Abstract
The increasing focus on sustainability of Steel Industries worldwide has brought in new trends, viz. maximizing utilization of assets and reduction of energy consumption and carbon footprint. Coke dry quenching (CDQ) technology for recovery of waste heat from hot coke to generate process steam and power is well established and adopted worldwide that meets these objectives of sustainable operation. Conceptualizing and executing CDQ technology in brown field site conditions throws up many challenges requiring innovative approach for technically and financially feasible solutions. The complexity of the situation is compounded with the requirement of proper technology selection based on space availability, synchronization of CDQ operation with oven pushing schedule, integration of the process with existing system, keeping the existing coke oven batteries operative as well as adhering to maintainability, process safety protocols and constructability of new facilities within the project execution schedule. Brief description of CDQ process, advantages and challenges for implementation of the same in brownfield unit has been described in this paper with examples/ references.
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References
Ministry of Environment memorandum F.No.22 34/2018-1A.III, dated Aug. 9, 2018
Iron making and General Industry Technology—Part 2 CCT Overview on CDQ at Japan on 11th January 2007, presented by Nippon Steel Engg. Co. Ltd. http://www.jcoal.or.jp/eng/cctinjapan/2_3A5.pdf
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Acknowledgements
The authors are thankful to the Management of TCE for allowing to publish this paper with active participation of Tata Steel Limited (TSL). Joint project execution by TSL and TCE with successful commissioning of CDQ unit in a brown field CDQ project was a real team work.
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Bhatt, V., De, M., Chandra, B. et al. Design and Engineering Challenges for Installation of Coke Dry Quenching Plant in Brown Field Scenario. Trans Indian Inst Met 74, 1141–1153 (2021). https://doi.org/10.1007/s12666-020-02157-7
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DOI: https://doi.org/10.1007/s12666-020-02157-7