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A hybrid absorption–adsorption method to efficiently capture carbon

Removal of carbon dioxide is an essential step in many energy-related processes. Here we report a novel slurry concept that combines specific advantages of metal-organic frameworks, ion liquids, amines and membranes by suspending zeolitic imidazolate framework-8 in glycol-2-methylimidazole solution....

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Detalles Bibliográficos
Autores principales: Liu, Huang, Liu, Bei, Lin, Li-Chiang, Chen, Guangjin, Wu, Yuqing, Wang, Jin, Gao, Xueteng, Lv, Yining, Pan, Yong, Zhang, Xiaoxin, Zhang, Xianren, Yang, Lanying, Sun, Changyu, Smit, Berend, Wang, Wenchuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4214418/
https://www.ncbi.nlm.nih.gov/pubmed/25296559
http://dx.doi.org/10.1038/ncomms6147
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author Liu, Huang
Liu, Bei
Lin, Li-Chiang
Chen, Guangjin
Wu, Yuqing
Wang, Jin
Gao, Xueteng
Lv, Yining
Pan, Yong
Zhang, Xiaoxin
Zhang, Xianren
Yang, Lanying
Sun, Changyu
Smit, Berend
Wang, Wenchuan
author_facet Liu, Huang
Liu, Bei
Lin, Li-Chiang
Chen, Guangjin
Wu, Yuqing
Wang, Jin
Gao, Xueteng
Lv, Yining
Pan, Yong
Zhang, Xiaoxin
Zhang, Xianren
Yang, Lanying
Sun, Changyu
Smit, Berend
Wang, Wenchuan
author_sort Liu, Huang
collection PubMed
description Removal of carbon dioxide is an essential step in many energy-related processes. Here we report a novel slurry concept that combines specific advantages of metal-organic frameworks, ion liquids, amines and membranes by suspending zeolitic imidazolate framework-8 in glycol-2-methylimidazole solution. We show that this approach may give a more efficient technology to capture carbon dioxide compared to conventional technologies. The carbon dioxide sorption capacity of our slurry reaches 1.25 mol l(−1) at 1 bar and the selectivity of carbon dioxide/hydrogen, carbon dioxide/nitrogen and carbon dioxide/methane achieves 951, 394 and 144, respectively. We demonstrate that the slurry can efficiently remove carbon dioxide from gas mixtures at normal pressure/temperature through breakthrough experiments. Most importantly, the sorption enthalpy is only −29 kJ mol(−1), indicating that significantly less energy is required for sorbent regeneration. In addition, from a technological point of view, unlike solid adsorbents slurries can flow and be pumped. This allows us to use a continuous separation process with heat integration.
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spelling pubmed-42144182014-11-13 A hybrid absorption–adsorption method to efficiently capture carbon Liu, Huang Liu, Bei Lin, Li-Chiang Chen, Guangjin Wu, Yuqing Wang, Jin Gao, Xueteng Lv, Yining Pan, Yong Zhang, Xiaoxin Zhang, Xianren Yang, Lanying Sun, Changyu Smit, Berend Wang, Wenchuan Nat Commun Article Removal of carbon dioxide is an essential step in many energy-related processes. Here we report a novel slurry concept that combines specific advantages of metal-organic frameworks, ion liquids, amines and membranes by suspending zeolitic imidazolate framework-8 in glycol-2-methylimidazole solution. We show that this approach may give a more efficient technology to capture carbon dioxide compared to conventional technologies. The carbon dioxide sorption capacity of our slurry reaches 1.25 mol l(−1) at 1 bar and the selectivity of carbon dioxide/hydrogen, carbon dioxide/nitrogen and carbon dioxide/methane achieves 951, 394 and 144, respectively. We demonstrate that the slurry can efficiently remove carbon dioxide from gas mixtures at normal pressure/temperature through breakthrough experiments. Most importantly, the sorption enthalpy is only −29 kJ mol(−1), indicating that significantly less energy is required for sorbent regeneration. In addition, from a technological point of view, unlike solid adsorbents slurries can flow and be pumped. This allows us to use a continuous separation process with heat integration. Nature Pub. Group 2014-10-09 /pmc/articles/PMC4214418/ /pubmed/25296559 http://dx.doi.org/10.1038/ncomms6147 Text en Copyright © 2014, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Liu, Huang
Liu, Bei
Lin, Li-Chiang
Chen, Guangjin
Wu, Yuqing
Wang, Jin
Gao, Xueteng
Lv, Yining
Pan, Yong
Zhang, Xiaoxin
Zhang, Xianren
Yang, Lanying
Sun, Changyu
Smit, Berend
Wang, Wenchuan
A hybrid absorption–adsorption method to efficiently capture carbon
title A hybrid absorption–adsorption method to efficiently capture carbon
title_full A hybrid absorption–adsorption method to efficiently capture carbon
title_fullStr A hybrid absorption–adsorption method to efficiently capture carbon
title_full_unstemmed A hybrid absorption–adsorption method to efficiently capture carbon
title_short A hybrid absorption–adsorption method to efficiently capture carbon
title_sort hybrid absorption–adsorption method to efficiently capture carbon
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4214418/
https://www.ncbi.nlm.nih.gov/pubmed/25296559
http://dx.doi.org/10.1038/ncomms6147
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