[1D08-17] Plastic recycles

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)Japanese

[1D14] Effect of mesopores on zeolite-catalyzed polypropylene decomposition in hydrocarbon solvents

○Kensei Miura¹, Tohru Kamo³, Motomu Sakai², Masahiko Matsukata^1,3,4 (1. Department of Applied Chemistry, Waseda University, 2. Faculty of Advanced Science and Engineering, Waseda University, 3. Research Organization for Nano & Life Innovation, Waseda University, 4. Advanced Research Institute for Science and Engineering, Waseda University)

Keywords:

zeolite,polypropylene,chemical recycle

One approach to plastic recycling, known as chemical recycling, aims to recover petrochemical feedstocks from waste plastics efficiently. To improve fluidity and remove impurities, waste polypropylene (PP), as a representative polyolefin, was dissolved in a hydrocarbon solvent, light gas oil (LGO), followed by catalytic cracking. Various zeolite catalysts—Beta, alkali-treated Beta, USY, and ZSM-5—were employed to examine the role of mesopores in the catalytic decomposition of PP. This study focused on the relationship between catalyst structure and cracking performance, providing insight into effective conversion pathways for waste plastics.