甲醇转化炉预热段出口管线腐蚀原因  

Corrosion Reason of Outlet Pipe for Preheating Stage in a Methanol Reformer

作　　者：柏明清[1] 周杨[1] 魏超[1] 王艳芳[1] 黄开宣[2] 

机构地区：[1]独山子石化公司研究院,独山子833600 [2]独山子石化公司乙烯厂,独山子833600

出　　处：《腐蚀与防护》2013年第12期1147-1150,1157,共5页Corrosion & Protection

摘　　要：通过宏观检查、壁厚测试、化学成分分析、金相检验及腐蚀产物分析等方法对甲醇转化炉预热段出口管线进行腐蚀原因分析。结果表明,造成管线腐蚀减薄的主要原因是高温碳化腐蚀,提出了选材建议及工艺改进措施。The corrosion reason of outlet pipe for preheating stage in a methanol reformer was analyzed by means of macrography, thickness testing, chemical composition analysis, metallographic examination and corrosion product analysis. The results show that metal dusting caused by carbonization was the main reason for the pipeline corrosion thinning. Some suggestions about the materials selecton and technology improvement measures were proposed.

关 键 词：甲醇 转化炉 碳化腐蚀(金属粉化) 减薄 

分 类 号：TG172[金属学及工艺—金属表面处理]