| Y型沸石/炭杂化膜的制备及其气体分离性能 |
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| 引用本文： | 王楠,王同华,李琳,刘庆岭,刘诗丽,郑青春.Y型沸石/炭杂化膜的制备及其气体分离性能[J].高校化学工程学报,2009,23(1). |
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| 作者姓名： | 王楠 王同华 李琳 刘庆岭 刘诗丽 郑青春 |
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| 作者单位： | 大连理工大学,化工学院,材料化工系,精细化工国家重点实验室,炭素材料研究室膜科学与技术研究开发中心,辽宁,大连,116012 |
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| 摘 要： | 以聚酰胺酸为前驱体,Y型沸石为掺杂物,经高温炭化制备了Y型沸石/炭杂化膜.通过纯组分气体(H2,CO2,O2,N2)的渗透实验对杂化膜的气体渗透性能进行测定,并使用透射电镜,X射线衍射对杂化膜的微结构进行表征.研究了沸石的含量以及炭化温度对杂化炭膜的气体渗透性能和微结构的影响.结果表明,随着膜内沸石含量的提高,Y型沸石/炭杂化膜的气体渗透性能明显提高,而随着炭化温度的升高,Y型沸石/炭杂化膜的渗透系数降低,选择性提高.与纯炭膜相比,Y型沸石/炭杂化膜在保持高O2N2选择性的前提下,其渗透性能显著提高.炭化温度为700℃,沸石含量为15%,Y型沸石/炭杂化膜O2的气体渗透系数为501 bareer,O2/N2选择性为15.6.当炭化温度超过800℃以后,杂化膜中的沸石晶体结构被破坏,其气体渗透系数接近纯炭膜的气体渗透系数.因此,保持沸石孔道结构的完整是制备高性能沸石/炭杂化膜的关键因素之一.
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| 关 键 词： | Y型沸石 杂化膜 渗透性 气体分离 |
Fabrication and Gas Separation Properties of Zeolite Y/Carbon Hybrid Membranes |
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| WANG Nan,WANG Tong-hua,LI Lin,LIU Qing-ling,LIU Shi-li,ZHENG Qing-chun.Fabrication and Gas Separation Properties of Zeolite Y/Carbon Hybrid Membranes[J].Journal of Chemical Engineering of Chinese Universities,2009,23(1). |
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| Authors: | WANG Nan WANG Tong-hua LI Lin LIU Qing-ling LIU Shi-li ZHENG Qing-chun |
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| Affiliation: | Carbon Research Laboratory and R&D Center of Membrane Science;State Key Laboratory of Fine Chemicals;Department of Material Science and Chemical Engineering;School of Chemical Engineering;Dalian University of Technology;Dalian 116012;China |
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| Abstract: | Zeolite Y/Carbon hybrid carbon membranes were fabricated by carbonizing the polyimide precursors hybridized by Zeolite Y. The gas permeation performance of the prepared hybrid carbon membranes were tested by using pure H2, CO2, O2 and N2 separately, and the microstructure of the hybrid carbon membranes were characterized by XRD and TEM. The effects of zeolite loading and carbonization temperature on the permeability and microstructure of the hybrid carbon membranes were also investigated. The results show t... |
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| Keywords: | Zeolite Y hybrid membrane carbon membrane gas separation |
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