2019-Sustainable Industrial Processing Summit
SIPS2019 Volume 1: Angell Intl. Symp. / Molten Salt, Ionic & Glass-forming Liquids: Processing and Sustainability

Editors:F. Kongoli, M. Gaune-Escard, J. Dupont, R. Fehrmann, A. Loidl, D. MacFarlane, R. Richert, M. Watanabe, L. Wondraczek, M. Yoshizawa-Fujita, Y. Yue
Publisher:Flogen Star OUTREACH
Publication Year:2019
Pages:177 pages
ISBN:978-1-989820-00-1
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Poly(ionic liquids) as a platform for CO2 capture and transformation

    Sandra Einloft1; Franciele Bernard1;
    1PUCRS, Porto Alegre, Brazil;
    Type of Paper: Keynote
    Id Paper: 116
    Topic: 13

    Abstract:

    The largest anthropogenic contribution to climate change is the fossil fuel burning resulting in huge carbon dioxide (CO2) emissions. Reduction of CO2 emissions is imperative to mitigate environmental impacts. CO2 separation can help global warming mitigation as well as provide CO2 for other processes such as carbon capture and utilization (CCU) and enhanced oil recovery (EOR). Yet CO2 is an abundant nontoxic resource that can be used in several applications. Chemical absorption processes for CO2 capture using aqueous amine solutions have been extensively studied and used in industry for decades. They have, however, some operational drawbacks. Ionic liquids have been proposed as the next generation of solvents for a selective CO2 separation. These compounds are versatile and less harmful to the environment than conventional organic solvents. They present unique properties such as negligible vapor pressure, non-flammability, high thermal stability, and tunability (myriad of possible combinations of cations and anions). Nevertheless, these solvents suffer from high viscosity and high production costs when compared to aqueous amines solutions. Poly(ionic liquid)s (PILs) appear as an alternative to RTIL for CO2 capture and utilization. PILs represent an emerging subclass of the polyelectrolytes, were each repeating unit is ionic and connected through a polymeric backbone forming a macromolecular structure[1]. PILs combine the good features of RTILs with good mechanical stability, processing and tunable macromolecular design of polymeric material. PILs present higher CO2 sorption capacity and sorption/desorption velocity than RTIL. PILs, materials with smart designs, can be used for CO2 separation from the flue gas (CO2/N2), and natural gas purification (CO2/CH4), besides being active as catalyst for cyclic carbonate production from the reaction of CO2 and epoxide. The aim of this presentation is to give a concise overview of PILs described in literature, as well as the research published by our group[1-5]. In addition, PLIs syntheses routes, as well as the influence of PILs backbone, anions type, and modification in CO2 sorption capacity and catalyst activity will be discussed.

    Keywords:

    Materials;

    References:

    1- Einloft, S.; Bernard, F. L.; Dalla Vecchia, F. In Polymerized Ionic Liquids; Eftekhari, A., Ed.; 2017; pp 489-514.
    2- Bernard, F. L.; Polesso, B. B.; Cobalchini, F. W.; Donato, A. J.; Seferin, M.; Ligabue, R.; Chaban, V. V.; do Nascimento, J. F.; Dalla Vecchia, F.; Einloft, S. Polymer (Guildf). 2016, 102, 199-208.
    3- Magalhaes, T. O.; Aquino, A. S.; Dalla Vecchia, F.; Bernard, F. L.; Seferin, M.; Menezes, S. C.; Ligabue, R.; Einloft, S. RSC Adv. 2014, 4, 18164-18170.
    4- Bernard, F. L.; Duczinski, R. B.; Rojas, M. F.; Fialho, M. C. C.; Carreño, L. Á.; Chaban, V. V.; Vecchia, F. D.; Einloft, S. Fuel 2018, 211, 76-86.
    5- Bernard, F. L.; Polesso, B. B.; Cobalchini, F. W.; Chaban, V. V.; do Nascimento, J. F.; Dalla Vecchia, F.; Einloft, S. Energy & Fuels 2017, 31, 9840-9849.

    Cite this article as:

    Einloft S and Bernard F. (2019). Poly(ionic liquids) as a platform for CO2 capture and transformation. In F. Kongoli, M. Gaune-Escard, J. Dupont, R. Fehrmann, A. Loidl, D. MacFarlane, R. Richert, M. Watanabe, L. Wondraczek, M. Yoshizawa-Fujita, Y. Yue (Eds.), Sustainable Industrial Processing Summit SIPS2019 Volume 1: Angell Intl. Symp. / Molten Salt, Ionic & Glass-forming Liquids: Processing and Sustainability (pp. 126-127). Montreal, Canada: FLOGEN Star Outreach