Development of Biomass Briquettes from Mixed Pineapple Peel and Corn Cob
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Abstract
The objectives of this research were to develop biomass briquettes from mixed pineapple peel and corncob and to compare its efficiency with that of corn cob alone. The studies consisted of 2 main parts: 1) Evaluating the suitability of biomass briquettes formation and its fuel properties. The fuel properties were analyzed in accordance with the ASTM standards and the effects of the briquettes’ life cycle on environment were assessed and 2) evaluating the economic suitability of biomass briquettes production. The results showed that the heating value of the briquettes ranged from 3,607 – 3,995 kcal/kg. The percentage of moisture, ash, volatile, and fixed-carbon content were 16.55 – 18.67, 2.52 – 3.10, 64.78 – 71.22, and 8.58 – 13.45, respectively. The mixing ratio yielding the optimal fuel properties was 5:5 pineapple peel to corncob. The major environmental impacts shown from the life cycle assessment of biomass briquettes were heavy metals, acid rain, and carcinogens at 0.0156, 0.0005, and 0.0004 Pt, respectively. Economic value analysis indicated that the net present value (NPV) to be 27,522 THB with the internal rate of return (IRR) of 9.0% and payback period (PB) of 6 years and 8 months, which is economically worthwhile for the project implementation. The factor that could most risk the management and most influence the payback period was the price of the biomass briquettes.
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References
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