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	HY Zeolites Modified by Chemical Liquid Deposition and the Catalytic Performance in Shape-selective tert-Butylation of Naphthalene
	Wang YL(王莹利) ; Xu L(许磊) ; Yu ZX(于政锡) ; Zhang XZ(张新志) ; Liu ZM(刘中民)
	2008-07-13
会议名称	14th international congress on catalysis
会议日期	2008-7-13
会议地点	韩国
页码	216/1
通讯作者	刘中民
中文摘要	hy zeolite was modified by a method of chemical liquid deposition using i-c4h9si(och2ch3)3, followed by post-treatment in the steaming at 873k. the modified zeolites were designed as siy0.1, siy0.3 and siy0.3-st. the pore-opening size change of the modified hy zeolites was characterized by adsorption of o-xylene(0.71nm) and 1,3,5-trimethybenzene(tmb, 0.76nm). studies of the adsorption equilibrium time of o-xylene(t7.1) and 1,3,5-tmb(t7.6) indicated that pore-opening size was narrowed gradually in the order of samples hy, siy0.1, siy0.3 and siy0.3-st. and the suppressed effect was stronger on larger molecule with narrowing pore-opening size. the catalytic performance was investigated with liquid phase tert-butylation of naphthalene in autoclave reactor. hy catalyst exhibited the lower selectivity for 2,6-di-tert-butylnaphthalen (dtbn). the silica-deposited hy improved the para-selectivity, and 2,6-/2,7-dtbn ratios were increased to 5.91 and 6.21 over siy0.1 and siy0.3, respectively. siy0.3-st catalyst gave the highest para-selectivity, with 2,6-/2,7-dtbn ratio of 6.62. the result showed that there was a direct correlation between 2,6-/2,7-dtbn ratio and t7.6/t7.1. therefore, the close relations among the narrowing of catalysts pore-opening size, the differentiation of adsorption rate and para-selectivity were established.
会议主办者	韩国化学工程研究所
学科主题	物理化学
语种	中文
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/113138]
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	Wang YL,Xu L,Yu ZX,et al. HY Zeolites Modified by Chemical Liquid Deposition and the Catalytic Performance in Shape-selective tert-Butylation of Naphthalene[C]. 见:14th international congress on catalysis. 韩国. 2008-7-13.

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