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http://dx.doi.org/10.9713/kcer.2011.49.5.530

Dimethyl Carbonate Synthesis by Methanol Oxidative Carbonylation  

Nam, Jeong-Kwang (Environment & Research Center, Korea Research Institute of Chemical, Technology(KRICT))
Cho, Deug-Hee (Environment & Research Center, Korea Research Institute of Chemical, Technology(KRICT))
Suh, Jeong-Kwon (Environment & Research Center, Korea Research Institute of Chemical, Technology(KRICT))
Kim, Seong-Bo (Environment & Research Center, Korea Research Institute of Chemical, Technology(KRICT))
Publication Information
Korean Chemical Engineering Research / v.49, no.5, 2011 , pp. 530-534 More about this Journal
Abstract
The synthesis of dimethyl carbonate by liquid phase oxidative carbonylation of methanol was studied under batch reaction system. Reaction factors such as effect on various metals, anion containing in copper catalyst, temperature, carbon monoxide and oxygen molar ratio and copper content were investigated. In particular $CuCl_2{\cdot}2H_2O$ showed the excellent of the methanol conversion 65.2%, DMC selectivity 96.6% reaction condition under 1.0 g, $150^{\circ}C$, MeOH/CO/$O_2$=0.2/0.215/0.05 (molar ratio). $CuCl_2$ led to corrosion of the reactor. Thus, a new catalyst system using supports was investigated to resolve these corrosion problem. Influence on various supports were examined and copper catalyst supported on zeolite Y showed the most excellent activity on the formation of dimethyl carbonate. The amount of Fe dissolved during the reaction using ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometer) was compared with catalysts, calcined Cu/zeolite Y showed the lower value below 5% than $CuCl_2-2H_2O$.
Keywords
Dimethyl Carbonate; Methanol; Oxidative Carbonylation; Catalyst;
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