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Study on using cellulose derivatives as pore directing agent for preparation of hierarchical ZSM-5 zeolite catalyst
Advanced Powder Technology ( IF 5.2 ) Pub Date : 2021-09-14 , DOI: 10.1016/j.apt.2021.09.003
Phan Huy Hoang 1 , Nguyen Minh Dat 1
Affiliation  

Cellulose derivatives such as hydroxyethylmethylcellulose (HEMC), and hydroxypropylmethylcellulose (HPMC), which are originated from biomass, were used as mesoporous directing agent for the synthesis of hierarchical ZSM-5 zeolite. Hierarchical ZSM-5 zeolites with outstanding mesoporosity and high hierarchy factors were achieved by hydrothermal method in the presence of bio-mesoporogen. The as-synthesized hierarchical ZSM-5 zeolites were characterized by X-ray diffraction (XRD), nitrogen adsorption–desorption (BET), scanning electron microscope (SEM) to determine the structure of samples. The influences of different mesoporogens with different dosage in the synthetic process on the physicochemical and catalytic properties of hierarchical ZSM-5 zeolite were investigated. Possession of the high mesopores, high surface areas and abundant accessible acid sites, the hierarchical zeolites exhibited excellent catalytic performance in the alkylation reaction of benzene and benzyl alcohol.



中文翻译:

以纤维素衍生物为导孔剂制备多级ZSM-5沸石催化剂的研究

来源于生物质的羟乙基甲基纤维素(HEMC)和羟丙基甲基纤维素(HPMC)等纤维素衍生物被用作合成ZSM-5分子筛的介孔导向剂。在生物介孔原的存在下,通过水热法获得了具有优异介孔率和高层级系数的层级 ZSM-5 沸石。通过 X 射线衍射 (XRD)、氮吸附-解吸 (BET)、扫描电子显微镜 (SEM) 对合成的分级 ZSM-5 沸石进行表征,以确定样品的结构。研究了合成过程中不同介孔剂用量对ZSM-5分级沸石理化和催化性能的影响。拥有高中孔,

更新日期:2021-10-01
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