试论高炉燃料替代的降碳路径
Research on BF Carbon Reduction through Fuel Substitutes
周翔 1白永强2
作者信息
- 1. 冶金工业规划研究院,北京 100013
- 2. 中国矿产资源集团有限公司,北京 100142
- 折叠
摘要
为有效降低高炉工序的CO2排放量,向高炉喷吹气体、液体或固体燃料来替代焦炭受到广泛的关注.以我国6家典型钢铁企业7座1800m3级高炉2021年的主要技术经济指标为基础,重点分析了燃料比和煤比对高炉C02排放量的作用和影响.结果表明,6家典型钢铁企业高炉CO2排放量约为1.419～1.595 t/t,影响高炉CO2排放量相关性最强的因素且最重要的指标是燃料比,而单纯提高喷煤比的技术手段并不是降低高炉CO2排放量的决定性因素.因此,通过优化喷吹燃料的种类,以氢代碳,实现有效替代,才是降低高炉CO2排放量的有效途径.
Abstract
To effectively reduce CO2 emission generated during BF production,more and more steel producers are interesting in the solution of injecting gas,or using liquid or solid fuel as substitute of coke charge to BF.It is analyzed the influences of fuel rate and coal injection rate on the furnace CO2 emission based on the main techno-economic indicators of seven 1800 m3 scale BFs owned by six typical steel producers in 2021.The results show that BF C02 emission of these six typical steel producers spans from 1.419 to 1.595 t/t,and fuel rate roles as the most important factor closely related to the CO2 e-mission.However,simply increasing the pulverized coal injection rate isn't the decisive way to reduce the CO2 emission,in-stead,selecting hydrogen as a substitute of carbon is more effective.
关键词
高炉/CO2排放量/燃料比/喷煤比/燃料替代Key words
blast furnace/CO2 emission/fuel rate/pulverized coal injection rate/fuel substitute引用本文复制引用
基金项目
国家重点研发计划(2019YFC1905201)
出版年
2024
NETL
NSTL
万方数据