Solubilities of R32, R245fa, R227ea and R236fa in a phosphonium-based ionic liquid

被引：31

作者：

Liu, Xiangyang ^{[1
]}

Lv, Nan ^{[1
]}

Su, Chao ^{[1
]}

He, Maogang ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Key Lab Thermal Fluid Sci & Engn MOE, Xian 710049, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2016年 / 218卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Refrigerant; Phase behavior; HFC; Ionic liquid; Interaction; ABSORPTION-REFRIGERATION SYSTEM; VAPOR-LIQUID; PHASE-BEHAVIOR; WORKING PAIR; EQUILIBRIA; HYDROFLUOROCARBONS; DIFFUSIVITY; 1,1,1,2-TETRAFLUOROETHANE; DIFLUOROMETHANE; MIXTURES;

D O I：

10.1016/j.molliq.2016.02.041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New solubility data for difluoromethane (R32), 1,1,1,3,3-pentafluoropropane (R245fa), 1,1,2,2,3,3,3-heptafluoropropane (R227ea) and 1,1,1,3,3,3-hexafluoropropane (R236fa) in trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl)phosphinate ([P14666][TMPP]) at temperatures from 292 K to 344 K and at pressures from 0.01 MPa to 1.07 MPa is presented in this work. Low temperature and high pressure can improve the solubilities of hydrofluorocarbons in [P14666][TMPP]. Hydrofluorocarbons are more soluble in [P14666][TMPP] than their corresponding alkanes. Dispersive force, dipole-dipole interaction and hydrogen bond interaction were considered to exist between HFC and [P14666][TMPP]. A modified Krichevsky-Kasarnovsky equation was used to correlate the solubilities of R32, R227ea, R236fa and R245fa in [P14666][TMPP] with the mean absolute relative deviations and the maximum absolute relative deviations less than 2.0% and 4.3%, respectively. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：525 / 530

页数：6

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