Ionic Liquids in Carbon Capture

Nowadays, the major challenges to meet towards the commercialization of processes that could effectively mitigate industrial CO₂ emissions are mostly related to high capital and operational costs. Endowed with a wide range of distinct assets, Ionic Liquids (ILs) are considered as alternative solvents for addressing the high energy demand of CO₂ capture. In addition, ILs can bring step changes in the efficiency of all currently available CO₂ capture technologies, being directly applied as liquid absorbents, or used as adsorbent and membrane modifiers that enhance the CO₂ selectivity. This chapter describes the binding mechanisms of CO₂ and other gases by ILs and discusses on practical issues for the applicability of ILs. Furthermore, the contribution of computational methods in establishing the link between ILs chemical structure and macroscopic behavior and in reliable property prediction is highlighted and the main challenges still hampering the commercial application of ILs in CO₂ capture are described.

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Book Title – Sustainable Carbon Capture: Technologies and Applications

Chapter Author(s) –

George E. Romanos, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, GR-153 10, Aghia Paraskevi Attikis, Greece. g.romanos@inn.demokritos.gr

Niki Vergadou, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, GR-153 10, Aghia Paraskevi Attikis, Greece. n.vergadou@inn.demokritos.gr

Ioannis G. Economou, Chemical Engineering Program, Texas A&M University at Qatar, Education City, PO Box 23874, Doha, Qatar. ioannis.economou@qatar.tamu.edu

Chapter Number and Title – Chapter 3, Ionic Liquids in Carbon Capture