Analysis of Tapioca Industrial Solid Waste as Coal Substitution

Abstract

Tapioca industrial solid waste is a very abundant and high cellulose content that makes solid waste from tapioca industrial an alternative material substituted to coal. The low-calorie value of solid waste is around 2783 Kcal/kg, which requires an effort to increase calorie value—increasing the calorie value of solid waste by carbonization in the pyrolysis furnace. The study of solid waste with pyrolysis to replace coal and improve the calorie value similar to commercial coal needs to be done. In this study, the influence of time and temperature on the carbonization of solid waste was examined. The carbonization temperature was 300, 350, and 400°C, and the carbonization time was 60, 90, and 120 minutes. Solid waste was pyrolysis and analyzed for calorie value and proximate test (moisture content and ash content). The results showed that solid waste from tapioca industrial could be substituted for coal because it has a low ash content and moisture content, with a maximum ash content of 5.9% and a maximum moisture content of 1.6%. The optimal temperature and carbonization time are 350oC and 90 minutes, with the calorific value of the material produced at 6047 Kcal/kg.