期刊
CHEMICAL ENGINEERING RESEARCH & DESIGN
卷 133, 期 -, 页码 222-234出版社
INST CHEMICAL ENGINEERS
DOI: 10.1016/j.cherd.2018.03.028
关键词
Nanocomposite membrane; Polyurethane; Multiwall carbon nanotube; Tetraethylenepentamine; CO2/CH4 separation; Modeling
资金
- Iran National Science Foundation (INSF)
In the current study, multiwall carbon nanotubes (MWCNTs) were functionalized with Tetraethylene Pentamine (TEPA) and added into polyurethane (PU) polymer matrix to prepare PU-MWCNT-TEPA nanocomposite membranes. The prepared membranes were characterized using FT-IR, XRD and SEM analysis. The analysis results showed that MWCNTs were properly functionalized with TEPA and also uniformly dispersed in polymer matrix. The CO2 permeability increased by 99.8% at 10 wt.% loading of MWCNTs-TEPA. The nanocomposite membrane's CO2/CH4 selectivity was also increased by 9.6%. Impacts of operating pressure and temperature on the membranes' CO2 permeability and CO2/CH4 ideal selectivity were also investigated. Finally, the gaseous penetrants permeabilities through the nanocomposite membranes were predicted using the Maxwell, the KJN, and the modified KJN models by AAREs of 31.4-35.2, 27.8-31.6, and 4.4-5.7%, respectively. (C) 2018 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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