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Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents

Enrico Andreoli Orcid Logo, Eoghan P. Dillon, Laurie Cullum, Lawrence B. Alemany, Andrew Barron Orcid Logo

Scientific Reports, Volume: 4

Swansea University Authors: Enrico Andreoli Orcid Logo, Andrew Barron Orcid Logo

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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...

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Published in: Scientific Reports
ISSN: 2045-2322 2045-2322
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa21052
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spelling 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
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
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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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