An Investigation on Gasification Conversion of Municipal Solid Waste Using Fixed Bed Downdraft: Study Case of Final Processing Site TPA Putri Cempo Surakarta

The municipal solid waste (MSW) gasifier is one of the promising technologies to fulfill the energy demand of TPA Putri Cempo Surakarta. Municipal solid waste gasification is a chemical process that converts solid Municipal solid waste into useful, convenient gaseous fuel. According to the government program in presidential regulation number 35 of 2018, the acceleration of waste processing development into electric energy based on environmentally friendly technology needs to be developed. One of the technologies to convert waste into renewable energy is to use thermochemical processes of gasification. The aim of this paper is to investigate the conversion of municipal solid waste gasification (MSW) using a fixed bed downdraft gasifier by circulating the mass balance of municipal solid waste (MSW) to be converted into syngas with a variation of air-fuel ratio (AFR) of 0.1 to 1.0 and gasifier temperature at 500 - 1000°C. The result showed that the fixed bed downdraft gasifier produced syngas with the composition of CO (24.78%), CO2 (18.65%), H2 (15.6%), and CH4 (4.06%), with an AFR of 0.3 at a gasification temperature of 600°C.both.