Measurement and prediction of excess molar enthalpies of ternary working solutions 1-butyl-3-methylimidazolium dibutylphosphate + methanol/ethanol + water

ZHANG Xiaodong; CHANG Renjie; ZHAO Zongchang

doi:10.3969/j.issn.0438-1157.2013.05.003

您当前的位置：

首页 >

文章列表页 >

Measurement and prediction of excess molar enthalpies of ternary working solutions 1-butyl-3-methylimidazolium dibutylphosphate + methanol/ethanol + water

更新时间：2025-12-10

- Measurement and prediction of excess molar enthalpies of ternary working solutions 1-butyl-3-methylimidazolium dibutylphosphate + methanol/ethanol + water
- CIESC Journal Issue 5, Pages: 1520-1525(2013)
- 作者机构：
  
  大连理工大学化工与环境生命学部,辽宁,大连,116024
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.05.003
  CLC： Q013.1
- Online First：05 May 2013，
  
  Published：05 May 2013
- 稿件说明：
移动端阅览
ZHANG Xiaodong, CHANG Renjie, ZHAO Zongchang. Measurement and prediction of excess molar enthalpies of ternary working solutions 1-butyl-3-methylimidazolium dibutylphosphate + methanol/ethanol + water[J]. CIESC Journal, 2013, (5): 1520-1525.
DOI：

ZHANG Xiaodong, CHANG Renjie, ZHAO Zongchang. Measurement and prediction of excess molar enthalpies of ternary working solutions 1-butyl-3-methylimidazolium dibutylphosphate + methanol/ethanol + water[J]. CIESC Journal, 2013, (5): 1520-1525. DOI： 10.3969/j.issn.0438-1157.2013.05.003.

摘要

采用绝热量热法测量了由离子液体1-丁基-3-甲基咪唑磷酸二丁酯([bmim][DBP])分别与CH3OH、C2H5OH和H2O所组成的3个二元工质溶液体系[bmim][DBP](1)+ CH3OH(2)/C2H5OH(2)/H2O(2)

以及2个三元工质溶液体系[bmim][DBP](1)+ CH3OH(2)/C2H5OH(2)+ H2O(3)在298.15 K和常压下的摩尔混合焓HmE。利用Gibbs-Helmholtz方程和NRTL活度系数模型

对每个二元溶液体系摩尔混合焓的实验数据进行关联

获得模型方程中的组分作用参数。摩尔混合焓的模型拟合值与实验值的平均相对偏差分别为1.81%、1.44%和0.72%。在此基础上预测了2个三元工质溶液体系的摩尔混合焓。结果表明:三元工质溶液体系的摩尔混合焓在实验浓度范围内均为负值

混合为放热过程。表明三元工质溶液具有成为吸收制冷循环新工质溶液的基本特征;采用NRTL模型预测2个三元溶液体系摩尔混合焓的计算值与实验值的平均相对误差分别为2.31%、2.49%。

Abstract

The excess molar enthalpies of binary and ternary working solutions containing ionic liquid

1-butyl-3-methylimidazolium dibutylphosphate

(1)+ CH3OH(2)/C2H5OH(2)/H2O(2)and(1)+ CH3OH(2)/C2H5OH(2)+ H2O(3)were measured with an adiabatic calorimeter at 298.15 K under the normal atmospheric pressure.The experimental excess molar enthalpies of binary working solutions were correlated with non-random two liquid(NRTL)activity coefficient model

and the binary interaction parameters were obtained.The average relative deviations between the correlated excess molar enthalpies and the experimental values for three binary solutions are 1.81%

1.44% and 0.72%.For the excess molar enthalpies of two ternary solutions predicted based on the binary interaction parameters

the average relative deviations between the predicted and the experimental excess molar enthalpies are 2.31% and 2.49%.The excess molar enthalpies for the binary solutions and the ternary solutions are negative in the whole range of IL concentration

so the mixing processes of[bmim] with water and methanol or ethanol are exothermic

which is one of the basic property of working solution in absorption cycles.

关键词

Keywords

references

Views

351

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Measurement and correlation of vapor pressure for 1-butyl-3- methylimidazolium dibutylphosphate and water/alcohol

Experimental study of solubility and viscosity of R513A and PVE lubricants

One-step extraction and separation of high purity chitin based on choline ionic liquid

Extraction of bicyclic S/N-compounds from FCC diesel with ionic liquid: experimental and molecular insight

Hypergolic ignition characteristics and propulsion performance of imidazolium dicyanamide ionic liquids blended with furfuryl alcohol

Related Author

常仁杰

HU Yansong

YANG Zhao

GAO Lei

ZHANG Bujian

FENG Mi

ZHANG Jie

LYU Xingmei

Related Institution

大连理工大学化工与环境生命学部

School of Mechanical Engineering, Tianjin University

Institute of Process Engineering, Chinese Academy of Sciences

Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology

Beijing BW Techtextile Company Limited by Shares

⁰