CO2-Tolerant SrFe0.8Nb0.2O3−ο/sub>–Carbonate Dual-Phase Multichannel Hollow Fiber Membrane for CO2 Capture

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• 作者：Xin Jiang ; Jiawei Zhu ; Zhengkun Liu ; Shaobin Guo ; Wanqin Jin
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2016
• 出版时间：March 30, 2016
• 年：2016
• 卷：55
• 期：12
• 页码：3300-3307
• 全文大小：454K
• ISSN：1520-5045

文摘

Ceramic–carbonate dual-phase membranes have attracted a lot of attention because of the emission of CO₂ and environmental problems. In this study, a dense SrFe_0.8Nb_0.2O_3−δ–carbonate dual-phase multichannel hollow fiber membrane has been successfully prepared via a phase inversion–sintering technique and impregnation. The morphology, crystal structure, phase stability, breaking load, and CO₂ permeation flux of the as-prepared membranes were systematically investigated. The membrane not only had a higher CO₂ permeation flux but also was of good thermomechanical stability in thermal recycles. Meanwhile, the membrane can be operated stably at 973 K over 200 h without any degradation of CO₂ permeation flux. Our work demonstrates that the ceramic–carbonate dual-phase mixed-conducting multichannel hollow fiber membrane is a promising candidate for postcombustion CO₂ capture.