Optimization and regulation of waste heat centralized heating in the steel industry under carbon offsetting and carbon trading
To control carbon emissions generated by energy consumption and help achieve carbon peak and carbon neutrality goals,an optimized scheduling plan is proposed that takes into account carbon offsetting and carbon trading in the steel industry's waste heat.This article is based on the comprehensive carbon emission evaluation index to analyze the balance between upstream steel residual heat and downstream heating carbon offset of the waste heat heating project in Qianxi County from 2022 to 2023.The research results indicate that the comparison of carbon offset per unit heat of each process is as follows:blast furnace slag water＞sintering flue gas＞absorption machine＞sintering slow cooling steam＞12MW steam water heat exchanger＞15MW steam water heat exchanger.The optimization method for steel waste heat utilization,which takes into account carbon emissions and carbon offsetting in recent plans,can recover 247.5MW of residual heat in typical projects,reduce 20500 tons of CO2,and achieve a comprehensive energy efficiency of 0.004tC02/m2.The results have proven that this plan is of great significance for improving energy utilization efficiency,reducing environmental pollution,and achieving low-carbon transformation of building heating.
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