Advance in Application and Research of Life Cycle Assessment to Steel Industry
The steel industry is a traditional industry with relative high energy consumption and pollution emissions.Because life cycle assessment(LCA)can well quantify the potential environmental impact and find a more effective path to clean production,it is widely used in promoting the green,low-carbon and high-quality development of the steel industry.Through the collection and meta-analysis of domestic and foreign literature,this paper focuses on the application and research progress of LCA to the steel industry from the following three aspects:(1)To evaluate the environmental impact of steel enterprises/steel products,and find opportunities for energy conservation and emission reduction;(2)to evaluate the environmental effects of cleaner production improvement technology or program and provide decision making basis for the iron and steel industry to improve the level of cleaner production;(3)To assess the contribution of steel as an"intermediate product"to the environmental impact of downstream industries and promote the sustainable development of the whole industrial chain.Finally,we propose three important directions for future research to further promote the research and application of LCA in the steel industry.
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