Green and Sustainable Solvents in Chemical Processes
Top Cited Papers
Open Access
- 4 January 2018
- journal article
- review article
- Published by American Chemical Society (ACS) in Chemical Reviews
- Vol. 118 (2), 747-800
- https://doi.org/10.1021/acs.chemrev.7b00571
Abstract
Sustainable solvents are a topic of growing interest in both the research community and the chemical industry due to a growing awareness of the impact of solvents on pollution, energy usage, and contributions to air quality and climate change. Solvent losses represent a major portion of organic pollution, and solvent removal represents a large proportion of process energy consumption. To counter these issues, a range of greener or more sustainable solvents have been proposed and developed over the past three decades. Much of the focus has been on the environmental credentials of the solvent itself, although how a substance is deployed is as important to sustainability as what it is made from. In this Review, we consider several aspects of the most prominent sustainable organic solvents in use today, ionic liquids, deep eutectic solvents, supercritical fluids, switchable solvents, liquid polymers, and renewable solvents. We examine not only the performance of each class of solvent within the context of the reactions or extractions for which it is employed, but also give consideration to the wider context of the process and system within which the solvent is deployed. A wide range of technical, economic, and environmental factors are considered, giving a more complete picture of the current status of sustainable solvent research and development.Funding Information
- Engineering and Physical Sciences Research Council (EP/K038648/1)
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