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Bio-oil from cassava peel: a potential renewable energy source
Ong Lu Ki1, Alfin Kurniawan, Chun Xiang Lin
1Department of Chemical Engineering, Widya Mandala Surabaya Catholic University, Kalijudan 37, Surabaya 60114, Indonesia.
Bioresource Technology
|March 5, 2013
Summary
Cassava peel pyrolysis yields significant bio-oil. Optimal temperature of 525°C maximizes bio-oil production, offering a promising renewable energy source with a calorific value of 27.43 MJ/kg.
Area of Science:
- Biomass conversion and renewable energy technologies.
- Thermochemical conversion processes.
Background:
- Cassava peel is an abundant agricultural waste with potential for biofuel production.
- Pyrolysis offers a viable method for converting biomass into valuable liquid fuels.
Purpose of the Study:
- To optimize the production of liquid biofuel (bio-oil) from cassava peel through pyrolysis.
- To analyze the chemical composition and energy content of the produced bio-oil.
- To model the kinetics of the pyrolysis process.
Main Methods:
- Isothermal pyrolysis of cassava peel in a fixed-bed tubular reactor.
- Temperature range: 400-600°C; heating rate: 20°C/min.
- Chemical composition analysis using gas chromatography-mass spectrometry (GC-MS).
Main Results:
- Maximum bio-oil yield of approximately 51.2% achieved at 525°C.
- The produced biofuel exhibits a gross calorific value of 27.43 MJ/kg.
- A kinetic-based mechanistic model accurately predicted pyrolysis product yields (R² > 0.95).
Conclusions:
- Temperature is the most critical factor for optimizing bio-oil yield from cassava peel pyrolysis.
- Cassava peel is a suitable feedstock for producing high-yield bio-oil with significant energy content.
- The developed kinetic model provides a reliable tool for understanding and optimizing the pyrolysis process.
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