A method has been developed using thermoanalytical techniques for the analysis of residues from coal-burning fluidised bed
plant where limestone is used as a sulphur scavenger. This completely eliminates the need for lengthy wet chemical analyses
and allows the derivation of parameters necessary for efficient plant operation, such as limestone addition rate, calcium
utilisation efficiency and calcium to sulphur mole ratio. The method also gives values for the unburned carbon content and
the ratio of coal ash to limestone derivatives in the sample.