Influence of by-pass of heat exchanger of conversion section in sulphur-burning sulphuric acid plant
YIN Xin;Wylton Dazhou Chemical Co.,Ltd.;
The 400 kt/a sulphur-burning sulphuric acid plant of Wylton Dazhou Chemical Co.,Ltd. thermal heat exchanger bypass modification situation is introduced.The reasons for the low inlet temperature of the three section of the converter,the reform measures and the operation effect are introduced in detail.The technical personnel determine the by-pass gas velocity according to the example and the literature,and calculate the cold/hot by-pass diameter.By increasing the heat side by-pass of the heat exchanger,the three section of the converter meets the production needs,and the total conversion rate of three segments and SO_2 is improved.