[Research on low emission MSW gasification and melting system]

In order to eliminate the secondary pollution caused by MSW incineration, fluidized bed gasification and swirl-flow melting process is proposed which produces less emission. MSW of China can be effectively gasified in fluidized bed at about 600 degrees C. Combustion fly ash of MSW can be melted into vitrification at about 1300 degrees C and that of MSW combusted with coal can be done at about 1 400 degrees C, during which dioxins (PCDD/Fs) is decomposed over 99.99% and heavy-metals are mostly solidified. Two novel and improved MSW gasification and melting schemes are brought forward preferably: (1) The gasification and melting system based on integrated disposal of MSW. (2) The gasification and melting system of original MSW + assistant fuel. It is testified that the two schemes are suitable for China by thermo-performance analysis.