The distinction between proximate and ultimate analysis of coal are as follows :
|Proximate analysis of coal is an assay of the quantity of the coal.
||The ultimate analysis is the element analysis of the coal.
|The various parameter studied are percentages of moisture, volatile matter, ash and fixed carbon.
||The various parameters studies are percentages of carbon, hydrogen, sulphur, nitrogen, ash and oxygen.
|The analysis is cheap and the process is fast.
||The analysis is comparatively costly and the process is slow.
|It is used for classification, the gradation of coal and predicting its industrial use.
||It is used to find the calorific value of the coal and heat balance sheets.