加氢含硫污水管道冲蚀临界特性的电化学测试  

Determination of critical erosion-corrosion properties of hydrocracker sulfur-containing waste water pipe by electrochemical method

作　　者：偶国富[1] 曹海彬[1] 朱祖超[1] 王艳萍[1] 包金哲[1] 

机构地区：[1]浙江理工大学机械与自动控制学院,浙江杭州310018

出　　处：《化工学报》2009年第3期691-695,共5页CIESC Journal

基　　金：国家自然科学基金项目(20576125);浙江省重大科技计划项目(2006C13063)~~

摘　　要：利用旋转式单相流冲蚀实验装置模拟加氢空冷器管道系统的工况条件,采用电化学测试方法,研究20#碳钢在含硫污水中的冲蚀临界特性。利用电子扫描电镜(SEM)表征试件表面腐蚀产物保护膜的微观形貌。结果表明:实验条件下,20#碳钢腐蚀产物保护膜的厚度约为30～40μm,使腐蚀产物膜发生冲蚀破坏的介质临界流速约为8.03 m·s-1。The operation condition of the air cooler pipeline system of hydrocracker was simulated by a rotary single-phase erosion experimental device. The critical erosion-corrosion properties of 20 ^# steel pipe in sulfur-containing waste water was determined by using the electrochemical method. The micro- morphology of the protective corrosion product film was analyzed by scanning electron microscopy （SEM）. Under experimental conditions, the thickness of the protective corrosion product film was 30-40μm, and the critical flow velocity that caused erosion-corrosion of the protective corrosion product film of 20 ^# steel was about 8.03 m · s^-1.

关 键 词：加氢裂化 含硫污水 冲蚀 临界特性 电化学测试方法 

分 类 号：TQ028.8[化学工程]