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Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents
Scientific Reports, Volume: 4
Swansea University Authors:
Enrico Andreoli , Andrew Barron
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DOI (Published version): 10.1038/srep07304
Abstract
Amine-based absorbents play a central role in CO2 sequestration and utilization. Amines react selectively with CO2, but a drawback is the unproductive weight of solvent or support in the absorbent. Efforts have focused on metal organic frameworks (MOFs) reaching extremely high CO2 capacity, but limi...
Published in: | Scientific Reports |
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ISSN: | 2045-2322 2045-2322 |
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2014
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URI: | https://cronfa.swan.ac.uk/Record/cronfa21052 |
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2020-12-17T16:22:04.1889749 v2 21052 2015-05-05 Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents cbd843daab780bb55698a3daccd74df8 0000-0002-1207-2314 Enrico Andreoli Enrico Andreoli true false 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false 2015-05-05 CHEG Amine-based absorbents play a central role in CO2 sequestration and utilization. Amines react selectively with CO2, but a drawback is the unproductive weight of solvent or support in the absorbent. Efforts have focused on metal organic frameworks (MOFs) reaching extremely high CO2 capacity, but limited selectivity to N2 and CH4, and decreased uptake at higher temperatures. A desirable system would have selectivity (cf. amine) and high capacity (cf. MOF), but also increased adsorption at higher temperatures. Here, we demonstrate a proof-of-concept where polyethyleneimine (PEI) is converted to a high capacity and highly selective CO2 absorbent using buckminsterfullerene (C60) as a cross-linker. PEI-C60 (CO2 absorption of 0.14 g/g at 0.1 bar/90°C) is compared to one of the best MOFs, Mg-MOF-74 (0.06 g/g at 0.1 bar/90°C), and does not absorb any measurable amount of CH4 at 50 bar. Thus, PEI-C60 can perform better than MOFs in the sweetening of natural gas. Journal Article Scientific Reports 4 2045-2322 2045-2322 3 12 2014 2014-12-03 10.1038/srep07304 This work is licensed under a Creative Commons Attribution 4.0 InternationalLicense. The images or other third party material in this article are included in thearticle’s Creative Commons license, unless indicated otherwise in the credit line; ifthe material is not included under the Creative Commons license, users will needto obtain permission fromthe license holder in order to reproduce thematerial. Toview a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2020-12-17T16:22:04.1889749 2015-05-05T17:42:33.6116052 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Enrico Andreoli 0000-0002-1207-2314 1 Eoghan P. Dillon 2 Laurie Cullum 3 Lawrence B. Alemany 4 Andrew Barron 0000-0002-2018-8288 5 0021052-15072016090123.pdf Andreoli2014.pdf 2016-07-15T09:01:23.1400000 Output 999287 application/pdf Version of Record true 2016-07-15T00:00:00.0000000 false |
title |
Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents |
spellingShingle |
Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents Enrico Andreoli Andrew Barron |
title_short |
Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents |
title_full |
Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents |
title_fullStr |
Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents |
title_full_unstemmed |
Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents |
title_sort |
Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents |
author_id_str_mv |
cbd843daab780bb55698a3daccd74df8 92e452f20936d688d36f91c78574241d |
author_id_fullname_str_mv |
cbd843daab780bb55698a3daccd74df8_***_Enrico Andreoli 92e452f20936d688d36f91c78574241d_***_Andrew Barron |
author |
Enrico Andreoli Andrew Barron |
author2 |
Enrico Andreoli Eoghan P. Dillon Laurie Cullum Lawrence B. Alemany Andrew Barron |
format |
Journal article |
container_title |
Scientific Reports |
container_volume |
4 |
publishDate |
2014 |
institution |
Swansea University |
issn |
2045-2322 2045-2322 |
doi_str_mv |
10.1038/srep07304 |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering |
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description |
Amine-based absorbents play a central role in CO2 sequestration and utilization. Amines react selectively with CO2, but a drawback is the unproductive weight of solvent or support in the absorbent. Efforts have focused on metal organic frameworks (MOFs) reaching extremely high CO2 capacity, but limited selectivity to N2 and CH4, and decreased uptake at higher temperatures. A desirable system would have selectivity (cf. amine) and high capacity (cf. MOF), but also increased adsorption at higher temperatures. Here, we demonstrate a proof-of-concept where polyethyleneimine (PEI) is converted to a high capacity and highly selective CO2 absorbent using buckminsterfullerene (C60) as a cross-linker. PEI-C60 (CO2 absorption of 0.14 g/g at 0.1 bar/90°C) is compared to one of the best MOFs, Mg-MOF-74 (0.06 g/g at 0.1 bar/90°C), and does not absorb any measurable amount of CH4 at 50 bar. Thus, PEI-C60 can perform better than MOFs in the sweetening of natural gas. |
published_date |
2014-12-03T03:24:56Z |
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1763750861172899840 |
score |
11.021648 |