CO<sub>2</sub>/N<sub>2</sub> separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs

ZHAO Yankai; FAN Tengteng; XIE Wenlong; ZHANG Suoying; LIU Chang; FENG Xin; LU Xiaohua

doi:10.11949/j.issn.0438-1157.20170187

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CO₂/N₂ separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs

更新时间：2025-12-10

- CO₂/N₂ separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs
- CIESC Journal Issue 7, Pages: 2771-2780(2017)
- 作者机构：
  
  1. 南京工业大学材料化学工程国家重点实验室,江苏,南京,210009
  2. 江苏富淼膜科技有限公司,江苏,苏州,215613
  3. 江苏亨通光导新材料有限公司,江苏,苏州,215200
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170187
  CLC： Q028.8
- Online First：05 July 2017，
  
  Published：05 July 2017
- 稿件说明：
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ZHAO Yankai, FAN Tengteng, XIE Wenlong, et al. CO₂/N₂ separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs[J]. CIESC Journal, 2017, (7): 2771-2780. DOI: 10.11949/j.issn.0438-1157.20170187.
DOI：

ZHAO Yankai, FAN Tengteng, XIE Wenlong, et al. CO₂/N₂ separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs[J]. CIESC Journal, 2017, (7): 2771-2780. DOI: 10.11949/j.issn.0438-1157.20170187. DOI：

摘要

选用不同种类的室温型离子液体（RTILs）与胆碱脯氨酸离子液体进行混合分别制得[Choline][Pro]/[EMIm][N（CN）2]、[Choline][Pro]/[bmim][PF6]以及[Choline][Pro]/[HMIm][NTf2]混合离子液体，并将其应用于离子液体支撑液膜（SILMs）。考察操作温度、操作压差、RTILs种类和含量对SILMs分离CO2/N2性能的影响。结果表明胆碱脯氨酸/RTILs系列SILMs的CO2通量在343.3～1936.9 barrer之间变化并且CO2/N2选择性为10.3～34.8。对CO2膜过程内在机制探索表明随着[HMIm][NTf2]离子液体在混合离子液体中比例的增加，总阻力1/Km会呈现先降低后升高的趋势。与实验现象中随着[HMIm][NTf2]离子液体在混合离子液体中比例的增加CO2先升高后降低相符。

Abstract

Three mixed ionic liquids ([Choline][Pro]/[EMIm][N(CN)2]

[Choline][Pro]/[bmim][PF6] and [Choline][Pro]/[HMIm][NTf2]) were prepared by mixing room temperature ionic liquids (RTILs) with [Choline][Pro]. They were used to prepare SILMs by the impregnation method. Effects of operating temperature

pressure

type and content of RTILs on CO2/N2 separation performance of SILMs were investigated. The results showed that the CO2 permeability of the SILMs changed between 343.3-1936.9 barrer and CO2/N2 selectivity was in range of 10.3-34.8. Non-equilibrium thermodynamics was used to analyze CO2 transport mechanism in SILMs. The overall resistance showed a trend from decline to rise by increasing the proportion of [HMIm][NTf2] in the mixed ILs

which was in accordance with CO2 permeability in SILMs.

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CO2/N2 separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs

DOI：10.11949/j.issn.0438-1157.20170187

摘要

Abstract

关键词

Keywords

references

CO₂/N₂ separation performance of supported ionic liquid membrane fabricated by [Choline][Pro]/RTILs