HYDRATION OF PROPENE OVER PROTON-EXCHANGED AND METAL ION-EXCHANGED ZEOLITE CATALYSTS AT ATMOSPHERIC-PRESSURE

被引:5
作者
MORI, H
MIZUNO, N
SHIROUZU, T
KAGAWA, S
IWAMOTO, M
机构
[1] HOKKAIDO UNIV, CATALYSIS RES CTR, SAPPORO, HOKKAIDO 060, JAPAN
[2] MIYAKONOJO NATL COLL TECHNOL, DEPT IND CHEM, MIYAKONOJO 885, JAPAN
[3] NAGASAKI UNIV, FAC ENGN, DEPT IND CHEM, NAGASAKI 852, JAPAN
关键词
D O I
10.1246/bcsj.64.2681
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The gas-phase hydration of propene over proton-exchanged or metal ion-exchanged zeolites with various Si/Al ratios and structures (such as ZSM-5, mordenite, ferrierite, and Y-type) has been studied. It was found that the catalytic activity of proton-exchanged zeolites for the conversion of propene to 2-propanol did not depend on their framework structure, but showed a volcano-shaped dependence on the Al content, as was observed in the hydration of ethene. On the basis of temperature-programmed desorption experiments of NH3 adsorbed on the zeolites, it was confirmed that the activity is controlled by the acidity of the catalysts. The catalytic activity of metal ion-exchanged Y zeolites increased with an increase in the electronegativity of the metal ion.
引用
收藏
页码:2681 / 2685
页数:5
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