banner-1 Hon. Minister of Steel Sh. Narendra Singh Tomar
माननीय इस्पात मंत्री, श्री नरेंद्र सिंह तोमर
banner-1 Hon. Prime Minister of India
भारत के माननीय प्रधानमंत्री जी
banner-1 Hon. Minister of State for Steel Sh. Vishnu Deo Sai
माननीय राज्य इस्पात मंत्री, श्री विष्णु देव साई

Categories

Coking Coal

Coking Coal

 

  1. Prime Coking - Mainly used for metallurgical purpose.
  2. Medium Coking - Mainly used in steel industry.
  3. Semi Coking - Mainly in cement, fertilizer and sponge iron industries

 Coking coal is best if it has a very narrow range of volatility and plasticity. This is measured by the free swelling index test. Volatile content and swelling index are used to select coals for coke blending as well.
Volatility is also critical for steel-making and power generation, as this determines the burn rate of the coal. High volatile content coals, while easy to ignite often are not as prized as moderately volatile coals; low volatile coal may be difficult to ignite although it contains more energy per unit volume. The smelter must balance the volatile content of the coals to optimize the ease of ignition, burn rate, and energy output of the coal.