Citation: LI Chao, CHEN Yong-en, HUANG Wei, GAO Zhi-hua. Effect of the source of Cu and Zn on the ethanol synthesis from syngas over CuZnAl catalyst[J]. Journal of Fuel Chemistry and Technology, ;2015, 43(7): 852-856. shu

Effect of the source of Cu and Zn on the ethanol synthesis from syngas over CuZnAl catalyst

1.
Key Laboratory of Coal Science and Technology, Ministry of Education of China and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China

Corresponding author: GAO Zhi-hua,
Received Date: 29 December 2014
Available Online: 9 March 2015
Fund Project: 国家自然科学基金重点项目(21336006) (21336006) 国家自然科学基金面上项目(21176176) (21176176) 山西省自然科学基金(2012011046-1)。 (2012011046-1)

CuZnAl catalysts were prepared using different sources of copper and zinc through complete liquid-phase technology. The catalytic performances for the ethanol synthesis from syngas were investigated in a slurry phase reactor. The catalysts were characterized by XRD, H₂-TPR, NH₃-TPD-MS and BET technology. The results suggest that replacing copper nitrate with copper acetate would restrain the reduction of Cu₂O in the heat treatment and raise the surface areas of the catalysts. It also provides suitable acid sites and pore sizes for higher ethanol selectivity. The selectivity of total alcohols reaches 45.6% and the ethanol selectivity accounts for 28.7%.
- CuZnAl catalyst,
- copper acetate,
- zinc acetate,
- syngas,
- ethanol
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