Critical temperatures and pressures of reacting mixture in synthesis of dimethyl carbonate with methanol and carbon dioxide  

作　　者：Xing Cui Guo Zhang Feng Qin Guo Fu Wang Jian Guo Wang 

机构地区：[1]State Key Laboratory of Coal Conversion, Institute of Coal Chemistry Chinese Academy of Sciences, P.O. Bx 165, Taiyuan, Shanxi 030001, China [2]Graduate School of the Chinese Academy of Sciences Beijing 100049, China

出　　处：《Chinese Chemical Letters》2008年第2期249-252,共4页中国化学快报（英文版）

基　　金：financial support of the State Key Fundamental Research Project(2006CB202504);the National Natural Science Foundation of China(No.20473110);Natural Science Foundation of Shanxi Province.

摘　　要：Critical temperatures and pressures of nominal reacting mixture in synthesis of dimethyl carbonate （DMC） from methanol and carbon dioxide （quaternary mixture of carbon dioxide ＋ methanol ＋ water ＋ DMC） were measured using a high-pressure view cell. The results suggested that the critical properties of the reacting mixture depended on the reaction extent as well as its initial composition （initial ratio of carbon dioxide to methanol）. Such information is essential for determining the reaction conditions when one intends to carry out the synthesis of DMC with CO2 and methanol under supercritical conditions.Critical temperatures and pressures of nominal reacting mixture in synthesis of dimethyl carbonate （DMC） from methanol and carbon dioxide （quaternary mixture of carbon dioxide ＋ methanol ＋ water ＋ DMC） were measured using a high-pressure view cell. The results suggested that the critical properties of the reacting mixture depended on the reaction extent as well as its initial composition （initial ratio of carbon dioxide to methanol）. Such information is essential for determining the reaction conditions when one intends to carry out the synthesis of DMC with CO2 and methanol under supercritical conditions.

关 键 词：Critical properties Reacting mixture Supercritical fluid Dimethyl carbonate SYNTHESIS METHANOL Carbon dioxide 

分 类 号：TQ42[化学工程]