Ahn, BS Han, MS Lee, YJ Abimanyu, H 2024-01-19T14:39:05Z 2024-01-19T14:39:05Z 2022-03-07 2004-02 https://pubs.kist.re.kr/handle/201004/117060 DMC was continuously synthesized by transesterification between EC and methanol using fixed-bed K/MgO catalyst. K/MgO catalyst has been applied and proven to be effective to DMC production in our previous experiment. MgO catalyst was formed as pellet shape to be employed as a Support for the fixed-bed catalyst in continuous system. Calcinations temperature and catalyst content were changed to prepare K/MgO pellet catalyst. In the presence of the catalyst, the effects of reaction temperature and pressure, LHSV, molar ratio of reactants on DMC synthesis were intensively investigated. In the reaction conditions of LHSV = 0.1 h(-1), reaction temperature of 125degreesC, pressure of 6.8 X 10(2) kPa and molar ratio between MeOH and EC of 4.0, it has shown a DMC selectivity around 100% and DMC yield of 52-53% close to equilibrium state. The properly prepared catalyst will be applied to reactive distillation system to maximize conversion of reactants in the future. In the long run, we intend to establish much easier DMC synthetic process using a single column for reaction and distillation. English WORLD SCIENTIFIC PUBL CO PTE LTD Transesterification between methanol and ethylene carbonate over fixed-bed K/MgO catalyst for reactive distillation Conference 10.1142/9789812702623_0065 1 4th International Conference on Separation Science and Technology (ICSST-04), pp.329 - 333 4th International Conference on Separation Science and Technology (ICSST-04) 329 333 SI Nanning, PEOPLES R CHINA 2004-02-18 FRONTIERS ON SEPARATION SCIENCE AND TECHNOLOGY 000223419800065