文献类型：期刊文献

中文题名：超临界条件下CO_2与CH_3OH的催化酯化

英文题名：CATALYTIC ESTERIFICATION FOR CARBON DIOXIDE AND METHANOL UNDER SUPERCRITICAL CONDITION

作者：房鼎业[1];曹发海[1];刘殿华[1];桂新胜[1]

机构：[1]华东理工大学化学工程系

年份：1998

卷号：26

期号：2

起止页码：170

中文期刊名：燃料化学学报

外文期刊名：Journal of Fuel Chemistry and Technology

收录：CSTPCD;;EI(收录号：1998074298880);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金;高校博士学科点专项基金

语种：中文

中文关键词：超临界;二氧化碳;甲醇;碳酸二甲酯;DMC;合成

外文关键词：supercritical reaction, carbon dioxide, methanol, dimethyl carbonate (DMC)

摘要：在超临界条件下，采用高压搅拌釜研究了ＣＯ２与ＣＨ３ＯＨ催化合成生成碳酸二甲酯的反应。探索了催化剂类型与用量，考察了温度、压力与反应时间对反应的影响，定量研究了产物浓度与反应温度、压力、时间的关系。对临界反应现象与反应机理作出初步解释。
Catalytic synthesis of dimethyl carbonate from carbon dioxide and methanol under high pressure has been investigated in a agitated reactor The type and amount of catalysts have also been studied Mg(OCH_3)_2 has been used as catalysts The optimum ratio of Mg powder to methanol is 005 The effects of temperature, pressure and reaction time on reaction results were measured The quantitative relations such as DMC concentration with reaction temperature, pressure and time were studied individually It shows that the reaction rate obeys the law of the first order reactions The optimum reaction pressure and temperature are 75008MPa and 17831℃ respectively The preliminary explanation was made for the supercritical phenomena and reaction mechanism in the experiments