高分散Ni_(2)P/γ-Al_(2)O_(3)催化剂的制备及其加氢脱硫性能研究  

Preparation of highly-dispersed Ni_(2)P/γ-Al_(2)O_(3)catalyst and its catalytic performance in hydrodesulfurization

作　　者：王广建[1] 石林 王芳[1] 邴连成[1] 季生福[2] 郭庆杰[1] WANG Guang-jian;SHI Lin;WANG Fang;BING Lian-cheng;JI Sheng-fu;GUO Qing-jie(College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266000,China;College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]青岛科技大学化工学院,山东青岛266000 [2]北京化工大学化学工程学院,北京100029

出　　处：《现代化工》2021年第4期157-161,共5页Modern Chemical Industry

基　　金：山东省重点研发计划(2019GGX103018);山东省自然科学基金联合专项(ZR2018LB027);山东省自然科学基金(ZR2019BB052);化工资源有效利用国家重点实验室开放课题(CRE-2018-C-302);煤炭高效利用与绿色化工国家重点实验室开放课题(2017-K17,2017-K23);青岛科技大学科研启动经费(010022919,010029063)。

摘　　要：分别以商品化和水热法合成的多级孔结构的γ-Al_(2)O_(3)为载体,采用磷源热解法制得负载型Ni_(2)P催化剂。通过XRD、SEM、N2物理吸脱附和CO化学吸附等手段对所制备的载体及催化剂进行表征,考察了不同载体对催化剂常压下噻吩加氢脱硫性能的影响。结果表明,自制的γ-Al_(2)O_(3)具有更高的比表面及发达的微观结构,以其为载体制备的Ni_(2)P催化剂具有更高的分散度及催化脱硫性能。在反应温度为370℃、反应压力为1.01×10^(5) Pa、氢/油体积比为500、空速为3.2 h^(-1)的条件下,HDS转化率达到95.5%。Supported Ni_(2)P catalysts are prepared via phosphorus source pyrolysis method using commercial hierarchical poreγ-Al_(2)O_(3)and self-made hierarchical poreγ-Al_(2)O_(3)by hydrothermal method as carriers,respectively.The as-synthesized catalysts and supports are characterized by N2 adsorption-desorption,XRD,SEM and CO-chemisorption.Influences of different carriers on the catalysts'performance in hydrodesulfurization(HDS)of thiophene under normal pressure are studied.Results show that self-made hierarchicalγ-Al_(2)O_(3)has higher specific surface and well-developed microstructure,and the corresponding catalyst shows higher dispersion and better catalytic desulfurization performance.HDS conversion reaches 95.5%when reaction temperature remains at 370℃,reaction pressure is 1.01×10^(5)Pa,volume ratio of H2/oil is 500,and hourly space velocity is 3.2 h^(-1).

关 键 词：γ-Al_(2)O_(3) 加氢脱硫 Ni_(2)P 高分散度 

分 类 号：TH3[机械工程—机械制造及自动化]