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Tata Steel has commissioned a Coke Dry Quenching (CDO) facility with a capacity of 200 tonnes per hour, at its greenfield steel plant at the Kalinganagar Industrial Complex in Jajpur district of Odisha.
The facility has a heat recovery system to cool the hot coke. It is an energy-efficient and environment-friendly facility in steel production where hot coke removed from coke ovens at about 1,000 degree Celsius is cooled and kept dry with inert gas.
The steam produced in the process is captured in the waste heat recovery boiler to generate electricity, the company said in a statement on Monday.
The electricity generated by CDQ is clean and also cuts down dependence on natural resources for energy generation thereby, increasing the resource efficiency considerably.
In addition, compared to the conventional wet quenching, CDQ brings about advantages such as reduction in dust emission and improvement of coke quality.
This environment-friendly technology will help in abating climate change by reduction in carbon-dioxide emission to the extent of 0.11-0.14 tonnes per tonne of coke and reduction in dust emission to the tune of 300-400 gm per tonne of coke.
The other advantages include saving water which is also becoming a scarce resource, it added.
Nippon Steel and Sumkin Engineering of Japan were the supplier and technology partner of the CDQ system and the project was executed by Essar Projects.
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