Low temperature co-pyrolysis of food waste with PVC-derived char: Products distributions, char properties and mechanism of bio-oil upgrading

Chuan Peng, Wei Feng, Yanhui Zhang, Shifeng Guo, Zhile Yang, Xiangmin Liu, Tengfei Wang and Yunbo Zhai

Energy, 2021, vol. 219, issue C

Abstract: The main components of municipal solid waste (MSW) include food waste (FW) and polyvinyl chloride (PVC), which present an opportunity to convert energy or value-added products through low-temperature synergetic pyrolysis. In this study, the characteristics of char and bio-oil derived from MSW, FW and PVC feedstocks via pyrolysis at relatively low temperatures (200–300 °C) for 60 min were investigated. The results revealed that the transformation of PVC to HCl gas production started at a temperature of ＞ 200 °C. The oxygenated carbon groups on the char surface were decomposed at elevated reaction temperatures. The relative molecular mass of bio-oil derived from FW increased when PVC-derived char was used as a catalyst at 250 °C. In addition, active functional groups and pore structures were formed through synergistic pyrolysis. This work provides information regarding the possible route underlying the network of char and bio-oil production from the synergistic conversion of FW and PVC-derived char.

Keywords: Food waste; Polyvinyl chloride; Co-pyrolysis; Renewable energy; Synergistic effect (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:219:y:2021:i:c:s0360544220327778

DOI: 10.1016/j.energy.2020.119670

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