The carrier of hierarchical porous TiO ₂⁃Al ₂O ₃ and the catalyst Ni ₂P/TiO ₂⁃Al ₂O ₃ were prepared. The catalytic performance of the Ni ₂P/TiO ₂⁃Al ₂O ₃ was compared with the N _i2P loaded on the mesoporous Al ₂O ₃  and γ⁃Al ₂O ₃. The influence of the technological conditions, including reaction temperature, hydrogen oil ratio, mass space velocity and reaction pressure, were investigated by Orthogonal test and single factor exploration, respectively. The optimized technological conditions were obtained. The results showed that the hydrogenation catalyst Ni ₂P/TiO ₂⁃Al ₂O ₃ possessed more excellent de⁃aromatic rate and the selectivity of decahydronaphthalene compared with the ordinary catalyst of Ni ₂P/γ⁃Al ₂O ₃ and Ni ₂P/Al ₂O ₃. For the de⁃aromatic rate and the selectivity of decahydronaphthalene, the reaction pressure and temperature had more significantly affection to the hydrogen / oil ratio and the mass space velocity. According to the results of orthogonal test, the optimum reaction conditions of the hierarchical porous Ni ₂P/TiO ₂⁃Al ₂O ₃ catalyst in the hydrodeaphthalene reaction were investigated. The reaction temperature was 300 ℃, the reaction pressure was 4 MPa, the hydrogen / oil ratio was 500, and the mass space velocity was 1 h-1. The removal rate of naphthalene and the selectivity of decahydronaphthalene reached the highest, which were 99.2% and 72.0%, respectively.

A novel supported palladium catalyst was prepared through solgel method using silica bead grafted with double(3(triethoxy silicon) propyl)disulfide as the supporting matrix， following excessive impregnation. And the catalytic activity，conversion and selectivity were investigated. FTIR, UVVis DRS，TG and BET had been used to characterize the structure of catalyst. The results indicated that catalysts had excellent catalytic performance for hydrogenation of acetylene to prepar vinyl. When the palladium capacity was 0.6% and the reaction temperature was 140 ℃, the conversion rate reached 100% and the selectivity was over 90%. FTIR results showed that the synthesis of SiO2 carrier contained ligand. BET results showed that after adding ligand, specific surface area of catalyst increased obviously. TG results showed that decomposition temperature of the ligand modified supported Pd catalyst was 378 ℃, so the reaction temperature was lower than this. UVVis DRS results showed that ligands interacted with Pd produced.