Influence of the alcohol molecular size in the dehydration reaction catalysed by carbon-supported heteropolyacids

L. R. PIZZIO,; P. G. VÁZQUEZ,; C. V. CÁCERES; M. N. BLANCO; E. N. ALESSO; M. I. ERLICH,; R. TORVISO,; L. FINKIELSZTEIN; B. LANTAÑO,; G. Y. MOLTRASIO,; J. M. AGUIRRE

CATALYSIS LETTERS

Plenum Publishing Corporation

Año: 2004 vol. 93 p. 67 - 73

1011-372X

Abstract  The catalytic performance of tungstophosphoric and molybdophosphoric acids supported on two commercial carbons, for dehydration reactions of several alcohols, was studied. The alcohol conversion depended on their molecular size, while selectivity to alkenes was also related to cyclodimer molecular size formed by certain alkenes in acidic medium. Acidity and mean pore diameter of the catalysts showed an influence on the conversion degree of the alcohols into alkenes and also into alkene cyclodimerization.