Experiences in Designing Solvents for the Environment

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• 作者：Meirong Li ; Paul F. Harten ; and Heriberto Cabezas
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2002
• 出版时间：November 13, 2002
• 年：2002
• 卷：41
• 期：23
• 页码：5867 - 5877
• 全文大小：100K
• 年卷期：v.41,no.23(November 13, 2002)
• ISSN：1520-5045

文摘

Solvents used throughout industry are chosen to meet specific technological requirements suchas solute solubility, cleaning and degreasing ability, or utility as a medium for paints andcoatings. With the increasing awareness of the human health effects and environmental risksof solvent use, the replacement of current solvents with more benign alternatives has become anecessity. In this paper, we initially outline the elements of a solvent design theory, and on thebasis of this theory, we then discuss the PARIS II (Program for Assisting the Replacement ofIndustrial Solvents) solvent design algorithms and software. The PARIS II software designstechnologically effective and environmentally benign substitute solvents. We finally present anddiscuss several cases of solvent substitutes developed using PARIS II. These cases includesubstitutes for pure chemicals and mixtures involving components from a wide range of chemicalfamilies, including normal hydrocarbons, ketones, alcohols, aromatics, and organic and aqueousmixtures. These case studies show that replacement solvents can be found with consistentlylower potential environmental impacts while maintaining similar levels of technical performance.