Abstract
Biomass is an alternative renewable energy sources that can generates energy almost same as fossil fuel. The depletion sources of fossil fuel had increase the potential use of biomass energy. In Malaysia, rice husk and banana residues are abundantly left and not treated with proper disposal method which later may contribute to environment and health problems. Thus the development of biomass composite briquette made from rice husk and banana residue is one of the potential ways to reduce the problems and hence may contribute the better way to treat the waste by recycling the waste into a form of biomass product. The biomass briquettes are used for thermal applications because it can produce a complete combustion as it has a consistent quality and high burning efficiency. However, the quality of the biomass briquette can be added by application of torrefaction pre-treatment method. Torrefaction is a thermal method that can produce more high quality of the briquette with high calorific value, high fixed carbon content, low volatile matter, and low ash content. This study was conducted to assess the physical and combustion characteristic of the biomass briquette from rice husk and banana residue which was produced through torrefaction process. The biomass briquette, were densified by using hot press machine with temperature of 180°C for about 30 minutes. The briquette produce are 150 μm in particle size with varies in mixing ratio of rice husk to banana residue which are 100:0, 80:20 and 60:40. After the briquetting process, the biomass fuel briquettes have been undergoes parameter testing and the data have been analysed. Result showed the best biomass briquette is developed from torrefied rice husk and banana residue mixed at ratio of 60:40. Moreover, SEM image reveal that torrefaction pre-treatment has shrinkage the fibres size which confirming the thermal stability of the briquette.
Highlights
Biomass briquette is a biofuel replacement to lignite-coal and charcoal which usually made from agricultural waste and other organic materials
A research on combustion performance of biomass composite briquette from rice husk and banana residue had been done before and the result shows that the rice husk and banana residue with particle size of 150 μm and mixing ratio of 60:40 have a huge potential to become a commercialized product by briquetting as it meets the properties for a good fuel briquette [2]
Based on the physical and combustion performance, the biomass briquette from rice husk and banana residue which undergo torrefaction pre-treatment process exhibit more excellent potential as an alternative energy source compare to biomass briquette without torrefaction process
Summary
Biomass briquette is a biofuel replacement to lignite-coal and charcoal which usually made from agricultural waste and other organic materials. Briquette is an alternative to fossil fuel as they are renewable, non-polluting and an economic of energy source. Biomass briquette produce through briquetting process where the waste material undergo densification to produce compact compounds with the use of pressure. Briquette is ideally sized for complete combustion as it has a consistent quality and high burning efficiency. The best quality of biomass briquette depends on some factors such as the crushing strength, moisture content, density, flame propagation and ash content value. A part from that, to get a good quality of biomass composite briquette it needs low moisture content, ash content, and slow flame propagation in order to have uniform and complete combustion process.[1]
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