加氢改质装置螺纹锁紧环换热器腐蚀原因分析与对策  

Analysis and Countermeasures of Corrosion and Internal Leakage of Thread Locking Ring Heat Exchanger in Hydrogenation Upgrading Unit

作　　者：杨鹏 兰勇 刘昶 孙蕾 范宝强 梁尚坤 丁世丞 郭皓 YANG Peng;LAN Yong;LIU Chang;SUN Lei;FAN Baoqiang;LIANG Shangkun;DING Shicheng;GUO Hao(PetroChina Qinghai Oilfield Golmud Refinery,Golmud Qinghai 816000,China;Sinopec(Dalian)Research Institute of Petroleum and Petrochemicals Co.,Ltd.,Dalian Liaoning 116045,China)

机构地区：[1]中国石油青海油田格尔木炼油厂,青海格尔木816000 [2]中石化(大连)石油化工研究院有限公司,辽宁大连116045

出　　处：《当代化工》2024年第7期1741-1745,共5页Contemporary Chemical Industry

摘　　要：针对加氢改质装置铵盐结晶和高压螺纹锁紧环换热器腐蚀内漏问题,考察和研究了高压螺纹锁紧环换热器在含硫、含氯环境的工作状况,通过加强原料油脱水、提高高压螺纹锁紧环换热器管壳程出口温度、优化注水点位置和总注水量等措施,有效避免反应流出物系统的铵盐结晶和降低腐蚀速率,实现装置长周期运行。In view of the problems of ammonium salt crystallization and internal leakage in the heat exchanger of high pressure thread locking ring in the hydrogenation upgrading unit,the working conditions of the high pressure thread locking ring heat exchanger in the environment containing sulfur and chlorine were investigated and studied.By strengthening the dehydration of raw oil,increasing the outlet temperature of the shell-and-tube side of the high-pressure thread-locked ring heat exchanger,optimizing the position of water injection point and total water injection quantity,etc.,the ammonium salt crystallization of the reaction effluent system was effectively avoided,and corrosion rate was decreased,the long-term operation of the plant was realized.

关 键 词：加氢改质装置 螺纹锁紧环换热器 氯化铵 腐蚀 

分 类 号：TQ052[化学工程]