Oligoamine ionic liquids supported on mesoporous microspheres for CO2 separation with good sorption kinetics and low cost Show others and affiliations
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 Engineering
Research subject Chemical Technology
Identifiers URN: urn:nbn:se:ltu:diva-78860 DOI: 10.1016/j.jcou.2020.101186 ISI: 000546650300002 Scopus ID: 2-s2.0-85091037126 OAI: oai:DiVA.org:ltu-78860 DiVA, id: diva2:1429654
Note Validerad;2020;Nivå 2;2020-05-12 (johcin)
2020-05-122020-05-122025-02-18 Bibliographically approved