Conventional synthesis methods of short-chain dialkylcarbonates and novel production technology via direct route from alcohol and waste CO2

The aim of this work is to review different synthesis methods of dialkylcarbonates with special emphasis on diethyl carbonate synthesis methodologies. The novel synthesis route for dimethyl carbonate and diethyl carbonate based on the utilization of alcohol and carbon dioxide as the raw materials, together with heterogeneous catalysts, is presented.

Figure optionsDownload high-quality image (71 K)Download as PowerPoint slideResearch highlights▶ Chemical fixation of carbon dioxide has been reviewed. ▶ Main focus on diethyl carbonate. ▶ Conventional technologies suffer from toxicity phosgene, corrosion and low production rate. ▶ Direct synthesis of DMC from methanol and CO2 is thermodynamically unfeasible. ▶ Butylene oxide can be used as a chemical water trap.