Sulphur dioxide concentration in sulphur-burning sulphuric acid production
DING Hua;Xinghua Hongwei Science and Technology Co. ,Ltd.;
Due to pre-conversion in the sulphur furnace,the generation of SO 3 can interfere the accuracy in the determination of SO2 concentration at the inlet of converter by iodine solution method. On the basis of correlations among O 2 concentration of tail gas from sulphur-burning sulphuric acid plants,temperature rise in sulphur furnace,total temperature rise in converter and initial SO2 concentration, calculation mode was concluded according to listed corresponding data and diagram. The specific application of the four kinds of methods for determining SO2 concentration at the inlet of converter in sulphur-burning sulphuric acid plants was illustrated and discussed.