Premium
Enhancement of Dimethyl Carbonate Synthesis with In Situ Hydrolysis of 2,2‐Dimethoxy Propane
Author(s) -
Wang Shengping,
Zhou Jingjie,
Zhao Shuyang,
Zhao Yujun,
Ma Xinbin
Publication year - 2016
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400603
Subject(s) - dimethyl carbonate , propane , catalysis , methanol , hydrolysis , chemistry , yield (engineering) , in situ , carbonate , inorganic chemistry , chemical engineering , organic chemistry , materials science , metallurgy , engineering
The direct synthesis of dimethyl carbonate (DMC) from CO 2 and methanol is an attractive approach based on green chemistry. The influence of the addition of 2,2‐dimethoxy propane (DMP) on DMC formation was investigated over spindle‐CeO 2 , cube‐CeO 2 , and octahedron‐CeO 2 . Among these catalysts, spindle‐CeO 2 showed a more favorable catalytic performance than the other CeO 2 catalysts for the direct DMC synthesis with the addition of DMP. The yield of DMC was greatly improved by in situ removal of water from the reaction system through the addition of DMP. This indicated that hydrolysis of DMP overcomes the thermodynamic limitations of DMC formation and is highly effective for increasing the DMC yield. Thermodynamic calculations and the higher equilibrium constant supported this result.