High pressure pure- and mixed-gas separation of CO2/CH4 by thermally-rearranged and carbon molecular sieve membranes derived from a polyimide of intrinsic microporosity

• Published in: Journal of membrane science Vol. 447; pp. 387 - 394
• Main Authors: Swaidan, Raja, Ma, Xiaohua, Litwiller, Eric, Pinnau, Ingo
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.11.2013; Elsevier
• Subjects: artificial membranes; Carbon; Carbon dioxide; Carbon molecular sieve; Chemistry; CO2/CH4 mixed-gas permeation; Colloidal state and disperse state; Exact sciences and technology; Gas separation; General and physical chemistry; heat treatment; Intrinsic microporosity; Membranes; methane; Microporosity; Molecular sieves; natural gas; Permeability; Polyimide resins; polymers; Porous materials; Selectivity; Thermal-rearrangement; Gas separation; Intrinsic microporosity; Carbon molecular sieve; CO2/CH4 mixed-gas permeation; Thermal-rearrangement; Methane; Polyimide; Separation; CH; Permeation; CO; Porous material; Carbon; Molecular sieve; mixed-gas permeation; High pressure; Microporosity; Membrane

Natural gas sweetening, one of the most promising venues for the growth of the membrane gas separation industry, is dominated by polymeric materials with relatively low permeabilities and moderate selectivities. One strategy towards improving the gas transport properties of a polymer is enhancement...