Diffusion coefficients and Henry's constants of six hydrofluorocarbons in ionic liquid [HMIM] [PF<sub>6</sub>]

LIU Xiangyang; PAN Pei; PENG Sanguo; HE Maogang; HE Yongdong

doi:10.11949/j.issn.0438-1157.20170589

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Diffusion coefficients and Henry's constants of six hydrofluorocarbons in ionic liquid [HMIM] [PF₆]

更新时间：2025-12-10

- Diffusion coefficients and Henry's constants of six hydrofluorocarbons in ionic liquid [HMIM] [PF₆]
- CIESC Journal Issue 12, Pages: 4486-4493(2017)
- 作者机构：
  
  1. 西安交通大学热流科学与工程教育部重点实验室,陕西,西安,710049
  2. 新疆大学物理科学与技术学院,新疆,乌鲁木齐,830000
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170589
  CLC： K123
- Online First：05 December 2017，
  
  Published：05 December 2017
- 稿件说明：
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LIU Xiangyang, PAN Pei, PENG Sanguo, et al. Diffusion coefficients and Henry's constants of six hydrofluorocarbons in ionic liquid [HMIM] [PF₆][J]. CIESC Journal, 2017, (12): 4486-4493. DOI: 10.11949/j.issn.0438-1157.20170589.
DOI：

LIU Xiangyang, PAN Pei, PENG Sanguo, et al. Diffusion coefficients and Henry's constants of six hydrofluorocarbons in ionic liquid [HMIM] [PF₆][J]. CIESC Journal, 2017, (12): 4486-4493. DOI: 10.11949/j.issn.0438-1157.20170589. DOI：

摘要

氢氟烃+离子液体是一种非常有潜力的吸收式制冷循环工质对。利用压力衰减法测量了303.15～343.15 K范围内6种氢氟烃（R32、R125、R161、R143a、R1234yf、R152a）在离子液体1-已基-3-甲基咪唑（钅翁）六氟磷酸盐（[HMIM][PF6]）中的扩散系数和亨利常数。结果表明：6种氢氟烃在[HMIM][PF6]中的扩散系数和亨利常数均随着温度的升高而增大。在6种氢氟烃中，因R32在[HMIM][PF6]中具有较大的溶解度和扩散系数，所以R32+[HMIM][PF6]较适合作为吸收式制冷循环的工质对。最后，采用Arrhenius方程对6种氢氟烃在[HMIM][PF6]中的扩散系数和亨利常数进行了关联，计算结果与实验数据的平均绝对相对偏差分别小于2.5%和6.0%。

Abstract

Hydrofluorocarbon + ionic liquid is a potential working pair for the absorption refrigeration cycle. A pressure decay technique was used to measure the diffusion coefficients and Henry's constants of six hydrofluorocarbons (R32

R125

R161

R143a

R1234yf and R152a) in 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM] [PF6]) in the temperature range from 303.15 K to 343.15 K. The experimental results show that the diffusion coefficients and Henry's constants of six hydrofluorocarbons in [HMIM] [PF6] increase with the increasing temperature. Compared with other five hydrofluorocarbons

R32 not only exhibits higher solubility but also higher diffusivity. Therefore

R32 + [HMIM] [PF6] is very suitable for the absorption refrigeration cycle. The Arrhenius equation was applied to correlate the diffusion coefficients and Henry's constants of six hydrofluorocarbons in [HMIM] [PF6]. The average absolute relative deviations between the calculated results and the experimental data were less than 2.5% and 6.0%

respectively.

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Diffusion coefficients and Henry's constants of six hydrofluorocarbons in ionic liquid [HMIM] [PF6]

DOI：10.11949/j.issn.0438-1157.20170589

摘要

Abstract

关键词

Keywords

references

Diffusion coefficients and Henry's constants of six hydrofluorocarbons in ionic liquid [HMIM] [PF₆]