Effect of Calcination Temperature on Performance of Ultrafine Nickel Catalyst for Hydrodearomatics

Ultrafine nickel hydrogenation catalyst NiO-MoO3/SiO2-TiO2 was prepared by in-situ sol-gel method,and the influence of process conditions on catalyst′s performance was studied.Temperature programmed reduction(TPR) technique was used for studying ultrafine nickel hydrogenation catalyst NiO-MoO3/SiO2-TiO2 in this system.It was observed that the reduction behavior of catalysts was dependent on the calcination temperature of their precursors, and the higher ability of hydrogen uptakes has been obtained in the pretreatment of them at 480℃ and 600℃.The results of TPR analysis were consistent with the evaluation of catalytic activity in the hydrodearomatics of jet fuel.