高炉煤气循环耦合富氢对中国炼铁低碳发展的意义

中国钢铁工业规模巨大，主要由高炉 转炉长流程生产，其能源结构中90%为煤炭，是国家兑现2030年降低碳排放强度承诺的主战场之一。基于当前低碳炼铁技术的研发进展、中国面临的碳减排任务、中国钢铁工业的生产模式、中国钢铁工业碳排放现状等基本事实，提出了以高炉为主体、以炉顶煤气循环耦合富氢还原为技术特征的钢铁工业低碳发展的可行路径，分析了该工艺研发所面临的关键问题，以期引起钢铁行业的重视，为中国钢铁工业进一步深度降低碳排放提供参考。

Effect of blast furnace gas recycling with hydrogen injection on #br#low carbon development of Chinese ironmaking

 China′s iron and steel industry is huge in scale, mainly produced by blast furnace basic oxygen furnace long term processes. 90% of its energy structure is coal, which is one of the main battlefields for the country to fulfill its commitment to reduce carbon emission intensity in 2030. Based on the current research progress of global low carbon ironmaking technology, the carbon emission reduction task of China, the production mode of China′s steel industry, and the carbon emission status of China′s steel industry, a feasible path for low carbon development of iron and steel industry with blast furnace as the main body and top gas coupled with hydrogen rich reduction as the technical characteristics was proposed and the main problems faced during the development of the new technology were also analyzed, with a view to attracting the attention of China′s steel industry and to providing reference for China′s steel industry to further reduce carbon emissions.