CO 2在全氟羧酸离子交换膜内促进传质特性的研究Facilitated Transport of CO2 in Perfluorocarboxylic Acid Ion Exchange Membranes
曾作祥,施亚钧,薛为岚
摘要(Abstract):
本文以全氟羧酸离子交换膜为支撑体、乙二胺(EDA)为活性络合剂、制备促进传质膜。在常用的工业条件下,测定了纯CO_2以及CO_2/N_2二元混合物在该膜内的渗透通量。实测结果表明,此膜对CO_2的促进因子可达13.8,而对CO_2/N_2的分离因子高达316。本文假设促进传质过程的控制步骤为气体在膜相的扩散,据此导出了相应的机理模型,该模型与实测结果吻合良好。
关键词(KeyWords): 促进传质;离子交换膜;膜分离
基金项目(Foundation):
作者(Author): 曾作祥,施亚钧,薛为岚
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