醇胺法碳捕集装置腐蚀成因与控制策略  

Corrosion causes and control strategies in alcohol amine carbon capture equipment

作　　者：杜延年 杨琰嘉 包振宇 段永锋 汪东 Du Yannian;Yang Yanjia;Bao Zhenyu;Duan Yongfeng;Wang Dong(Luoyang R&D Center of Technology of SINOPEC Engineering(Group)Co.,Ltd.,Luoyang,Henan 471003;SINOPEC Nanjing Research Institute of Chemical Industry Co.,Ltd.,Nanjing,Jiangsu 210048)

机构地区：[1]中石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南省洛阳市471003 [2]中石化南京化工研究院有限公司,江苏省南京市210048

出　　处：《炼油技术与工程》2025年第2期48-51,共4页Petroleum Refinery Engineering

基　　金：中国石化科技开发项目(323116)。

摘　　要：醇胺法碳捕集技术具有较高的选择性和捕集效率,在碳捕集、利用与封存产业中应用广泛。然而,胺液变质会引起碳捕集效率降低、设备腐蚀风险加剧和胺液发泡等一系列问题,影响装置长周期运行。结合醇胺法碳捕集过程特点,以甲基二乙醇胺(MDEA)为对象,系统分析了吸收剂的降解方式、降解产物种类及装置腐蚀成因,同时,对比了不同胺液净化技术的优缺点,提出了系统的醇胺法碳捕集装置腐蚀控制策略,并对未来新型胺液净化技术和非水体系吸收剂的开发进行了展望。The alcohol amine carbon capture technology has been widely used in the CCUS(carbon capture utilization and storage)industry due to its high selectivity and capture efficiency.However,the deterioration of the amine liquid can cause a series of problems such as decreased carbon capture efficiency,increased equipment corrosion risk,and amine liquid foaming,which affect the long-term operation of the equipment.Based on the characteristics of the alcohol amine carbon capture process,the degradation mode,degradation product types,and corrosion causes of the absorbent were systematically analyzed using MDEA(methyldiethanolamine)as the object.At the same time,the advantages and disadvantages of different amine purification technologies were compared,and a systematic corrosion control strategy for the alcohol amine carbon capture device was proposed.The future development of new amine purification technologies and non-aqueous absorbent systems was also discussed.

关 键 词：醇胺法 碳捕集装置 腐蚀成因 控制策略 热稳定盐 离子交换 电渗析 蒸馏回收 

分 类 号：TQ050.9[化学工程]