Thermal behavior and products characteristics during furfural residue co-pyrolysis with waste plastic

Pan Li, Xingguo Wu, Hai Chen, Nianxiang Qi, Kangle Yang, Wei Chen, Chun Chang, Shusheng Pang and Junhao Hu

Renewable Energy, 2025, vol. 255, issue C

Abstract: Furfural residue (FR) is a biomass waste generated during furfural production, while waste plastic is a common type of organic solid waste. In this study, co-pyrolysis of FR and polypropylene (PP) was carried out to investigate the effects of pyrolysis temperature, waste plastic mixing ratio and in-situ catalyst on product properties. It was shown that an increase in the plastic mixing ratio significantly affected the composition of gas and liquid products, with a decrease in oxygenated compounds and an increase in hydrocarbons in the pyrolysis oil. The CnHm content in pyrolysis gas increased. The hydroxyl (O-H) content in pyrolysis char decreases, and the specific surface area decreases from 375.235 m2/g to 269.569 m2/g. The largest increase in olefin content in oil is achieved at a plastic ratio of 0.6. As the pyrolysis temperature increases, the formation of hydrocarbons is promoted, and the content reaches 55.92 % at 500oC. Aromatic yield (37.5 %) and H2 yield (12.07 %) were highest with the addition of ZSM-5 catalyst, while alkane yield (24.89 %) and CO yield (15.78 %) were highest with MgO catalyst. The acid and ester content of pyrolysis oil decreased while the hydrocarbon content increased when CaO catalyst was used.

Keywords: Furfural residue; Waste plastic; Co-pyrolysis; Catalyst; Products characteristics (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:255:y:2025:i:c:s0960148125014764

DOI: 10.1016/j.renene.2025.123812

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