Experimental investigation of the permeability and selectivity of supported ionic liquid membranes for CO2/He separation at temperatures up to 125°C

被引：137

作者：

Ilconich, Jeffery

Myers, Christina

Pennline, Henry

Luebke, David

机构：

[1] Natl Energy Technol Lab, South Pk, PA 15129 USA

[2] RDS, Parsons, South Pk, PA 15129 USA

来源：

JOURNAL OF MEMBRANE SCIENCE | 2007年 / 298卷 / 1-2期

关键词：

carbon dioxide; ionic liquid; membranes; diffusivity; temperature dependence;

D O I：

10.1016/j.memsci.2007.03.056

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Supported liquid membranes have been prepared by impregnation of commercial porous polymer films with the ionic liquid 1-n-hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide. The ionic liquid has been characterized, and the membranes have been tested to determine performance in the selective separation of CO2 from He. Experiments were conducted in a constant pressure system, and pure gas permeability/selectivity data are reported. Membranes prepared with polysulfone supports have been found to be stable to 125 degrees C. The CO2 permeability of the membranes increases from 744 to 1200 barter as the temperature increases from 37 to 125 degrees C. The CO2/He selectivity decreased from 8.7 to 3.1 over the same temperature range. (c) 2007 Elsevier B.V. All rights reserved.

引用

收藏

页码：41 / 47

页数：7

相关论文

共 30 条

[1] Examination of the potential of ionic liquids for gas separations [J].

Baltus, RE ;

Counce, RM ;

Culbertson, BH ;

Luo, HM ;

DePaoli, DW ;

Dai, S ;

Duckworth, DC .

SEPARATION SCIENCE AND TECHNOLOGY, 2005, 40 (1-3) :525-541

[2] Facilitated transport of CO2 across a liquid membrane:: Comparing enzyme, amine, and alkaline [J].

Bao, Lihong ;

Trachtenberg, Michael C. .

JOURNAL OF MEMBRANE SCIENCE, 2006, 280 (1-2) :330-334

[3] POLYMERIC MEMBRANES BASED ON BISPHENOL-A FOR GAS SEPARATIONS [J].

BARBARI, TA ;

KOROS, WJ ;

PAUL, DR .

JOURNAL OF MEMBRANE SCIENCE, 1989, 42 (1-2) :69-86

[4] Diffusion and solubility measurements in room temperature ionic liquids [J].

Camper, D ;

Becker, C ;

Koval, C ;

Noble, R .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (01) :445-450

[5]

Cowie J., 1991, POLYM CHEM PHYS MODE

[6] Liquid phase behavior of imidazolium-based ionic liquids with alcohols: effect of hydrogen bonding and non-polar interactions [J].

Crosthwaite, JM ;

Aki, SNVK ;

Maginn, EJ ;

Brennecke, JF .

FLUID PHASE EQUILIBRIA, 2005, 228 :303-309

[7] Phase transition and decomposition temperatures, heat capacities and viscosities of pyridinium ionic liquids [J].

Crosthwaite, JM ;

Muldoon, MJ ;

Dixon, JK ;

Anderson, JL ;

Brennecke, JF .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2005, 37 (06) :559-568

[8] Liquid phase behavior of imidazolium-based ionic liquids with alcohols [J].

Crosthwaite, JM ;

Aki, SNVK ;

Maginn, EJ ;

Brennecke, JF .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (16) :5113-5119

[9] Temperature and pressure dependence of the viscosity of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate [J].

Harris, KR ;

Woolf, LA ;

Kanakubo, M .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2005, 50 (05) :1777-1782

[10] Permeation of wet CO2/CH4 mixed gas through a liquid membrane supported on surface of a hydrophobic microporous membrane [J].

Ito, A ;

Duan, SH ;

Ikenori, Y ;

Ohkawa, A .

SEPARATION AND PURIFICATION TECHNOLOGY, 2001, 24 (1-2) :235-242