Isobaric vapor-liquid equilibrium for system of acetonitrile-<i>n</i>-propanol system containing ionic liquids

LI Wenxiu; ZHANG Qi; ZHANG Qinqin; ZHANG Zhigang

doi:10.11949/j.issn.0438-1157.20141907

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Isobaric vapor-liquid equilibrium for system of acetonitrile-n-propanol system containing ionic liquids

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- Isobaric vapor-liquid equilibrium for system of acetonitrile-n-propanol system containing ionic liquids
- CIESC Journal Issue S1, Pages: 38-44(2015)
- 作者机构：
  
  沈阳化工大学化学工程学院, 辽宁省化工分离技术重点实验室,辽宁,沈阳,110142
- 作者简介：
- 基金信息：
  
  supported by the National Natural Science Foundation of China (21076126).
- DOI：10.11949/j.issn.0438-1157.20141907
  CLC： 642.42
- Online First：30 June 2015，
  
  Published：30 June 2015
- 稿件说明：
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LI Wenxiu, ZHANG Qi, ZHANG Qinqin, et al. Isobaric vapor-liquid equilibrium for system of acetonitrile-n-propanol system containing ionic liquids[J]. CIESC Journal, 2015, (S1): 38-44. DOI: 10.11949/j.issn.0438-1157.20141907.
DOI：

LI Wenxiu, ZHANG Qi, ZHANG Qinqin, et al. Isobaric vapor-liquid equilibrium for system of acetonitrile-n-propanol system containing ionic liquids[J]. CIESC Journal, 2015, (S1): 38-44. DOI: 10.11949/j.issn.0438-1157.20141907. DOI：

摘要

常压(101.3 kPa)下

测定了如下体系的汽液平衡数据:乙腈-正丙醇-氯化1-苄基-3-甲基咪唑([BzMIM][Cl])、乙腈-正丙醇-溴化1-苄基-3-甲基咪唑([BzMIM][Br])、乙腈-正丙醇-溴化1-己基-3-甲基咪唑([HMIM][Br])

考察了3种离子液体对乙腈-正丙醇体系相平衡行为的影响。实验结果表明

3种离子液体都能够提高乙腈对正丙醇的相对挥发度

3种离子液体提高相对挥发度的顺序为 [BzMIM][Cl] > [BzMIM][Br] > [HMIM][Br]。用NRTL模型对测得的汽液平衡数据进行了关联

关联结果与实验结果具有良好的一致性。

Abstract

Isobaric vapor liquid equilibrium (VLE) for the acetonitrile-n-propanol system containing different ionic liquids (ILs) at atmospheric pressure (101.3 kPa) was measured. The employed ionic liquids (ILs) are 1-benzyl-3-methylimidazolium chloride ([BzMIM][Cl])

1-benzyl-3-methylimidazolium bromide ([BzMIM][Br]) and 1-hexyl-3-methylimidazolium bromide ([HMIM][Br]). The results showed that all the three ILs could enhance the relative volatility of acetonitrile to n-propanol. The order of the separation ability of ILs is [BzMIM][Cl] > [BzMIM][Br] > [HMIM][Br]. The ternary vapor liquid equilibrium experimental data were fitted with the nonrandom two-liquid (NRTL) model. It was demonstrated that NRTL model was suitable for the description of the ternary system of acetonitrile + n-propanol + IL.

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Isobaric vapor-liquid equilibrium for system of acetonitrile-n-propanol system containing ionic liquids

DOI：10.11949/j.issn.0438-1157.20141907

摘要

Abstract

关键词

Keywords

references