摘要
PTA装置TT - 1131吸附塔不锈钢废气入口管多次腐蚀穿孔 ,根据外观检查、金相分析、电子探针X射线显微分析 ,确认管线腐蚀是由于增设旋风分离器后 ,管内介质状态由细雾状变为露状 ,加上分离效果差和管线焊接质量等原因产生的HBr露点腐蚀所致 ,去掉旋风分离器后 。
The waste gas stainless steel pipeline of TT-1131 absorber in PTA unit failed many times. The visual inspection, metallographic analysis and X ray examination confirmed that the failure was caused by the dew point corrosion resulting from dew status of the media in the pipeline after the a cyclone separator was installed in addition to the poor separation efficiency and welding quality of the pipeline. The operation came to normal after the cyclone separator was removed.
出处
《石油化工腐蚀与防护》
CAS
2002年第1期31-34,共4页
Corrosion & Protection In Petrochemical Industry
