Comparison of Different boiler tube materials and the corrosion resistance in burning of municipal waste

The aim of this paper is to investigate the corrosion risks in burning of pretreated municipal waste as additional fuel together with bark in a fluidized-bed boiler. It was deduced that the burning of bark alone did not cause corrosion in the materials tested. When the waste was burnt the corrosion of steels was insignificant when providing that the surface temperature of material was below 300°C. When the surface temperature was over this temperature, the burning of municipal waste caused corrosion in the conventional boiler steel. The stainless steels were not corroded even in these conditions. The impact of waste combustion on flue gas releases was also studied.