CAJ | 학술논문

在精对苯二甲酸(PTA)生产中，选取干燥机BM302壳体常用材料奥氏体不锈钢AISI 316L为研究对象，在醋酸环境中，对AISI 316L 受Br-及Cl-作用的电化学极化试验和电化学阻抗试验进行腐蚀性试验研究。试验结果表明，Br-或Cl-浓度的增加都会导致AISI 316L不锈钢腐蚀速率增加、击穿电位降低、腐蚀反应电阻减小，导致其耐腐蚀性能下降，腐蚀加剧。为PTA设备腐蚀的现场监测和设备维护提供参考依据。
재정대분이갑산(PTA)생산중，선취간조궤BM302각체상용재료오씨체불수강AISI 316L위연구대상，재작산배경중，대AISI 316L 수Br-급Cl-작용적전화학겁화시험화전화학조항시험진행부식성시험연구。시험결과표명，Br-혹Cl-농도적증가도회도치AISI 316L불수강부식속솔증가、격천전위강저、부식반응전조감소，도치기내부식성능하강，부식가극。위PTA설비부식적현장감측화설비유호제공삼고의거。
In purified terephthalic acid (PTA) production, selected the drying machine BM302 shell commonly use material austenitic stainless steel AISI 316L as the research object. In the acetic acid environment, for corrosive test research of AISI 316L, through Br-and Cl-the role of electrochemical polarization test and electrochemical impedance test. The test results show that Br-or Cl-will lead to the increasing of the concentration of seawater AISI 316L stainless steel corrosion rate increase, breakdown voltage is reduced, and the corrosion reaction resistance decreases, and lead to its corrosion resistance drop, corrosion intensifies. That will provide reference for PTA equipment corrosion field monitoring and equipment maintenance.