Method for dry cleaning exhaust gases from metallurgy or secondary metallurgy processes

摘要

The dry cleaning of exhaust gases from metallurgical/secondary metallurgical processes, comprises subjecting powdery sorbent having brown coal coke and/or active charcoal in contact with exhaust gas stream, which is added with the sorbent substances, which release toxic substances in the presence of alkali chloride at 100[deg] C for metal catalysts. The substances subjected with the sorbent to the exhaust gas stream have elementary sulfur and alkali chloride. The ratio of the sulfur to the sorbent is 0.15:1. An independent claim is included for a sorbent for dry cleaning of exhaust gases with surface-active substances of brown coal coke and/or activated charcoal.