Process for purifying waste gases containing polyhalogenated com

Details Process for purifying waste gases containing polyhalogenated com Process for purifying waste gases containing polyhalogenated com

1992-11-18

1993-11-09

Konopka, Paul E.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Organic component

423240S, 431 5, 502 34, 502 56, 588251, 95142, B01D 5334, A62D 300, B01J 800, B01J 2034

Patent

active

052600475

ABSTRACT:
A process for purifying waste gases containing polyhalogenated compounds, in particular dioxins and furans, which waste gases accumulate, for example, in a garbage incinerator 1, are directed through a filter 3, which contains an adsorption agent, e.g., activated coke. The adsorption agent, loaded with harmful substances, in particular dioxins and furans, is transported under an inert gas to another processing operation or to storage. During this transportation step, the dioxins and furans are decomposed in heating zones 11 and cooling zones 12, with the preferred decomposition temperature being about 250.degree.-450.degree. C.

REFERENCES:
patent: 3769776 (1973-11-01), Berg
patent: 4283212 (1981-08-01), Graham
patent: 4631183 (1986-12-01), Lalancette et al.
patent: 4844875 (1989-07-01), Ettehadieh
patent: 4889698 (1989-12-01), Moller et al.
patent: 5069689 (1991-12-01), Goldhaar

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