Direct decomposition of NO by microwave heating over Fe/NaZSM-5

Catalytic decomposition of NO was studied over Fe/NaZSM-5 catalyst. Novel results were observed with the microwave heating mode. The conversion of NO to N2 increased remarkably with the increasing of Fe loading. The effects of a series of reaction parameters, including reaction temperature, O2 concentration, NO concentration, gas flow rate and H2O addition, on the productivity of N2 have been investigated. It is shown that the catalyst exhibited good endurance to excess O2 in the microwave heating mode. Under all reaction conditions, NO converted predominantly to N2. The highest conversion of NO to N2 was up to 70%.