Modification of polyethylene glycol with choline chloride and evaluation of the CO 2  absorption capacity of their aqueous solutions | Zendy

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

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Modification of polyethylene glycol with choline chloride and evaluation of the CO 2 absorption capacity of their aqueous solutions

Author(s) -

Sadeghpour Mahsa,

Yusoff Rozita,

Aroua Mohamed Kheireddine,

Tabandeh Mojtaba

Publication year - 2018

Publication title -

greenhouse gases: science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.45

H-Index - 32

ISSN - 2152-3878

DOI - 10.1002/ghg.1741

Subject(s) - polyethylene glycol , peg ratio , choline chloride , aqueous solution , absorption (acoustics) , chemistry , ionic liquid , nuclear chemistry , fourier transform infrared spectroscopy , polymer , polymer chemistry , peg 400 , materials science , chemical engineering , organic chemistry , catalysis , finance , engineering , economics , composite material

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 CO 2 capture. The modified polymers were characterized using Fourier transform infra‐red (FT‐IR) spectroscopy and proton nuclear magnetic resonance ( 1 H‐NMR). CO 2 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 CO 2 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 CO 2 loading of 16.24 and 15.68, respectively. These results were 25% higher than the original PEG (400–600). © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.

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