| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Pyrolysis of Waste Printed Circuit Boards: Optimization Using Response Surface Methodology and Characterization of Solid Product |
| Author(s) |
Kurniawan Kurniawan, Sookyung Kim, Jae-chun Lee |
| On-Site Speaker (Planned) |
Kurniawan Kurniawan |
| Abstract Scope |
Recovery of precious and valuable metals from WPCBs faces challenge due to heterogeneous mixture of organic substrates and metal sheets. Thermal treatment, pyrolysis, is considered a promising and efficient process to ease the separation of organic substrates and metals by transforming the organic substrates into high calorific products of oil and gases. In this work, pyrolysis of WPCBs are evaluated while investigating the effects of parameters, such as temperature, heating rate and N2 flow rate. The pyrolysis process was optimized using response surface methodology with a central composite design (CCD). The results showed that a quadratic model explained adequately the non-linear behavior of the modeled response with an R^2 value of 0.987, indicating a sufficient adjustment of the model with the experimental data. The optimal conditions were determined, and solid product generated was comprehensively characterized. Also, enrichment of metals after pyrolysis was discussed to develop the metal recovery process. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |