乙醇胺缩合胺化反应合成乙二胺研究进展  

Progress in selective synthesis of ethylenediamine via condensation amination of monoethanolamine

作　　者：赵锋伟 惠丰[2] 袁俊[2] 张前[2] 梅苏宁[2] 余秦伟[2] 杨建明[2] 刘昭铁[1] 吕剑[1,2] ZHAO Fengwei;HUI Feng;YUAN Jun;ZHANG Qian;MEI Sunning;YU Qinwei;YANG Jianming;LIU Zhaotie;LYU Jian(School of Chemistry and Chemical Engineering,Shaanxi Normal University,Xi’an 710119,Shaanxi,China;State Key Laboratory of Fluorine&Nitrogen Chemical,Xi’an Modern Chemistry Research Institute,Xi’an 710065,Shaanxi,China)

机构地区：[1]陕西师范大学化学工程学院,陕西西安710119 [2]西安近代化学研究所氟&氮化学国家重点实验室,陕西西安710065

出　　处：《化工进展》2020年第S02期212-220,共9页Chemical Industry and Engineering Progress

摘　　要：乙醇胺(MEA)缩合胺化反应是一种绿色、高效的乙二胺(EDA)催化合成技术。本文综述了MEA缩合胺化反应合成EDA的催化反应过程、缩合胺化催化剂及胺化产物分离纯化技术的最新研究进展和动向,重点探讨了缩合胺化反应机理、反应热力学及动力学、催化剂酸性及孔道结构对反应性能的影响、催化剂失活、胺化产物分离纯化技术等,总结了缩合胺化反应合成EDA工艺过程中存在的技术问题。提出通过制备多级孔道沸石分子筛催化剂实现择形催化与高效扩散之间的协调统一;通过强化分子筛催化剂改性方法研究,实现催化剂表面酸性的精确调控。在择形催化和酸催化的协同作用下,有望从根本上解决缩合胺化反应中存在的技术问题,加快缩合胺化反应工艺技术的工业化应用普及。Condensation amination of monoethanolamine(MEA)is a green and efficient method in selective synthesis of ethylenediamine(EDA).Progresses and trends in reaction process,catalyst,separation and purification are reviewed in this work.Reaction mechanism,thermodynamics and kinetics,effect of catalysts including acidity,pore properties and deactivation,separation and purification are discussed in detail.Furthermore,the core issues in the industrialization of this reaction are analyzed and it's pointed out that fabrication of hierarchical zeolite with tunable surface acidity is an effective way to overcome the diffusion limitation in selective synthesis of EDA.Via the synergism between shape selective catalysis and acid catalysis,it is expected to overcome the problems and promote the application in selective synthesis of EDA via condensation amination of MEA in industry.

关 键 词：乙二胺 选择性 化学反应 制备 催化剂 分离 

分 类 号：TQ217[化学工程—有机化工]