硫酸尾气活性焦干法脱硫技术的应用和改进

Application of activated coke desulphurization technology in tail gas treatment of sulphuric acid plant and improvement

介绍了江西铜业集团公司贵溪冶炼厂制酸一系列硫酸尾气活性焦脱硫技术的原理、工艺流程及特点。对生产中出现的问题进行了详细分析,并采取相应的改进措施。改进后,脱硫装置故障发生率低,脱硫后外排尾气ρ(SO2)≤300 mg/m3,同时可减少SO2排放量约613.413 t/a,环境效益显著。

The technological principle, process flow and characteristics of activated coke desulphurization technology used for tail gas treatment of sulphuric acid plant in Guixi Smelter Jiangxi Copper Corporation are introduced. The problems occurring in production were analyzed in detail and the corresponding improvement measures were taken. Failure rate of the desulphurization plant was lowered through improvement. SO2 concentration in tail gas was lower than 300 mg/m3, which corresponded to a decrease in SO2 emissions of about 613. 413 t/a. The environmental benefits were significant.