EXPERIMENTAL STUDY TO CONVERT MIXED ORGANIC WASTE AND UN-RECYCLED PLASTIC WASTE INTO SOLID FUEL BY APPLYING COMBINATION OF WET TORREFACTION AND BINDERLESS BRIQUETTING PROCESS

• Main Author: (NIM : 13113097), KEVIN
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/22792
• Institution: Institut Teknologi Bandung

Municipal solid waste (msw) has huge potential to meet energy needs. In the Bandung City MSW dumped into the landfill reaches 1800 tons/day. However, msw can not be utilized as a solid fuel directly because of the high water content in msw can decrease the higher heating value produced. Therefore, it is necessary to conduct pretreatment to improve the quality of municipal solid waste equivalent to solid fuel. <br /> <br /> <br /> Wet torrefaction can improve the characteristics of MSW equivalent to solid fuel using hot compressed water as medium. To improve the transportability and density of the product, furthermore the wet torefaction product is densified into briquette. In this undergraduate task, the binderless briquetting process is used because it is not going to affect the combustion characteristic of the product. <br /> <br /> <br /> According to the results of the research, the wet torefaction process at temperature of 225 oC, residence time of 30 minutes, ratio of sample to water 1:2.5, rotational speed of stirrer 275 RPM was selected to produce the highest higher heating value (HHV) for organic solid product equivalent to bituminous coal. HHV of the product was up to 6831 kkal/kg. In those parameters, briquette have the durability of Drop Shatter Index (DSI) above 95% at 750 bar briquetting pressure. However, the density of briquette has not reached the standard, which is 1000 kg/m3 due to the presence of plastic on briquette.