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Tata Steel sets up largest CDQ facility at Kalinganagar

CDQ is a heat recovery system to cool the hot coke from coke ovens

Jayajit Dash  |  Bhubaneswar 

Representative image
Representative image

has established India’s largest dry quenching (CDQ) facility capable of handling 200 tonnes per hour, at its located at the Industrial Complex in Odisha's district. 

Nippon Steel and Sumkin Engineering (NSENGI) of Japan are the supplier and technology partner of the CDQ system set up at The project was executed by

CDQ is a heat recovery system to cool the hot from ovens. It is one of the most renowned energy-efficient and environment-friendly facility in steel production, where hot removed from ovens at a temperature of approximately 1,000°C, is cooled and kept dry with inert gas. The resulting steam produced in a waste heat recovery boiler is used to generate  

As the sensible heat - which is recovered by heat transfer in the cooling chamber - is utilised as a heat source for steam generation.generated by CDQ is clean and This also cuts down dependence on for energy generation thereby increasing the resource efficiency considerably, through secondary resource management and technology infusion.

In addition, compared to the conventional wet quenching, CDQ brings about advantages such as the reduction in and improvement of quality. This environment-friendly technology would help in abating climate change. This can be done by reducing  to the extent of 0.11-0.14 tonnes per tonne of and also decreasing to the tune of 300-400 grams per tonne of The other advantages include - saving a significant amount of which is also becoming a scarce resource. 

First Published: Mon, November 06 2017. 17:34 IST
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