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MoNi/γ-Al2O3催化剂的制备及其催化乙酸临氢酯化反应性能
引用本文:徐 莹,王铁军,马隆龙,张 琦,吴创之.MoNi/γ-Al2O3催化剂的制备及其催化乙酸临氢酯化反应性能[J].无机化学学报,2009,25(5):805-811.
作者姓名:徐 莹  王铁军  马隆龙  张 琦  吴创之
作者单位:1. 中国科学院广州能源研究所,广州,510640;中国科学院研究生院,北京,100039
2. 中国科学院广州能源研究所,广州,510640;中国科学院可再生能源与天然气水合物重点实验室,广州,510640
基金项目:国家自然科学基金,国家自然科学基金重点项目 
摘    要:采用等体积浸渍的方法制备了MoNi/γAl2O3系列催化剂,利用XRD和TPR手段表征了其结构随Mo助剂的添加量和催化剂还原温度的变化,并考察了在3 MPa的氢气压力下,乙酸催化酯化的反应性能.结果表明,添加助剂Mo有利于Ni均匀地分散,减弱了Ni与Al之间的相互作用,抑制了NiAl2O4尖晶石结构的形成,降低了催化剂的还原温度.催化剂经600℃还原后,NiO被还原为Ni0.当加入经过600℃还原的催化剂MoNi/γ-Al2O3后,乙酸临氢反应转化率显著提高,可达33.2%.在3 MPa的氢气压力下,乙酸反应的途径可能为一部分乙酸被还原得到乙醇,乙醇与未还原的乙酸发生酯化,以乙酸乙酯和水为反应产物.

关 键 词:MoNi/γ-Al2O3催化剂  改质  催化转化  生物油

MoNi/γ-Al2O3 Catalyst:Preparation and Catalytic Activity for Acetic Acid Hydrotreating
XU Ying,WANG Tie-Jun,MA Long-Long,ZHANG Qi and WU Chuang-Zhi.MoNi/γ-Al2O3 Catalyst:Preparation and Catalytic Activity for Acetic Acid Hydrotreating[J].Chinese Journal of Inorganic Chemistry,2009,25(5):805-811.
Authors:XU Ying  WANG Tie-Jun  MA Long-Long  ZHANG Qi and WU Chuang-Zhi
Institution:Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640; Graduate School of the Chinese Academy of Sciences, Guangzhou 510640,Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640; The Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Beijing 100039,Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640; The Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Beijing 100039,Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640; The Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Beijing 100039 and Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640; The Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Beijing 100039
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