期刊
JOURNAL OF MEMBRANE SCIENCE
卷 476, 期 -, 页码 286-302出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2014.11.037
关键词
CO2 capture with membrane; [Emim][BF4]; Pebax1657; Reverse-selective membranes; Activation energies
The present research investigates deeply the effect of 1-ethyl-3 methylimirlazolium tetrafluoroborate ([Emim][BF4]) ionic liquid on separation performance and transport properties of poly(ether-b-amide6) (Pebax1657) at different operating pressures from 2 to 20 bar and temperatures horn 25 to 65 degrees C.[Emimi [BE4] showed interesting separation factor for CO2/light gases as a solvent and it was expected that its addition to Pebax1657 leads to more amorphous structure, thereby increasing diffusion and permeability of gases, [Emin][BF4] was added to the polymer solution up to 100 wt% of Pebax1657 weight and permeation coefficients of CO2, H-2, CH4 and N-2 through the prepared membranes were measured. The results showed remarkable increment in permeation of all the tested gases, particularly CO2 and ideal selectivity of CO2/H-2 enhanced significantly due to high solubility selectivity of the added compound. Effect of operating conditions on solubility coefficients was also investigated; thus sorption isotherms and activation energies of permeability, solubility and diffusion were calculated. In addition, the membranes were characterized by SEM, DSC, FT-IR spectroscopy and Tensile analysis to inspect changes in their physical and thermal properties, precisely. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据