Abstract
Polyethylene (PE) and polypropylene (PP) are typical plastic waste. At present, there are mainly four methods of treatment: landfill, incineration, recycling, and thermal pyrolysis. Compared with thermal cracking, the advantages of catalytic cracking are mainly reflected in lower reaction temperature, faster reaction rate, and higher yield of pyrolysis target products. In this study, HDPE/PP was catalyzed by three kinds of catalysts. The high-temperature treatment and acid–alkali leaching were used to change textural properties and acid sites attribution of zeolite. It was found that the acidity density affected the gas and liquid yield, but the existing form of coke deposits changed due to the difference in adsorption. Besides, the pore structure has an obvious effect on acidity retention and catalytic cycling stability. Compared with pore structure, the distribution of acidity obviously has a larger impact on the distribution of product yield.
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References
Canopoli L, Coulon F, Wagland ST (2020) Degradation of excavated polyethylene and polypropylene waste from landfill. Sci Total Environ 698:134125.1–134125.8
Achillas DS, Roupakias C, Megalokonomos P et al (2007) Chemical recycling of plastic wastes made from polyethylene (LDPE and HDPE) and polypropylene (PP). J Hazard Mater 149(3):536–542
Kiran Ciliz N, Ekinci E, Snape CE (2004) Pyrolysis of virgin and waste polypropylene and its mixtures with waste polyethylene and polystyrene. Waste Manage 24(2):173–181
Liu J et al (2006) Assessment of the hazards of domestic plastic waste and its management policies. J Environ Health 23(4):348–50
Zhou C, Fang W, Xu W et al (2014) Characteristics and the recovery potential of plastic wastes obtained from landfill mining. J Clean Prod 80(10):80–86
Aguado J, Serrano DP, Escola JM (2008) Fuels from waste plastics by thermal and catalytic processes: a review. Ind Eng Chem Res 47(21):7982–7992
Yang Z, Fan L, Zhang H et al (2020) Is incineration the terminator of plastics and microplastics?. J Hazard Mater, 123429
Shen M, Hu T, Huang W et al (2021) Can incineration completely eliminate plastic wastes? An investigation of microplastics and heavy metals in the bottom ash and fly ash from an incineration plant. Sci Total Environ 779:146528
Jeswani H, Krüger C, Russ M et al (2021) Life cycle environmental impacts of chemical recycling via pyrolysis of mixed plastic waste in comparison with mechanical recycling and energy recovery. Sci Total Environ 769(1):144483
Soto JM et al (2018) A real case study of mechanical recycling as an alternative for managing of polyethylene plastic film presented in mixed municipal solid waste. J Cleaner Prod 203:777–87
Ragaert K, Delva L, Van Geem K (2017) Mechanical and chemical recycling of solid plastic waste. Waste Manag 69:24–58
Goto M (2009) Chemical recycling of plastics using sub- and supercritical fluids. J Supercrit Fluids 47(3):500–507
Oliveux G, Bailleul JL, Salle E (2012) Chemical recycling of glass fibre reinforced composites using subcritical water. Compos A Appl Sci Manuf 43(11):1809–1818
Songip AR, Masuda T, Kuwahara H et al (1993) Test to screen catalysts for reforming heavy oil from waste plastics. Appl Catalysis b-Environ 2(2–3):153–164
Almustapha N, Farooq M, Mohammed ML et al (2019) Modification of acidic and textural properties of a sulphated zirconia catalyst for efficient conversion of high-density polyethylene into liquid fuel. Environ Sci Pollut Res 27(11)
Zhao Y, Wang W, Jing X et al (2020) Catalytic cracking of polypropylene by using Fe-SBA-15 synthesized in an acid-free medium for production of light hydrocarbon oils. J Analyt Appl Pyrolys 146(1–2):104755
Park JW, Kim J-H, Seo G (2002) The effect of pore shape on the catalytic performance of zeolites in the liquid-phase degradation of HDPE. Polymer Degrad Stab 76:495–501
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Wang, X., Wang, C., Wang, X., Li, J. (2022). Catalytic Pyrolysis of Polyethylene and Polypropylene Over Y Zeolite. In: TMS 2022 151st Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-92381-5_51
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DOI: https://doi.org/10.1007/978-3-030-92381-5_51
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