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Effect of the Additives on Direct Dimethyl Carbonate Synthesis using Methanol and Carbon Dioxide over Ce0.8Zr0.2O2 Catalyst  

Han, Gi Bo (National Research Laboratory, School of Chemical Engineering & Technology, Yeungnam University)
Park, No-Kuk (National Research Laboratory, School of Chemical Engineering & Technology, Yeungnam University)
Yoon, Suk Hoon (National Research Laboratory, School of Chemical Engineering & Technology, Yeungnam University)
Lee, Tae Jin (National Research Laboratory, School of Chemical Engineering & Technology, Yeungnam University)
Publication Information
Korean Chemical Engineering Research / v.45, no.6, 2007 , pp. 554-559 More about this Journal
Abstract
In order to improve the reactivity for the direct synthesis of dimethyl carbonate (DMC) using methanol and carbon dioxide, the various additives were used in the DMC synthesis using $Ce_{0.8}Zr_{0.2}O_2$ catalyst, and then effect of the additives was investigated. The various additives were molecular sieves 3A and the compounds having the various functional groups such as sulfate, carbonate, nitrate and phosphate. As a result, the compound such as $K_2SO_4$ and $Na_2SO_4$ having sulfate group were the most effective additive among the various additives. When $K_2SO_4$ was used as an additive in the direct synthesis of DMC, the amount of DMC was about 0.91 mmol, which was the highest mount of DMC among using only-$Ce_{0.8}Zr_{0.2}O_2$ catalyst and the various additives.
Keywords
Dimethyl Carbonate; Methanol; Carbon Dioxide; $Ce_{1-x}Zr_xO_2$ Catalysts; Additives;
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