Optimizing the coke oven process by adjusting the temperature of the combustion chambers

焦炭 反应后焦炭强度 燃烧 高炉 焦炉 石油焦 燃烧室 冶金 废物管理 原材料 固体燃料 煤燃烧产物 能源消耗 工艺工程 环境科学 工程类 材料科学 化学 有机化学 电气工程
作者
G.W. Farias Neto,Mariana Bessa Leite,T.O.A.C. Marcelino,Laís Carneiro,Karoline Dantas Brito,Romildo Pereira Brito
出处
期刊:Energy [Elsevier BV]
卷期号:217: 119419-119419 被引量:23
标识
DOI:10.1016/j.energy.2020.119419
摘要

Metallurgical coke is obtained from coal and is a fuel and raw material for the iron and steel industries. However, only 15% of the world’s coal reserves have the required properties for metallurgical coke, which makes the useful coal expensive. Transforming coal into metallurgical coke is an energy-intensive endeavor, and global competition requires worldwide steelmakers to be more efficient in terms of energy consumption, therefore the optimization of the coke production process has become increasingly decisive. The objective of this study was to develop a rigorous model of the coke oven process by separately considering the coke oven, combustion chamber, and regenerative bed. In this study, the coke oven was divided into zones according to the number of available temperature measurements in each combustion chamber. The developed model using Aspen Plus™ was used primarily to obtain a more uniform combustion chamber temperature profile and to investigate the effect of the combustion chamber temperature profile on the fuel consumption. The results were validated from the plant data for temperature, flowrate, and composition. A new set of operating conditions was implemented, and the consumption of coke oven gas was reduced by approximately 12%.
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