FIELD: gas treatment. SUBSTANCE: smoke fumes containing dioxins of polychlorobenzenes are rapidly cooled in two steps: first to 1000-800 C with heat exchanger surface contact time 0.05 to 0.1 s and then to a temperature no higher than 25 C with contact time less than 0.05 s. Dioxin-free gas is released into atmosphere. EFFECT: enhanced gas treatment efficiency.
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