Synthesis of dimethyl carbonate by transesterification over CaO/carbon solid base catalysts

摘要

Carbon supported CaO solid base catalysts, CaO/C and CaO-C were prepared by loading CaO on carbon through impregnation and pugging method, respectively. The catalytic performance of CaO-C prepared by pugging method was much higher than that of CaO/C prepared by impregnation method due to its larger effective pore diameter and smaller inner diffusion resistance. When the CaO-C composite was used in catalytic distillation reactor, PC conversion and DMC yield reached 100% and 98% at 337K with 0.3 h~(-1) of LHSV, respectively.