文献类型：期刊文献

英文题名：Analysis of direct synthesis of dimethyl carbonate from methanol and CO2 intensified by in-situ hydration-assisted reactive distillation with side reactor

作者：Hu, Xutao[1];Cheng, Hongye[1];Kang, Xueqing[2];Chen, Lifang[1];Yuan, Xigang[3];Qi, Zhiwen[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Max Planck Partner Grp, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Wanhua Chem Grp Co Ltd, Natl Engn Res Ctr Polyurethane, Yantai 264006, Peoples R China;[3]Tianjin Univ, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

年份：2018

卷号：129

起止页码：109

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20182105235110);WOS:【SCI-EXPANDED(收录号:WOS:000435059000014)】；

基金：The financial support from National Natural Science Foundation of China (21576081, 21776074), and 111 Project (B08021) is greatly acknowledged.

语种：英文

外文关键词：Reactive distillation; Dimethyl carbonate; In-situ hydration; Process simulation; CO2 conversion

摘要：A reactive distillation (RD) process with a gas-phase side reactor potentially promoted by in-situ hydration is proposed to overcome the thermodynamic restriction of direct synthesis of dimethyl carbonate (DMC) from methanol and CO2. A homogeneous RD model with fixed bed reactor is established in gPROMS platform. The feasibility of the process for direct DMC synthesis is analyzed. The important configuration parameters (e.g., side withdrawal stage and recycle stage) and operating conditions (e.g., reflux ratio and feed ratio) of the RD process are systematically studied. In-situ hydration of ethylene oxide occurring only in the column is introduced for further enhancement. With the process intensification, the conversion of methanol is both improved from approximately 10% in a one-step reactor to 99.5% of RD with and without EO hydration.