Journal article 1415 views 338 downloads
CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents
The Journal of Physical Chemistry C, Volume: 121, Issue: 39, Pages: 21772 - 21781
Swansea University Authors: Enrico Andreoli , Andrew Barron
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DOI (Published version): 10.1021/acs.jpcc.7b07541
Abstract
Decoupling amine loading from diffusion resistance is one of the main challenges in the development of immobilised amines CO2 sorbents. Water has been reported to serve this goal alleviating CO2 diffusional hindrance in highly loaded amine sorbents. Acting as a mass transport facilitator, water is n...
Published in: | The Journal of Physical Chemistry C |
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ISSN: | 1932-7447 |
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2017
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URI: | https://cronfa.swan.ac.uk/Record/cronfa35139 |
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2021-01-14T12:54:25.8495027 v2 35139 2017-09-06 CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents cbd843daab780bb55698a3daccd74df8 0000-0002-1207-2314 Enrico Andreoli Enrico Andreoli true false 92e452f20936d688d36f91c78574241d Andrew Barron Andrew Barron true false 2017-09-06 EAAS Decoupling amine loading from diffusion resistance is one of the main challenges in the development of immobilised amines CO2 sorbents. Water has been reported to serve this goal alleviating CO2 diffusional hindrance in highly loaded amine sorbents. Acting as a mass transport facilitator, water is not the only partner molecule able to enhance bulk CO2 diffusion. Herein, we show that the enhancing effect of methanol is comparable to that of water in polyethyleneimine-based sorbents. Other molecules, such as ethanol, isopropanol, and chloroform, were also examined but did not appear to facilitate CO2 transport and uptake. Based on a comparison of the Hansen solubility parameters of these molecules, it appears that polarity plays a crucial role in enhancing CO2 diffusion together with molecular hindrance, and hydrogen bonding to a lesser extent. Journal Article The Journal of Physical Chemistry C 121 39 21772 21781 1932-7447 19 9 2017 2017-09-19 10.1021/acs.jpcc.7b07541 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2021-01-14T12:54:25.8495027 2017-09-06T15:00:25.0858020 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Enrico Andreoli 0000-0002-1207-2314 1 Andrew Barron 2 0035139-06092017152724.pdf koutsianos2017v2.pdf 2017-09-06T15:27:24.6470000 Output 1395819 application/pdf Accepted Manuscript true 2017-09-04T00:00:00.0000000 true eng |
title |
CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents |
spellingShingle |
CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents Enrico Andreoli Andrew Barron |
title_short |
CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents |
title_full |
CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents |
title_fullStr |
CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents |
title_full_unstemmed |
CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents |
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CO2 Capture Partner Molecules in Highly Loaded PEI Sorbents |
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cbd843daab780bb55698a3daccd74df8_***_Enrico Andreoli 92e452f20936d688d36f91c78574241d_***_Andrew Barron |
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Enrico Andreoli Andrew Barron |
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Enrico Andreoli Andrew Barron |
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The Journal of Physical Chemistry C |
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Decoupling amine loading from diffusion resistance is one of the main challenges in the development of immobilised amines CO2 sorbents. Water has been reported to serve this goal alleviating CO2 diffusional hindrance in highly loaded amine sorbents. Acting as a mass transport facilitator, water is not the only partner molecule able to enhance bulk CO2 diffusion. Herein, we show that the enhancing effect of methanol is comparable to that of water in polyethyleneimine-based sorbents. Other molecules, such as ethanol, isopropanol, and chloroform, were also examined but did not appear to facilitate CO2 transport and uptake. Based on a comparison of the Hansen solubility parameters of these molecules, it appears that polarity plays a crucial role in enhancing CO2 diffusion together with molecular hindrance, and hydrogen bonding to a lesser extent. |
published_date |
2017-09-19T19:11:34Z |
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1821343266375729152 |
score |
11.04748 |