摘要 |
<p>The method involves allowing fumes (1) to be vacuum-cleaned, and denitrifying the fumes by mixing the fumes with a denitrification reagent (8) such as ammonia gas. The fumes are mixed with denitrification catalysts (6, 7) and introduced into a dust extractor (201). A fraction (5) of solids (3) is collected by the dust extractor. A dry steam flow (51) having temperature of about 220 degrees Celsius is introduced into a reactivation reactor (301). The solids are flown from the reactor and are recycled in upstream of the dust extractor.</p> |