Cited by 155Thermochemical Biomass Conversion ProcessesMunicipal Solid Waste ManagementCatalysts for Methane Reforming

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Hydrothermal carbonization of food waste for sustainable biofuel production: Advancements, challenges, and future prospects

Wu, Shuang, Wang, Qing, Fang, Minghui, Wu, Dongyang, Cui, Da, Pan, Shuo, Bai, Jingru, Xu, Faxing, Wang, Zhenye·2023·Science of The Total Environment

DOI 10.1016/j.scitotenv.2023.165327

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Abstract

With the improvement of living standards, food waste (FW) has become one of the most important organic solid wastes worldwide. Owing to the high moisture content of FW, hydrothermal carbonization (HTC) technology that can directly utilize the moisture in FW as the reaction medium, is widely used. Under mild reaction conditions and short treatment cycle, this technology can effectively and stably convert high-moisture FW into environmentally friendly hydrochar fuel. In view of the importance of this topic, this study comprehensively reviews the research progress of HTC of FW for biofuel synthesis, and critically summarizes the process parameters, carbonization mechanism, and clean applications. Physicochemical properties and micromorphological evolution of hydrochar, hydrothermal chemical reactions of each model component, and potential risks of hydrochar as a fuel are highlighted. Furthermore, carbonization mechanism of the HTC treatment process of FW and the granulation mechanism of hydrochar are systematically reviewed. Finally, potential risks and knowledge gaps in the synthesis of hydrochar from FW are presented and new coupling technologies are pointed out, highlighting the challenges and prospects of this study.

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Authors: Wu, S., Wang, Q., Fang, M., Wu, D., Cui, D., Pan, S., Bai, J., Xu, F., & Wang, Z.
Affiliations: Northeast Electric Power University (CN)
Corresponding author: Wang, Qing
ORCID: Wu, Shuang
Wang, Qing
Wu, Dongyang
Cui, Da
Pan, Shuo
Bai, Jingru
Wang, Zhenye
Venue: Science of The Total Environment
Publisher: Elsevier BV
Published: 2023-11
Volume: 897
Pages: 165327
ISSN: 0048-9697 (ISSN-L)
DOI: 10.1016/j.scitotenv.2023.165327
OpenAlex: W4383376047
Cited by: 155
References: 150
Citations by year: 2026: 22 · 2025: 61 · 2024: 56 · 2023: 16
FWCI: 3.48
Type: journal article
Language: en
Open access: closed
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
www.elsevier.com/legal/tdmrep-license (tdm)
doi.org/10.15223/policy-017 (stm-asf)
doi.org/10.15223/policy-037 (stm-asf)
doi.org/10.15223/policy-012 (stm-asf)
doi.org/10.15223/policy-029 (stm-asf)
doi.org/10.15223/policy-004 (stm-asf)
Locations: The Science of The Total Environment (publishedVersion)
PubMed (publishedVersion)
Funders: Jilin Scientific and Technological Development Program (20200403162SF, 20210203118SF, 20210508052RQ)
Topics: Physical Sciences › Energy › Fuel Technology › Thermochemical Biomass Conversion Processes
Physical Sciences › Environmental Science › Waste Management and Disposal › Municipal Solid Waste Management
Physical Sciences › Chemical Engineering › Catalysis › Catalysts for Methane Reforming
Keywords: hydrothermal carbonization, food waste, hydrochar, biofuel production, carbonization mechanism, process parameters

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Hydrothermal carbonization of food waste for sustainable biofuel production: Advancements, challenges, and future prospects

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