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Efficient way to use of non-coking coals in non-recovery coke making process

Published online by Cambridge University Press:  26 June 2014

H.P. Tiwari ,
P.K. Banerjee ,
V.K. Saxena ,
R. Sharma ,
S.K. Haldar  and
S. Verma
H.P. Tiwari
Affiliation:
Researcher, Raw Material & Coke Making Research, R&D, Tata Steel Ltd., 831001 Jamshedpur, Jharkhand, India. e-mail: hp.tiwari@tatasteel.com
P.K. Banerjee
Affiliation:
Chief, Raw Material & Coke Making Research, R&D, Tata Steel Ltd., 831001 Jamshedpur, Jharkhand, India; e-mail: pkbanerjee@tatasteel.com
V.K. Saxena
Affiliation:
Head, Department of Chemical Engineering, ISM, Dhanbad, India; e-mail: vksaxenaism@hotmail.com
R. Sharma
Affiliation:
Principal Researcher, Raw Material & Coke Making Research, R&D, Tata Steel Ltd., 831001 Jamshedpur, Jharkhand, India; e-mail: rsharma@tatasteel.com
S.K. Haldar
Affiliation:
Chief, Coke Plants, Tata Steel Ltd., 831001 Jamshedpur, Jharkhand, India; e-mail: skhaldar@tatasteel.com
S. Verma
Affiliation:
GM, Hooghly Met Coke (HMC) Division, Tata Steel Ltd., 831001 Jamshedpur, Jharkhand, India; e-mail: shailesh.verma@tatasteel.com
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Abstract

Maximization of non-coking coal in coal blend is eloquent interest among researchers in coke making throughout the world. To maximize the non-coking coals in coal blend with the scarce and expensive coking coals is an essential practice in the iron and steel industry. The fundamental aspect of the coal blending theory of low value coals to produce good quality of metallurgical coke in non-recovery coke making process was investigated in this study by using the composite coking potential technique. The implementation of the technique has yielded use of up to 25% pulverized coal injection, 20% raw petroleum coke as a component of coal blend. Results show that the coal blend having composite coking potential value of \hbox{$\geqslant $}⩾4.8 is desired to achieve the targeted coke strength after reaction of \hbox{$\geqslant $}⩾65.

Keywords

composite coking potentialpulverized coal injection coalraw petroleum cokenon-recovery coke makingcoke quality
Type
Research Article
Information
Metallurgical Research & Technology , Volume 111 , Issue 4 , 2014 , pp. 211 - 220
Copyright
© EDP Sciences 2014

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