ISOMERIZATION OF N-BUTANE ON PT/SO42--ZRO2 AND MECHANICAL MIXTURES OF PT/AL2O3+SO42--ZRO2

被引:55
作者
YORI, JC [1 ]
DAMATO, MA [1 ]
COSTA, G [1 ]
PARERA, JM [1 ]
机构
[1] UNIV NACL LITORAL, CONICET, FAC INGN QUIM, INST INVEST CATALISIS & PETROQUIM, RA-3000 SANTA FE, ARGENTINA
关键词
D O I
10.1006/jcat.1995.1124
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
The effect of the incorporation of a metallic phase (Pt) into a superacid catalyst (SO42--ZrO2) for n-butane isomerization was studied. The convenience of supporting Pt directly on the superacid or on alumina and of using the physical mixture as a catalyst was also analyzed. Pt supported on SO42--ZrO2 has the same activity as SO42--ZrO2, but the stability is increased. The bifunctional reaction mechanism is not operating because Pt does not have metallic properties due to a strong interaction with the support under the experimental conditions of reduction (573 K). When Pt is supported on Al2O3 and mixed mechanically with SO42--ZrO2, the activity and stability are increased due to the operation of the bifunctional mechanism. (C) 1995 Academic Press, Inc.
引用
收藏
页码:218 / 223
页数:6
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