This document discusses the analysis of coal samples to determine quality. There are two types of coal analysis: proximate analysis and ultimate analysis. Proximate analysis evaluates the yield of products from heating coal under controlled conditions, such as volatile matter, fixed carbon content, and ash amount. This determines the performance of thermochemical conversion processes. Excess moisture in coal is undesirable as it lowers the calorific value, quenches furnace fires, and increases transport costs. The document defines various coal analysis terms and provides formulas for calculating properties like moisture, volatile matter, ash, and fixed carbon content.

1.  Origin-:
 Weende experimental station Germany 1865
 Henneberg & Stohmann 1865 Ad.
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2.  Home-:for use Heat & Cooking.
 Transportation -: Steam Engines.
 Heavy Industries-: Metal Works.
 Electricity-: Power Plant.
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3.  Analysis of Coal Sample is required to access the
quality of Coal -:
There are two type’s of coal Analysis-:
1. Proximate analysis of Coal
2. Ultimate analysis of Coal
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4. Evaluation of the Yield of various products obtained upon
heating under controlled condition.
In deterring the Performance of any Thermo Chemical conversion
Process.
Volatile Matter
Fixed Carbon Content
Amount of Ash
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Meaning
Important
Used to Determine the

5.  Excess of Moisture is undesirable in coal.
 It Lowers the effective calorific value of the
coal.
 Presence of Moisture Quenches the fire in
the furnace.
 Presence of Moisture increases the transport
cost & cause difficulty in heating.
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6.  TM-: Total Moisture
 FC-: Fixed Carbon
 SM-: Surface Moisture
 RM-: Room Moisture
 IM-: Internal Moisture
 VM-: Volatile Matter
 BA-: Bottom Ash
 FA-: Fly Ash
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7. Initial Weight- Final Weight X100
SM =
Volume of Sample
Initial Weight- Final Weight X100
RM =
Volume of Sample
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8. 100-SM
TM = X RM + SM
100
Initial Weight- Final Weight X100
IM = Volume of Sample

9. Initial Weight- Final Weight X100
VM = - IM
Volume of Sample
Final Weight- Starting Weight X100
ASH =
Volume of Sample

10. Initial Weight- Final Weight X100
BA =
Volume of Sample
Initial Weight- Final Weight X100
FA=
Volume of Sample

11. FC = 100- (IM+ASH+VM)
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