Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 18, Issue 5, Pages 1730-1735Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2012.03.017
Keywords
Dimethyl carbonate; Methanol; Urea; ZnO-CeO2-MO; Basicity
Funding
- S-Oil Corporation
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A series of ZnO(0.64)-CeO2(0.26)-MO(0.1) (MO: La2O3, Y2O3, Co2O3, Ga2O3, and ZrO2) and ZnO(0.7)-CeO2(0.3) catalysts with a fixed molar composition (value in parenthesis) were prepared by a sol-gel method for use in the urea methanolysis to dimethyl carbonate (DMC). Effect of acidity and basicity of ZnO(0.64)-CeO2(0.26)-MO(0.1) on the catalytic performance was investigated. Experimental results revealed that basicity of the catalysts played more important role in determining the catalytic performance than acidity. Yield of DMC increased with increasing basicity of the catalyst. Among the catalysts tested, ZnO(0.64)-CeO2(0.26)-La2O3(0.1) with the largest basicity exhibited the best catalytic performance (50.4% of DMC yield). (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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