Study of The Influence of Cellulose and Lignin Decomposition upon Municipal Solid Waste Torrefaction Product Calorific Value

• Main Author: Dwi Putra , Rafiandy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/33635
• Institution: Institut Teknologi Bandung

Municipal solid waste (MSW) torrefaction between 200?C till 300?C has been perfomed before. That torrefaction only decomposes hemicellulose perfectly, meanwhile there are two more dominant components, like cellulose and lignin. Therefore, research about the influence of cellulose and lignin in torrefaction process must be performed. This research uses leaf, branch, banana peel, orange peel, and rice as the research’s objects. Mass degradation characteristic test is perfomed with thermogravimetry to observe those MSW components characteristic while torrefaction process. The torrefaction experiment and calorific value test are performed to explain about the inluence of cellulose and lignin to calorific value. MSW components calorific test results shows that banana peel, branch, and rice tend to be increasing while the temperature increase, orange peel tend to be stagnan and leave is decreasing. The decrease in leaf calorific value caused by limited combustion reaction while torrefaction is happening. Because of this phenomena, 5.9%db fixed carbon is allegedly burned. MSW components experiment results are used as reference in MSW simultaneous toreffaction. The optimum torrefaction temperature in this research is 360?C. The maximum calorific value is 5545 kkal/kg, which is equal with subbituminous B coal. The calorific value of this research torrefaction product is lower that the previous research product..