中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Difference of ZSM-5 zeolites Synthesized with Various Templates

文献类型:会议论文

作者Sang SY(桑石云) ; Chang FX(常福祥) ; Liu ZM(刘中民) ; He ZQ(何长青) ; He YL(何艳丽) ; Xu L(许磊)
出版日期2003-10-13
会议名称3rd asia-pacific congress on catalysis
会议日期2003-10-13
会议地点中国
页码615/2
通讯作者刘中民
中文摘要zsm-5 zeolites were synthesized using various templates(n-butylamine(bta),ethylamine(eta), isopropylamine(ipa), ethylenediamine(eda), ethanol(etl), ethanol-ammonium(etl-am) and no template(nt)) with the molar oxide compositions of the reactants of 88.4-100sio2:1.0al2o3: 7.66-8.3na2o:3500-3880h2o under carefully controlled procedures and conditions to ensure similar si/al ratio of the products. the synthesized samples were characterized by xrd, sem, xrf, nh3-tpd and bet surface area measurements in order to understand the template effects and the differences of the zsm-5 samples. the synthesized crystals were found to be pure and of high crystallinity. sem results indicated that the samples showed difference in morphology, particle size and physicochemical property under similar synthesized conditions. the si/al ratio and bet specific surface area of the products were also different. nh3-tpd results showed that the samples synthesized without template had fewer strong acid sites than the samples synthesized with template. n-hexane cracking reaction was carried out over the samples to evaluate the catalytic properties. the samples synthesized with various templates were effective in n-hexane cracking reaction. the sample synthesized without template showed the highest activity. at the same time, the samples synthesized also showed different selectivity for olefin and alkane. the sample (nt) showed a relatively low selectivity for propene and a high selectivity for the formation of propane and benzene.
会议主办者dalian institute of chemical physics
学科主题物理化学
语种中文
源URL[http://159.226.238.44/handle/321008/111318]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
推荐引用方式
GB/T 7714
Sang SY,Chang FX,Liu ZM,et al. Difference of ZSM-5 zeolites Synthesized with Various Templates[C]. 见:3rd asia-pacific congress on catalysis. 中国. 2003-10-13.

入库方式: OAI收割

来源:大连化学物理研究所

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