Coal Testing and Analysis

Coal testing and analysis, focusing on various tests that help assess the quality of coal, performance, and suitability for different industrial applications.

Need of Coal Testing Labs In India

In India, coal is the primary source of electricity. Due to its varied utility, coal never runs out of demand and is imported to other countries for its increasing energy demands. Coal is mainly categorized into four types of ranks namely lignite, sub-bituminous, bituminous, and anthracite; these four types of ranks are the outcome of the process of coalification. The ranks of the coal are determined by the degree of transformation and have different physical and chemical properties. These properties of coal are accurately verified from the testing methods, which are later used for determining characterization, commercial grading, and deciding its utilization as per need and demand.

Proximate Analysis of Coal

  • A coal testing procedure undergoes mainly two types of testing- Proximate Analysis.
  • The ‘proximate analysis’ includes the testing of Moisture, Ash, Volatile Matter, Fixed Carbon.

GCV & Sulphur Determination

  • GCV also known as higher heating value(HHV)
  • Sulphur is a key factor impacting environmental emissions and coal quality
Coal Testing

Importance of Coal Testing

  • Measures the amount of water in coal. Higher moisture content reduces energy efficiency and increases transportation costs.
  • Indicates the amount of volatile gases released when coal is heated in the absence of air. It affects combustion efficiency and flame stability.
  • Represents the non-combustible residue left after burning coal. High ash content can lead to pollution and lower energy efficiency.
  • The solid carbon remaining after volatile matter is removed. It’s crucial in determining the energy content and the efficiency of coal combustion.
  • The main component that burns to release energy. A higher carbon content increases the heating value of coal.
  • Contributes to the calorific value and affects combustion, although it's less energy-dense than carbon.
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