A new Pd/Al2O3 catalyst for fixed-bed anthraquinone hydrogenation was prepared by impregna-tion on a self-made 3.5 mm×3.0 mm spherical Al2O3 support.The Pd/Al2O3 catalyst exhibited a larger particle size,larger pore diameter,and thinner layer of the active component.The performance of catalyst in anthraquinone hydrogenation was studied in laboratory and pilot test evaluation devices.The results showed that the catalyst exhibited high activity,selectivity and stability.Moreover,the pressure drop was small for the reaction unit.It indicated that the Pd/Al2O3 catalyst had a good prospects if industrial appli-cation.
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