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

• Published in: Journal of membrane science Vol. 500; pp. 115 - 123
• Main Authors: Salinas, Octavio, Ma, Xiaohua, Litwiller, Eric, Pinnau, Ingo
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.02.2016
• Subjects: artificial membranes; carbon; Carbon molecular sieve; diffusivity; ethane; ethylene; Ethylene/ethane separation; micropores; Mixed-gas permeation; permeability; Polyimide of intrinsic microporosity; polymers; porous media; pyrolysis; solubility; sorption; temperature; Carbon molecular sieve; Mixed-gas permeation; Polyimide of intrinsic microporosity; Ethylene/ethane separation

An intrinsically microporous polymer with hydroxyl functionalities, PIM-6FDA-OH, was used as a precursor for various types of carbon molecular sieve (CMS) membranes for ethylene/ethane separation. The pristine polyimide films were heated under controlled N2 atmosphere at different stages from 500 to...