| CO2在全氟羧酸离子交换膜内促进传质特性的研究 |
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| 引用本文： | 曾作祥 施亚钧. CO2在全氟羧酸离子交换膜内促进传质特性的研究[J]. 高校化学工程学报, 1993, 7(1): 34-40 |
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| 作者姓名： | 曾作祥 施亚钧 |
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| 作者单位： | 华东化工学院化工研究所(曾作祥，施亚钧)，华东化工学院化工研究所(薛为岚) |
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| 摘 要： | 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。
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| 关 键 词： | 二氧化碳 离子交换膜 促进传质 |
Facilitated Transport of CO_2 in Perfluorocarboxylic Acid Ion Exchange Membranes |
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| Zeng Zuoxiang Shi Yajun Xue Weilan. Facilitated Transport of CO_2 in Perfluorocarboxylic Acid Ion Exchange Membranes[J]. Journal of Chemical Engineering of Chinese Universities, 1993, 7(1): 34-40 |
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| Authors: | Zeng Zuoxiang Shi Yajun Xue Weilan |
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| Affiliation: | East China University of Chemical Technology |
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| Abstract: | The facilitated transport membranes were prepared by exchanging monopositive ethylene diamine (EDA) ions for Na~+ in perfluorocarboxylic acid films. At industrially interesting conditions, the permeation data of CO_2 and CO_2/N_2 were measured. Facilitation factors for CO_2 up to 13.8 were calculated form the transport data, and separation factors for CO_2/N_2 up to 316 were obtained. A reaction equilibrium model was proposed to predict facilitation factors, the predicted results were in good agreement with experimental values. |
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| Keywords: | Facilitated mass transfer Ion exchange membrane Membrane separation |
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