n(H_2O)∶n(Al)对Ni-W催化剂低温煤焦油加氢性能的影响  

Effects of n(H_2O)∶n(Al)of Ni-W Catalyst on Catalytic Hydrogenation Properties of Low Temperature Coal Tar

作　　者：李海涛[1] 闫飞飞[1] 黄伟[1] 

机构地区：[1]太原理工大学煤科学与技术教育部和山西省重点实验室,太原硕士生030024

出　　处：《煤炭转化》2017年第5期25-30,68,共7页Coal Conversion

基　　金：国家自然科学基金重点资助项目(21336006)

摘　　要：采用完全液相法制备以TiO_2-AlOOH为复合载体,Ni和W为活性组分的浆状加氢催化剂,考察n(H_2O)∶n(Al)对Ni-W催化剂结构与催化性能的影响,并利用XRD,BET,NH_3-TPD等手段对催化剂进行表征.采用GC-MS,TG和元素分析对原料及产物的馏分分布及组成进行分析,结果表明:n(H_2O)∶n(Al)为75时制备的Ni-W催化剂,产物中轻组分含量最高,加氢脱硫(HDS)活性及产物油的n(H)∶n(C)最高,对煤焦油加氢处理具有较优的加氢效果.Slurry hydrogenation catalyst with TiO_2-AlOOH as the composite carrier and Ni and W as active components were prepared by a complete liquid phase method.The effect of n（H_2O）∶n（Al）on the structure and catalytic properties of Ni-W catalysts were investigated and the catalysts were characterized by XRD,BET,NH_3-TPD and so on.The fraction distribution and composition of raw materials and products were analyzed by GC-MS,TG and ultimate analylzer,the results show that the content of light component,the hydrodesulfurization（HDS）activity and the n（H）∶n（C）in the products are the highest when n（H_2O）∶n（Al）is 75 in the catalysts.It indicates that Ni-W catalyst with n（H_2O）∶n（Al）75 has better hydrogenation effect on coal tar hydrotreating than that of the other value of n（H_2O）∶n（Al）.

关 键 词：加氢 馏分 n(H2O)∶n(Al) Ni-W浆态床催化剂 低温煤焦油 

分 类 号：TQ523.6[化学工程—煤化学工程] O643.32[理学—物理化学]