Ideally, a high grade coal has a very low moisture content, volatile matter of less than 14% and a fixed carbon content of more than 86%. Proximate analysis in coal involves the quantification of moisture, amount of volatiles, total carbon and ash contents. In the conventional methods, each of these parameters is analyzed in a separate technique which is tedious and time-consuming. The use of thermogravimetry is an effective means of solving these drawbacks and is able to perform proximate analysis in a single measurement. In this application, proximate analysis in coal is performed using sample observation TG-DTA.
AppNote TA1005: Proximate analysis of coal