Performance prediction of an RCFB incineration system

Incineration, in spite of being a costly option, is widely used for the tre atment and disposal of solid, liquid, and gaseous wastes. Use of fluidized beds paved the way for less polluting incinerators. Circulating fluidized b ed systems can burn low-heat-content watery wastes without (or with minimum ) auxiliary fuel. Equations of hunt transfer and heat balance for different zones of a recirculating fluidized bed (RCFB) incineration system are pres ented along with a computational procedure to predict the performance detai ls of the system. The method presented is applied to compute the performanc e of an RCFB incineration system burning distillery spent wash. Results sho w that RCFB incinerators are capable of burning a spent wash of solids cont ent considerably lower than 60%. The incineration units in operation at pre sent concentrate spent wash to about 60% solids content in external evapora tors for autogenous burning. This costly and difficult operation can be min imized by the use of RCFB for incineration.