Enhanced CO2 Absorption in Organic Solutions of Biobased Ionic Liquids

被引：29

作者：

Davarpanah, Elahe ^{[1
]}

Hernandez, Simelys ^{[1
,2
]}

Latini, Giulio ^{[2
]}

Pirri, Candido Fabrizio ^{[2
]}

Bocchini, Sergio ^{[2
]}

机构：

[1] Politecn Torino, Catalyt React Engn Sustainable Technol CREST Grp, Dept Appl Sci & Technol DISAT, Corso Duca Abruzzi 24, I-10129 Turin, Italy

[2] Ist Italiano Tecnol, Ctr Sustainable Future Technol CSFT Polito, Via Livorno 60, I-10144 Turin, Italy

来源：

ADVANCED SUSTAINABLE SYSTEMS | 2020年 / 4卷 / 01期

关键词：

amino-acid-based ionic liquid; CO2 absorption mechanism; CO2; capture; organic DMSO solvent; regenerability; CARBON CAPTURE; FUTURE;

D O I：

10.1002/adsu.201900067

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Solutions of biobased ionic liquids (ILs) for recovering CO2 from industrial flue gas are investigated. Four CO2 task-specific choline-based amino acids ([Cho][AA]): Alanine, Glycine, and, for the first time, Proline and Serine are tested. The drawbacks related to the high viscosity of these ILs are limited by applying dimethyl sulfoxide (DMSO) as a solvent, which is chosen because it is a polar aprotic liquid with a low toxicity, low vapor pressure, and relatively low price. The choline-based amino acids synthesized in this study have good absorption capacities (up to 0.3 mol CO2/mol IL, with only 12.5 wt% IL in DMSO) that represent the best performance of CO2 task-specific IL solutions to date. These solutions are competitive due to their low cost, low environmental impact, easy processability (due to their low viscosity) and good regenerability for the production and storage of pure CO2.

引用

页数：8

共 29 条

[1] A systematic review on CO2 capture with ionic liquids: Current status and future prospects [J].