Isomerization of n-butane on Pt/SO{sup 2{minus}}{sub 4} - ZrO{sub 2} and mechanical mixtures of Pt/Al{sub 2}O{sub 3} + SO {sup 2{minus}}{sub 4} -ZrO{sub 2}

Journal Article · Mon May 01 00:00:00 EDT 1995 · Journal of Catalysis

DOI:https://doi.org/10.1006/jcat.1995.1124· OSTI ID:96282

Yori, J C; D`Amato, A; Costa, G ^[1]

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1. Universidad Nacional del Litoral-CONICET, Santa Fe (Argentina); and others

The effect of the incorporation of a metallic phase (Pt) into a superacid catalyst (SO {sup 2{minus}}{sub 4} - ZrO{sub 2}) for n-butane isomerization was studies. The convenience of supporting Pt directly on the super-acid or on alumina and of using the physical mixture as a catalyst was also analyzed. Pt supported on SO {sup 2{minus}}{sub 4} -ZrO{sub 2} has the same activity as So{sup 2{minus}}{sub 4} -ZrO{sub 2}, but the stability is increased. The bifunctional reaction mechanism is not operating because Pt does not have the metallic properties due to a strong interaction with the support under the experimental conditions of reduction (573 K). When Pt is supported on Al{sub 2}O{sub 3} and mixed mechanically with SO{sup 2{minus}}{sub 4} -ZrO{sub 2}, the activity and stability are increased due to the operation of the bifunctional mechanism. 14 refs., 5 figs., 3 tabs.

• OSTI ID: 96282
• Journal Information: Journal of Catalysis, Vol. 153, Issue 2; Other Information: PBD: May 1995
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
10 SYNTHETIC FUELS
ALUMINIUM OXIDES
CATALYTIC EFFECTS
PLATINUM
BUTANE
ISOMERIZATION
SULFATES
ZIRCONIUM OXIDES
CATALYSTS
CATALYST SUPPORTS