One-pot conversion of cellulosic sugars into methyl lactate using hierarchical Sn-MFI zeolite with intracrystalline mesoporosity  

作　　者：Yuying Li Xiumei Liu Kun Zhang Siyuan Zhao Lei Wu Qiang Guo Hong Du Feng Wang 

机构地区：[1]Zhengzhou University,Zhengzhou,Henan 450001,China [2]State Key Laboratory of Catalysis,Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,Liaoning 116023,China

出　　处：《Green Carbon》2024年第4期383-392,共10页绿碳(英文)

基　　金：supported by the National Natural Science Foundation of China[22272166];Department of Science&Technology of Liaoning Province[2023JH2/101800050];Dalian Institute of Chemical Physics[DICP I202116 and DICP I202214].

摘　　要：Cellulosic sugars derived from lignocellulose are the most abundant and inexpensive raw materials used for the production of methyl lactate(MLA).In this study,hierarchical Sn-MFI zeolite with intracrystalline mesoporosity was developed,capable of catalyzing the one-pot conversion of cellulosic sugars into MLA in a CH_(3)OH/H_(2)O mixture.The MLA yield from glucose using the hierarchical Sn-MFI zeolite was almost twice as high as that using the conventional microporous Sn-MFI zeolite.This superior catalytic performance was attributed to the reduced diffusion limitation of glucose within the hierarchical Sn-MFI catalyst,which possessed significant intercrystalline mesoporosity.Additionally,the hierarchical Sn-MFI catalyst was recycled for five reaction runs of the one-pot conversion of glucose without an obvious loss of activity,indicating excellent stability and reusability and broadening the scope of carbohydrates used to obtain MLA.

关 键 词：Cellulosic sugars Methyl lactate Hierarchical Sn-MFI zeolite Lewis acid 

分 类 号：O64[理学—物理化学]