Investigation of gaseous emissions and ash deposition in a pilot-scale PF combustor co-firing cereal co-product biomass with coal

This study presents the results of investigations into the gaseous emissions and ash deposition characteristics from combustion of Cereal Co-product mixed with coal in a 100 kWth pulverised fuel combustor. Combustion gas emission samples for CO2 , O2 , H2O, SO2 , CO, NO, NO2 , N2O, HCl, HF, were obtained on-line by a high resolution multi-component Fourier Transform Infra-Red gas analyser. Ash deposit samples were collected from the flue gas using three air-cooled probes that simulate heat exchanger tubes with surface temperatures of 500, 600 and 700 °C. The deposits formed were analysed using SEM/EDX and XRD techniques to assess their corrosion potential.