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Life Cycle Assessment of Comprehensive Utilization of Calcium Carbide Slag in Cement Kiln

机译：水泥窑综合利用综合利用生命周期评价

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摘要

The recycling utilization of solid waste is an important technical means for the sustainable development of the cement industry in China. Calcium carbide slag is a special solid waste in China, which can be used for cement production with a great advantage on CO_2 emission reduction. With an view to providing methodological and data support for the development of policies in the cement industry, this paper quantitatively analyzes the environmental effects/environmental benefits of the comprehensive utilization of calcium carbide slag in cement kiln by comparing the traditional system of Portland cement clinker completely produced by natural resources with the system of cement clinker produced by calcium carbide slag based on the life cycle assessment (LCA) method given in standards and specifications of ISO 14040 series. The results show that the latter system has a better effect in material saving and carbon emission reduction, will increase the energy consumption in cement production process, and also slightly increase other pollutants (e.g. SOx, NOx, etc.) emission. The GWP, AP and EP indicators of the calcium carbide slag cement clinker system decrease compared with those of the Portland cement clinker system, while other indicators do not differ much or even slightly increase.
机译：固体废物的再循环利用是中国水泥行业可持续发展的重要技术手段。碳化钙渣是中国的特殊垃圾，可用于水泥生产，在CO_2减排中具有很大的优势。本文通过比较Portland Cement Clinker的传统系统完全通过比较Portland Cement Clinker完全通过比较完全分析了水泥行业在水泥行业中的政策方面的制定的制定的方法，分析了水泥窑中综合利用的环境影响/环境效益通过基于ISO 14040系列标准的生命周期评估（LCA）方法，通过碳化物渣产生的水泥熟料系统产生的天然资源生产。结果表明，后一系列在材料节省和碳排放减少方面具有更好的效果，将提高水泥生产过程中的能源消耗，并略微增加其他污染物（例如SOX，NOX等）排放。与波特兰水泥熟料系统相比，碳化物渣水泥熟料系统的GWP，AP和EP指示器减少，而其他指示剂没有多大差异甚至略微增加。

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  • 来源
    《Materials science forum》 |2020年第2期|1487-1495|共9页
  • 作者

    Xinping Lin; Aiwei Liu; Yunfa Feng; Qiling Chen; Tao Chen; Liwei Hao; Xiaoqing Li;

  • 作者单位

    National Engineering Laboratory for Industrial Big-data Application Technology Beijing 100124 China;

    Beijing University of Technology The Key Laboratory of Advanced Functional Materials Ministry of Education of China Beijing 100124 China;

    Beijing University of Technology The Key Laboratory of Advanced Functional Materials Ministry of Education of China Beijing 100124 China;

    Beijing University of Technology The Key Laboratory of Advanced Functional Materials Ministry of Education of China Beijing 100124 China;

    Beijing University of Technology The Key Laboratory of Advanced Functional Materials Ministry of Education of China Beijing 100124 China;

    Beijing Building Materials Academy of Sciences Research / State Key Laboratory of Solid Waste Reuse for Building Materials Beijing 100041 China;

    National Engineering Laboratory for Industrial Big-data Application Technology Beijing 100124 China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cement; Waste utilization; Life cycle assessment; Calcium carbide slag;

    机译：水泥;废物利用;生命周期评估;碳化钙渣;

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