Alkylation of hydroquinone with tert-butanol over AlSBA-15 mesoporous molecular sieves

被引:19
作者
Xu, BJ
Hua, WM [1 ]
Yue, YH
Tang, Y
Gao, Z
机构
[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
[2] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
关键词
2-tert-butylhydroquinone; 2,5-di-tert-butylhydroquinone; alkylation; mesoporous molecular sieve; AlSBA-15; acidity;
D O I
10.1007/s10562-004-3092-y
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A series of AlSBA-15 catalysts with different pore size and different Si/Al ratio were prepared and characterized by N-2 adsorption and NH3-temperature programmed desorption (NH3-TPD) methods. Their catalytic behaviors for the alkylation of hydroquinone with tert-butanol were studied and compared with that of HZSM-5, HY, HAlMCM-41. It is found that the catalytic activity correlates well with the amount of medium-strong acid sites on the surface of the catalysts, and the selectivity towards 2-tert-Butylhydroquinone has some connection with the pore size of the catalysts. The reusability of the catalyst depends on its hydrothermal stability, which needs to be improved for the AlSBA-15 catalysts.
引用
收藏
页码:95 / 100
页数:6
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