Catalytic Pyrolysis of Single‐Use Waste Polyethylene for the Production of Liquid Hydrocarbon Using Modified Bentonite Catalyst

Abstract Bentonite has been modified using H 2 SO 4 at various concentrations to alter the Si/Al ratio that is responsible for catalytic pyrolysis of waste polyethylene. The XRF analysis confirmed a gradual decrease of Al 2 O 3 content with an increasing concentration of H 2 SO 4 . The highest liquid hydrocarbon yield (87.48 %) was obtained at a Si/Al ratio of 34.24. To further activate acid‐modified bentonite, bimetals (Cu/Ni, Fe/Ni, and Co/Ni) impregnation was conducted. The catalytic performance was compared with monometals (Ru, Co, Ni, Cu, and Fe) impregnated bentonite counterparts. The Co, Ni, or Cu impregnated bentonite catalysts (with 86, 83, and 86 % yield respectively) outperformed Fe and Ru impregnated bentonite catalysts (with 68 %…