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钢铁行业采用多工艺生产,支持"双碳"目标:深入研究不同工艺产生的二氧化碳排放

Hongming Na¹, Yuxing Yuan¹, Tao Du¹

¹SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China; School of Metallurgy, Northeastern University, Shenyang 110819, China.

Journal of environmental sciences (China)

|February 8, 2024

概括

减少中国钢铁行业的二氧化碳排放至关重要. 这项研究比较了高炉-基本氧炉 (BF-BOF),废料电炉 (scrap-EF) 和金业,发现废料EF的排放较低,减少产量是关键.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

钢铁行业是二氧化碳的主要排放者,对中国的"双碳"目标至关重要.
现有的研究缺乏关于主要钢铁制造工艺和关键减排因素之间的二氧化碳排放差异的定量分析.

研究的目的:

量化比较BF-BOF,废料-EF和金工艺过程中的二氧化碳排放.
确定影响钢铁生产中二氧化碳排放的关键因素.
根据工业结构调整预测未来的二氧化碳排放.

主要方法:

材料流量分析用于构建三种钢铁制造工艺的碳流动图.
分析影响二氧化碳排放的关键因素.
通过工业结构调整预测二氧化碳排放的建模.

主要成果:

每个地点的二氧化碳排放量:BF-BOF (1417.26公斤),废料-EF (542.93公斤),金业 (1166.52公斤).
增加颗粒比率 (BF) 和废弃物比率 (EF) 有效地减少二氧化碳排放.
减少原钢产量是最具影响力的二氧化碳减排策略,但5.156.17 × 10^8的二氧化碳仍然需要额外的缓解.

结论:

与BF-BOF和金工业相比,废料-EF工艺的二氧化碳排放量显著降低.
优化工艺参数和材料投入对于减排至关重要.
为了实现中国在钢铁行业的碳减排目标,需要采取实质性的额外措施.

关键词:

高炉-基本氧炉工艺高炉-基本氧炉工艺二氧化碳排放预测碳的流程图碳的流程图气金工艺过程中的气金.影响因素影响因素.废旧电炉加工过程中的电炉.

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