模拟高炉喷氢操作软化熔融试验条件的开发

IF 1.7 3区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Ironmaking & Steelmaking Pub Date : 2023-03-15 DOI:10.1080/03019233.2023.2185735

N. Barrett, S. Mitra, H. Doostmohammadi, Damien O’dea, P. Zulli, S. Chew, T. Honeyands

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引用次数: 1

摘要

摘要软化和熔炼（S&M）实验与高炉一起发展，成为炉料表征和优化的重要工具。现代高炉从各种来源获得基本负荷的氢气。然而，考虑到高炉的氢气富集以减少排放，需要新的S&M测试条件。在本研究中，使用二维轴对称CFD模型来模拟现代高炉运行的内部条件，以及风口级氢气喷射的未来运行。模型结果用于指导新的S&M测试条件的开发，包括H2、H2O、CO、CO2和N2。氢气富集时的最大氢气浓度为20%，气体中的含氢部分主要取代氮气。特别强调了在进气中加入水蒸气的重要性，以及它对S&M试验中发生的反应的影响。

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Development of softening and melting testing conditions simulating blast furnace operation with hydrogen injection

ABSTRACT Softening and Melting (S&M) experiments have evolved alongside the blast furnace as a crucial tool for burden characterisation and optimisation. Modern blast furnaces derive a base load of hydrogen from various sources. However, with hydrogen-enrichment of the blast furnace being considered to mitigate emissions, new S&M test conditions are required. In this study, a 2-D axisymmetric CFD model is used to simulate the internal conditions of a modern blast furnace operation, and a future operation with tuyere level hydrogen injection. The model results are used to guide the development of novel S&M test conditions, inclusive of H2, H2O, CO, CO2 and N2. The maximum hydrogen concentration under hydrogen enrichment was 20%, with the hydrogenous fraction of the gas primarily replacing nitrogen. A particular focus was given to the importance of including water vapour in the inlet gas, andits impact on reactions occurring in the S&M test.

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来源期刊

Ironmaking & Steelmaking 工程技术-冶金工程

CiteScore

3.70

自引率

9.50%

发文量

125

审稿时长

2.9 months

期刊介绍： Ironmaking & Steelmaking: Processes, Products and Applications monitors international technological advances in the industry with a strong element of engineering and product related material. First class refereed papers from the international iron and steel community cover all stages of the process, from ironmaking and its attendant technologies, through casting and steelmaking, to rolling, forming and delivery of the product, including monitoring, quality assurance and environmental issues. The journal also carries research profiles, features on technological and industry developments and expert reviews on major conferences.