Citation: CHENG Fu-long, GUO He-qin, CUI Jing-lei, HOU Bo, LI De-bao. Guerbet reaction of methanol and ethanol catalyzed by CuMgAlO_x mixed oxides: Effect of M²⁺/Al³⁺ ratio[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(12): 1472-1481. shu

Guerbet reaction of methanol and ethanol catalyzed by CuMgAlO_x mixed oxides: Effect of M²⁺/Al³⁺ ratio

CHENG Fu-long ^1,2 ,
GUO He-qin ^2,, ,
CUI Jing-lei ³ ,
HOU Bo ² ,
LI De-bao ^2,,

1.
Chongqing Three Gorges University, Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservior, Chongqing 404100, China
2.
State Key Laborator of Coal Convercion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
3.
Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China

Corresponding author: GUO He-qin, heqinguo@sxicc.ac.cn LI De-bao, dbli@sxicc.ac.cn
Received Date: 4 May 2018
Revised Date: 14 August 2018

Fund Project: The project was supported by the National Natural Science Foundation of China (21736007, 21303241)the National Natural Science Foundation of China 21736007the National Natural Science Foundation of China 21303241

Figures(11)

A series of hydrotalcite-like derived MgAlO_x (MA) and CuMgAlO_x (CMA) catalysts with various M²⁺/Al³⁺ molar ratios were prepared and evaluated by the aldol condensation reaction of formaldehyde and acetaldehyde and Guerbet reaction of methanol and ethanol, respectively. The acidity and the alkalinity as well as the surface copper species of catalysts were characterized by NH₃/CO₂-TPD, XPS, H₂-TPR and H₂-TPD techniques. The results show that the catalytic performance of Guerbet reaction of methanol and ethanol is related to the surface Cu⁰ species and the number of moderate basic sites. Increasing the specific surface area of Cu⁰ is beneficial to the dehydrogenation of methanol and ethanol to formaldehyde and acetaldehyde. The increase of the amount of moderate basic sites can promote the condensation reaction of formaldehyde and acetaldehyde.
- CuMgAlO_x,
- M²⁺/Al³⁺ ratio,
- methanol and ethanol,
- Guerbet reaction
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沈阳化工大学材料科学与工程学院沈阳 110142

Guerbet reaction of methanol and ethanol catalyzed by CuMgAlOx mixed oxides: Effect of M2+/Al3+ ratio

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通讯作者: 陈斌, bchen63@163.com

Guerbet reaction of methanol and ethanol catalyzed by CuMgAlO_x mixed oxides: Effect of M²⁺/Al³⁺ ratio