The chlorine content analysis of the raw MSW and the hydrothermally
treated products were differentiated by form (solid or liquid)
and chlorine type (organic or inorganic). For dry solid
material, the total chlorine content analysis was performed according
to the Japanese standard JISM8813, ‘‘Methods for Coal and
Cokes Elements Analysis’’ by using the Eschka method; whereas
the organic and inorganic chlorine contents were obtained by first
washing one part solid with 40 parts pure water, then continuing
with vacuum filtration. The organic chlorine content in the residual
solid was then analyzed by the Eschka method, whereas the inorganic
chlorine content was obtained by the potentiometric titration
method.