Increasing the Use of Scrap Steel - Challenges and Opportunities

增加废钢的使用——挑战与机遇

• 批准号: 2879737
• 金额: --
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2879737
• 关键词: Increasing; Use; Scrap; Steel; Challenges

Significantly increasing the use of steel scrap in steel production has become a strategic decision for the UK steel industry. This is driven by the government compulsory target of reducing CO2 emissions by 80% before 2050 for industry and is motivated by the current over-supply of steel scrap and its projected growth in quantity into the 2020's. Therefore strategies to increase the amount of scrap steel used in future steelmaking operations have attracted a good deal of research interest particularly in recent years, including significant current work within UK academia and the UK steel industry and are a key part of the discussions around sustainability, net zero and materials circularity. This is a topic that is important not only to scrap based electric arc furnace based steelmakers, but also to integrated steelmakers, who are interested in increasing the use of scrap steel in both the blast furnace (BF) process used to make iron, and the basic oxygen process (BOF) used to make steel. In addition, many integrated steel makers are already exploring the requirements for the transition to more scrap based steelmaking operations in the future.Therefore the need to understand some of the limitations and challenges, and solve some of the problems associated with the increased use of scrap will become even more crucial to the industry in the years ahead. This project would complement the current portfolio of existing scrap projects and will approach the problem using both experimental techniques and life cycle thinking methodology. The principal aims of this project are 1. To understand more about the chemical nature and physical form of existing scrap streams, and how that affects the melting behaviour, heat transfer and chargeability of the scrap2. What changes would be required to these scrap streams in terms of physical form, quality and chemistry to allow for increased use of scrap within both the BOF and BF3. How these changes might affect product design for an electric steelmaking route compared with an integrated route and what would be required for the design of steel products to make the re-use, recovery and recycling of them at end of life much easier in terms of exploitation in the steelmaking processes. 4. To carry out an environmental assessment of scenarios involving the increased use of scrap in both basic oxygen and blast furnace ironmaking operations

大幅增加钢铁生产中废钢的使用已成为英国钢铁行业的战略决策。这是由政府在 2050 年之前将工业二氧化碳排放量减少 80% 的强制性目标推动的，也是由当前废钢供应过剩及其预计到 2020 年数量增长所推动的。因此，增加未来炼钢业务中废钢使用量的策略吸引了很多研究兴趣，特别是近年来，包括英国学术界和英国钢铁行业当前的重要工作，并且是围绕可持续性讨论的关键部分，净零和材料循环。这个话题不仅对基于废钢的电弧炉钢铁制造商很重要，而且对综合钢铁制造商也很重要，他们有兴趣在炼铁的高炉 (BF) 工艺和炼铁工艺中增加废钢的使用。用于炼钢的转炉转炉法 (BOF)。此外，许多综合钢铁制造商已经在探索未来向更多基于废钢的炼钢业务过渡的要求。因此，需要了解一些限制和挑战，并解决与增加废钢使用相关的一些问题未来几年对该行业将变得更加重要。该项目将补充现有报废项目的当前组合，并将使用实验技术和生命周期思维方法来解决问题。该项目的主要目标是 1. 更多地了解现有废料流的化学性质和物理形态，以及其如何影响废料的熔化行为、传热和充电能力2。这些废料流在物理形态、质量和化学方面需要进行哪些改变，才能增加转炉和高炉中废料的使用。与综合路线相比，这些变化可能会如何影响电炉炼钢路线的产品设计，以及钢铁产品的设计需要什么，以便在开发方面更容易地在寿命结束时再利用、回收和再循环它们在炼钢过程中。 4. 对碱性氧气和高炉炼铁作业中增加废钢使用的情景进行环境评估