US4737610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the desorption of an adsorption agent that is loaded with noxious material
Assignee: KRAUSS GERNOT
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Filing: 1986-03-28
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Granted: 1988-04-12
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Expires: 2006-03-28
Abstract
Abstract A method and apparatus for desorbing a granular carbonaceous adsorption agent that is loaded with noxious materials, and in particular for desorbing activated coke loaded with sulfur oxides and/or nitrogen oxides from flue gases. The adsorption agent is heated to the desorption temperature by subjecting the granules of the agent to radiation which is absorbed directly by the granules, thereby releasing gaseous noxious materials from the desorption agent. The released desorbed gaseous noxious materials are collected, and the desorbed adsorption agent is cooled.
Inventors
- 👤 Herbert Kotsch
- 👤 Gernot Krauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:51
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D53/08; B01D2253/00; B01D2253/10; B01D2253/102; B01D2257/00; B01D2257/30; B01D2257/302; B01D2257/40; B01D2257/404; B01D2258/00; B01D2258/02; B01D2258/0283; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40077; B01D2259/40081; B01D2259/40083; B01D2259/40086; B01D2259/40088; B01D2259/40094; B01D53/04; B01D53/0462
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
69 words
A method of desorbing a granular carbonaceous adsorption agent that is loaded with noxious materials, said method including the steps of: heating said loaded adsorption agent to the desorption temperature by subjecting the granules of said adsorption agent to radiation, which is absorbed directly by said granules, thereby releasing gaseous noxious materials from said adsorption agent; collecting the released desorbed gaseous noxious materials; and cooling the desorbed adsorption agent.
Claim 2
Independent Claim
69 words
A method of desorbing a granular carbonaceous adsorption agent that is loaded with noxious materials, said method including the steps of: heating said loaded adsorption agent to the desorption temperature by subjecting the granules of said adsorption agent to radiation, which is absorbed directly by said granules, thereby releasing gaseous noxious materials from said adsorption agent; collecting the released desorbed gaseous noxious materials; and cooling the desorbed adsorption agent.
Claim 3
Dependent Claim
21 words
A method according to claim 1, in which said heating step includes radiating said granules of said adsorption agent with microwaves.
Claim 4
Dependent Claim
58 words
A method according to claim 1, in which said collecting step includes driving released desorbed gaseous noxious materials out of said adsorption agent, which has been heated via radiation, by means of a circulated stream of inert gas; and which includes the step of withdrawing from said circulation desorbed gaseous noxious materials in concentrated form with inert gas.
Claim 5
Dependent Claim
15 words
A method according to claim 3, in which said inert gas is N 2 .
Claim 6
Dependent Claim
23 words
A method according to claim 3, which includes the step of additionally heating said circulated inert gas stream with driven-out gaseous noxious material.
Claim 7
Dependent Claim
31 words
A method according to claim 3, which includes the step of directly cooling desorbed adsorption agent with inert gas after said noxious materials have been driven out of said adsorption agent.
Claim 8
Dependent Claim
30 words
A method according to claim 3, which includes the step of introducing inert gas into the desorption and cooling zones countercurrent to the direction of movement of said adsorption agent.
Claim 9
Independent Claim
74 words
A apparatus for desorbing a granular carbonaceous adsorption agent that is loaded with noxious materials, said apparatus comprising: a heating unit that includes at least one radiation-emitting device, the radiation of which is adsorbed by the granules of said adsorption agent to thereby release gaseous noxious materials from the latter; a desorption gas collector disposed below said radiation-emitting device for collecting released gaseous noxious materials; and a cooler disposed below said desorption gas collector.
Claim 10
Independent Claim
74 words
A apparatus for desorbing a granular carbonaceous adsorption agent that is loaded with noxious materials, said apparatus comprising: a heating unit that includes at least one radiation-emitting device, the radiation of which is adsorbed by the granules of said adsorption agent to thereby release gaseous noxious materials from the latter; a desorption gas collector disposed below said radiation-emitting device for collecting released gaseous noxious materials; and a cooler disposed below said desorption gas collector.
Claim 11
Dependent Claim
15 words
An apparatus according to claim 8, in which said radiation-emitting device is a microwave emitter.
Claim 12
Dependent Claim
53 words
An apparatus according to claim 8, in which said heating unit has an end to which said loaded adsorption agent is fed, with inert gas being supplied to this end; and in which said cooler has an end from which desorbed adsorption agent is withdrawn, with inert gas being supplied to this end.
Claim 13
Dependent Claim
36 words
An apparatus according to claim 10, in which a circulation of inert gas and desorption gas is provided for said gas collector, and a circulation of inert gas, as cooling gas, is provided for said cooler.
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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) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |