期刊
CHEMICAL ENGINEERING RESEARCH & DESIGN
卷 91, 期 7, 页码 1335-1342出版社
INST CHEMICAL ENGINEERS
DOI: 10.1016/j.cherd.2013.01.022
关键词
Mixed matrix membranes; Gas separation; Polyimides; SAPO-34 zeolite; Matrimid (R)
Different SAPO-34 zeolite loaded Matrimid (R) 5218 mixed matrix membranes (MMMs) were prepared by solution casting method and characterized using XRD and SEM analysis. Findings showed that semi crystalline neat polymer becomes more crystalline after thermal treatment at higher temperatures close to Matrimid (R) 5218 glass transition temperature. Furthermore, incorporation of crystalline filler particles of SAPO-34 zeolite resulted in more and more crystallinity of the MMMs. SEM images also exhibited acceptable contacts between the filler particles and the polymer chains. Permeation measurement showed that CO2 permeabilities and CO2/CH4 selectivities of the MMM with 20 wt% loading of SAPO-34 zeolite particles up to 6.9 (Barrer) and 67, respectively. This can be attributed to size discrimination of SAPO-34 pores that falls between CO2 and CH4 kinetic diameters. (C) 2013 The Institution of Chemical Engineers. Published by 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