Towards Stable CuZnAl Slurry Catalysts for the Synthesis of Ethanol from Syngas
- Autores: Weibing Dong 1, Gao Z.1, Zhang Q.1, Huang W.1
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Afiliações:
- Key Laboratory of Coal Science and Technology, Ministry of Education of China and Shanxi Province, Taiyuan University of Technology
- Edição: Volume 92, Nº 7 (2018)
- Páginas: 1254-1260
- Seção: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/170044
- DOI: https://doi.org/10.1134/S0036024418070312
- ID: 170044
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Resumo
A stable CuZnAl slurry catalyst for the synthesis of ethanol from syngas has been developed by adjusting the heat treatment conditions of the complete liquid-phase method. The activity evaluation results showed that the CuZnAl catalyst, when heat-treated under a high pressure and temperature, was a stable catalyst for the synthesis of ethanol. The selectivity of ethanol using the CuZnAl slurry catalyst, which was heat-treated at 553 K under 4.0 MPa, increased continuously with time and was stable at approximately 26.00% after 144 h. The characterization results indicated that the CuZnAl slurry catalyst heat-treated under high pressure conditions could facilitate the formation of a more perfect structure with a larger specific surface area. The prepared catalyst contained a balance of strong and weak acid sites, an appropriate form of Cu2O and a high Cu/Zn atomic ratio at the catalyst surface, providing its stability in ethanol synthesis from syngas.
Sobre autores
Weibing Dong
Key Laboratory of Coal Science and Technology, Ministry of Education of China and Shanxi Province,Taiyuan University of Technology
Autor responsável pela correspondência
Email: dwb0351@outlook.com
República Popular da China, Taiyuan, Shanxi, 030024
Zhihua Gao
Key Laboratory of Coal Science and Technology, Ministry of Education of China and Shanxi Province,Taiyuan University of Technology
Autor responsável pela correspondência
Email: gaozhihua@tyut.edu.cn
República Popular da China, Taiyuan, Shanxi, 030024
Qian Zhang
Key Laboratory of Coal Science and Technology, Ministry of Education of China and Shanxi Province,Taiyuan University of Technology
Email: huangwei@tyut.edu.cn
República Popular da China, Taiyuan, Shanxi, 030024
Wei Huang
Key Laboratory of Coal Science and Technology, Ministry of Education of China and Shanxi Province,Taiyuan University of Technology
Autor responsável pela correspondência
Email: huangwei@tyut.edu.cn
República Popular da China, Taiyuan, Shanxi, 030024