CHEN Bo
,
YANG Jian-xin
,
OUYANG Zhi-yun
钢铁研究学报(英文版)
The internal recycling process of BOF slag which is one of the huge solid wastes from iron and steel industry was emphasized. Based on the four scenarios of different internal recycling strategies for BOF slag, life cycle assessment (LCA) as a valuable tool for industrial solid waste management was applied to analyze the contribution to reducing environmental impacts and resources burdens for each scenario. The global warming potential (GWP) results of the four scenarios show that the scenario which performs best in carbon reduction cuts off 14.2% of GWP impacts of the worst scenario. The results of this study show that the optimized internal recycling process of BOF slag can improve the environmental performance of crude steel. It is important to assess and choose an appropriate strategy to recycle BOF slag from LCA perspective to reduce the environmental impacts and resource burdens as much as possible.
关键词:
life cycle assessment
,
sustainable development
,
close-loop recycling
,
steel
,
BOF slag
刘颖昊，刘涛
钢铁
基于LCA评价方法结合高炉喷吹废塑料技术开展节能减排研究，进行高炉喷吹废塑料情景下钢铁主?纺芎暮虲O2气体减排分析。高炉喷吹废塑料后铁水、热轧卷和冷轧卷的能耗在钢厂边界内部有小幅度增加，随着喷吹比例的提高，增加幅度上升；而生命周期能耗有所减少，减少幅度随着喷吹比例的提高而增加；铁水、热轧卷和冷轧卷在钢厂边界内的CO2排放以及生命周期CO2排放都有不同程度的减少，随着喷吹比例的提高，CO2减排幅度迅速增加。
关键词:
生命周期评价
,
waste plastic
,
blast furnace
