1-羟乙基-3-甲基咪唑氯盐水溶液蒸汽压和凝固特性研究

发布时间：2018-04-11 02:30

本文选题：离子液体 + 水溶液　；参考：《低温物理学报》2017年05期

【摘要】：1-羟乙基-3-甲基咪唑氯盐([HOEtMIM][Cl])是一种亲水性极强的离子液体,与水可以组成吸收式制冷工质对,具有良好的工业应用前景.在制冷工程应用中,离子液体水溶液的低温特性研究非常重要,包括低温段的水溶液蒸汽压数据和凝固特性,而[HOEtMIM][Cl]的相关研究缺乏.本文对水的质量分数分别为17.10%、24.29%、38.03%、49.89%、69.94%,温度范围(278.15K~408.15K)的[HOEtMIM][Cl]水溶液的汽液相平衡进行了测定;并对水的质量分数范围为1.3%~90.0%,温度范围为150K~360K的离子液体水溶液的凝固特性进行了测定,揭示其在低温应用时可能出现的固化问题.获得的蒸汽压及凝固特性数据对该离子液体水溶液应用于制冷系统设计具有重要意义.
[Abstract]:1-hydroxyethyl-3-methylimidazolium chloride ([HOEtMIM] [Cl]) is a hydrophilic ionic liquid, which can be used as an absorption refrigerant pair with water, and has a good prospect of industrial application.In the application of refrigeration engineering, it is very important to study the low temperature characteristics of ionic liquid aqueous solution, including the vapor pressure data and solidification characteristics of aqueous solution in low temperature stage, but the relative study of [HOEtMIM] [Cl] is lacking.In this paper, the vapor liquid equilibrium of [HOEtMIM] [Cl] aqueous solution with water mass fraction of 17.10% and 24.29% and 38.03K of 49.89 and the temperature range of 278.15K / 408.15K) has been determined respectively, and the solidification characteristics of aqueous solution of ionic liquid with the mass fraction of water in the range of 1.3um 90.0and the temperature range of 150K~360K ionic liquid aqueous solution have been determined.It reveals the curing problem that may occur when it is used at low temperature.The obtained data of vapor pressure and solidification characteristics are of great significance for the application of the ionic liquid aqueous solution in the design of refrigeration system.
【作者单位】：中山大学工学院;
【基金】：国家自然科学基金项目(批准号:51076169) 广东省自然科学基金重点项目(批准号:9251027501000001)资助的课题~~
【分类号】：O645.1;TB64

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