Dehydroisomerization of n-butane to isobutene over Pd/SAPO-11 The effect of Si content of SAPO-11, Catalyst preparation and Reaction condition

摘要

The SAPO-11 molecular sieves with different Si content were synthesized and modified by Pd for direct transformation of n-butane to isobutene. The effects of Si content of SAPO-11, catalyst preparation and reaction condition were studied. The catalytic properties of Pd/SAPO-11 varied with Si content of the crystal products. The impregnation time of the catalyst had effect on the product distribution and catalytic activity. The catalytic properties also changed with the reaction time.