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Oligoamine ionic liquids supported on mesoporous microspheres for CO2 separation with good sorption kinetics and low cost
Umeå University, Faculty of Science and Technology, Department of Chemistry.ORCID iD: 0000-0003-1901-6961
Umeå University, Faculty of Science and Technology, Department of Chemistry. 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
Other Engineering and Technologies Computer Systems Computer Sciences Vehicle and Aerospace Engineering Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:umu:diva-171289DOI: 10.1016/j.jcou.2020.101186ISI: 000546650300002Scopus ID: 2-s2.0-85091037126OAI: oai:DiVA.org:umu-171289DiVA, id: diva2:1433604
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Bio4Energy
Funder
Bio4EnergySwedish Energy AgencySwedish Research Council FormasAvailable from: 2020-06-01 Created: 2020-06-01 Last updated: 2026-03-12Bibliographically approved

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Khokarale, Santosh G.Mikkola, Jyri-Pekka

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Journal of CO2 Utilization
Other Engineering and TechnologiesComputer SystemsComputer SciencesVehicle and Aerospace EngineeringProduction Engineering, Human Work Science and Ergonomics

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