𝑛-Butane Isomerization over Silica-Supported Heteropolyacids: Study of Some Parameters

Table 3

Selectivity values of bifunctional catalysts.

Catalyst	Selectivities (%)
	C1	C2	C3	i-C4	C5	C3^=
HSiW/SiO2 + H2PtCl6	0.1	0.3	1.0	97.5	1.0	0.0	0.0
HSiW/SiO2 + Pt/Al2O3	0.1	0.6	0.7	97.9	0.6	0.0	0.0
HPW/SiO2 + Pt/Al2O3	0.7	2.0	2.3	94.2	0.9	0.0	0.0