[2F11-2F16] Plastic recycle (2)

[2F13] Catalytic decomposition of polypropylene in heavy hydrocarbon solvents

○Mahiro Matsushita¹, Tohru Kamo², Motomu Sakai³, Masahiko Matsukata^1,2,4 (1. Department of Applied Chemistry, Waseda University, 2. Research Organization for Nano & Life Innovation, Waseda University, 3. Faculty of Advanced Science and Engineering, Waseda University, 4. Advanced Research Institute for Science and Engineering, Waseda University)

Keywords:Chemical recycling, Zeolite Beta, Hydrocarbon solvents

We focused on chemical recycling as one of the recycling methods and aimed to convert waste plastics into petrochemical feedstock. We dissolved the waste plastics in hydrocarbon solvents to improve fluidity and remove undesirable substances and then performed catalytic decomposition. The heavy hydrocarbon solvents used were obtained from petroleum refining processes. Polypropylene (PP) was used as the plastic, and Beta zeolite was selected as the catalyst. We considered the effect of different types of hydrocarbon solvents on the PP conversion and the differences in decomposition products.