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The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation

Dan Stewart, David Thomson, Andrew Barron Orcid Logo

Resources, Conservation and Recycling, Volume: 170, Start page: 105592

Swansea University Authors: Dan Stewart, Andrew Barron Orcid Logo

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DOI (Published version): 10.1016/j.resconrec.2021.105592

Abstract

Zinc contaminated steelmaking by-products such as blast furnace (BF) dust and basic oxygen steelmaking (BOS) dust present a significant recycling challenge at integrated steelmaking plants. Rotary Hearth Furnaces (RHFs) provide an attractive route for recovery of Fe and Zn from these materials throu...

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Published in: Resources, Conservation and Recycling
ISSN: 0921-3449
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56718
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spelling 2022-08-15T14:35:50.2218848 v2 56718 2021-04-22 The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation 804211bb4fb801d3f92cdbec5e12596a Dan Stewart Dan Stewart true false 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false 2021-04-22 FGSEN Zinc contaminated steelmaking by-products such as blast furnace (BF) dust and basic oxygen steelmaking (BOS) dust present a significant recycling challenge at integrated steelmaking plants. Rotary Hearth Furnaces (RHFs) provide an attractive route for recovery of Fe and Zn from these materials through carbothermal reduction of the oxides in the material to yield Direct Reduced Iron (DRI) and crude zinc oxide. The next generation of RHF processes such as ITmk3 and e-nugget produce pig iron nuggets from iron ore concentrates and coal, as iron and gangue separate in-situ without an additional melting unit. A computational study of the metal-slag system using FACTSAGE 7.3 suggests that production of pig iron nuggets of good quality (93.75 wt.% Fe, 4.3 wt.% C, 0.116 wt.% S, 0.66 wt.% Mn) can be produced from BF dust and BOS dust in a ratio of 37:63 with addition of 5.4 wt.% SiO2 and 1.51 wt% MgO at 1450 °C. These computational results are in good agreement with experimental studies on similar material and, as such, suggest a practically feasible process. Journal Article Resources, Conservation and Recycling 170 105592 Elsevier BV 0921-3449 Ironmaking, Pig iron nugget, Recycling, Basic oxygen steelmaking dust, Blast furnace dust 1 7 2021 2021-07-01 10.1016/j.resconrec.2021.105592 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University Financial support was provided by Materials and Manufacturing Academy (M2A) that has been made possible through funding from the European Social Fund via the Welsh Government, the Engineering and Physical Sciences Research Council (EPSRC), and Tata Steel Europe. Additional support is provided by the Reducing Industrial Carbon Emissions (RICE) operations funded by the Welsh European Funding Office (WEFO) through the Welsh Government. 2022-08-15T14:35:50.2218848 2021-04-22T08:46:28.9045098 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Dan Stewart 1 David Thomson 2 Andrew Barron 0000-0002-2018-8288 3 56718__19729__f9d91fa4d87c4940be1f610ee6b6f2be.pdf 56718.pdf 2021-04-22T10:26:03.5992590 Output 1659826 application/pdf Accepted Manuscript true 2022-04-16T00:00:00.0000000 ©2021 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation
spellingShingle The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation
Dan Stewart
Andrew Barron
title_short The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation
title_full The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation
title_fullStr The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation
title_full_unstemmed The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation
title_sort The production of high value pig iron nuggets from steelmaking by-products – A thermodynamic evaluation
author_id_str_mv 804211bb4fb801d3f92cdbec5e12596a
92e452f20936d688d36f91c78574241d
author_id_fullname_str_mv 804211bb4fb801d3f92cdbec5e12596a_***_Dan Stewart
92e452f20936d688d36f91c78574241d_***_Andrew Barron
author Dan Stewart
Andrew Barron
author2 Dan Stewart
David Thomson
Andrew Barron
format Journal article
container_title Resources, Conservation and Recycling
container_volume 170
container_start_page 105592
publishDate 2021
institution Swansea University
issn 0921-3449
doi_str_mv 10.1016/j.resconrec.2021.105592
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description Zinc contaminated steelmaking by-products such as blast furnace (BF) dust and basic oxygen steelmaking (BOS) dust present a significant recycling challenge at integrated steelmaking plants. Rotary Hearth Furnaces (RHFs) provide an attractive route for recovery of Fe and Zn from these materials through carbothermal reduction of the oxides in the material to yield Direct Reduced Iron (DRI) and crude zinc oxide. The next generation of RHF processes such as ITmk3 and e-nugget produce pig iron nuggets from iron ore concentrates and coal, as iron and gangue separate in-situ without an additional melting unit. A computational study of the metal-slag system using FACTSAGE 7.3 suggests that production of pig iron nuggets of good quality (93.75 wt.% Fe, 4.3 wt.% C, 0.116 wt.% S, 0.66 wt.% Mn) can be produced from BF dust and BOS dust in a ratio of 37:63 with addition of 5.4 wt.% SiO2 and 1.51 wt% MgO at 1450 °C. These computational results are in good agreement with experimental studies on similar material and, as such, suggest a practically feasible process.
published_date 2021-07-01T04:11:53Z
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score 11.014067

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