Effects of oxygen concentration and coal composition on aerosol chemistry in oxy firing

Outline: 1) Objectives 2) Coals examined 3) Furnace, sampling, and analysis 4) Results 5) Conclusions. The objectives of the presentation is to provide a comparison of three different coal aerosols under two different oxy fired scenarios for predicting effects of coal composition on oxy firing. Examine aerosol chemistry under two different oxy fired scenarios: 27% O2 (~match heat flux of air) and 32% O2 (~match adiabatic flame temperature of air). Use aerosol chemistry to provide information for those who wish to make predictions of fouling/slagging within the furnace. Determine whether there are any significant differences in aerosol chemistry at varying O2 concentrations at conventional temperatures.