中文摘要：

采用NaOH溶液对商业Hβ分子筛进行碱处理,制备了多级孔结构Hβ分子筛。以多级孔Hβ分子筛与Al_2O_3为复合载体,采用等体积浸渍法制备了多级孔NiWP/Hβ-Al_2O_3系列催化剂,利用XRD、BET、TEM等表征手段对分子筛以及催化剂的物相结构进行了表征。以催化裂化柴油为原料,在固定床反应器上对催化剂的加氢脱芳性能进行了评价。结果表明,制备的NiWP/Hβ-Al_2O_3催化剂具有较高的加氢脱芳活性,在反应温度为360℃、反应压力8.0 MPa、氢油体积比为600∶1、体积空速1.0h^-1的条件下,产品的十六烷值由7.21提高到46.96。

英文摘要：

The hierarchically mesoporous Hβzeolite was synthesized by alkali treatment to commercial Hβzeolite in NaOH solution.The composite carrier was prepared by mixing the hierarchical Hβzeolite and Al_2O_3.The hierarchical NiWP/Hβ-Al_2O_3 catalysts were prepared by incipient wetness impregnation method,and characterized by means of XRD,BET and TEM.The hydrodearomatization of the prepared NiWP/Hβ-Al_2O_3 catalyst was evaluated in a miniature fixed bed reactor with fluid catalytic cracking diesel as raw material.The results suggested that the prepared NiWP/Hβ-Al2O3 catalyst has an excellent hydrodearomatization activity,and under the condition of the reaction temperature 360 ℃,reaction pressure 8.0 MPa,hydrogen to oil volumetric ratio 800 and liquid hourly space velocity 1.0h~（-1）,the cetane number was increased from 7.21 of feed to 46.96 of product.