Article ID Journal Published Year Pages File Type
1695618 Applied Clay Science 2011 6 Pages PDF
Abstract

In the present study, the effect of 12-tungstophosphoric acid (HPW) immobilisation on the catalytic activity of H3PW12O40/mesoporous acid-activated bentonite catalysts (AAB) was investigated. The catalysts were characterised by XRD, IR, SEM and BET, and the activity of acid-activated bentonite catalysts with various loadings of HPW were studied in the conversion of vapour-phase 2-propanol. The results indicated that the conversion of 2-propanol increased substantially as the temperature increased from 343 K to 553 K. Alternatively, the conversion and selectivity of the reaction increased with an increase in the HPW concentration. Moreover, the proposed catalysts enhanced the oxidation of 2-propanol to acetone and suppressed the acid-catalysed dehydration of propanol to propylene.

Research Highlights► Increase of HPW loadings affects the textural properties of activated bentonite. ► No reflections of the polyacid were detected in the XRD patterns. ► The conversion of 2-propanol was found to increase with increasing temperature. ► The conversion and product selectivity increase with the HPW loading on support.

Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Geochemistry and Petrology
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