Torrefaction of Sericulture Agro-Industrial Waste for Sustainable Waste-to-Resource Solutions
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View abstract on PubMed
Summary
This summary is machine-generated.Torrefaction of silkworm pupae waste produces high-quality biocoal. Lipid-extracted silkworm pupae (ESP) yield superior biofuel properties, offering a sustainable energy solution from agro-industrial residues.
Area Of Science
- Biomass Valorization
- Sustainable Energy
- Waste Management
Background
- Agro-industrial residues pose disposal challenges.
- Torrefaction offers a sustainable method for biofuel production.
- Sericulture waste is an underutilized biomass resource.
Purpose Of The Study
- To investigate the torrefaction of integral silkworm pupae (ISP) and lipid-extracted silkworm pupae (ESP).
- To assess the impact of lipid removal on biocoal properties and fuel characteristics.
- To optimize torrefaction conditions for ESP using response surface methodology.
Main Methods
- Torrefaction of ISP and ESP at varying temperatures (180-300 °C) and times (20-60 min).
- Proximate, ultimate, and calorific analyses for fuel property evaluation.
- Response surface methodology with a central composite design for process optimization.
Main Results
- ESP demonstrated superior carbon retention and energy densification compared to ISP.
- Optimized torrefaction (255 °C, 60 min) of ESP yielded biocoal with 83.13% solid yield and 22.12 MJ·kg⁻¹ HHV.
- Statistically significant models confirmed the influence of temperature and time on solid yield and HHV.
Conclusions
- Lipid-extracted silkworm pupae are suitable for biocoal production.
- Torrefaction enhances the fuel quality of sericulture waste, promoting waste reduction and value addition.
- Further research is needed for biorefining, combustion, and life cycle assessment.
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