High-performance carbon molecular sieve membranes for ethylene/ethane separation derived from an intrinsically microporous polyimide

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High-performance carbon molecular sieve membranes for ethylene/ethane separation derived from an intrinsically microporous polyimide

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作者：Octavio Salinas ; Xiaohua Ma ; Eric Litwiller ; Ingo Pinnau ; ^{ingo.pinnau@kaust.edu.sa" class="auth_mail" title="E-mail the corresponding author}
关键词：Ethylene/ethane separation ; Carbon molecular sieve ; Polyimide of intrinsic microporosity ; Mixed-gas permeation
刊名：Journal of Membrane Science
出版年：2016
出版时间：15 February 2016
年：2016
卷：500
期：Complete
页码：115-123
全文大小：2203 K

文摘

•: First report of ethylene/ethane separation of a PIM-polyimide.
•: PIM-6FDA-OH-derived CMS (pyrolized at 800 °C) exhibits the highest pure-gas selectivity reported to date (e99d587257cb515c1d77" title="Click to view the MathML source">α_{C₂H₄/C₂H₆} $α_{C_{2} H_{4} / C_{2} H_{6}}$ ~18).
•: Permselectivity of the CMS membranes is completely dominated by diffusivity selectivity.
•: Mixed-gas ethylene/ethane permselectivity decreased from 14 at 4 bar to 8.3 at 20 bar.

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