This paper describes the application of innovative hydrothermal technology on local municipal solid waste (MSW) to produce low chlorine content solid co-firing fuel with coal. Raw MSW was treated at temperatures ranging from 210 to 235℃ with 30 to 90 minutes holding period. The process yielded slump products which were then naturally dried to 5% moisture content, resulted in dry products with the heating value up to 24MJ/kg (dry base). Organic chlorine compound from plastic in MSW was converted to inorganic chlorine and reduced to 0.2% level. The inorganic chlorine substances were then removable by water washing at 1:8 product-water ratio (dry base) and vacuum filtration. With these features, the innovative hydrothermal treatment would then be a good alternative for MSW treatment and conversion into coal co-firing fuel.
