A study of the volatilisation of coal sulphur during combustion under conditions similar to a blast furnace raceway

Pulverised coal injection (PCI) is used in ironmaking to replace expensive and energy intensive coke with coal, reducing overall costs greenhouse gas emissions. As the making process removes some of sulphur present utilisation PCI results admission greater levels into blast furnace. The increased could potentially lead an increase usage related hot metal removal processes. In increasingly volatile market, ability make use higher coals also both financial logistical relevance. This work aims produce a more thorough understanding transformation introduced through furnace, leading changes selection, blending, or mitigation efforts. volatilisation from four was investigated using drop tube furnace (DTF) conditions similar raceway. Chars flue gases were analysed range techniques, including X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis, wet chemistry methods. coal’s burnout found be biggest factor volatilisation. It that matter content key indicator volatility content; it influences rate burnout, availability hydrogen for formation H 2 S, reactivity produced chars. Coals contents are likely volatilise their component at shorter residence times than lower contents. bonding volatilised nascent char seen forms initial samples shown influence collected • A DTF analyse application. Coal Coal’s can heavily volatility. Raceway combustion will phase sulphur.