FOOD WASTE VALORIZATION: A STUDY OF BIOGAS-FUELED SOFC/MGT HYBRID SYSTEM FOR JAKARTA’S ELECTRICITY GENERATION

Abstract

Every day, around 3,300 tons of food waste is generated in Jakarta. The amount of food waste has increased during the COVID-19 pandemic. Left unutilized, the decay of food waste, which produces methane, will simply contribute to greenhouse gas emissions. Alternatively, based on literature study, methane can be used for electricity generation using fuel cell. The process starts with food waste decomposing into biogas containing methane in an anaerobic digester. The yielded biogas is fed to the reforming process to produce hydrogen, which fuels the Solid Oxide Fuel Cell (SOFC). The SOFC is integrated with micro gas turbines (MGT) for combined heat and power generation. Using 190 kg food waste per day, this hybrid system can generate 2.5 MW, powering approximately 3,000 households. This method is a way to achieve affordable and clean energy, responsible production and consumption, climate action and sustainable cities and communities especially in Jakarta