Citation:

Harten, P., T. Martin, M. Gonzalez, AND D. Young. The software tool to find greener solvent replacements, PARIS III. Environmental Progress & Sustainable Energy. American Institute of Chemical Engineers, New York, NY, 39(1):13331, (2020). https://doi.org/10.1002/ep.13331

Impact/Purpose:

The purpose of this article is to describe to scientists and engineers how the PARIS III Solvent Substitution Software operates, and to give examples of less harmful replacement solvents found for five toxic solvents used by industry.

Description:

PARIS III (Program for Assisting the Replacement of Industrial Solvents III, Version 1.4.0) is a pollution prevention solvent substitution software tool used to find mixtures of solvents that are less harmful to the environment than the industrial solvents to be replaced. By searching extensively though hundreds of millions of possible solvent combinations, mixtures that perform the same as the original solvents may be found. Greener solvent substitutes may then be chosen from those mixtures that behave similarly but have less environmental impact. These extensive searches may be enhanced by fine-tuning impact weighting factors to better reflect regional environmental concerns; and by adjusting how close the properties of the replacement must be to those of the original solvent. Optimal replacements can then be compared again and selected for better performance, but less environmental impact. This method can be a very effective way of finding greener replacements for harmful solvents used by industry.

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