重整重芳烃选择加氢Ni-M/Al2O3催化剂性能  

Ni-M/Al_2O_3 Catalyst Performance for Selective Hydrogenation of Heavy Reforming Aromatics

作　　者：任杰[1] 唐之勤[1] 郭友娣[1] 王德举[1] 

机构地区：[1]中国石油化工股份有限公司上海石油化工研究院,绿色化工与工业催化国家重点实验室,上海201208

出　　处：《化学反应工程与工艺》2016年第3期211-216,251,共7页Chemical Reaction Engineering and Technology

摘　　要：为提高镍基催化剂对萘系化合物的加氢活性和单环芳烃的收率,本研究以Al_2O_3为载体采用浸渍法制备了不同金属助剂修饰的系列Ni-M/Al_2O_3加氢催化剂,对催化剂的物性结构和形貌进行了表征,并考察了其在重整重芳烃中萘系化合物的加氢反应性能。结果表明,含Cu助剂的催化剂具有较佳的织构性能,金属活性组分高度分散,在C_(10)^+重芳烃加氢中具有良好的反应选择性和活性。在反应温度为140℃,压力为1.5 MPa,氢油体积比为300,新鲜油体积空速为1.0 h^(-1)的条件下,萘的转化率和四氢萘的选择性分别达到98%和99%,反应1 000 h稳定性良好。In order to improve the hydrogenation activity of the nickel-based Ni/Al_2O_3 catalysts for naphthalene and the yield of monocylic aromatic,a series of Ni-M/Al_2O_3 catalysts with different metal additives were prepared by the impregnated method.The physical properties of these catalysts were characterized and their selective hydrogenation performance of heavy reforming aromatics was also investigated.The results showed that the catalyst contained Cu had the best texture structure with excellent metal dispersion.The catalyst had better naphthalene conversion and tetralin selectivity in the hydrogenation of heavy reforming aromatics.The conversion of naphthalene and the selectivity of tetralin reached up to98%and 99%,respectively under the reaction conditions at the temperature of 140 ℃,reaction pressure of1.5 MPa,H_2/oil volume ratio of 300 and liquid hourly space velocity(LHSV) of 1.0 h^(-1).The catalyst remained stable for 1 000 hours at this optimum reaction conditions.

关 键 词：重芳烃 萘 四氢萘 加氢 

分 类 号：O643.38[理学—物理化学]