华北水利水电大学学报（自然科学版）2025，Vol.46Issue(4)：81-91,11.DOI:10.19760/j.ncwu.zk.2025060
中国钢铁行业CCUS技术的减排潜力分析
Analysis of the Emission Reduction Potential of CCUS Technology in China's Steel Industry
摘要
Abstract
[Objective]The steel industry contributes 16％to China's total CO2 emissions,posing challenges in achieving the"dual carbon"goals.This study aims to evaluate the applicability of CCUS within the steel industry,identify suitable priority demonstration areas,and assess techno-economic feasibility to provide a scientific foundation for low-carbon transformation.[Methods]Based on the entire crude steel production process,this study systematically analyzed the characteristics of CO2 emission sources at each stage.Key capture stages were comprehensively screened based on three dimensions:capture tech-nology maturity,emission reduction potential,and economic feasibility.Their emissions and capture potential were quantified accordingly.Furthermore,an enterprise-level techno-economic evaluation model and a source-sink matching model were es-tablished to assess the cost-effectiveness,emission reduction potential,and spatial distribution pattern of the entire CCUS process.In conjunction with China's regional geological storage potential,criteria and methods for selecting priority demon-stration areas were proposed.[Results](1)The study reveals that annual CO2 emissions from long-process steelmaking amount to 1.708 billion tons,with a CO2 capture potential of 1.155 billion tons per year from sintering,blast furnace iron-making,and coking processes.CO2 sources are concentrated in North China,Northeast China,and East China.(2)Regions such as Hebei,Shandong,Jiangsu,and Shanxi form optimal source-sink combinations with basins like the Bohai Bay Basin,Subei Basin,and Linfen Basin,which possess favorable CO2 storage potential.CO2 pipeline transportation is mainly over short distances of approximately 250 km.(3)Comprehensive analysis indicated that Hebei,Shanxi,and Jiangsu provinces have a CO2 capture potential of approximately 340 million tons per year,with full-process costs below 450 yuan per ton,demonstra-ting notable technical and economic advantages.[Conclusion]Early CCUS demonstrations in China's steel industry should prioritize regions such as Hebei,Shanxi,and Jiangsu,leveraging optimized source-sink matching designs to achieve the goal of cost-effective and efficient emission reductions.关键词
钢铁行业/二氧化碳捕集、利用与封存/减排潜力/源汇匹配/技术经济分析Key words
steel industry/CO2 capture,utilization and storage/emission reduction potential/source-sink matching/techno-economic analysis分类
信息技术与安全科学引用本文复制引用
苗青,雷涯邻,闫锋,陈文会,欧阳欣,张安,刘志晓,邵振权..中国钢铁行业CCUS技术的减排潜力分析[J].华北水利水电大学学报（自然科学版）,2025,46(4):81-91,11.基金项目
国家石油天然气管网集团公司重大科技项目(SSCC202107) （SSCC202107）
国家自然科学基金项目(72104116) （72104116）
教育部人文社科项目(24JHQ071). （24JHQ071）
