Corrosion environment of waste-to-energy boilers

In most WTE plants, steam conditions of 300-450°C/2.9-5.8 MPa as shown in Fig. 19.1 are adopted to avoid corrosion damage to boiler tubes and to ensure stable operation. Due to increasing enviromnental concerns arising 

Strict pollution regulation low O2 operation, high temperature of combustion chamber, etc., to prevent generation of NO i. and dioxins. 

Energy saving and effective utihzation of waste heat severe corrosion enviromnent due to improvement of heat efficiency such as high temperature and high pressure (400-500°C/3.9-9.8 MPa) of boilers, etc. 

Minimization of waste products need to reduce volume of ash and to produce non-polluting ash, leading to the development of next-generation plants, such as pyrolysis gasification-melting furnaces, oxygen-enriched combustion, etc. 

Improved cost performance reducing cost of operation and advances in maintenance-free operation, such as advanced combustion control and 

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