| 摘要 |
<p>The procedure consists of delivering the fumes (1) to be cleaned, preferably at a temperature of 140 - 180 degrees C, into a gas/solids separator (101) which is also fed with a neutralising reagent, especially lime, magnesium, sodium carbonate or sodium bicarbonate. A proportion (4), preferably 5 - 25 per cent, of the total purified fumes is taken off and fed into an activation reactor (104), preferably at 160 - 230 degrees C and with a water content of 30 - 50 per cent, together with a fraction (10) of the solid residues (9) from the separator, and at least part of the activated solid residues and effluent gases (12) is recycled back to the separator.</p> |
