The co-hydrothermal conversion of kitchen waste and lignocellulosic biomass solid waste into bio-oil holds the potential to revolutionize the production of multi-source biomass hydrothermal bio-oil. In this study, the interaction between kitchen waste and agricultural solid waste during the hydrothermal conversion process was investigated, focusing on the yield and properties of the resulting bio-oil, the obtained bio-oil was characterized. Results reveal that the Maillard reaction plays a pivotal role in influencing the production of hydrothermal bio-oil during the co-hydrothermal conversion process. Proteins and amino acids , in particular, exhibit a strong promotional effect on the generation of hydrothermal bio-oil. The introduction of kitchen waste did not significantly change the chemical and elemental composition of the bio-oil derived from agricultural solid waste. However, the specific content of compounds within the hydrothermal bio-oil varied widely. When compared to single-component hydrothermal bio-oils derived from lignin, cellulose , and hemicellulose respectively, the addition of kitchen waste resulted in a notable enhancement of the bio-oil's overall calorific value and a reduction in its oxygen content. The findings of this study have the potential to pave the way for sustainable and economically viable processes for multi-source biomass hydrothermal bio-oil preparation.
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Yu et al. (2024) studied this question.
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