Optimization polyethylene plastic pyrolysis: Characterization and catalytic activity of ende natural zeolite

This study focuses on optimizing the pyrolysis of polyethylene plastic waste using Ende natural zeolite as a catalyst, activated by 7 M sulfuric acid. Activation significantly enhanced the zeolite's Si/Al ratio, total acidity, and surface area, improving its catalytic properties. Pyrolysis was conducted across temperatures ranging from 350 °C to 500 °C, with catalyst compositions of 5%, 10%, and 15%. The optimal condition was found at 400 °C with 10% catalyst, yielding the highest amount of liquid hydrocarbons suitable for fuel production. The results demonstrate that acid-activated Ende natural zeolite is highly effective in catalyzing the conversion of plastic waste into valuable hydrocarbon products. These findings contribute to developing sustainable waste management strategies by improving pyrolysis efficiency. Future research should investigate the long-term stability of this catalyst and evaluate the performance of different zeolite sources to enhance plastic waste conversion further.