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A series of B-Ni_2P/SBA-15,cord monolithic catalysts were prepared by coating the slurry of the B-Ni_2P/SBA-15 precursors on a pretreated cordierite support,and followed by temperature-programmed reduction in a H_2flow.The samples were characterized by X-ray diffraction(XRD) and N_2 adsorption-desorption technique.The catalytic activities for the hydrodesulfurization(HDS) of dibenzothiophene(DBT) were evaluated.The results showed that Ni_2P phase was present in all B-Ni_2P/SBA-15/cord monolithic catalysts.The specific surface areas(S_(Bet)) of the B-Ni_2P/SBA-15/cord monolithic catalysts was first increased to 167 m~3·g~(-1),and then decreased to 155 m~2·g~(-1) with the increase of boron contents.The catalytic activity also showed the similar trend with the increase of boron contents.The 1.75%(by mass) B-Ni2P/SBA-15/cord monolithic catalysts exhibited the highest DBT conversion of 98.4%at 380 ℃.The cordierite-based monolithic catalysts showed better low temperature sensitivity for HDS of DBT in comparison with the particle catalysts.Moreover,two HDS routes,direct desulfurization(DDS) and hydrogenation(HYD),proceeded independently over B-Ni2P/SBA-15/cord monolithic catalysts and the main pathway was DDS.
A series of B-Ni_2P / SBA-15, cord monolithic catalysts were prepared by coating the slurry of the B-Ni_2P / SBA-15 precursors on a pretreated cordierite support, and followed by temperature-programmed reduction in a H_2flow.The samples were characterized by X-ray diffraction (XRD) and N_2 adsorption-desorption technique. The catalytic activities for the hydrodesulfurization (HDS) of dibenzothiophene (DBT) were evaluated. results showed that Ni_2P phase was present in all B-Ni_2P / SBA-15 / cord monolithic catalysts was first increased to 167 m ~ 3 · g -1, and then decreased to 155 m / s. The specific surface areas (S_ (Bet)) of the B-Ni_2P / SBA- ~ 2 · g -1 with the increase of boron contents. The catalytic activity also showed the similar trend with the increase of boron contents. 1.75% (by mass) B-Ni2P / SBA-15 / cord monolithic compounds the highest DBT conversion of 98.4% at 380 ° C. The cordierite-based monolithic catalysts showed lower temperature sensitivity for HDS of DBT in comparison with the particle catalysts. Moreover, two HDS routes, direct desulfurization (DDS) and hydrogenation (HYD), proceeded independently over B-Ni2P / SBA- 15 / cord monolithic catalysts and the main pathway was DDS.