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dc.contributor.authorCheng, ZL
dc.contributor.author程志林
dc.contributor.authorChao, ZS
dc.contributor.author晁自胜
dc.contributor.authorFang, WP
dc.contributor.author方维平
dc.contributor.authorLin, HQ
dc.contributor.author林海强
dc.contributor.authorWan, HL
dc.contributor.author万惠霖
dc.date.accessioned2012-04-09T01:21:37Z
dc.date.available2012-04-09T01:21:37Z
dc.date.issued2003
dc.identifier.citationACTA CHIMICA SINICA,2003,61(12):1944-1948zh_CN
dc.identifier.issn0567-7351
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/12015
dc.description.abstractThe compact ZSM-5 membranes was synthesized on porous alumina substrates by pre-coating narrosized ZSM-5 seeds and then employing the twice hydrothermal synthesis with adding the promoter NaCl. Effect of Na+ concentration on the formation of membrane was investigated in this work, indicating that adding a certain mount of NaCl can boost the growth of zeolite crystals on the substrates, thus forming the compact membrane consisted of highly intergrown crystals. The separating performance of zeolite membranes indicated that using a mixture with a composition of Al2O3: 84SiO(2): 10Na(2)O: 100NaCl: 15TPABr: 3500H(2)O as synthesis gel, the ideal selectivity of H-2/C3H8 could reach a maximum value of 23.7 at room temperature and pressure difference of 0.1 MPa, and the permselectivity decreased to 9.4 at testing temperature of 200 degreesC, which is still higher than the corresponding Knudsen diffusion value (4.69), suggesting that the membrane synthesized by this method was defect-free.zh_CN
dc.language.isozhzh_CN
dc.publisherSCIENCE CHINA PRESSzh_CN
dc.subjectzeolite membranezh_CN
dc.subjectnanometerzh_CN
dc.subjectZSM-5zh_CN
dc.subjectgas separationzh_CN
dc.titleSynthesis of compact ZSM-5 zeolite membrane by adding the promoter NaClzh_CN
dc.typeArticlezh_CN


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