生命周期评价方法在钢铁企业低碳发展规划中的应用

Application of life cycle assessment in low-carbon planning of iron and steel company

在当前"碳达峰""碳中和"的背景下,很多钢铁企业在制订低碳发展规划的过程中,对于减碳措施的减碳潜力没有数字化的概念,缺乏量化的评价手段和科学的数据支撑。为此,提出应用生命周期评价(LCA)进行钢铁企业低碳发展规划的方法,建立产品碳足迹与组织层级碳核算的关联。在此基础上,通过建立覆盖全公司的产品生命周期评价模型,以量化评估新技术新工艺应用、产品结构变化、能源结构变化、废钢利用率提升、节能减排改进、供应链优化等因素对于企业组织层面的碳减排绩效,可实现数字化碳减排路线图的描绘。给出了钢铁企业主要措施与策略碳减排潜力的评价方法与案例,可为钢铁企业的低碳发展规划提供参考。

In the current context of"carbon peak"and"carbon neutrality",many steel companies are formulating low-carbon plans.However,they have no digital concept on the potential of carbon reduction measures,and lack of quantitative evaluation methods and scientific data support.A method for applying life cycle assessment(LCA)to low-carbon planning for steel enterprises was proposed,and the relationship between product carbon footprint and organization-level carbon accounting was established.On this basis,through the company-wide product life cycle assessment model,it was possible to quantitatively evaluate the carbon emission reduction performance of the strategies such as the application of new technologies and new processes,product structure changes,energy structure changes,increased utilization of scrap steel,energy conservation and emission reduction,and supply chain optimization at the company organization level.In this way,the digital carbon emission reduction roadmap could be described.Examples of assessing the carbon emission reduction potential of various measures by LCA were listed,which provide reference for the low-carbon planning of steel companies.