文献类型：期刊文献

英文题名：Hydrogenation of Ethyl Acetate to Ethanol over Bimetallic Cu-Zn/SiO2 Catalysts Prepared by Means of Coprecipitation

作者：Zhu, Ying-ming[1];Shi, Xin Wang Li[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2014

卷号：35

期号：1

起止页码：141

外文期刊名：BULLETIN OF THE KOREAN CHEMICAL SOCIETY

收录：;EI(收录号：20140517252057);WOS:【SCI-EXPANDED(收录号:WOS:000330682100023)】；

基金：The publication cost of this paper was supported by the Korean Chemical Society.

语种：英文

外文关键词：Cu-Zn/SiO2; Hydrogenation; Ethyl acetate; Ethanol

摘要：A series of bimetallic Cu-Zn/SiO2 catalysts were prepared via thermal decomposition of the as-synthesized CuZn(OH)(4)(H2SiO3)(2)center dot nH(2)O hydroxides precursors. This highly dispersed Cu-solid base catalyst is extremely effective for hydrogenation of ethyl acetate to ethanol. The reduction and oxidation features of the precursors prepared by coprecipitation method and catalysts were extensively investigated by TGA, XRD, TPR and N-2-adsorption techniques. Catalytic activity by ethyl acetate hydrogenation of reaction temperatures between 120 and 300 degrees C, different catalyst calcination and reduction temperatures, different Cu/Zn loadings have been examined extensively. The relation between the performance for hydrogenation of ethyl acetate and the structure of the Cu-solid base catalysts with Zn loading were discussed. The detected conversion of ethyl acetate reached 81.6% with a 93.8% selectivity of ethanol This investigation of the Cu-Zn/SiO2 catalyst provides a recently proposed pathway for ethyl acetate hydrogenation reaction to produce ethanol over Cu-solid base catalysts.