Vapor-liquid equilibrium and diffusion coefficients of R32+[HMIM][FEP], R152a+[HMIM][FEP] and R161+[HMIM][FEP]

被引：35
作者：
Liu, Xiangyang [1 ]
Pan, Pei [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, Shaanxi, Peoples R China
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 253卷
关键词：
Solubility; Diffusion coefficient; Henry's law constant; Hydrofluorocarbon; Ionic liquid; TEMPERATURE IONIC LIQUIDS; PHASE-BEHAVIOR; CARBON-DIOXIDE; GAS SOLUBILITY; ABSORPTION; CO2; HYDROFLUOROCARBONS; DIFLUOROMETHANE; MIXTURES; NITROGEN;
D O I：
10.1016/j.molliq.2018.01.032
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：
In this paper, new data for the solubilities and diffusion coefficients of difluoromethane (R32), fluoroethane (R161) and 1,1-difluoroethane (R152a) in ionic liquid 1-hexyl-3-methylimidazolium tris (pentafluoroethyl)trifluorophosphate ([HMIM][FEP]) at temperatures ranging from 293 K to 343 K and at pressures up to 0.5 MPa were presented. The solubilities of R32, R161 and R152a in [HMIM][FEP] can be improved by decreasing the temperature and increasing the pressure. With the increasing temperature, the diffusion coefficients and Henry's law constants of the three hydrofluorocarbons increase. The solubilities and diffusion coefficients of R32, R152a, and R161 in [HMIM][FEP) were correlated well with the NRTL equation and the Wilke-Chang equation, respectively. (C) 2018 Elsevier B.V. All rights reserved.
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页码：28 / 35
页数：8
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