(116b) Early Career Award Winner Presentation: "Enabling Solvent Recovery and Reuse via Systems Engineering and Synergistic Industry-Academia Collaborations"
AIChE Annual Meeting
Monday, November 14, 2022 - 1:15pm to 1:45pm
Thus, a systematic framework that employs Process Systems Engineering (PSE) principles, as well as data and timely inputs from Industrial Partners, has been developed to handle wastes from solvent-consuming industries. This Solvent Recovery framework considers multiple alternative recovery and purification technologies simultaneously through a superstructure-based optimization approach , . The technologies are represented as mathematical models, which include material and energy balances, utility requirements, design, and operational constraints, as well as sustainability metrics of SPI (Sustainable Process Index)  and Emergy . The recovery of solvents from multi-component waste streams is modeled as MINLP (Mixed-Integer NonLinear Programming) problem  and the competing objectives of minimizing costs and maximizing process sustainability are handled via the goal programming  approach. The results from our work suggest that selecting solvent recovery options require lower costs in comparison to typical incineration and reduce the emission of harmful substances into the environment. Furthermore, a user-friendly software tool that can assess solvent-containing industrial waste streams and predict the best solvent recovery pathways is also developed. This tool could be highly beneficial to pharmaceutical and chemical industries and can lead to better recycling and reuse practices.
In addition to this, a brief overview of the other ongoing projects in our Sustainable Design & Systems Medicine Lab  including wastewater treatment, asset management, petroleum pipeline operations, and plastics recycling will be presented. The benefits of synergistic collaborations with industries and government agencies are highlighted in all our projects.
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