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Updated: Jan 18, 2026

Preparation of Biopolymer Aerogels Using Green Solvents
Published on: July 4, 2016
Efficient non-aqueous solvent formed by 2-piperidineethanol and ethylene glycol for CO2 absorption
Dezhong Yang1, Meng Lv1, Jie Chen1
1School of Science, China University of Geosciences, Beijing 100083, China. 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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