【摘要】 介绍了硫磺制酸装置由120 kt/a扩产到150 kt/a的改造情况。采用快速熔硫替代原静态熔硫,大大减少了熔硫蒸汽消耗。催化剂装填总量由105.37 m3增加到119.2 m3,平均总转化率提高到99.83%。更换二吸酸循环泵,提高循环酸量。为降低尾气酸雾排放,二吸塔设置纤维除雾器。改造后,系统运行正常,年产量由120 kt 提高到150 kt,饱和蒸汽产量增加42 kt。更多还原

【Abstract】 Revamp of a sulphur-burning sulphuric acid plant from 120 kt/a to 150 kt/a is described. Static melting of sulphur was replaced with fast melting, resulting in decreased consumption of steam. Catalyst charging was increased from 105. 37 m3 to 119. 2 m3. The average conversion accordingly attained 99. 83% . Circulation pump was replaced to increase circulating acid capacity of final absorption. A fiber mist eliminator was installed in the final absorption tower to control acid mist in tail gas. After revamp, the sulphuric acid plant run well, sulphuric acid production of increased from 120 kt/a to 150 kt/a and steam production was up 42 kt/a.更多还原