LAUSR

High amount of solid wastes are produced because of growing consumption of coconut water. Such biomass wastes should be recycled for reducing the accumulation of trash, adding value to the supply chain and generating profits. Steam gasification of these wastes may be a promising process to increase the H 2 and decrease CO, CH 4 and CO 2 content in fuel gas. The present work demonstrates an alternative process for gasification of unripe coconut husk to yield hydrogen-rich fuel gas using humidified air. The effect of various parameters like gasification temperature, equivalence ratio, humidity of air and size of the unripe coconut husk on fuel gas composition was studied. The unripe coconut husk was analyzed with TGA, CHNS, FTIR, and ED-XRD techniques. Furthermore, fuel oil was also accessed with FTIR and GC-MS analysis. Moles of H 2 in fuel gas was found to increase from 7.67 to 10.26 for air and humidified air gasification, respectively at relative humidity of 95% and gasifying temperature 800 °C.