Promotional effect of Mn doping on Ru/layered MCM-49 catalysts for the conversion of Levulinic acid to γ-Valerolactone  

作　　者：Wenlin Li Feng Li Xin Ning Kaixi Deng Junwen Chen Jiajun Zheng Ruifeng Li 

机构地区：[1]College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan,Shanxi 030024,China [2]Chemistry Department,State University of New York,Stony Brook,NewYork 11794,USA [3]Research Institute of Petroleum Processing,Sinopec,Beijing 100083,China

出　　处：《Carbon Resources Conversion》2022年第3期185-192,共8页碳资源转化（英文）

基　　金：Financial support from the State Key Laboratory of Catalytic Materials and Reaction Engineering(RIPP,SINOPEC,No.18-ZC0607-0007)is gratefully acknowledged.

摘　　要：Selective hydrogenation of Levulinic acid(LA)toγ-Valerolactone(GVL)is an important reaction to produce high value-added chemicals and fuels but remains a big challenge.Herein we reported a Ru/zeolite catalyst with Mn promotion,which exhibited excellent catalytic performance(yield:98%)towards LA to GVL.The intrinsic activity(TOF)also increased obviously with the Mn addition.The particle size of Ru gradually decreased with the increase of Mn loading and a strong interaction between Ru and support was observed for the Ru-Mn/MCM-49 catalyst.The addition of Mn not only offered a good dispersion of Ru species on MCM-49,but also increased the L/B ratio of the catalyst,thereby contributing to the high GVL selectivity.High dispersed Ru sites were the intrinsic active sites of the catalyst verified by the in-situ experimental studies.The dissociation of the reactants was significantly enhanced,resulting in higher catalytic activity.

关 键 词：Levulinic acid γ-Valerolactone Zeolites Ru-catalyst Mn promotion 

分 类 号：O64[理学—物理化学]