共 45 条
ISOMERIZATION OF BUTENES AS A TEST REACTION FOR MEASUREMENT OF SOLID CATALYST ACIDITY
被引:23
作者:
AGUAYO, AT
[1
]
ARANDES, JM
[1
]
OLAZAR, M
[1
]
BILBAO, J
[1
]
机构:
[1] UNIV BASQUE COUNTRY, DEPT INGN QUIM, APARTADO 644, E-48080 BILBAO, SPAIN
关键词:
D O I:
10.1021/ie00103a014
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
The theoretical and experimental steps necessary for the rigorous usage of the isomerization of n-butenes as a test reaction to measure the surface acidity of microporous solid catalysts have been developed. The experimental study has been carried out with six catalysts of silica-alumina prepared at different levels of acidity strength. Between 155 and 200 °C and from the kinetic data obtained in the integral reactor, the kinetic constants of the reactions 1-butene to cis-butene, 1-butene to transbutene, and cis-butene to transbutene have been calculated. The calculated values have been compared with the values of the surface acidity measured following two conventional methods, the titration with n-butylamine in the liquid phase using Hammet indicators and the adsorption of tert-butylamine at a programmed temperature. © 1990, American Chemical Society. All rights reserved.
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页码:1172 / 1178
页数:7
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