Different Preparation Methods of Ni-FAU(Y) Zeolite for Nitric Oxide Reduction

Abstract

The effect of Ni cation supported on FAU(Y) zeolite was prepared by aqueous solution ion exchange and incipient wetness impregnation methods in the selective catalytic reduction of nitric oxide using hydrogen as the reactant in packed bed reactor. 0.5 and 3.5 wt% of Ni (II) metals were loaded in the FAU(Y) zeolite. The samples were characterized by X-ray diffraction, X-ray fluorescence and scanning electron microscope. The obtained Ni/FAU has enlarged pore size of octahedral shaped crystals with approximately 0.22 ± 0.085 μm diameter. Ni loading did not change the structure of FAU(Y) zeolite. Ni (II) loading with 3.5 wt% to FAU-Y zeolite by incipient wetness impregnation method was shown higher nitric oxide conversion than aqueous solution ion exchange method.