HIsarna废气系统中铁酸锌(ZnFe2O4)形成的热力学分析

IF 1.7 3区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING Ironmaking & Steelmaking Pub Date : 2022-10-04 DOI:10.1080/03019233.2022.2124491
A. Hosseini, E. Moosavi-Khoonsari, K. Meijer, Johannes L. T. Hage, T. Peeters, Erik Offerman, Yongxiang Yang
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引用次数: 1

摘要

HIsarna反应器具有原料通用性高的特点,因此对加工二次铁源具有吸引力。在可以通过HIsarna回收的材料中,含锌材料引起了特别的关注。根据工厂数据,一旦将含锌粉尘注入主反应器,最终收集到的含锌粉尘含量为16%,这为在锌冶炼中作为二次来源和锌矿(一次来源)的替代品直接再利用开辟了更高富集度的可能性。然而,锌蒸气可以与氧化铁反应形成铁氧体锌(ZnFe2O4),这是不希望的产物。因此,本研究的主要重点是使用热力学(FactSage)和计算流体动力学工具最大限度地减少ZnFe2O的形成。在检测到ZnFe2O4形成的高电势区域后,提出了对废气系统进行适当的几何和操作修改,以最大限度地减少铁氧体锌的形成。
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Thermodynamic analysis of zinc ferrite (ZnFe2O4) formation inside the HIsarna off-gas system
ABSTRACT HIsarna reactor is characterized by a high raw materials versatility and is therefore attractive for processing secondary iron sources. Among the materials that can be recycled through HIsarna, zinc-bearing material has drawn a special attention. Based on the plant data, once dust-containing Zinc was injected into the main reactor, a final collected dust with a zinc content of 16% was achieved which opened up possibilities of higher enrichment for direct reuse in Zn smelting as a secondary source and an alternative for Zn ore (the primary source). However Zn vapor can react with iron oxide to form zinc ferrite (ZnFe2O4), which is an undesired product. Hence, the main focus of this study is to minimize the formation of ZnFe2O using thermodynamic (FactSage) and computational fluid dynamic tools. After detecting regions with high potential of ZnFe2O4 formation, proper geometrical and operational modifications of the off-gas system is proposed to minimize the formation of zinc ferrite.
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来源期刊
Ironmaking & Steelmaking
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.
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