Synthesis of Ni/NiAlO_x Catalysts for Hydrogenation Saturation of Phenanthrene.

ABSTRACT: The saturation of octahydrophenanthrene was the rate-determining step in the hydrogenation process from phenanthrene to perhydrophenanthrene, which was due to the steric hindrance and competitive adsorption of octahydrophenanthrene. In this work, a series of Ni/NiAlO_x catalysts with a uniform electron-deficient state of Ni derived from the nickel aluminate structure was synthesized to overcome the disadvantage of noble catalyst and the traditional sulfided catalysts in the saturation hydrogenation process of phenanthrene. Results showed that the catalyst calcinated at 650°C possessed more Ni²⁺ (∼98%) occupying octahedral sites and exhibited the highest r_obs (1.53 × 10^-3 mol kg^-1 s^-1) and TOF (14.64 × 10^-3 s^-1

SUBMITTER: Liu DC 

PROVIDER: S-EPMC8531806 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature