A UK-China partnership for energy and materials recovery in steelmaking

2013年，全球在1650℃的温度下生产了约1.1亿吨“废”渣，其中含有~25%的FeO，使其成为潜在的能源和原材料来源。这项工作旨在将实验室中开发的两个概念结合并实施到工业炼钢中。第一种方法是将炉渣的热能（从水中）转化为氢，氢可以用来降低内部碳足迹，也可以作为燃料出口到外部。其次，回收有价值的金属氧化物用于内部再利用和降低原材料使用量或出口用于其他目的。这两个概念都是以控制气体气氛为基础的。该项目旨在发展炉渣结构及其随气体气氛和温度变化的基本知识（WP1和WP2），并在此基础上设计和建造一个工业试验堆来实施该工艺（WP3）。如果在全球范围内实施，根据2013年生产的BOS钢，预计该过程如果成功，可以节省超过33亿美元。此外，热量和有价值的化学品的回收有助于一个更加绿色和能源和原材料弹性的钢铁工业。华威集团将领导开发综合热材料回收工艺，完成规模扩大试验，以回收热能（生产合成气燃料）和氧化形式的有价值金属元素（例如fe3o4和Fe2MnO4）。他们还将参与WP2（为材料回收提供支持）和WP3（为试点工厂试验提供建议）。

In 2013 approximately 110 Mt "waste" slag was produced worldwide at temperatures of 1650 oC containing ~25% of FeO,making it a potential source of energy and raw material. This work aims to combine and implement two concepts developedin the laboratory to industrial steelmaking. The first is to convert the thermal heat of the slag into hydrogen (from water),which can be used to lower the in-house C footprint or exported externally as a fuel. Secondly the valuable metal oxidesare recovered for in-house re-use and lower raw materials usage or exported for other purposes. Both concepts are basedon controlling the gas atmosphere. The project aims toat developing fundamental knowledge on the slag structure and itsevolution as function of gas atmosphere and temperature (WP1 and WP2) and based thereupon, design and build anindustrial test-reactor for carrying out the process (WP3). If implemented worldwide, it is envisaged that the process, ifsuccessful, could save over $3,300 M based on the BOS steel produced in 2013. In addition, the recovery of heat andvaluable chemicals contributes to a more green and energy and raw-material resilient steel industry.The Warwick group will lead on the development of the integrated heat-materials recovery process, completing scale-uptrials to recover both the thermal energy (producing syngas fuel) and valuable metal elements in oxide forms (e.g. Fe3O4and Fe2MnO4). They will also be involved in WP2 - providing support for materials recovery and WP3 - advice for the pilotplant trials.