硫酸法烷基化装置存在的腐蚀问题与解决措施

Corrosion Problems and Solutions of Sulfuric Acid Alkylation Device

大连某石化公司硫酸法烷基化装置自2013年重新投产运行以来,多个系统及部位发生过硫酸腐蚀泄漏,严重影响装置的安全平稳生产。根据各部位腐蚀情况,研究各腐蚀形成的机理,分析出现腐蚀的原因,制定有针对性的解决方案及措施,通过材质升级、保护优化、设备设施升级改造等手段,减少了装置腐蚀情况的发生。

Since the sulfuric acid alkylation plant of a petrochemical company in Dalian was put back into operation in 2013,sulfuric acid corrosion leakage occurred in many systems and parts,which seriously affected the safe and stable production of the device.According to the corrosion situation of each part,the mechanism of corrosion formation is studied,the causes of corrosion are analyzed,and targeted solutions and measures are formulated to reduce the occurrence of corrosion of the device through material upgrading,protection optimization,equipment and facility upgrading and transformation.