Pyrolysis of food waste and food waste solid digestate: A comparative investigation

被引：60
作者：
Zhao, Juan [1 ]
Wang, Zhi [2 ]
Li, Jian [2 ]
Yan, Beibei [2 ,3 ]
Chen, Guanyi [1 ,4 ]
机构：
[1] Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Peoples R China
[2] Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China
[3] Tianjin Engn Res Ctr Bio Gas Oil Technol, Tianjin Key Lab Biomass Wastes Utilizat, Tianjin 300072, Peoples R China
[4] Tianjin Univ Commerce, Sch Mech Engn, Tianjin 300134, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2022年 / 354卷
关键词：
Food waste digestate; Pyrolytic products applications; Kinetic analysis; Nitrogen-containing pollutants; TG-FTIR; ANAEROBIC-DIGESTION; MICROWAVE PYROLYSIS; AIR GASIFICATION; CO-PYROLYSIS; NITROGEN; TRANSFORMATION; MICROALGAE; CONVERSION; RESIDUES;
D O I：
10.1016/j.biortech.2022.127191
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The effects of anaerobic digestion (AD) on pyrolysis were elaborated by comparing the pyrolysis performance of food waste (FW) and food waste solid digestate (FWSD). The pyrolysis mechanisms of FW and FWSD were revealed by experimental and kinetic analysis. The properties and potential applications of pyrolytic products from FW and FWSD were discussed. The results showed that part of organic matters of FW were consumed during AD, which altered the pyrolysis performance of FWSD. The pyrolytic gas from FW had better quality due to its higher lower heating value (LHV) (20.52 kJ/Nm(3)). The pyrolytic oil and biochar derived from FWSD showed better qualities as oil fuel and carbon-based absorbent. Pyrolysis of FWSD produced less nitrogen-containing pollutants (NCPs) indicated that AD coupled with pyrolysis is more environmental-friendly to treat FW. This study provides potential approach and theoretical guidance for the treatment and resource utilization of FW and FWSD.
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页数：10
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