CO_2-[emim][Tf_2N]的汽液相平衡实验研究  

Experimental study on vapor liquid equilibria of CO_2-[emim][Tf_2N]

作　　者：何丽娟[1] 王荻 吴心伟 马文清 HE Li-juan;WANG Di;WU Xin-wei;MA Wen-qing(Institute of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010

出　　处：《应用化工》2019年第3期740-742,共3页Applied Chemical Industry

基　　金：国家自然科学基金项目(51106068;51566014);内蒙古自治区自然科学基金项目(2015MS0547)

摘　　要：针对氨系、水系等传统吸收式制冷工质对存在腐蚀性强、制冷量小的缺点,自行设计搭建用于测量CO_2-[emim][Tf_2N]汽液相平衡的实验台,在温度范围263. 15～358. 15 K、压力范围0. 17～2. 45 MPa条件下,测定了CO_2在离子液体[emim][Tf_2N]中的相平衡数据。结果表明,CO_2在离子液体[emim][Tf_2N]中的溶解度可达到0. 535,为CO_2-[emim][Tf_2N]在吸收式制冷系统中的应用奠定了基础数据。In view of the shortcomings of the traditional absorption refrigerants such as ammonia,water,etc,it has the disadvantages of strong corrosion and low refrigerating capacity.An experimental platform has been designed and maded for measuring vapor-liquid equilibria of CO2-[emim][Tf2N].The phase equilibrium data of CO2 in ionic liquid[emim][Tf2N]are measured at temperatures from 263.15 K to 358.15 K and pressures from 0.17 MPa to 2.45 MPa.The results show that the solubility of CO2 in [emim][Tf2N] can reach up to 0.535,which is the basis for the application of CO2-[emim][Tf 2N] in absorption refrigeration system.

关 键 词：汽液相平衡 替代吸收式制冷工质对 CO2-[emim][Tf2N] 溶解度 

分 类 号：TQ028[化学工程]