Cite this article as:

Chenmei Tang, Zhengqi Guo, Jian Pan, Deqing Zhu, Siwei Li, Congcong Yang, and Hongyu Tian, Current situation of carbon emissions and countermeasures in China’s ironmaking industry, Int. J. Miner. Metall. Mater., 30(2023), No. 9, pp.1633-1650. https://dx.doi.org/10.1007/s12613-023-2632-7
Chenmei Tang, Zhengqi Guo, Jian Pan, Deqing Zhu, Siwei Li, Congcong Yang, and Hongyu Tian, Current situation of carbon emissions and countermeasures in China’s ironmaking industry, Int. J. Miner. Metall. Mater., 30(2023), No. 9, pp.1633-1650. https://dx.doi.org/10.1007/s12613-023-2632-7
引用本文 PDF XML SpringerLink

中国炼铁行业碳排放现状及对策

摘要: 钢铁工业是一个高能耗、高污染的行业。中国是世界上最大的钢铁生产国和消费国,其能源消耗占全国总能源的15%,碳排放量占全球钢铁工业的50%以上。因此,在全球低碳经济和减排要求的背景下,钢铁工业的低碳冶炼技术在国内越来越受到重视。本文综述了中国钢铁工业的碳排放和能耗现状,探讨了低碳炼铁技术的发展现状和前景。提出有效降低碳排放的主要途径是发展气基直接还原工艺和用球团代替烧结,两者都离不开发展球团工艺。然而,由于国内缺乏优质铁资源,如何获得高质量的铁精矿是球团工艺发展面临的挑战。因此,本文还总结了中国选矿技术的发展现状,包括细粒选矿技术、磁化焙烧技术和浮选捕收剂的应用等。本文结合钢铁冶炼的低碳发展现状,从选冶联合的角度为中国炼铁工业低碳之路的发展提供了思路。

 

Current situation of carbon emissions and countermeasures in China’s ironmaking industry

Abstract: The iron and steel industry (ISI) involves high energy consumption and high pollution. ISI in China, a leading country in the ISI, consumed 15% of the country’s total energy and produced more than 50% of the global ISI’s carbon emissions. Therefore, in the context of global low-carbon economy and emission reduction requirements, low-carbon smelting technology in the ISI has attracted increasingly more attention in China. This review summarizes the current status of carbon emissions and energy consumption in China’s ISI and discusses the development status and prospects of low-carbon ironmaking technology. The main route to effectively reducing carbon emissions is to develop a gas-based direct reduction process and replace sintering with pelletizing, both of which focus on developing pelletizing technology. However, the challenge of pelletizing process development is to obtain high-quality iron concentrates. Consequently, the present paper also summarizes the development status of China’s mineral processing technology, including fine-grained mineral processing technology, magnetization roasting technology, and flotation collector application. This paper aims to provide a theoretical basis for the low-carbon development of China’s ISI in terms of a dressing–smelting combination.

 

/

返回文章
返回