Method of treating process or flue gases containing halogenous c

Details Method of treating process or flue gases containing halogenous c Method of treating process or flue gases containing halogenous c

1992-07-20

1995-01-10

Fuller, Benjamin R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

588206, C01B 700

Patent

active

053805070

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.

REFERENCES:
patent: 4080910 (1978-03-01), Jaccoud
patent: 4215095 (1980-07-01), Harris et al.
patent: 4485081 (1984-11-01), Magistro
patent: 4616576 (1986-10-01), Engstrom et al.
patent: 4651807 (1987-03-01), Newby
patent: 4654203 (1987-03-01), Maurer et al.
patent: 5086715 (1992-02-01), Burgin et al.

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