真空碳酸钾脱硫运行中存在的问题及对策  

Problems and Countermeasures in Vacuum Potassium Carbonate Desulphurization

作　　者：王宏升 王密军 梁永飞 张宁国 WANG Hongsheng;WANG Mijun;LIANG Yongfei;ZHANG Ningguo(ShanDong Steel Rizhao Co.,Ltd.,Rizhao 276800,China)

机构地区：[1]山东钢铁日照有限公司,山东日照276800

出　　处：《化工管理》2025年第8期137-139,共3页Chemical Management

摘　　要：真空碳酸钾脱硫在长期运行过程中容易出现塔后含硫化氢升高、脱硫效率下降、酸气管道阻力大等问题。文章通过取酸气管道附着物进行化验检测分析,就脱硫系统副盐产生机理进行深入探讨,对脱硫再生塔顶压力变化产生原因进行全面梳理,针对性采取工艺优化和设备改造措施,制定解决脱硫再生塔真空度下降、脱硫液再生效果差、脱硫副盐过快上涨等专项对策,实现塔后硫化氢达标控制,满足了下游工序生产需求。During long-term operation,vacuum potassium carbonate desulfurization is prone to problems such as an increase in hydrogen sulfide content behind the tower,a decrease in desulfurization efficiency,and high resistance in the acid gas pipeline.Through laboratory testing and analysis of the attached substances in the acid gas pipeline,the mechanism of secondary salt production in the desulfurization system is deeply explored,and the reasons for the pressure changes at the top of the desulfurization regeneration tower are comprehensively sorted out.Targeted process optimization and equipment renovation measures were taken,and special measures were formulated to solve the problems of decreased vacuum degree in the desulfurization regeneration tower,poor regeneration effect of desulfurization solution,and rapid increase of desulfurization secondary salt.The goal was to achieve standard control of hydrogen sulfide behind the tower and meet the production needs of downstream processes.

关 键 词：真空碳酸钾法脱硫 真空度 脱硫效率 脱硫液 副盐 

分 类 号：TQ522[化学工程—煤化学工程]