprising the steps of passing waste gases through a single bed of a grained adsorption medium moving from above downwardly, in a gas passage direction transversely of the adsorption medium movement direction; and arranging a temperature separating permeable member formed by a heat exchanger in the bed of the grained adsorption medium and subdividing said single bed into at least a first adsorption layer located upstream of the heat exchanger pipes in said gas flow direction so that waste gases pass said first adsorption layer at a higher temperature, and a second adsorption layer located transversely adjacent to said first adsorption layer and downstream of said heat exchanger pipes on said gas flow direction so that the waste gases pass second adsorption layer at a lower temperature.
Claim 7
Independent Claim
141 words
A method of adsorption for removing SO 2 and the like from waste gases, comprising the steps of passing waste gases through a single bed of a grained adsorption medium moving from above downwardly, in a gas passage direction transversely of the adsorption medium movement direction; and arranging a temperature separating permeable member formed by a heat exchanger in the bed of the grained adsorption medium and subdividing said single bed into at least a first adsorption layer located upstream of the heat exchanger pipes in said gas flow direction so that waste gases pass said first adsorption layer at a higher temperature, and a second adsorption layer located transversely adjacent to said first adsorption layer and downstream of said heat exchanger pipes on said gas flow direction so that the waste gases pass second adsorption layer at a lower temperature.
Claim 8
Dependent Claim
70 words
A method as defined in claim 5, wherein said passing step includes admitting waste gases with a temperature above substantially 120° C., passing through a first region of the bed of a grained adsorption medium with fluid-cooling, and further passing the waste gases through at least one further region of said bed of a grained adsorption medium before it leaves the same with a temperature of below substantially 120° C.
Claim 9
Dependent Claim
40 words
A method as defined in claim 6; and further comprising the step of increasing cooling between the regions of the bed of a grained adsorption medium, in a direction of passage of gases through the bed of an adsorption medium.
Claim 10
Dependent Claim
21 words
A method as defined in claim 6, wherein said fluid-cooling step includes utilization of a cooling fluid for remote thermal heating.
References Cited (Backward Citations)
US1453754A
Cited
US2493218A
Cited
US3177631A
Cited
US3833051A
Cited
US3789110A
Cited
US3862295A
Cited
US4083701A
Cited
DE2626939A1
Cited
US4255403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |