PROCESS FOR REMOVING CONTAMINANTS FROM GAS STREAMS

摘要

The present invention provides process for inhibiting the levels of nitrogen oxides in process gas streams from sulfuric acid regeneration and production plants. The process gas stream from a waste heat boiler or a candle mist eliminator is contacted with ozone which reacts with nitrogen oxides present in the gas to form N 2 O 5 which is readily scrubbed out of the gas stream.