METHOD OF PREVENTING OXIDATION OF SULFITE OR ACIDID AQUEOUS SOLUTION O F SULFITE BY OXYGEN

摘要

PURPOSE:To prevent abnormal oxidation of sulfite by O2 in removing NO2 in fiue gas by contacting the gas in which NO has been oxidized in advance by an oxidizing agent to make the percentage of NO2 in NOx more than 60% with sulfite and/or an acidic aqueous solution of sulfite.