Method of treating process or flue gases containing halogenous compounds
US5380507A · kind A · utility
9Cited by
7References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 20, 1992 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Jul 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of cooling hot flue or process gases containing halogenous compounds in two successively located circulating fluidized bed reactors. In the first reactor the gases are cooled to a temperature of >400.degree. C. In the second reactor the gases are rapidly cooled to below a temperature zone of 250.degree.-400.degree. C. In the first reactor the gases are brought into contact with a catalytic material capable of destroying polyhalogenous compounds. A retention time of 1-10 seconds, preferably 2-5 seconds, is provided for the gases in the first reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.