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Promoting dimethyl ether carbonylation over hot-water pretreated H-mordenite

文献类型：期刊论文

作者Zhao, Na4,5; Cheng, Qingpeng4,5; Lyu, Shuaishuai4,5; Guo, Lihong1,4,5; Tian, Ye4,5; Ding, Tong4,5; Xu, Jun3; Ma, Xinbin2,5; Li, Xingang4,5
刊名CATALYSIS TODAY
出版日期2020
卷号339页码:86-92
ISSN号0920-5861
关键词H-mordenite Hot-water pretreatment Dimethyl ether Carbonylation
DOI10.1016/j.cattod.2019.01.013
英文摘要Herein, we report the effect of the hot-water pretreatment on the catalytic activity of the H-mordenite (H-MOR) zeolite for DME carbonylation. The structure and acidity of the H-MOR catalysts pretreated by hot water were systematically characterized by XRD, nitrogen adsorption, SEM, H2O-TPD, NH3-TPD, H-1 NMR and NH3-DRIFTS technologies. With the increase of the duration of the hot-water pretreatment, the catalytic activity shows a volcano-type variation. The H-MOR catalyst pretreated by hot water for 10 min at 573 K displays the highest catalytic activity among all of the catalysts. The appropriate duration of the hot-water pretreatment can generate new medium strong and strong Bronsted acid sites, which changes the microenvironment in the pores of H-MOR. Additionally, the newly generated Bronsted acid sites will accelerate the first step of DME carbonylation, that is, DME reacts with the Bronsted acid sites of the zeolite forming surface methoxy groups and methanol, improving the catalytic activity of the catalysts. However, too long duration of the hot-water pretreatment will remain water molecules in H-MOR, which inhibits DME carbonylation.
WOS关键词METHYL ACETATE ; CELLULOSE CONVERSION ; CU/SIO2 CATALYSTS ; ETHANOL SYNTHESIS ; BRONSTED-ACID ; ZEOLITE ; SYNGAS ; METHANOL ; SITES ; STEAM
资助项目National Natural Science Foundation of China[21476159] ; National Natural Science Foundation of China[21676182] ; 973 program[2014CB932403] ; Program of Introducing Talents of Disciplines to China Universities[B06006]
WOS研究方向Chemistry ; Engineering
语种英语
出版者ELSEVIER
WOS记录号WOS:000489689400011
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 program ; 973 program ; Program of Introducing Talents of Disciplines to China Universities ; Program of Introducing Talents of Disciplines to China Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 program ; 973 program ; Program of Introducing Talents of Disciplines to China Universities ; Program of Introducing Talents of Disciplines to China Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 program ; 973 program ; Program of Introducing Talents of Disciplines to China Universities ; Program of Introducing Talents of Disciplines to China Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 program ; 973 program ; Program of Introducing Talents of Disciplines to China Universities ; Program of Introducing Talents of Disciplines to China Universities
源URL[http://ir.wipm.ac.cn/handle/112942/21391]  
专题中国科学院武汉物理与数学研究所
通讯作者Li, Xingang
作者单位1.Henan Univ Technol, Sch Chem & Chem Engn, Zhengzhou 450001, Henan, Peoples R China
2.Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China
3.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Key Lab Magnet Resonance Biol Syst,Wuhan Inst Phy, Wuhan 430071, Hubei, Peoples R China
4.Tianjin Key Lab Appl Catalysis Sci & Technol, Tianjin 300072, Peoples R China
5.Tianjin Univ, Sch Chem Engn & Technol, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Na,Cheng, Qingpeng,Lyu, Shuaishuai,et al. Promoting dimethyl ether carbonylation over hot-water pretreated H-mordenite[J]. CATALYSIS TODAY,2020,339:86-92.
APA Zhao, Na.,Cheng, Qingpeng.,Lyu, Shuaishuai.,Guo, Lihong.,Tian, Ye.,...&Li, Xingang.(2020).Promoting dimethyl ether carbonylation over hot-water pretreated H-mordenite.CATALYSIS TODAY,339,86-92.
MLA Zhao, Na,et al."Promoting dimethyl ether carbonylation over hot-water pretreated H-mordenite".CATALYSIS TODAY 339(2020):86-92.

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来源：武汉物理与数学研究所

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