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Are ionic liquids eco-friendly?

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  • de Jesus, Sérgio S.
  • Maciel Filho, Rubens

Abstract

Ionic liquids are molten salts that have excellent chemical and thermal stability. Because they have qualities inherent to some precepts of green chemistry, they are identified as a potential substitute for traditional organic solvents. These useful physical and chemical properties have led to several promising applications in renewable energy technologies. Despite being classified as green solvents, these neoteric solvents present a number of problems related to their synthesis, toxicity and biodegradability, making their use questionable environment-wise. In this review, we analyzed the processes of synthesis, recovery and recycling, toxicity and biodegradability of different ionic liquids. A comparative analysis with some fossil-based solvents and organic-based green solvents was also undertaken. Through the construction of synthesis trees, it was found that all ionic liquids analyzed presented some problematic stage, mainly due to the use of volatile compounds containing C, N, S and halogens. On the other hand, several eco-friendly methodologies have been used for recovery and recycling, such as ultrafiltration and water extraction. One of the main critical points is related to toxicity and biodegradability, as most ionic liquids currently used are toxic and poorly biodegradable or non-biodegradable. Due to their infinite combination, computational modeling studies combined with life cycle assessment studies may, in the future, design new eco-friendly ionic liquids that largely comply with the 12 principles of green chemistry.

Suggested Citation

  • de Jesus, Sérgio S. & Maciel Filho, Rubens, 2022. "Are ionic liquids eco-friendly?," Renewable and Sustainable Energy Reviews, Elsevier, vol. 157(C).
    • Handle: RePEc:eee:rensus:v:157:y:2022:i:c:s1364032121013010
    DOI: 10.1016/j.rser.2021.112039
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    References listed on IDEAS

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    1. de Jesus, Sérgio S. & Ferreira, Gabriela F. & Moreira, Larissa S. & Filho, Rubens Maciel, 2020. "Biodiesel production from microalgae by direct transesterification using green solvents," Renewable Energy, Elsevier, vol. 160(C), pages 1283-1294.
    2. Liu, Chun-Zhao & Wang, Feng & Stiles, Amanda R. & Guo, Chen, 2012. "Ionic liquids for biofuel production: Opportunities and challenges," Applied Energy, Elsevier, vol. 92(C), pages 406-414.
    3. de Jesus, Sérgio S. & Filho, Rubens Maciel, 2020. "Recent advances in lipid extraction using green solvents," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    4. Ullah, Zahoor & Bustam, M. Azmi & Man, Zakaria & Khan, Amir Sada & Muhammad, Nawshad & Sarwono, Ariyanti, 2017. "Preparation and kinetics study of biodiesel production from waste cooking oil using new functionalized ionic liquids as catalysts," Renewable Energy, Elsevier, vol. 114(PB), pages 755-765.
    5. Sun, Yingqiang & Xu, Chunyan & Igou, Thomas & Liu, Peilu & Hu, Zixuan & Van Ginkel, Steven W. & Chen, Yongsheng, 2018. "Effect of water content on [Bmim][HSO4] assisted in-situ transesterification of wet Nannochloropsis oceanica," Applied Energy, Elsevier, vol. 226(C), pages 461-468.
    6. Lynnette A. Blanchard & Dan Hancu & Eric J. Beckman & Joan F. Brennecke, 1999. "Green processing using ionic liquids and CO2," Nature, Nature, vol. 399(6731), pages 28-29, May.
    7. Badgujar, Kirtikumar C. & Wilson, Lee D. & Bhanage, Bhalchandra M., 2019. "Recent advances for sustainable production of levulinic acid in ionic liquids from biomass: Current scenario, opportunities and challenges," Renewable and Sustainable Energy Reviews, Elsevier, vol. 102(C), pages 266-284.
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