炼铁工序减污降碳协同增效技术评估方法研究  

Evaluation method of synergistic benefits enhancement technologies for pollution abatement and carbon reduction in the ironmaking process

作　　者：银洲[1] 况悦 刘丹丹 赵亚洲 张昕 李艳萍[1] YIN Zhou;KUANG Yue;LIU Dandan;ZHAO Yazhou;ZHANG Xin;LI Yanping(Chinese Research Academy of Environmental Sciences)

机构地区：[1]中国环境科学研究院

出　　处：《环境工程技术学报》2024年第1期33-42,共10页Journal of Environmental Engineering Technology

基　　金：中央级公益性科研院所基本科研业务费专项(2022YSKY-20);黄河流域碳达峰范式与试点项目(2022-YRUC-01-0403)。

摘　　要：为推广减污降碳协同控制技术,以炼铁工序为研究对象,从协同度、成本收益和环境影响3个维度评价炼铁工序源头、过程节能技术、末端治理技术和低碳技术的协同控制效益。从污染物和碳排放协同度分析来看,源头、过程节能技术能有效推动炼铁工序污染物和碳排放的协同减排,而末端控制技术对污染物和温室气体的减排不具有协同性。绿氢冶炼技术和熔剂性球团制备技术污碳减排协同度较高,此外高炉喷吹焦炉煤气技术、高炉煤气回收技术和高炉热风炉双预热能协同减少VOCs和碳排放。在当前我国碳交易价格条件下,从成本收益分析来看节能技术和污染物末端治理技术具有可推广性。随着碳交易价格的上涨,绿氢冶炼和碳捕集(CCS)技术减排成本呈下降趋势。绿氢冶炼技术、污染物末端治理技术最能有效地减少环境影响,其他节能技术也能相应减少环境影响,而现有条件下CCS技术的实施会增加对环境的影响。综合污染物和温室气体协同减排的协同度、经济效益和环境效益评估,炼铁工序中源头防治和节能技术可作为我国现阶段减污降碳协同增效技术进行推广,随着未来碳交易价格的增长和能源的转型,绿氢冶炼技术和CCS技术具有较大应用前景。To promote the synergetic reduction technologies of pollution and carbon,the ironmaking process technology was taken as the research object,and the synergistic benefits of source and process-control technologies,end treatment technologies,and low-carbon technologies were evaluated from three perspectives of synergy level,cost-benefit,and environmental impact.In terms of synergy between pollution abatement and carbon reduction,the source and process-control energy-saving technologies could effectively promote the synergistic reduction of pollutants and carbon emissions of the ironmaking process,while end treatment technologies could not synergistically reduce pollutants and carbon emissions.Specifically,the green hydrogen smelting technology and flux-based pellet preparation technology had a high degree of synergy in reducing pollution and carbon emissions.The injection coke oven gas technology,blast-furnace gas recovery technology,and dual preheating of the hot blast furnace could synergistically reduce VOCs and carbon emissions.Under China's current carbon trading prices,energy-saving technologies and pollutant treatment technologies could be popularized according to the cost-benefit analysis.The cost of green hydrogen smelting and CCS technologies was declining with the rise of carbon trading prices.Green hydrogen smelting and pollutant treatment technologies were the most effective ways to reduce environmental impact,while other energy-saving technologies could also correspondingly reduce environmental impact.Under existing conditions,the implementation of CCS technologies would increase environmental impact.Based on the assessment of synergy between pollution abatement and carbon reduction,economic benefits and environmental benefits,the source prevention and energy-saving technologies in the ironmaking process could be promoted as China's current pollution reduction and carbon reduction synergy technologies.With the increase in carbon emission trading prices and green transformation in the future,green hydro

关 键 词：炼铁工序 减污降碳技术 协同评估 

分 类 号：X32[环境科学与工程—环境工程]