...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Quantifying Recycling and Losses of Cr and Ni in Steel Throughout Multiple Life Cycles Using MaTrace-Alloy
【24h】

Quantifying Recycling and Losses of Cr and Ni in Steel Throughout Multiple Life Cycles Using MaTrace-Alloy

机译：使用MaTrace-Alloy量化在整个生命周期中钢中Cr和Ni的再循环和损失

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Alloying metals are indispensable ingredients of high quality alloy steel such as austenitic stainless steel, the cyclical use of which is vital for sustainable resource management. Under the current practice of recycling, however, different metals are likely to be mixed in an uncontrolled manner, resulting in function losses and dissipation of metals with distinctive functions, and in the contamination of recycled steels. The latter could result in dilution loss, if metal scrap needed dilution with virgin iron to reduce the contamination below critical levels. Management of these losses resulting from mixing in repeated recycling of metals requires tracking of metals over multiple life cycles of products with compositional details. A new model (MaTrace-alloy) was developed that tracks the fate of metals embodied in each of products over multiple life cycles of products, involving accumulation, discard, and recycling, with compositional details at the level of both alloys and products. The model was implemented for the flow of Cr and Ni in the Japanese steel cycle involving 27 steel species and 115 final products. It was found that, under a high level of scrap sorting, greater than 70% of the initial functionality of Cr and Ni could be retained over a period of 100 years, whereas under a poor level of sorting, it could plunge to less than 30%, demonstrating the relevance of waste management technology in circular economy policies.
机译：合金金属是奥氏体不锈钢等优质合金钢必不可少的成分，其周期性使用对可持续资源管理至关重要。然而，在当前的再循环实践中，不同金属可能以不受控制的方式混合，从而导致功能丧失和具有独特功能的金属散逸，并污染了再生钢。如果金属废料需要用纯铁稀释以将污染降低到临界水平以下，则后者可能导致稀释损失。要管理由于混合金属的重复回收而造成的这些损失，就需要在产品的多个生命周期内跟踪金属，并详细说明其成分。开发了一种新模型（MaTrace-合金），该模型可跟踪产品在产品的多个生命周期中所涉及的每种金属的命运，涉及累积，丢弃和循环再造，其成分详细信息在合金和产品的水平上。该模型是针对日本钢周期中Cr和Ni的流动实施的，涉及27种钢种和115种最终产品。结果发现，在高等级的废料分类中，可以保留100％以上的时间的Cr和Ni初始功能的70％以上，而在低等级的分类下可能降至不到30％ ％，证明了废物管理技术在循环经济政策中的重要性。

著录项

  • 来源
    《Environmental Science & Technology》 |2017年第17期|9469-9476|共8页
  • 作者

    Shinichiro Nakamura; Yasushi Kondo; Kenichi Nakajima; Hajime Ohno; Stefan Pauliuk;

  • 作者单位

    Graduate School of Economics, Waseda University, Tokyo, 169-8050, Japan;

    Graduate School of Economics, Waseda University, Tokyo, 169-8050, Japan;

    Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Tsukuba, 305-8506, Japan;

    Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan;

    Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, 79085, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号