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Microwave-heating synthesis and gas separation performance of NaA zeolite membrane

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Microwave-heating synthesis and gas separation performance of NaA zeolite membrane.htm (413bytes)
Date
2005-01
Author
Zhi-Lin Cheng
Zan Liu
Hui-Lin Wan
万惠霖
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  • 化学化工-已发表论文 [14469]
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Abstract
The paper presented novel synthesis of NaA zeolite membrane with good performance using microwave heating. The method involved two steps, prior seeding 120 nm of LTA crystals on substrate and then employing a secondary hydrothermal synthesis. Effects of seeding times, synthesis time and synthesis times were investigated in this work. The quality evaluation of membranes respectively used single component gases (H-2 and N-2) and H-2/N-2 (equivalent volume) mixture. The ideal H-2/N-2 selectivity increased from 1.90 of the substrate to 6.37 of the three-stage synthesized membrane, which was distinctly higher than the corresponding Knudsen diffusion selectivity of 3.74. However, the real H-2/N-2 selectivity of the three-stage synthesis was much lower than the corresponding ideal selectivity and close to the corresponding Knudsen diffusion selectivity of 3.74.
Citation
CHINESE JOURNAL OF CHEMISTRY,2005,23(1):28-31
URI
http://dx.doi.org/doi:10.1002/cjoc.200590007
https://dspace.xmu.edu.cn/handle/2288/11279

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