Scholarlink

<p>The iron blast furnace (BF) boasts a century-old legacy in producing hot metal, crucial for large-scale steel production. It has undergone numerous technical modifications over the years, enhancing its efficiency, and this trend is expected to continue for at least a couple of decades. In today's context, there is significant pressure to reduce carbon emissions from BFs. As a result, several modeling studies have been conducted to analyze the effects of various hydrogen-rich auxiliary fuels in lowering the coke rate and the overall carbon emissions from the BF. The present study includes a zero-dimensional heat and mass balance modeling investigation of the direct injection of pure hydrogen (H<sub>2</sub>) through the BF tuyeres and evaluates the effects of H<sub>2</sub> injection on BF performance under various pulverized coal injection (PCI) rates and changes in pellet percentage in the metallic burden. Additionally, the study examines the effect of H<sub>2</sub> injection temperature on the coke rate.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Co-Injection of Hydrogen and Pulverized Coal Through Blast Furnace Tuyeres

  • 期刊论文

  • 发表日期：

    2025年12月1日

查看全文
  • Jagdish Patra,
  • Viswanathan N. Nurni

摘要

The iron blast furnace (BF) boasts a century-old legacy in producing hot metal, crucial for large-scale steel production. It has undergone numerous technical modifications over the years, enhancing its efficiency, and this trend is expected to continue for at least a couple of decades. In today's context, there is significant pressure to reduce carbon emissions from BFs. As a result, several modeling studies have been conducted to analyze the effects of various hydrogen-rich auxiliary fuels in lowering the coke rate and the overall carbon emissions from the BF. The present study includes a zero-dimensional heat and mass balance modeling investigation of the direct injection of pure hydrogen (H2) through the BF tuyeres and evaluates the effects of H2 injection on BF performance under various pulverized coal injection (PCI) rates and changes in pellet percentage in the metallic burden. Additionally, the study examines the effect of H2 injection temperature on the coke rate.