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Low Ash Metallurgical Coke (MetCoke)
Hard Coke is actually end product, commonly known as Low Ash Metallurgical Coke. It finds useful applications in steel plants, foundries, blast furnaces, soda Ash manufacturing, Graphite industry & other chemicals. The raw material for making hard coke is Low Ash Coking Coal sourced mainly from Australian, Chinese and USA coal mines.
COKE SPECIFICATIONS
(+ / -1 % in the above specifications permitted. Size and specifications are indicative based on the present market. We have the capability to manufacture size to suit customer requirement. Storage factor of Coke is :-
- Advantage for Blast Furnaces: are low coke rate, guaranteed, Ash, sulphur and phosphorus, high fixed carbon and low volatile matter and good size gradation.
- Advantages in Foundry Cupolas: are high metal to coke ratio, high metal temperature, high carbon pick up and good size gradation.
- Advantages in Ferro Alloys are high FC, less consumption per ton of output and good size gradation.
The superior quality in terms of CRI and CSR is produced as a result of the relatively higher operating temperatures and longer coking cycle.
A special feature of the technology is the extremely low levels of air pollution achieved as the ovens operate under negative pressure and at a temperature at which all potential pollutants are broken down into combustible compounds.
The bi-product of this technology is clean electrical energy.
Austral coke is designed for the requirements of the foundries, blast furnaces, zinc smelters, cement and the Ferro alloy industry and offers advantages like consistency in quality, sizing and uniform temperature thereby reducing cold spots and metal wastage.
The producers of Metcoke in India may be broadly categorized in three groups.
- Those who are primarily integrated steel plants such as TISCO, Rashtriya Ispat Nigam Limited and SAIL who captively consume the Metcoke they produce, as well as resort to large scale imports from other countries including Japan.
- Stand-alone Metcoke producers who produce Metcoke from imported Low Ash Coal, and stand-alone small scale sector producers located in Bihar, Bengal and Jharkhand, who are represented by Industries and Commerce Association (ICA). The latter generally uses Indian coal to produce Metcoke and by and large produces Metcoke having an ash content of above 18%
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