Abstract
This paper describes a municipal waste gasification process, by using a pyrolyzer, a reformer and a slag-melting furnace, for small and/or middle scale power-generation technology. Pyrolysis and gasification of wastes supposed to be in a gasifier were analyzed by thermogravimetry under the constant heating rate 2℃/min. Gasification of char with CO_2 and/or H_20 proceeds in the temperature range of 700-1,250℃. It was shown that the TG curves of degradation process of municipal waste and char gasification processes were well simulated by a modified volume reaction model equation. The reaction rate constants, the related activated energies and preexponential factors were determined from the model equations. We also studied a one-dimensional steady state mathematical model to simulate each furnace. The model showed to approximately predict municipal waste gasification processes.
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