US4509434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Procedure and equipment for destroying waste by plasma technique
Assignee: HUNGAROPLAZMA KORNYEZETVEDELMI SZOLGALTATO KFT
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Filing: 1983-11-28
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Granted: 1985-04-09
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Expires: 2003-11-28
Abstract
Abstract Fluid waste material is completely atomized and decomposed in a burner wherein the material to be decomposed and an oxidizing agent are maintained at a suitable relative ratio at every point in the burner so that waste transforms into a stable combustion product. Catalysts or other subsidiary materials are not required. The oxidizing agent may be air, air enriched with oxygen, or oxygen, and plasma is produced from the air or from the waste material itself. Water may be introduced into the plasma to promote the formation of hydrogen halogenides if the waste material itself contains halogens. The atomized gases may be deacidified and washed.
Inventors
- 👤 Otto Boday
- 👤 Andras Herpay
- 👤 Ferenc Krajcsovics
- 👤 Istvan Neveri
- 👤 Sandor Pete
- 👤 Ferenc Pocsy
- 👤 Bela Szikora
- 👤 Endre Szirmai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:49
CPC Classifications
A; A62; A62D; A62D3/00; A62D3/10; A62D3/19; F; F23; F23G; F23G5/00; F23G5/08; F23G5/085; A62D2101/00; A62D2101/20; A62D2101/22; A62D2101/26; A62D2101/28; A62D2203/00; A62D2203/10; F23G2204/00; F23G2204/20; F23G2204/201; Y; Y02; Y02E; Y02E20/00; Y02E20/12; Y02E20/34; Y10; Y10S; Y10S588/00; Y10S588/90
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
Apparatus for destroying fluid waste containing vaporizable organic materials, comprising a plasma generator; a plasma reactor comprising a gas permeable ceramic pipe axially arranged with respect to said generator to receive in one end the plasma torch produced by said generator, and a metallic outer housing spaced from said pipe, means for introducing cooling gas into said housing surrounding said pipe and passing therethrough into contact with the plasma, said reactor having inlet means for the introduction into one end of said ceramic pipe organic waste vapor and preheated oxygen to react with said plasma completely within said ceramic pipe, and outlet means at the other end of said ceramic pipe for the removal of the reaction end products; and gas washing means for cooling the end products removed from said reactor.
Claim 2
Dependent Claim
132 words
Apparatus for destroying fluid waste containing vaporizable organic materials, comprising a plasma generator; a plasma reactor comprising a gas permeable ceramic pipe axially arranged with respect to said generator to receive in one end the plasma torch produced by said generator, and a metallic outer housing spaced from said pipe, means for introducing cooling gas into said housing surrounding said pipe and passing therethrough into contact with the plasma, said reactor having inlet means for the introduction into one end of said ceramic pipe organic waste vapor and preheated oxygen to react with said plasma completely within said ceramic pipe, and outlet means at the other end of said ceramic pipe for the removal of the reaction end products; and gas washing means for cooling the end products removed from said reactor.
Claim 3
Dependent Claim
47 words
The apparatus according to claim 1, wherein said means for introducing the cooling gas includes a source of said gas and an inlet located adjacent the end where said reaction end products are removed, so that said gas flows counter-current to the plasma flow within said housing.
Claim 4
Dependent Claim
13 words
The apparatus according to claim 1 includes means for pre-warming said cooling gas.
Claim 5
Dependent Claim
42 words
The apparatus according to claim 1, including a heat exchanger interposed between the outlet end of said reactor and said gas washing equipment, said heat exchanger preheating said organic waste and said oxygen with the heat content of said reaction end products.
Claim 6
Dependent Claim
144 words
Apparatus for destroying fluid waste containing vaporizable organic materials, comprising a plasma generator; a plasma reactor comprising a ceramic pipe axially arranged with respect to said generator to receive in one end the plasma torch produced by said generator, and a metallic outer housing spaced from said pipe; and having inlet means for the introduction into one end of said ceramic pipe organic waste vapor and preheated oxygen to react with said plasma completely within said ceramic pipe, and outlet means at the other end of said ceramic pipe for the removal of the reaction end products, gas washing means for cooling the end products removed from said reactor, a heat exchanger interposed between the outlet end of said reactor and said gas washing equipment, said heat exchanger preheating said organic waste and said oxygen with the heat content of said reaction end products.
Claim 7
Dependent Claim
144 words
Apparatus for destroying fluid waste containing vaporizable organic materials, comprising a plasma generator; a plasma reactor comprising a ceramic pipe axially arranged with respect to said generator to receive in one end the plasma torch produced by said generator, and a metallic outer housing spaced from said pipe; and having inlet means for the introduction into one end of said ceramic pipe organic waste vapor and preheated oxygen to react with said plasma completely within said ceramic pipe, and outlet means at the other end of said ceramic pipe for the removal of the reaction end products, gas washing means for cooling the end products removed from said reactor, a heat exchanger interposed between the outlet end of said reactor and said gas washing equipment, said heat exchanger preheating said organic waste and said oxygen with the heat content of said reaction end products.
Claim 8
Dependent Claim
37 words
The apparatus according to claim 5, wherein said ceremic pipe is permeable to gas, and said reactor includes means for introducing cooling gas into said housing surrounding said pipe and passing therethrough into contact with the plasma.
Claim 9
Dependent Claim
47 words
The apparatus according to claim 5, wherein said means for introducing the cooling gas includes a source of said gas and an inlet located adjacent the end where said reaction end products are removed, so that said gas flows counter-current to the plasma flow within said housing.
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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) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |