Preparation and Oxygen Permeation of U-Shaped Perovskite Hollow-Fiber Membranes
作者： Yanying Wei , Hongfei Liu , Jian Xue , Zhong Li , Haihui Wang
DOI: 10.1002/AIC.12321
关键词:
摘要: The oxygen permeation of dense U-shaped perovskite hollow-fiber membranes based on Ba 0.5 Sr Co 0.8 Fe 0.2 O 3―δ prepared by a phase inversion spinning process is reported. hollow fibers with totally wall were obtained the outer diameter 1.147 mm and inner 0.691 mm. dependences air flow rate shell side, helium core partial pressures, operating temperatures experimentally investigated. According to Wagner theory, it follows that transport through membrane controlled both surface reaction bulk diffusion at temperature ranges 750―950°C. High flux 3.0 ml/(min cm 2 ) was kept for about 250 h 950°C under conditions feed 150 mllmin 50 mllmin.
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