Ru/Co-Al-O负载型催化剂的制备及其加氢脱氧性能研究  

Preparation of Ru/Co-Al-O supported catalysts and its hydrodeoxygenation properties

作　　者：谭亮 苗磊 仵奎 王威燕[1] 杨运泉[1] TAN Liang;MIAO Lei;WU Kui;WANG Wei-yan;YANG Yun-quan(School of Chemical Engineering,Xiangtan University,Xiangtan 411105,China)

机构地区：[1]湘潭大学化工学院,湖南湘潭411105

出　　处：《燃料化学学报》2018年第2期219-224,共6页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(21776236;21676225);湖南省研究生科研创新项目(CX2017B334)资助~~

摘　　要：先采用共沉淀法制备出Co-Al类水滑石,其经煅烧后形成的复合氧化物用作载体制备出一系列Ru/Co-Al-O负载型催化剂,并采用XRD、BET、FT-IR等方法对其结构性能进行表征分析,最后以木质素生物质油的典型含氧化合物对甲基苯酚为模型,测试所制催化剂的加氢脱氧性能。主要研究了载体中Co/Al物质的量比、催化剂还原温度等因素对催化剂加氢脱氧活性的影响,并优化了HDO反应温度。结果表明,当Co/Al物质的量比为3∶1,催化剂还原温度为350℃,反应温度为275℃时,催化剂的加氢脱氧活性最高,催化对甲基苯酚加氢脱氧反应的转化率和脱氧率都达到了100%。Co-Al layered double hydroxides were prepared by co-precipitation method and converted into composite oxides via calcination.The composite oxide were then used to prepare a series of Ru/Co-Al-O supported catalysts.The structures and properties of the catalysts were characterized by XRD,BET and FT-IR.The hydrodeoxygenation(HDO)properties of these catalysts were tested by using 4-methylphenol as a typical oxygen-containing model compound of lignin biomass oil.This study concentrated on the effects of Co/Al molar ratio and the reduction temperature of the catalyst on the hydrodeoxygenation activity of Ru/Co-Al-O and the optimization of HDO temperature.The results showed that when the molar ratio of Co/Al was 3:1,the catalyst reduction temperature was 350℃and the reaction temperature was 275℃,the HDO activity was the highest:both the conversion and deoxygenation degree in the HDO of p-methyl phenol reached up to 100%.

关 键 词：加氢脱氧 Co-Al类水滑石 RU 对甲基苯酚 复合氧化物 

分 类 号：O643.36[理学—物理化学]