Poly(ethyleneimine) infused and functionalized Torlon^庐-silica hollow fiber sorbents for post-combustion CO₂ capture

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• 作者：Fuyue Stephanie Li ; Ying Labreche ; Ryan P. Lively ; Jong Suk Lee ; Christopher W. Jones ; William J. Koros ; ^{wkoros@chbe.gatech.edu" class="auth_mail}
• 关键词：Polymer modification ; Poly(ethyleneimine) ; Fiber sorbents
• 刊名：Polymer
• 出版年：24 March, 2014
• 年：2014
• 卷：55
• 期：6
• 页码：1341-1346
• 全文大小：1028 K

文摘

Organic-inorganic hybrid materials functionalized with amine-containing reagents are emerging as an important class of materials for capturing carbon dioxide from flue gas. Polymeric silica hollow fiber sorbents are fabricated through the proven dry-jet/wet-quench spinning process. In our study, a new technique for functionalizing polymeric silica hollow fiber sorbents with poly(ethyleneimine), followed by a post-spinning infusion step was studied. This two step process introduces a sufficient amount of poly(ethyleneimine) to the polymeric silica hybrid material support to improve the CO₂ sorption capacity due to the added amine groups. The poly(ethyleneimine) infused and functionalized hollow fiber sorbents are also characterized by a thermal gravimetric analyzer (TGA) to assess their CO₂ sorption capacities.