摘要
热高分气/混合氢换热器作为加氢装置关键设备之一,长期处于高温、高压及各种腐蚀环境下.该换热器多次因铵盐堵塞换热管或垢下腐蚀致使换热管穿孔,造成装置非计划停车.文章对某高含H2S装置热高分气/混合氢换热器(E1105)进行详细的铵盐垢下腐蚀及氯化物应力腐蚀分析,并对该腐蚀环境下换热器的选材进行研究,对材料提出具体的技术要求及腐蚀试验要求.
As one of the key equipment of hydrogenation unit,the heat exchanger for heat high-pressure separation gas/mixed hydrogen has been in high temperature,high pressure and various corrosive environments for a long time.This heat exchanger has been repeatedly blocked by ammonium salt or under-deposit corrosion,resulting in unplanned shutdown of the unit.In this paper,the ammonium satt under-deposit corrosion and chloride stress corrosion of the heat exchanger(E1105.)for heat high-pressure separation gas/mixed hydrogen unit containing high H2S content were analyzed in detail.The material selection of the heat exchanger in this corrosive environment was studied,and the specific material technical requirements and corrosion test requirements were put forward.
作者
陈盛秒
Chen Shengmiao(Wuhan Jinzhong Petrochemical Engineering Co.,Ltd.,Wuhan,Hubei,430223)
出处
《石油化工设备技术》
CAS
2020年第4期48-53,I0004,I0005,共8页
Petrochemical Equipment Technology
关键词
铵盐结晶
垢下腐蚀
选材研究
加氢装置
ammonium satt crystallization
under-deposit corrosion
study on material selection
hydrogenation unit
