In situ DRIFT study of dimethyl ether carbonylation to methyl acetate on H-mordenite
文献类型：期刊论文
| 作者 | Liu, Yong1,2; Zhou, Hui1,2,3; Zhu, Wenliang1,2; Shi, Lei1,2; Liu, Hongchao1,2; Liu, Shiping1,2,3; Ni, Youming1,2; He, Yanli1,2; Xu, Shuliang1,2; Li, Lina1,2,3 |
| 刊名 | JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
 |
| 出版日期 | 2016-06-01 |
| 卷号 | 417页码:1-9 |
| 关键词 | In Situ Drift Dimethyl Ether Methyl Acetate Carbonylation Mordenite |
| ISSN号 | 1381-1169 |
| DOI | 10.1016/j.molcata.2016.02.032 |
| 文献子类 | Article |
| 英文摘要 | In situ diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy was used to study the reaction of dimethyl ether (DME) carbonylation to methyl acetate (MAc). Methoxyl and acetyl groups were observed in situ, confirming the reaction mechanistic proposal. DME adsorption bands on Si-OH, Al-OH and SiOHA1(Bronsted acid sites) groups were identified respectively. The effect of temperature and pressure on acetyl formation and side reactions were systematically studied. It was found that methoxyls formed by DME chemisorbed on Brensted acid sites could be observed above 433 K. High pressure and appropriate temperature interval promoted the formation of acetyls. Side reactions, DME transformed into olefins and then into cokes, were favored at low pressure and high temperature. Carbonylation reactions on catalysts with acid sites only in 8MR side pockets and 12MR main channels of mordenite (samples noted as HMOR-SP and HMOR-MC) were conducted by in situ DRIFT spectroscopy and catalytic testing. Pyridine molecules adsorbed in 12MR main channels resulted in the low utilization of acid sites in 8MR side pockets. The synthesis rate of MAc on HMOR-SP was stable but lower. HMOR-MC presented the lowest MAc synthesis rate with the production of coke, which was also observed in DRIFT spectra. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | SELECTIVE CATALYTIC-REDUCTION ; ACIDIC ZEOLITES ; ETHANOL ; METHANOL ; ADSORPTION ; MECHANISM ; SYNGAS ; NH3 ; NOX ; CO |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000374626200001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170776]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Liu, Zhongmin |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab Methanol Olefins, POB 110, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yong,Zhou, Hui,Zhu, Wenliang,et al. In situ DRIFT study of dimethyl ether carbonylation to methyl acetate on H-mordenite[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2016,417:1-9. |
| APA | Liu, Yong.,Zhou, Hui.,Zhu, Wenliang.,Shi, Lei.,Liu, Hongchao.,...&Liu, Zhongmin.(2016).In situ DRIFT study of dimethyl ether carbonylation to methyl acetate on H-mordenite.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,417,1-9. |
| MLA | Liu, Yong,et al."In situ DRIFT study of dimethyl ether carbonylation to methyl acetate on H-mordenite".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 417(2016):1-9. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。