Modification of polyethylene glycol with choline chloride and evaluation of the CO2 absorption capacity of their aqueous solutions

Mahsa Sadeghpour; Rozita Yusoff; Mohamed Kheireddine Aroua; Mojtaba Tabandeh

doi:10.1002/ghg.1741

Modification of polyethylene glycol with choline chloride and evaluation of the CO₂ absorption capacity of their aqueous solutions

Mahsa Sadeghpour
, Rozita Yusoff^*
, Mohamed Kheireddine Aroua
, Mojtaba Tabandeh

^*Corresponding author for this work

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

In this study, two new water-soluble poly ionic liquids (PILs) polyethylene glycol- Di choline chloride (PEG-(ChCl)₂) were modified, with two molecular weights of PEG, 400 and 600, to be used as solvents for CO₂ capture. The modified polymers were characterized using Fourier transform infra-red (FT-IR) spectroscopy and proton nuclear magnetic resonance (¹H-NMR). CO₂ absorption using the PILs was conducted at temperatures from 30 to 70°C and at pressures ranging from 10 to 13 bars. Both PILs saturated and then regenerated under the regeneration temperature: 90–100°C. The results showed that most of CO₂ in the liquid phase is released through the thermal regeneration before solutions start to boil after three cycles. PEG (400)–(ChCl)_2, and PEG(600)–(ChCl)₂ with a concentration of 0.03M showed CO₂ loading of 16.24 and 15.68, respectively. These results were 25% higher than the original PEG (400–600).

Original language	English
Pages (from-to)	324-334
Number of pages	11
Journal	Greenhouse Gases: Science and Technology
Volume	8
Issue number	2
DOIs	https://doi.org/10.1002/ghg.1741
State	Published - Apr 2018

Bibliographical note

Publisher Copyright:
© 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure
SDG 13 Climate Action

Keywords

choline chloride
CO absorption
poly ionic liquids
polyethylene glycol

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry

Access to Document

10.1002/ghg.1741

Cite this

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title = "Modification of polyethylene glycol with choline chloride and evaluation of the CO2 absorption capacity of their aqueous solutions",

abstract = "In this study, two new water-soluble poly ionic liquids (PILs) polyethylene glycol- Di choline chloride (PEG-(ChCl)2) were modified, with two molecular weights of PEG, 400 and 600, to be used as solvents for CO2 capture. The modified polymers were characterized using Fourier transform infra-red (FT-IR) spectroscopy and proton nuclear magnetic resonance (1H-NMR). CO2 absorption using the PILs was conducted at temperatures from 30 to 70°C and at pressures ranging from 10 to 13 bars. Both PILs saturated and then regenerated under the regeneration temperature: 90–100°C. The results showed that most of CO2 in the liquid phase is released through the thermal regeneration before solutions start to boil after three cycles. PEG (400)–(ChCl)2, and PEG(600)–(ChCl)2 with a concentration of 0.03M showed CO2 loading of 16.24 and 15.68, respectively. These results were 25\% higher than the original PEG (400–600).",

keywords = "choline chloride, CO absorption, poly ionic liquids, polyethylene glycol",

author = "Mahsa Sadeghpour and Rozita Yusoff and Aroua, \{Mohamed Kheireddine\} and Mojtaba Tabandeh",

note = "Publisher Copyright: {\textcopyright} 2017 Society of Chemical Industry and John Wiley \& Sons, Ltd.",

year = "2018",

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language = "English",

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T1 - Modification of polyethylene glycol with choline chloride and evaluation of the CO2 absorption capacity of their aqueous solutions

AU - Sadeghpour, Mahsa

AU - Yusoff, Rozita

AU - Aroua, Mohamed Kheireddine

AU - Tabandeh, Mojtaba

PY - 2018/4

Y1 - 2018/4

N2 - In this study, two new water-soluble poly ionic liquids (PILs) polyethylene glycol- Di choline chloride (PEG-(ChCl)2) were modified, with two molecular weights of PEG, 400 and 600, to be used as solvents for CO2 capture. The modified polymers were characterized using Fourier transform infra-red (FT-IR) spectroscopy and proton nuclear magnetic resonance (1H-NMR). CO2 absorption using the PILs was conducted at temperatures from 30 to 70°C and at pressures ranging from 10 to 13 bars. Both PILs saturated and then regenerated under the regeneration temperature: 90–100°C. The results showed that most of CO2 in the liquid phase is released through the thermal regeneration before solutions start to boil after three cycles. PEG (400)–(ChCl)2, and PEG(600)–(ChCl)2 with a concentration of 0.03M showed CO2 loading of 16.24 and 15.68, respectively. These results were 25% higher than the original PEG (400–600).

AB - In this study, two new water-soluble poly ionic liquids (PILs) polyethylene glycol- Di choline chloride (PEG-(ChCl)2) were modified, with two molecular weights of PEG, 400 and 600, to be used as solvents for CO2 capture. The modified polymers were characterized using Fourier transform infra-red (FT-IR) spectroscopy and proton nuclear magnetic resonance (1H-NMR). CO2 absorption using the PILs was conducted at temperatures from 30 to 70°C and at pressures ranging from 10 to 13 bars. Both PILs saturated and then regenerated under the regeneration temperature: 90–100°C. The results showed that most of CO2 in the liquid phase is released through the thermal regeneration before solutions start to boil after three cycles. PEG (400)–(ChCl)2, and PEG(600)–(ChCl)2 with a concentration of 0.03M showed CO2 loading of 16.24 and 15.68, respectively. These results were 25% higher than the original PEG (400–600).

KW - choline chloride

KW - CO absorption

KW - poly ionic liquids

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