Upgrading of Corn Stalk Residue and Tannery Waste into Sustainable Solid Biofuel via Conventional Hydrothermal Carbonization and Co-Hydrothermal Carbonization

Upgrading of Corn Stalk Residue and Tannery Waste into Sustainable Solid Biofuel via Conventional Hydrothermal Carbonization and Co-Hydrothermal Carbonization

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DOI 10.20900/jsr20230012
刊名
JSR
年,卷(期) 2023, 5(3)
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作者单位

1 Kasetsart Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University, Bangkok 10900, Thailand;
2 Department of Chemical Engineering, School of Engineering, King Mongkut’s Institute of Technology, Bangkok 10520, Thailand;
3 Department of Mechanical Engineering, Faculty of Engineering at Kamphaeng Saen, Kasetsart University Kamphaeng Saen campus, Nakhon Pathom 73140, Thailand;
4 College of Material Innovation and Technology, King Mongkut’s Institute of Technology, Bangkok 10520, Thailand

Abstract
Hydrothermal carbonization (HTC) and co-hydrothermal carbonization (Co-HTC) are efficient thermochemical conversion processes for upgrading the fuel properties of biomass feedstocks. This study investigates the conversion of high moisture industrial waste, leather waste (LW), and agricultural residue, corn stalk (CS) into sustainable solid fuel via the HTC and Co-HTC. The impact of experimental variables, such as HTC temperature, residence time, and reaction pathway (i.e., HTC and Co-HTC process), on the physicochemical properties and fuel quality of hydrochar was also comprehensively explored. The highest heating value of hydrochar product, approximately 23.4 MJ/kg, was obtained from the Co-HTC condition of 280 °C for 8 h. The mutual interaction between two biowastes exhibited superior synergistic fuel characteristics, including lower ash content, higher carbon percentage, and improved energy density. However, the remaining ash content of hydrochar decreased by approximately 25.01%–44.52%, produced from both HTC and Co-HTC processes. The hydrothermal treatment process improved the hygroscopic properties of hydrochar. Finding results show that the HTC and Co-HTC are the potential thermochemical conversions for producing sustainable solid fuel from several biowastes. In addition, the Co-HTC process showed a better hydrochar fuel quality.
KeyWord
corn stalk; leather waste; hydrothermal carbonization; co-hydrothermal carbonization; solid biofuel
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Napat Kaewtrakulchai*,Sirayu Chanpee,Kanit Manatura,Apiluck Eiad-Ua. Upgrading of Corn Stalk Residue and Tannery Waste into Sustainable Solid Biofuel via Conventional Hydrothermal Carbonization and Co-Hydrothermal Carbonization, Journal of Sustainability Research. 2023; 5; (3). https://doi.org/10.20900/jsr20230012.

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