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dc.contributor.authorYuan, Xiaohong
dc.contributor.author袁晓红
dc.contributor.authorZhao, Yubao
dc.contributor.author赵玉宝
dc.contributor.authorJin, Yanxian
dc.contributor.author金燕仙
dc.contributor.authorWeng, Weizheng
dc.contributor.author翁维正
dc.contributor.authorWan, Huilin
dc.contributor.author万惠霖
dc.date.accessioned2011-10-08T13:49:06Z
dc.date.available2011-10-08T13:49:06Z
dc.date.issued2006
dc.identifier.citationCHINESE JOURNAL OF CATALYSIS,2006,27(1):79-85zh_CN
dc.identifier.issn0253-9837
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10873
dc.description.abstractSulfated zirconia (SO42--ZrO2) samples were prepared by a modified two-step method (refluxing ZrO(OH)(2) precursor in basic solution followed by drying and (NH4)(2)SO4 impregnation) and then impregnated with a LiCl solution to give the SO42--ZrO2-supported LICI catalysts with Li mass content of 0.5% similar to 15%. The catalysts were characterized by X-ray diffraction, scanning electron microscopy, N-2 adsorption, temperature-programmed desorption-mass spectrometry, and X-ray photoelectron spectroscopy. The results show that with increasing LiCl loading, the specific surface area and acidity of the catalysts as well as the volume fraction of tetragonal zirconia in the catalysts decrease, while the catalytic performance of the catalysts for oxidative dehydrogenation of ethane (ODHE) to ethylene increases. Over the LiCl/SO42--ZrO2 catalyst with a Li content of 15% ethylene yield of 77.8% with an ethane conversion of 90.6% is achieved at 650 degrees C, and the yield higher than 71% is maintained over a period of 24 h. The textural structure of ZrO? has little effect on the catalytic behavior of the LiCl/SO42--ZrO2 catalysts. The specific surface area of SO42--ZrO2 samples prepared by the fled two-step method is much bigger than that of the SO42--ZrO2 samples made by the method reported in literature, and therefore more LiCl call be loaded on unit mass of support. This is favorable to improve the catalyst stability and slow down catalyst deactivation during the ODHE reaction due to the loss of LiCl.zh_CN
dc.language.isozhzh_CN
dc.publisherSCIENCE PRESSzh_CN
dc.subjectlithium chloridezh_CN
dc.subjectsulfated zirconiazh_CN
dc.subjectsupported catalystzh_CN
dc.subjectethanezh_CN
dc.subjectoxidative dehydrogenationzh_CN
dc.subjectethylenezh_CN
dc.titleOxidative dehydrogenation of ethane to ethylene over LiCl/SO42--ZrO2 catalystzh_CN
dc.typeArticlezh_CN


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