Chemical conversion of CO2: evaluation of different ionic liquids as catalysts in dimethyl carbonate synthesis

被引：19
作者：
Vieira, Michele O. [1 ]
Aquino, Aline S. [1 ]
Schutz, Marta K. [2 ]
Vecchia, Felipe D. [3 ]
Ligabue, Rosane [1 ,2 ]
Seferin, Marcus [1 ,2 ]
Einloft, Sandra [1 ,2 ]
机构：
[1] PUCRS Pontificia Univ Catolica Rio Grande do Sul, Engn & Mat Technol Grad Program, Ave Ipiranga,6681 Partenon, BR-90619900 Porto Alegre, RS, Brazil
[2] PUCRS Pontificia Univ Catolica Rio Grande do Sul, Sch Chem, Ave Ipiranga 6681 Partenon, BR-90619900 Porto Alegre, RS, Brazil
[3] PUCRS Pontificia Univ Catolica Rio Grande do Sul, Sch Engn, Ave Ipiranga 6681 Partenon, BR-90619900 Porto Alegre, RS, Brazil
来源：
13TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-13 | 2017年 / 114卷
关键词：
catalysts; dimethyl carbonate; ionic liquids; methanol; carbon dioxide; DIOXIDE; METHANOL; OXIDE;
D O I：
10.1016/j.egypro.2017.03.1876
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Dimethyl carbonate (DMC) synthesis from methanol and CO(2)was investigated using ionic liquids (ILs) as catalysts. ILs based on 1-alkyl-3-methyl imidazolium and N-alkylpyridine cations and [Cl-], [BF4-], [PF6], [Tf2N-] anions were used in this study. Selectivity in DMC increased in the anion order: [Tf2N-]< [PF6] < [Cl-] < [BF4-], following the same behavior for both cations. Methanol conversion was similar for all tested ILs. The best result for DMC selectivity (83%) was obtained when [emim][BF4] was used as catalyst. After 5 recycling tests, a loss of 8.5% in the catalyst activity was observed for [bmim][BF4]. (C) 2017 The Authors. Published by Elsevier Ltd.
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收藏
页码：7141 / 7149
页数：9
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