About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
E-35: Evaluating Fractional Crystallization Methods for Closed-Loop Recycling of End-of-Life Automotive Aluminum Sheet |
Author(s) |
Alissa Tsai, Daniel Cooper |
On-Site Speaker (Planned) |
Alissa Tsai |
Abstract Scope |
Vehicle electrification and lightweighting are leading to the growing use of wrought aluminum in vehicle design, which are subject to strict composition limits. Consequently, an impending issue in end-of-life vehicle (ELV) recycling is the high value recovery of automotive aluminum sheet. A major challenge for automotive recyclers is the efficient separation and refining of ELV scrap to improve scrap purity. One such refining technology is fractional crystallization, which our preliminary analysis suggests is cheaper and more energy efficient than existing refining technologies (e.g., Hoopes, membrane purification, low temperature electrolysis). Current methods for achieving fractional crystallization are reviewed and compared for feasibility in removing contaminant elements from ELV scrap. A linear programming model, using results from Scheil solidification simulations, is used to quantify the recycling benefits of incorporating fractional crystallization into automotive reverse supply chains. We conclude by discussing the barriers and opportunities to scaling these technologies for commercial application. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Solidification, Sustainability, Recycling and Secondary Recovery |