重整装置脱丁烷塔铵盐堵塞与腐蚀原因分析及对策

摘要

The ammonium salt plug and corrosion of trays and air cooler of the debutanizer were analyzed,which occur during the long-term operation of Zhenhai Refining & Chemical Company's continuous catalytic reforming unit.According to the water-soluble property of ammonium chloride,the water injection prior to air cooler and in feed of the debutanizer was used to avoid ammonium salt deposition with good results and a long-term operation of the device.%针对中国石化镇海炼油化工股份有限公司连续重整装置在长周期运行过程中出现的重整生成油脱丁烷塔塔盘和塔顶空气冷却(简称空冷)器铵盐堵塞与腐蚀的问题进行了分析.利用氯化铵盐易溶于水的特点,实际生产中采取了在脱丁烷塔空冷器前和进料中注水清洗的方法避免铵盐的沉积,取得了较好的效果,确保了装置长周期运行.