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The spatial-temporal pattern of sintered flue gas emissions in iron and steel enterprises of China

机译：中国钢铁企业烧结烟气排放的空间模式

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摘要

This study provides a comprehensive survey of emissions from the sintering process in China to give an indication of the actual emission situation. Survey data were taken from China's continuous emission monitoring system (CEMS) from 209 sintering plants from 2015 to 2016. The standard-reaching rate of national emissions and the oxygen content ratio of the sintering process were considered as two indicators to evaluate the emissions level. Moreover, the CEMS-based emission factor (EF) estimation method was applied to improve the accuracy of EF estimation compared with existing methods. The emission concentration of total suspended particles (PMTPS), SO2 and NOx decreased, and the standardreaching rate of these three pollutants increased from 92%, 94% and 98%, respectively, to almost 100% during the research period. The average emission concentration in eastern China was lower than that in western China. More samples exceeded the oxygen regulation of 16% in 2016 than in 2015. This indicates that most plants should control air leakage to decrease the oxygen content. The national monthly average EF of PMTPS and SO2 decreased from 0.013 to 0.009 kg/ton-sintering and from 0.036 to 0.026 kg/ ton, respectively, during the research period. The EF of NOx remained around 0.068 kg/ton. These results are much lower than the results of former studies. (c) 2020 Elsevier Ltd. All rights reserved.
机译：本研究提供了对中国烧结过程的综合调查，以指示实际排放情况。调查数据从2015年到2016年到2016年的209次烧结植物中的持续排放监测系统（CEM）。烧结过程的标准达到的国家排放和氧气含量比视为评估排放水平的两个指标。此外，应用基于CEMS的排放因子（EF）估计方法，提高了与现有方法相比的EF估计的准确性。总悬浮颗粒（PMTPS），SO2和NOx的排放浓度降低，这三个污染物的标准化率分别从92％，94％和98％增加到研究期间近100％。中国东部的平均排放浓度低于中国西部。更多样品超过2016年的氧气调节比2015年的16％。这表明大多数植物应控制空气泄漏以降低氧含量。 PMTPS和SO2的全国月平均EF在研究期间，分别从0.013降至0.013至0.009公斤/吨/吨，分别为0.036至0.026千克/吨。 NOx的EF仍保持约0.068千克/吨。这些结果远低于前研究的结果。 （c）2020 elestvier有限公司保留所有权利。

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  • 来源
    《Journal of Cleaner Production》 |2020年第1期|121667.1-121667.12|共12页
  • 作者

    Bo Xin; Li Zhaoling; Qu Jiabao; Cai Bofeng; Zhou Beihai; Sun Lu; Cui Weigeng; Zhao Xiaohong; Tian Jun; Kan Hui;

  • 作者单位

    Univ Sci & Technol Beijing Sch Energy & Environm Engn Beijing 100083 Peoples R China|Minist Environm Protect Appraisal Ctr Environm & Engn Beijing 100012 Peoples R China;

    Natl Inst Environm Studies NIES Ctr Social & Environm Syst Res 16-2 Onogawa Tsukuba Ibaraki 3058506 Japan;

    Minist Environm Protect Appraisal Ctr Environm & Engn Beijing 100012 Peoples R China|HeBei Univ Sci & Technol Sch Sci & Technol Environm Shijiazhuang 050000 Hebei Peoples R China;

    Chinese Acad Environm Planning Ctr Climate Change & Environm Policy Beijing 100012 Peoples R China;

    Univ Sci & Technol Beijing Sch Energy & Environm Engn Beijing 100083 Peoples R China;

    Natl Inst Environm Studies NIES Ctr Social & Environm Syst Res 16-2 Onogawa Tsukuba Ibaraki 3058506 Japan|Univ Tokyo Grad Sch Frontier Sci Dept Environm Syst 5-1-5 Kashiwanoha Kashiwa Chiba 2778563 Japan;

    Changan Univ Sch Earth Sci & Resources Xian 710054 Peoples R China;

    Minist Environm Protect Appraisal Ctr Environm & Engn Beijing 100012 Peoples R China;

    Nanjing Univ Acad Environm Planning & Design Co Ltd Nanjing 210093 Peoples R China;

    Nanjing Univ Acad Environm Planning & Design Co Ltd Nanjing 210093 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Sintered flue gas emissions; China; Continuous emission monitoring system; Emissions standard-reaching rate; Oxygen content;

    机译：烧结烟气排放;中国;连续排放监测系统;排放标准率;氧含量;

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