Triptycene dimethyl-bridgehead dianhydride-based intrinsically microporous hydroxyl-functionalized polyimide for natural gas upgrading
详细信息 查看全文
- 作者：Fahd Alghunaimi ; Bader Ghanem ; Nasser Alaslai ; Mohsin Mukaddam ; Ingo Pinnau ; ingo.pinnau@kaust.edu.sa" class="auth_mail" title="E-mail the corresponding author
- 关键词：Polyimides ; Triptycene ; Hydroxyl functionalization ; Mixed-gas permeation ; Plasticization ; Physical aging ; Natural gas
- 刊名：Journal of Membrane Science
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：520
- 期：Complete
- 页码：240-246
- 全文大小：1451 K
文摘
- •
New OH-functionalized polyimide was developed based on 9,10-dimethyl-2,3,6,7-triptycene tetracarboxylic dianhydride.
- •
Aged membrane (250 days) showed excellent gas separation performance for CO2/CH4 separation.
- •
TDA1-APAF polyimide offers simultaneous removal of CO2 and N2 from raw natural gas.
- •
Mixed-gas plasticization resistance up to 30 bar (1:1 CO2/CH4 feed; 35 °C).
- •
10–20% increase in mixture CO2/CH4 selectivity over pure-gas values up to 30 bar.