Abstract
Experimental results are presented for kinetic study on dehydration of isopropyl alcohol over hydrogen form ion exchange resins (Amberlyst 15). The selectivity of propylene in the reaction of dehydration of isopropyl alcohol was dependent on the space velocity and temperature. An effect of mass velocity at the constant space velocity on the reaction rate was little. Apparent activation energy of reaction was 10.1kcal/mole.A role of active sites was investigated by replacing the hydrogen ions with metallic cations. The hydrogen form resins were altered by successively replacing hydrogen ions with sodium, calcium, and aluminium ions respectively. Little conversion was observed at the completely replaced sodium and calcium form resins, while a considerably high conversion rate was obtained at the completely replaced aluminium form resins. Aluminium-containing resins were more active than sodium- or calcium-containing resins of the same hydrogen content, the lowest being sodium-containing resins.
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