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首页> 外文期刊>Journal of Cleaner Production >Reducing polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) emissions from a real-scale iron ore sinter plant by adjusting its sinter raw mix
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Reducing polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) emissions from a real-scale iron ore sinter plant by adjusting its sinter raw mix

机译：通过调整烧结矿的原料比例，减少实际铁矿石烧结厂中的多氯二苯并对二恶英和二苯并呋喃（PCDD / F）排放

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摘要

This study was conducted in a real-scale iron ore sinter plant for reducing emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) from the iron ore sintering process via the adjustment of its sinter raw mix. Based on operating condition of the selected plant, four experimental campaigns of C-ref (currently used raw mix, served as the reference), C-H (modified from C-ref, with a 15% increase in hematite but 15% decrease in limonite), C-H,C-EP (modified from C-H, without electrostatic precipitator (EP) and blast furnace (BF) flue dusts), and C-H,C-EP,C-W (modified from C-H,C-EP, with a 0.5 wt% increase in water content) were chosen. For each experimental campaign, three replicate samples of PCDD/Fs were collected from the flue gases, and the sinter productivity and sinter strength were measured simultaneously. In comparison with C-ref, the most significant reductions in PCDD/F and I-TEQ emissions was found in C-H,C-EP (=68% and 76%, respectively), and the main reduction was found in PCDFs (54-76% decrease). C-H could reduce emissions of PCDD/Fs and I-TEQ by 47% and 51%, respectively. But the addition of water contents (i.e., C-H,C-EP,C-W) did not result in further reductions. Since sinter productivity and sinter strength of all experimental campaigns were quite similar, C-H,C-EP could be a promising raw mix for reducing PCDD/F emissions from the sintering process. (C) 2015 Elsevier Ltd. All rights reserved.
机译：这项研究是在真实规模的铁矿烧结厂中进行的，目的是通过调整其烧结原料的混合量来减少铁矿烧结过程中多氯二苯并对二恶英和二苯并呋喃（PCDD / Fs）的排放。根据所选工厂的运行状况，进行四次C-ref（当前使用的原始混合物，作为参考），CH（从C-ref改性，赤铁矿增加15％，褐铁矿减少15％）的实验活动，CH，C-EP（由CH改性，不含静电除尘器（EP）和高炉（BF）烟道粉尘）和CH，C-EP，CW（由CH，C-EP改性，增加0.5 wt％在水含量）。对于每个实验活动，从烟气中收集了三个重复的PCDD / Fs样品，并同时测量了烧结生产率和烧结强度。与C-ref相比，CH，C-EP的PCDD / F和I-TEQ排放量的减少幅度最大（分别为68％和76％），而PCDF的减少幅度最大（54-减少了76％）。 C-H可使PCDD / Fs和I-TEQ的排放分别减少47％和51％。但是添加水含量（即C-H，C-EP，C-W）并没有导致进一步的减少。由于所有实验活动的烧结生产率和烧结强度都非常相似，因此C-H，C-EP可能是减少烧结过程中PCDD / F排放的有前途的原料。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Journal of Cleaner Production》 |2016年第1期|1184-1189|共6页
  • 作者

    Chen Yu-Cheng; Kuo Yu-Chieh; Chen Mei-Ru; Wang Ying-Fang; Chen Ching-Hwa; Lin Ming-Yeng; Yoon Chungsik; Tsai Perng-Jy;

  • 作者单位

    Natl Hlth Res Inst, Natl Environm Hlth Res Ctr, Miaoli, Taiwan;

    Natl Hlth Res Inst, Div Environm Hlth & Occupat Med, Miaoli, Taiwan;

    Chung Hwa Univ Med Technol, Dept Occupat Safety & Hlth, Tainan 71703, Taiwan;

    Natl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan;

    Natl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan;

    Natl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan;

    Seoul Natl Univ, Grad Sch Publ Hlth, Dept Environm Hlth, Seoul 151742, South Korea;

    Natl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan;

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  • 正文语种 eng
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  • 关键词

    PCDD/Fs; Emission control; Iron ore; Sinter plant; Raw mix;

    机译：PCDD / Fs;排放控制;铁矿石;烧结厂;原料混合物;

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