Sinks of steel in China鈥揳ddition to in-use stock, export and loss

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• 作者：Hua Guo ; Tianzhu Zhang
• 关键词：steel demand ; driver ; Material Flow Analysis (MFA) ; Substance Flow Analysis (SFA) ; addition to in ; use stock ; steel policy
• 刊名：Frontiers of Environmental Science & Engineering
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：10
• 期：1
• 页码：141-149
• 全文大小：1,017 KB
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• 作者单位：Hua Guo (1) (2)
  Tianzhu Zhang (1)
  
  1. School of Environment, Tsinghua University, Beijing, 100084, China
  2. Beijing Metallurgical Equipment Research Design Institute Co. Ltd., Beijing, 100029, China
  
• 刊物主题：Environment, general;
• 出版者：Springer Berlin Heidelberg
• ISSN：2095-221X

文摘

China has become the largest producer of crude steel in the world since 1996, which places the country under huge pressure in terms of resources, energy, and the environment. Examining the driver of steel demand is of great significance to the structural adjustment and sustainable development of the steel industry. The researchers calculate the steel demand in China from 2000 to 2009 based on three sinks (steel stock, export, and loss) by taking the four stages of steel life cycle (production, fabrication and manufacturing, use, and waste management and recycling) as the study object. The researchers conclude that addition to in-use stock is the main driver of steel demand and that the 10-year average addition to inuse stock accounted for 77% of the steel sinks, in which 55% of the addition occurs in the building sector, and the steel for this segment is of low strength with large consumption. Based on the analysis of existing policies, the researchers propose that the steel demand structure will develop toward diversification and that the building sector will realize the upgrade of products as soon as possible to improve construction quality. Under the pressure of rising cost for imported resources, the export ratio of steel products should be controlled appropriately. Thus, recycling economy should be developed to reduce steel losses. Keywords steel demand driver Material Flow Analysis (MFA) Substance Flow Analysis (SFA) addition to in-use stock steel policy