Overcoming Thermodynamic Limitations in Dimethyl Carbonate Synthesis from Methanol and CO2
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Shifting the unfavorable equilibrium in the synthesis of dimethyl carbonate from CO2 and methanol via integrated separation opens a feasible and environmentally benign route. The subtle differences in the sorption kinetics of water and methanol on Linde type A zeolites are used to selectively remove water from the methanolic reaction medium with a separation factor of 100. Combining reaction with a low temperature separation enables a 10-time higher DMC yield compared to conventional conversion.
KeywordsDimethyl carbonate CO2 utilization Thermodynamic limitation Shifting equilibrium LTA zeolite
The authors are grateful to the financial support from two EU projects, TOPCOMBI (NMP2-CT-2005-515792-2) and INCAS (NMP-LA-2010-245988). We appreciate the fruitful scientific discussion with Prof. Gary L. Haller. The technical support from Mr. Franz-Xaver Hecht is also acknowledged.
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Conflict of interest
There are no conflicts to declare.
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