Activated alumina is an important matrix material. When added as solid acid to cracking catalyst matrix, it can not only improve the matrix activity, but also make full use of the binding effect of kaolin and molecular sieve to prepare catalysts with matrix activity and good wear resistance.
Activated alumina has a large pore volume, and the catalyst prepared with a large pore volume alumina carrier has higher activity, selectivity and conversion rate than that prepared with a small pore volume carrier.
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