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Synthesis of C9-Alcohol through C9-Aldehyde Hydrogenation over Copper Catalysts  

Park, Young-Kwon (Faculty of Environmental Engineering, University of Seoul)
Noh, Sang Gyun (Department of Chemical Engineering, Dongyang University)
Cho, Kyu Sang (School of Machine and Vehicle Design, Dongyang University)
Jeon, Jong-Ki (Department of Chemical Engineering, Kongju National University)
Publication Information
Korean Chemical Engineering Research / v.44, no.4, 2006 , pp. 363-368 More about this Journal
Abstract
This study selected the optimal catalyst for the process of producing $C_9$-alcohol by hydrogenating $C_9$-aldehyde, and carried out an experiment in order to establish the operating condition for maximizing the yield of $C_9$-alcohol. The BET surface area and the specific area of copper were most excellent in $CuO/ZnO/Al_2O_3$ (60:30:10 wt％) catalyst produced using acetate as a precursor of copper and $Na_2CO_3$ as a precipitant, and the catalyst also showed the highest performance in $C_9$-aldehyde hydrogenation. Using a trickle bed reactor loaded with optimized catalyst, we attained 94.1 wt％ yield of $C_9$-alcohol under the condition of $175^{\circ}C$, 800 psi and $WHSV=3hr^{-1}$. According to the result of comparing with other catalysts used in the hydrogenation of aldehyde, the catalyst showed similar performance to that of Ni/kieselghur and higher than that of $Cu-Ni-Cr-Na/Al_2O_3$ and $Ni-Mo/Al_2O_3$. According to the result of examining the stability of the catalyst through a long-term catalysis test, the yield of $C_9$-alcohol decreased slowly after around 72 hours due to the increasing production of high boiling-point byproducts.
Keywords
$C_9$-aldehyde; $C_9$-alcohol; Hydrogenation; Copper Catalyst;
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