Acrolein production from crude glycerol in sub- and super-critical water

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作者：
Department of Biosystems Engineering and Soil Science, University of Tennessee, 2506 E. J. Chapman Drive, Knoxville, TN 37996-4514, United States [1 ]
机构：
[1] Cheng, Leming
[2] Liu, Lu
[3] Ye, X. Philip
来源：
Ye, X.P. (xye2@utk.edu) | 1600年 / Springer Verlag卷 / 90期
关键词：
To better understand the effects of water properties on the reaction characteristics of acrolein production from glycerol; dehydration of refined glycerol and crude glycerol was comparatively conducted in both sub- and super-critical water states; and the effect of changing water properties was studied to optimize the reaction conditions. The effects of reaction temperature; pressure; residence time; water/glycerol ratio; and catalyst concentration on the yields and distribution of chemical products were also examined. Acrolein yield >80 mol% from both refined glycerol and crude glycerol can be achieved by controlling water properties in the sub-critical water state with the addition of sulfuric acid as a homogeneous catalyst and the formation of undesired acetaldehyde and propionaldehyde can be greatly restrained. These results provide valuable information for the production of value-added chemicals from crude glycerol. © 2012 AOCS;
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