Operating condition influences on PCDD/Fs emissions from sinter pot tests with hot flue gas recycling
文献类型：期刊论文
| 作者 | Yu, Yongmei ; Zheng, Minghui ; Li, Xianwei ; He, Xiaolei |
| 刊名 | Environmental Sciences & Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 24期号:5页码:875-881 |
| ISSN号 | 1001-0742 |
| 关键词 | PCDD/Fs sintering recycling flue gas formation mechanism |
| 中文摘要 | This study was designed to clarify the influence of operating conditions on the formation and emissions of polychlorinated-p-dibenzodioxins and dibenzofurans (PCDD/Fs) from a sintering process with hot flue gas recycling. A pilot scale sinter pot with simulated flue gas recycling was developed, and four key operational parameters, including temperature, oxygen content of the simulated waste flue gas, the coke rate of the sintering mixture, and the quicklime quality, were selected for exploring PCDD/Fs formation. The results showed that the temperature of the recycled flue gas had a major affect on PCDD/Fs formation, and a high temperature could significantly increase their formation during sintering. A clear linear correlation between the temperature of recycling flue gas and PCDD/Fs emission (r = 0.93) was found. PCDD/Fs could be reduced to a certain extent by decreasing the level of oxygen in the recycled flue gas, while sintering quality was unchanged. The coke rate had no significant influence on the formation of PCDD/Fs, but the quality of quicklime used in the sintering mixture could affect not only the amount of PCDD/Fs emissions but also the sintering productivity. Compared with a benchmark sinter pot test, PCDD/Fs emissions markedly decreased with improvements to quicklime quality. However, the reduction in PCDD/Fs emissions realized by using high-quality quicklime was limited by the temperature of the inlet gas. The highest reduction achieved was 51% compared with conventional quicklime when the temperature of the inlet gas was 150 degrees C. |
| WOS记录号 | WOS:000304632700014 |
| 公开日期 | 2014-11-27 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8071]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yu, Yongmei,Zheng, Minghui,Li, Xianwei,et al. Operating condition influences on PCDD/Fs emissions from sinter pot tests with hot flue gas recycling[J]. Environmental Sciences & Ecology,2012,24(5):875-881. |
| APA | Yu, Yongmei,Zheng, Minghui,Li, Xianwei,&He, Xiaolei.(2012).Operating condition influences on PCDD/Fs emissions from sinter pot tests with hot flue gas recycling.Environmental Sciences & Ecology,24(5),875-881. |
| MLA | Yu, Yongmei,et al."Operating condition influences on PCDD/Fs emissions from sinter pot tests with hot flue gas recycling".Environmental Sciences & Ecology 24.5(2012):875-881. |
入库方式： OAI收割
来源：生态环境研究中心
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