An efficient bifunctional Ni-Nb_(2)O_(5)nanocatalysts for the hydrodeoxygenation of anisole  

作　　者：Juan Xu Ping Zhu Islam HEl Azab Ben Bin Xu Zhanhu Guo Ashraf YElnaggar Gaber AMMersal Xiangyi Liu Yunfei Zhi Zhiping Lin Hassan Algadi Shaoyun Shan 

机构地区：[1]Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming 650500,China [2]College of Chemical Engineering,Southwest Forestry University,Kunming 650224,China [3]Yunnan Province Special Equipment Safety Inspection and Research Institute,Kunming 650228,China [4]Department of Food Science and Nutrition,College of Science,Taif University,Taif 21944,Saudi Arabia [5]Department of Mechanical and Construction Engineering,Faculty of Engineering and Environment,Northumbria University,Newcastle upon Tyne NE18ST,UK [6]Integrated Composites Lab(ICL),Department of Chemical&Biomolecular Engineering,University of Tennessee,Knoxville,TN 37996,USA [7]Department of Chemistry,College of Science,Taif University,Taif 21944,Saudi Arabia [8]Taizhou University,Taizhou 31800,China [9]Department of Electrical Engineering,Faculty of Engineering,Najran University,Najran 11001,Saudi Arabia

出　　处：《Chinese Journal of Chemical Engineering》2022年第9期187-197,共11页中国化学工程学报（英文版）

基　　金：Major Science and Technology Project of Yunnan Province(202102AE090042);National Natural Science Foundation of China(21766016);the Science and Technology Talent and Platform Program of Yunnan Provincial Science and Technology Department(202005AF150037);the financial support of Taif University Researchers Supporting Project(TURSP-2020/27),Taif University,Taif,Saudi Arabia。

摘　　要：The Ni-Nb_(2)O_(5)nanocatalysts have been prepared by the solgel method,and the catalytic hydrodeoxygenation(HDO)performance of anisole as model compound is studied.The results show that Nb exists as amorphous Nb_(2)O_(5)species,which can promote Ni dispersion.The addition of Nb_(2)O_(5)increases the acidity of the catalyst.However,when the content of niobium is high,there is an inactive Nb-Ni-O mixed phase.The size and morphology of Ni grains in catalysts are different due to the difference of Nb/Ni molar ratio.The Ni_(0.9)Nb_(0.1)sample has the largest surface area of 170.8 m^(2)·g^(-1)among the catalysts prepared in different Nb/Ni molar ratios,which is mainly composed of spherical nanoparticles and crack pores.The HDO of anisole follows the reaction route of the hydrogenation HYD route.The Ni_(0.9)Nb_(0.1)catalyst displayed a higher HDO performance for anisole than Ni catalyst.The selectivity to cyclohexane over the Ni_(0.9)Nb_(0.1)sample is about 10 times that of Ni catalyst at 220℃and 3 MPa H_(2).The selectivity of cyclohexane is increased with the increase of reaction temperature.The anisole is almost completely transformed into cyclohexane at 240℃,3 MPa H_(2)and 4 h.

关 键 词：Hydrodeoxygenation(HDO) Catalysts Ni-Nb_(2)O_(5) Solgel method ANISOLE 

分 类 号：TQ231.14[化学工程—有机化工] TQ426