焙烧温度对氧化铝-活性炭复合载体性能的影响  

Effects of calcination temperatures on the properties of alumina-activated carbon supports

作　　者：刘芳[1] 王筠[1] 李全良[1] 王小光[1] 

机构地区：[1]周口师范学院,河南周口466000

出　　处：《工业催化》2016年第9期29-32,共4页Industrial Catalysis

基　　金：周口师范学院博士科研启动基金(zksybs201107)资助项目

摘　　要：采用混捏法制备氧化铝-活性炭(AAC,质量比为4∶1)复合载体,考察焙烧温度对复合载体性能的影响,采用FT-IR、XRD、颗粒强度测定仪以及N2吸附等表征复合载体。结果表明,焙烧与否对载体的比表面积、径向抗压碎力及表面酸度等均有一定影响,焙烧温度不同,对复合载体表面物相的影响程度不同。随着焙烧温度升高,浸渍法制备的Ni Mo/AAC催化剂对二苯并噻吩的加氢脱硫活性先降低后升高。The alumina-activated carbon （ AAC, mass ratio 4 ： 1 ） composate supports were prepared by co-moulding method. The effects of calcination temperatures on the properties of AAC composite supports were investigated. The as-prepared composite supports were characterized by infrared spectrum, X-ray diffraction, compressive strength tester and N2 adsorption. The results showed that calcination had certain effects on the specific surface area,the mechanical strength and the surface acidity ;the calcination temperature had different influence on the surface property of the supports. With increase of support calcination temperatures, the activity of NiMo/AAC catalysts, which was prepared by impregnation method, for dibenzothiophene （DBT） hydrodesulfurization firstly

关 键 词：催化剂工程 氧化铝-活性炭复合载体 焙烧温度 加氢脱硫 

分 类 号：TQ426.6[化学工程] TE624.93[石油与天然气工程—油气加工工程]