Coke dry quenching and implications on coke quality and blast furnace performance

Abstract

The advent of coke dry quenching (CDQ) in coke-making benefited coke plants not only in reducing coke moisture but also in extracting a part of the sensible energy within the hot incandescent coke with a reduction in environmental pollution. In addition to these direct benefits, other advantages include (1) improved coke quality, (2) enablement of higher coke production without compromising quality, (3) online coal-cake bulk density measurement, and (4) improved blast furnace performance. The present study at Tata Steel, Jamshedpur, concentrates on the assessment of these additional benefits when CDQ units were operated at full capacity. Besides, the article also focuses on reviewing the major obstacles faced during CDQ operation, such as clinker formation and coke flotation issues.

Analysis of Power Generation Process Exergy Efficiency of Large CDQ Waste Heat Boiler Under the Background of Double Carbon

“…The ability of mutual transformation among various forms of energy is not the same. If this conversion ability is taken as the evaluation standard, the "quality" of various forms of energy can be evaluated (Gangadharan et al, 2022;Sun et al, 2015). The energy analysis theory based on the first law and the second law of thermodynamics is undoubtedly superior to any other energy analysis method in terms of its scientific nature and its guiding role in practice (Danilin et al, 2014;Taketomi et al, 2004).…”