Si-Modified Cs/Al2O3 for Aldol Condensation of Methyl Acetate with Formaldehyde to Methyl Acrylate by Chemical Liquid Deposition
文献类型：期刊论文
| 作者 | Wu, Zhenyu2; Sun, Taolue1,3; Li, Zengxi2,3,4; Li, Chunshan2,3 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2022-12-07 |
| 卷号 | 61期号:48页码:17467-17478 |
| ISSN号 | 0888-5885 |
| DOI | 10.1021/acs.iecr.2c03415 |
| 英文摘要 | SiO2-modified gamma-Al2O3 by chemical liquid deposition (CLD) was developed as a catalyst support for use in the aldol condensation of methyl acetate with formaldehyde to produce methyl acrylate. Cs/Al2O3 and Cs/Si-Al2O3 catalysts synthesized by incipient-wetness impregnation were characterized, and catalytic performance was evaluated. A correlation between structural features and acid-base properties has been established, and the effect of SiO2 deposition was investigated. The amount of strong acid sites was reduced, and the Bri nsted acid sites were introduced onto the surface of Al2O3 with the deposition of SiO2. Moreover, interaction of Cs with the Bri nsted acid sites generates the surface Si-O-Cs species which served to enhance selectivity to methyl acrylate. Conversion of methyl acetate was increased due to the formation of new basic sites following Cs incorporation. An excess of SiO2 and Cs hampered decomposition of the cesium nitrate, resulting in strong acid site formation and lower product yield. A 10Cs/1.2Si-Al2O3 composition has been established as optimal with a 4.8 times higher product yield in comparison with 10Cs/Al2O3. Lower activity in the case of the 10Cs/1.2Si-Al2O3 catalyst can be associated with carbon deposition during the reaction; activity can be regenerated after heat treatment at 400 degrees C. |
| WOS关键词 | AMORPHOUS ALUMINOSILICATES ; CHAIN ALKYLATION ; GAMMA-ALUMINA ; CESIUM OXIDE ; CATALYSTS ; METHANOL ; SURFACE ; SITES ; ACID ; SIOX/AL2O3 |
| 资助项目 | National Natural Science Fund for Distinguished Young Scholars[22178338] ; National Natural Science Foundation of China[IAGM-2019-A14] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[20374002D] ; Key R&D Plans of Hebei Province[2021018] ; Joint Fund of the Yulin University ; Dalian National Laboratory for Clean Energy ; [22025803] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000894198400001 |
| 资助机构 | National Natural Science Fund for Distinguished Young Scholars ; National Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key R&D Plans of Hebei Province ; Joint Fund of the Yulin University ; Dalian National Laboratory for Clean Energy |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56059]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Zengxi; Li, Chunshan |
| 作者单位 | 1.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn,Key Lab Multiphase Compl, Beijing 100190, Peoples R China 4.Binzhou Inst Technol, Weiqiao UCAS Sci & Technol Pk, Binzhou 256606, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Zhenyu,Sun, Taolue,Li, Zengxi,et al. Si-Modified Cs/Al2O3 for Aldol Condensation of Methyl Acetate with Formaldehyde to Methyl Acrylate by Chemical Liquid Deposition[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2022,61(48):17467-17478. |
| APA | Wu, Zhenyu,Sun, Taolue,Li, Zengxi,&Li, Chunshan.(2022).Si-Modified Cs/Al2O3 for Aldol Condensation of Methyl Acetate with Formaldehyde to Methyl Acrylate by Chemical Liquid Deposition.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,61(48),17467-17478. |
| MLA | Wu, Zhenyu,et al."Si-Modified Cs/Al2O3 for Aldol Condensation of Methyl Acetate with Formaldehyde to Methyl Acrylate by Chemical Liquid Deposition".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 61.48(2022):17467-17478. |
入库方式： OAI收割
来源：过程工程研究所
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