期刊
JOURNAL OF CLEANER PRODUCTION
卷 279, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2020.123344
关键词
Dimethyl carbonate (DMC); CO2; Chemical reaction; Methanol; Catalytic materials
资金
- National Natural Science Foundation of China [21376276, 21643002, 2017B090901003, 2016B010114004, 2016A050503001]
- Natural Science Foundation of Guangdong Province [2016A030313354, 201607010042]
- Fundamental Research Funds for the Central Universities [171gjc37]
The direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol is a green synthetic route, but the main challenge lies in designing efficient and stable catalysts to increase yield. Methods such as electro-assist synthesis and membrane reactor for separating products are being studied to improve the process.
The direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol is a green synthetic route owing to nontoxicity of starting materials and synthetic process. DMC is widely used as a nontoxic solvent, effective fuel additive, and synthetic intermediate in medicine, pharmaceutics, chemistry and other fields. The key challenge is to design efficient and stable catalysts, which mainly includes ionic liquids, alkali carbonates, transition metal oxides, heteropoly acids, supported catalysts. The problems of low yield and difficulties in experiments have not been fundamentally solved. Electro-assist synthesis that provides extra energy for CO2 activation is tried and membranes reactor that separates products in time to increase DMC yield is also studied. Dehydrant catalysts with in-situ hydration for water removal can significantly improve DMC yield and catalysts stability because chemical equilibrium shifts substantially and the catalysts deactivation by produced water poisoning is avoided. This direction will have a considerable breakthrough when appropriate combination of catalysts and dehydrant is obtained. (c) 2020 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据