Abstract
NKK-type high-temperature gasifying and direct-melting process have technology for the treatment which is not only high heat value solid waste, but also no heat value solid waste like incinerator ash. In this time in our pilot plant, we treated high heat value solid waste of waste plastic, refuse derived fuel, separated plastic from municipal solid waste. Gas component for waste plastic treatment is heat value of 1,610 kcal/Nm3,recovery rate of the heat quantity reached 70%. In case of the treatment of high heat value solid waste, tar is not so mach concluded In the gas, and sulfide or nitride component in the gas is nearly equal to the treatment of municipal solid waste. It is estimated that gas heat value for waste plastic treatment enable to increase to 2,500 kcal/Nm3 with more less air rate.
