硫磺制酸装置换热器副线对转化工序的影响

摘要

The 400 kt/a sulphur-burning sulphuric acid plant of Wylton Dazhou Chemical Co.,Ltd. thermal heat exchanger by-pass modification situation is introduced.The reasons for the low inlet temperature of the three section of the converter,the reform meas-ures and the operation effect are introduced in detail.The technical personnel determine the by-pass gas velocity according to the exam-ple 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 SO2is improved.%介绍了威顿达州化工有限责任公司 400 kt/a 硫磺制酸装置热热换热器副线改造情况,详细介绍了转化器三段进口温度偏低的原因、改造措施和运行效果.技术人员根据实例和文献确定副线气速,核算出冷/热副线管径.通过新增换热器热侧副线,使转化器三段满足生产需要,提高了三段转化率和SO2总转化率.