US4236464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incineration of noxious materials
Assignee: Aerojet Rocketdyne Inc
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Filing: 1978-03-06
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Granted: 1980-12-02
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Expires: 1998-03-06
Abstract
Abstract A combustion method and apparatus for disposal of materials that release noxious, corrosive, and/or toxic gases when burned, particularly halogens and/or acidic gases, is disclosed herein. In the disclosed system, a waste material is burned, the gaseous products of that combustion are cooled, and the cooled gases are then contacted with an alkaline substance of a Periodic Table Group I.A or II.A element in a fluidized bed to scavenge the noxious, corrosive, and/or toxic components in the combustion products.
Inventors
- 👤 Roger E. Anderson
- 👤 Eugene M. Vander Wall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:10
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/68; B01D53/70; F; F23; F23G; F23G7/00; F23J; F23J15/00; F23J15/02; F23J15/06; F23J2215/00; F23J2215/30; Y; Y10; Y10S; Y10S588/00; Y10S588/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A system for incineration of materials containing halogen or acidic gas constituents comprising: a combustion chamber lined with a ceramic material to minimize combustion gas corrosion; a cooling chamber also lined with a ceramic material to minimize combustion gas corrosion for receiving and cooling gases from said combustion chamber; means for injecting coolant fluid into said cooling chamber along both a first path for mixing with and cooling gases from said combustion chamber, and a second path for containing said combustion gases to further minimize contact and corrosion of said cooling chamber; a non-recirculating type fluidized bed scavenging reactor for receiving said cooled combustion gases such that said gases fluidize particulate bed material in said reactor; and means for receiving, cooling and filtering combustion gases from said fluidized bed reactor.
Claim 2
Independent Claim
130 words
A system for incineration of materials containing halogen or acidic gas constituents comprising: a combustion chamber lined with a ceramic material to minimize combustion gas corrosion; a cooling chamber also lined with a ceramic material to minimize combustion gas corrosion for receiving and cooling gases from said combustion chamber; means for injecting coolant fluid into said cooling chamber along both a first path for mixing with and cooling gases from said combustion chamber, and a second path for containing said combustion gases to further minimize contact and corrosion of said cooling chamber; a non-recirculating type fluidized bed scavenging reactor for receiving said cooled combustion gases such that said gases fluidize particulate bed material in said reactor; and means for receiving, cooling and filtering combustion gases from said fluidized bed reactor.
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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) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |