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Minimising Particulate Emissions From Sintering Operations / MATTHEW THOMAS

Swansea University Author: MATTHEW THOMAS

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DOI (Published version): 10.23889/SUthesis.63582

Abstract

With the drive for manufacturing and foundation industries to move towards a circular economy, the steel industry is making step changes to its processes that aim to produce greener and cleaner products. The current work is focused on sintering, which can account for almost half of all particulate m...

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Published: Swansea, Wales, UK 2023
Institution: Swansea University
Degree level: Doctoral
Degree name: EngD
Supervisor: Cockings, Hollie.
URI: https://cronfa.swan.ac.uk/Record/cronfa63582
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first_indexed 2023-06-05T09:52:16Z
last_indexed 2023-06-05T09:52:16Z
id cronfa63582
recordtype RisThesis
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spelling v2 63582 2023-06-05 Minimising Particulate Emissions From Sintering Operations d13996d077d749b93ad0517bfb2b1fdb MATTHEW THOMAS MATTHEW THOMAS true false 2023-06-05 With the drive for manufacturing and foundation industries to move towards a circular economy, the steel industry is making step changes to its processes that aim to produce greener and cleaner products. The current work is focused on sintering, which can account for almost half of all particulate matter (PM) emissions produced during integrated steelmaking. Historic sintering data has been explored to understand the formation of particulate matter and has informed experimental trials, simulating the sintering process. It has shown that it is feasible to reduce PM emissions without incurring significant capital expenditures for a new end-of-line abatement. Prioritising trials was supported by an understanding of the main key levers from the historical data analysis of the sinter plant and a pilot-scale sinter rig that had been modified to capture PM emissions was commissioned and validated. To promote a more circular economy within the steel industry, experimental work showed that the use of new micropellets made from recycled materials would enhance sintering performance and reduce PM emissions. It was determined that the amount of chloride content emitted from PM emissions increased in the waste gas stream as well as decreasing the electrostatic precipitator (ESP) abatement efficiency and this influence can be reduced by washing recycled materials to remove undesirable volatile elements before sintering. It was also established that by manipulating the ratio of nuclei, adhering, and non-adhering particles in the sinter blend by controlling the size fractions, along with partially replacing raw materials, the particle size distribution can be optimised to reduce PM emissions. E-Thesis Swansea, Wales, UK Particulate Emissions, Sinter Plant, Ironmaking, circular economy, Dust Monitoring 11 5 2023 2023-05-11 10.23889/SUthesis.63582 A selection of third party content is redacted or is partially redacted from this thesis due to copyright restrictions. COLLEGE NANME COLLEGE CODE Swansea University Cockings, Hollie. Doctoral EngD TATA Steel Strip Products UK, UKRI, EPSRC, M2A 2023-09-29T10:20:17.8557273 2023-06-05T10:49:04.4118720 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering MATTHEW THOMAS 1 63582__27705__8f281e7249cb410188e0c94a5be2f207.pdf 2023_Thomas_MH.final.63582.pdf 2023-06-05T10:56:31.5688428 Output 35466678 application/pdf Redacted version - open access true Copyright: The Author, Matthew H. Thomas, 2023. true eng
title Minimising Particulate Emissions From Sintering Operations
spellingShingle Minimising Particulate Emissions From Sintering Operations
MATTHEW THOMAS
title_short Minimising Particulate Emissions From Sintering Operations
title_full Minimising Particulate Emissions From Sintering Operations
title_fullStr Minimising Particulate Emissions From Sintering Operations
title_full_unstemmed Minimising Particulate Emissions From Sintering Operations
title_sort Minimising Particulate Emissions From Sintering Operations
author_id_str_mv d13996d077d749b93ad0517bfb2b1fdb
author_id_fullname_str_mv d13996d077d749b93ad0517bfb2b1fdb_***_MATTHEW THOMAS
author MATTHEW THOMAS
author2 MATTHEW THOMAS
format E-Thesis
publishDate 2023
institution Swansea University
doi_str_mv 10.23889/SUthesis.63582
college_str Faculty of Science and Engineering
hierarchytype
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 - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description With the drive for manufacturing and foundation industries to move towards a circular economy, the steel industry is making step changes to its processes that aim to produce greener and cleaner products. The current work is focused on sintering, which can account for almost half of all particulate matter (PM) emissions produced during integrated steelmaking. Historic sintering data has been explored to understand the formation of particulate matter and has informed experimental trials, simulating the sintering process. It has shown that it is feasible to reduce PM emissions without incurring significant capital expenditures for a new end-of-line abatement. Prioritising trials was supported by an understanding of the main key levers from the historical data analysis of the sinter plant and a pilot-scale sinter rig that had been modified to capture PM emissions was commissioned and validated. To promote a more circular economy within the steel industry, experimental work showed that the use of new micropellets made from recycled materials would enhance sintering performance and reduce PM emissions. It was determined that the amount of chloride content emitted from PM emissions increased in the waste gas stream as well as decreasing the electrostatic precipitator (ESP) abatement efficiency and this influence can be reduced by washing recycled materials to remove undesirable volatile elements before sintering. It was also established that by manipulating the ratio of nuclei, adhering, and non-adhering particles in the sinter blend by controlling the size fractions, along with partially replacing raw materials, the particle size distribution can be optimised to reduce PM emissions.
published_date 2023-05-11T10:20:19Z
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score 11.012678

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