多胺法(改良MDEA)脱除CO_2工艺及其应用  

Energy-Saving and Efficient Process for CO_2 Removal——Multi-Amine Method(Improved MDEA) and Its Application

作　　者：张学模 陆峰 

机构地区：[1]南化集团研究院,南京210007 [2]常州市巨顺化工有限公司,常州213169

出　　处：《煤化工》2009年第6期5-9,共5页Coal Chemical Industry

摘　　要：叙述了多胺法(改良MDEA)脱除CO_2的基本原理——MDEA与CO_2的反应机理和MDEA对CO_2具有物理吸收及化学吸收的双重性,以及本工艺的双活化剂的独特性。介绍了在合成氨及甲醇生产中,采用本工艺脱CO_2具有的净化度高、能同时脱除硫化物、吸收能力高、热能耗低、溶液损失少、可利用闪蒸提高再生气CO_2纯度等特点,以及现有多胺法装置扩大生产能力的途径。还介绍了本工艺近几年来的技术新进展、新装置的投运情况。最后分析了部分工厂生产中存在的设备腐蚀、溶剂起泡、热能耗高、净化度差等问题,并提出解决办法。Presented in this paper are the philosophy of the multi-amine(improved MDEA) process for CO_2 removal (the reaction mechanism between MDEA and CO_2),the MDEA s dual(physical and chemical) absorption properties for CO_2 and the unique property of dual -active agents of the present process.If this process is applied in ammonia or methanol plants to remove CO_2,high purity,high absorption,low energy consumption,less solution loss can be expected. Besides,it can remove sulfides simultaneously,and the regenerate...

关 键 词：多胺法 脱CO_2工艺 净化 吸收 再生 

分 类 号：TQ113.26[化学工程—无机化工]