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Oligoamine ionic liquids supported on mesoporous microspheres for CO2 separation with good sorption kinetics and low cost
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0002-7477-4960
Department of Chemistry, Chemical-Biological Centre (KBC), Umeå University, Umeå, Sweden.
Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy.
Department of Chemistry, Chemical-Biological Centre (KBC), Umeå University, Umeå, Sweden. Industrial Chemistry & Reaction Engineering, Johan Gadollin Process Chemistry Centre, Åbo Akademi University, Åbo-Turku, Finland.
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2020 (English)In: Journal of CO2 Utilization, ISSN 2212-9820, E-ISSN 2212-9839, Vol. 39, article id 101186Article in journal (Refereed) Published
Abstract [en]

Ionic liquids display good CO2 absorption capacity but poor absorption kinetics and high costs. In the present work, we show that these problems can be solved by impregnating the new low cost ionic liquid pentaethylenehexammonium chloride [PEHA][Cl] and the corresponding amine precursor on a low cost mesoporous microsphere support. Nitrogen adsorption/ desorption, high-resolution SEM and thermogravimetric analysis were employed to analyze the structural and thermal properties of the prepared sorbents. The CO2 adsorption and desorption performance was studied by column experiments and mathematical models were fitted to the data. The results showed that sorbents displayed excellent sorption kinetics and capacity, comparable to the best reports in the literature. In addition, the sorbents could be regenerated and displayed high thermal stability. Finally, the costs of the sorbents developed in the present work is much lower than previously reported sorbents. Therefore this novel supported IL system could be promising for industrial CO2 removal and recovery applications.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 39, article id 101186
Keywords [en]
Amines, Carbon dioxide, Gas separation, Ionic liquids, Kinetics
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-78860DOI: 10.1016/j.jcou.2020.101186ISI: 000546650300002Scopus ID: 2-s2.0-85091037126OAI: oai:DiVA.org:ltu-78860DiVA, id: diva2:1429654
Note

Validerad;2020;Nivå 2;2020-05-12 (johcin)

Available from: 2020-05-12 Created: 2020-05-12 Last updated: 2023-09-05Bibliographically approved

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Zhou, MingHedlund, Jonas

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