|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Advanced Real Time Imaging
||Behavior of Plastic Ashes in Gasification Environments
||Jinichiro Nakano, Kristin Tippey, Anna Nakano, Hugh Thomas, Ímer Doğan
|On-Site Speaker (Planned)
Plastic upscaling/recycling is one of the most effective ways to decarbonize the chemical industries. Gasification is a chemical recycling path that enables carbon renewal at elevated temperatures by breaking waste plastics into basic constituents. Energy input may be offset by heat generation as a process byproduct. Significant energy savings in recycling plastics would be possible, not only compared to the mechanical recycling, but also to the traditional gasification because plastics carry higher heating values. This work reports ash compositions from various common plastics and their behavior at high temperatures. While most ash tends to be rich in alkaline earth metals, some such as low-density polyethylene (LDPE) and polypropylene (PP) ash indicate very high concentrations of Ti up to 95 wt.%. In-situ behavior of select ash/slag in simulated gasification environments (up to 1500 ░C in 64%CO-36%CO2) will be examined using the customized high-temperature environmental confocal scanning laser microscope.
||Energy Conversion and Storage, Recycling and Secondary Recovery,