| Preparation of Zeolite X Membranes on Porous Ceramic Substrates with Zeolite Seeds |
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| 作者姓名： | Zhongqiang Xu Qingling Chen Guanzhong LuShanghai Research Institute of Petrochemical Technology Shanghai ChinaInstitute of Industrial Catalysis East China University of Science and Technology Shanghai China |
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| 作者单位： | Zhongqiang Xu，Qingling Chen，Guanzhong LuShanghai Research Institute of Petrochemical Technology，Shanghai 201208，ChinaInstitute of Industrial Catalysis，East China University of Science and Technology，Shanghai 200237，China |
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| 摘 要： | Zeolite X membranes were investigated by in-situ hydrothermal synthesis on porous ceramic tubes precoated with zeolite X seeds or precursor amorphous aluminosilicate, and porous α-Al2O3 ceramic tubes with a pore size of 50-200 nm were employed as supports. Zeolite X crystals were synthesized by the classic method and mixed into deionized water as a slurry with a concentration of 0.2-0.5wt%, having a range of crystal sizes from 0.2 to 2μm. Crystal seeds were pressed into the pores near the inner surface of the ceramic tubes, and crystallization took place at 95℃ for 24-96 h. It was also investigated that Boehmite sol added with zeolite X seeds was precoated on ceramic supports to form a layer of r-Al2O3 by heating, and hydrothermal crystallization could then take place to prepare the zeolite membranes on the composite ceramic tubes. The crystal species were characterized by XRD, and the morphology of the supports subjected to crystallization was characterized by SEM. The composite zeolite membranes hav
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Preparation of Zeolite X Membranes on Porous Ceramic Substrates with Zeolite Seeds |
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| Zhongqiang Xu,Qingling Chen,Guanzhong LuShanghai Research Institute of Petrochemical Technology,Shanghai ,ChinaInstitute of Industrial Catalysis,East China University of Science and Technology,Shanghai ,China.Preparation of Zeolite X Membranes on Porous Ceramic Substrates with Zeolite Seeds[J].Journal of Natural Gas Chemistry,2002(Z2). |
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| Authors: | Zhongqiang Xu Qingling Chen Guanzhong LuShanghai Research Institute of Petrochemical Technology Shanghai ChinaInstitute of Industrial Catalysis East China University of Science and Technology Shanghai China |
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| Institution: | Zhongqiang Xu,Qingling Chen,Guanzhong LuShanghai Research Institute of Petrochemical Technology,Shanghai 201208,ChinaInstitute of Industrial Catalysis,East China University of Science and Technology,Shanghai 200237,China |
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| Abstract: | |
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| Keywords: | inorganic ceramic membrane zeolitic membrane membrane preparation and characterization membrane separation |
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