DefinePK

Abstract

This research was proposed to an enviromentally fuel from syngan of corncob. The feasibility and operation performance of corncob gasification in small downdraft gasifier was studied. The concorb gasification was carried out at 30-35% of the necessary air for stoichiometric combustion (the equivalent ratio, F= ±0.35). The gasification temperature of 600-800 0C and the fire power of gasifier, FP of 5 kWth were obtained in this experiment. The syngas could be burned with a reddish blue flame like liquid petroleum gas (LPG) in conventional domestic stove. The air flow rate of 0.1-0.2 kg/min. for syngas combustion (about 50% for complete combustion) generated flame temperature of around 850 0C. The thermal efficiency and the cold gas efficiency about 40% and 70%, respectively. Economic and energy evaluation of corncob and syngas utilization was also conducted. The potential energy of waste corncob could fulfill the energy needs of the entire small industries that are located in West Bandung District. An implementation study of syngas utilization in one of the small industries for cooking fish gave the gross profit margin about IDR 15,749. The difference profit between the use of LPG and the use of syngas was about IDR 1,716 /kg fish. The utilization of waste corncob on a small industry as a pilot scale is expected to substitute the use of ±29 million kg of LPG/year.