Promoting dimethyl ether carbonylation over hot-water pretreated H-mordenite | |
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 |
2020 | |
卷号 | 339页码:86-92 |
关键词 | H-mordenite Hot-water pretreatment Dimethyl ether Carbonylation |
ISSN号 | 0920-5861 |
DOI | 10.1016/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. |
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关键词 | METHYL ACETATE ; CELLULOSE CONVERSION ; CU/SIO2 CATALYSTS ; ETHANOL SYNTHESIS ; BRONSTED-ACID ; ZEOLITE ; SYNGAS ; METHANOL ; SITES ; STEAM |
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 |
内容类型 | 期刊论文 |
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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