Citation: WEI Ling, ZENG Chun-yang, XIE Hong-juan, WU Ying-quan. Study on the formation of 2-pentanone from ethanol over K-CuZrO₂ catalysts[J]. Journal of Fuel Chemistry and Technology, ;2021, 49(1): 80-87. doi: 10.1016/S1872-5813(21)60008-7 shu

Study on the formation of 2-pentanone from ethanol over K-CuZrO₂ catalysts

1.
Taiyuan University, Department of Environmental Engineering, Taiyuan 030032, China
2.
China Petroleum Chemical Industry Federation, Beijing 100723, China
3.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Corresponding author: WU Ying-quan, wuyq@sxicc.ac.cn
Received Date: 2 September 2020
Revised Date: 30 September 2020

Fund Project: The project was supported by Science and Technology Innovation Project of Shanxi Colleges and Universities (2009L1007)

Figures(8)

A series of K-CuZrO₂ catalysts with different Cu contents were prepared. The catalytic performance and reaction mechanism of 2-pentanone from ethanol condensation were investigated. The structure and properties of the catalysts were studied by N₂ sorption, XRD, H₂-TPR, CO₂-TPD, TEM and XPS. The results showed that when the content of Cu was 9%, the conversion of ethanol reached the maximum (99.5%) due to the strong interaction between CuO and ZrO₂ which promoted the reduction of CuO and resulted in the largest specific surface area of Cu on the catalyst surface. The selectivity of 2-pentanone reached the maximum (35.0%) because the strongest basicity related to medium-strength basic sites of the catalyst surface were suitable for the condensation reaction. The formation of 2-pentanone on K-CuZrO₂ catalyst was speculated on the basis of the analysis of intermediates: ethanol was dehydrogenated to form acetaldehyde. Then, the acetaldehyde was condensed and decomposed to acetone followed by reaction with acetaldehyde to form 2-pentanone.
- copper content,
- K-CuZrO₂ catalyst,
- ethanol,
- 2-pentanone
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沈阳化工大学材料科学与工程学院沈阳 110142

Study on the formation of 2-pentanone from ethanol over K-CuZrO2 catalysts

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通讯作者: 陈斌, bchen63@163.com

Study on the formation of 2-pentanone from ethanol over K-CuZrO₂ catalysts