Efficient non-aqueous solvent formed by 2-piperidineethanol and ethylene glycol for CO2 absorption

Dezhong Yang; Meng Lv; Jie Chen

doi:10.1039/C9CC06320J

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Efficient non-aqueous solvent formed by 2-piperidineethanol and ethylene glycol for CO₂ absorption†

Dezhong Yang,

*^a Meng Lv^a and Jie Chen^a

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* Corresponding authors

^a School of Science, China University of Geosciences, Beijing 100083, China
E-mail: yangdz@cugb.edu.cn

Abstract

The non-aqueous solvent formed by 2-piperidineethanol (2-PE) and ethylene glycol (EG) exhibited a high CO₂ capacity of up to 0.97 mol CO₂ per mol amine at 25 °C and 1.0 atm and a low regeneration temperature of 50 °C, indicating the low energy consumption in the regeneration process. Surprisingly, CO₂ directly reacted with EG by forming a carbonate species, proved by FTIR and NMR results.

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Article information

DOI: https://doi.org/10.1039/C9CC06320J
Article type: Communication
Submitted: 14 Aug 2019
Accepted: 23 Sep 2019
First published: 23 Sep 2019

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Chem. Commun., 2019,55, 12483-12486

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Efficient non-aqueous solvent formed by 2-piperidineethanol and ethylene glycol for CO₂ absorption

D. Yang, M. Lv and J. Chen, Chem. Commun., 2019, 55, 12483 DOI: 10.1039/C9CC06320J

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Chemical Communications