Process for purification of exhaust gases, in particular...

B - Operations – Transporting – 01 – D

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B01D 53/34 (2006.01) B01D 53/04 (2006.01) B01D 53/75 (2006.01) B01D 53/86 (2006.01)

Patent

CA 2059281

Abstract Process for purification of exhaust gas (1) from waste incinerators, especially refuse incinerators (2), wherein the exhaust gas (1) is dedusted, conditioned and passed through an adsorber (6) charged with activated coke (7) for separating off pollutants. The unpurified exhaust gas (1) is passed through the adsorber (6). The adsorption is controlled in such a way that the gas (8) leaving the adsorber (6) is almost free of SO2. HCl and HF for producing re-usable products, especially hydro- chloric acid and/or NaCl, is taken off from the unpuri- fied gas (8) leaving the adsorber (6). By means of multiple adsorption (6, 14, 25, 36) and regeneration (20, 29), on the one hand the exhaust gas (1) is purified and, on the other hand, the pollutants are separated from the exhaust gas (1) and further processed to give saleable products. (Figure 1).

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