High-Temperature Fireside Tube Corrosion during Oxy-Fuel Combustion of Low Rank Coal

In this thesis, we have for the first time systematically studied the mechanisms related to the distinct effect of flue gas and fly ash deposition formed during the oxy-fuel combustion of low-rank coal and explored the science underpinning the solid-to-solid interaction between tube material and ash species. Moreover, this research project aims to evaluate the possibilities of fuel quality control techniques on the tube corrosion rate, under both conventional air-firing and oxy-fuel combustion conditions. Finally, long term high-temperature corrosion test and oxidation kinetics have also been measured and modelled to understand the overall tube corrosion rate, the rate-limiting steps, reaction mechanisms