MSOPOROUS ZSM-5 CATALYSTS PREPARED BY DIFFERENT CONDITION OF TREATMENT WITH NAOH SOLUTION

The catalytic stability of ZSM-5 in propane cracking was investigated with different condition treatment in NaOH solution. Alkali treatment may lead to changes in structural properties withselective extraction of siliceous species and a few amount of Al extraction from the structure.In thiswork four condition of alkali treatment was studied in catalytic cracking of propane. The results show that the highest ratio of the propylene/ethylene is obtained by severe condition over M1-H-ZSM-5 and is about 1.

کلیدواژه ها:

Mesopores ، Desilication ، ZSM-5 ، Catalytic cracking