Inorganic Chemicals Industry >
Effect of structure of copper-based catalyst on adsorption and diffusion of mixed solution of unsaturated aldehydes and fatty alcohol
Received date: 2023-03-28
Online published: 2023-12-14
The development of non chromium catalysts in the process of preparing 2-propylheptanol from aldehyde hydrogenation is the key to achieving the greening of the process.The adsorption and diffusion characteristics of the mixed solution of 2-propylheptenal and 2-propylheptanol for copper silicon,copper chromium,and copper zinc aluminum three different copper-based composite oxides were investigated by adsorption diffusion method.And combined the structural characteristics of three different copper-based composite oxides,it was coupled with the hydrogenation performance of 2-propylheptenal in liquid phase.The results showed that 2-propylheptaneal adsorbed preferentially by copper silicon composite oxides at all concentration ranges,however,for copper-zinc and copper-chromium composite oxides,2-propylheptaneal adsorbed preferentially only while the mass fraction of 2-propylheptenal in the mixed solution was higher than 4.6% and 4.1% respectively.The adsorption selectivity,diffusion coefficient,and hydrogenation performance for 2-propylheptylenal of copper chromium composite oxide were optimal in liquid phase.
LIU Zenghui , SONG Bingjie , CHEN He , SUN Peiyong , CHAI Wenzheng , ZHANG Shenghong , FU Songbao , YAO Zhilong . Effect of structure of copper-based catalyst on adsorption and diffusion of mixed solution of unsaturated aldehydes and fatty alcohol[J]. Inorganic Chemicals Industry, 2023 , 55(12) : 152 -158 . DOI: 10.19964/j.issn.1006-4990.2023-0171
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