| Title: | The ignored emission of volatile organic compounds from iron ore sinter process |
| Author(s): | Li J; He X; Pei B; Li X; Ying D; Wang Y; Jia J; |
| Address: | "School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address: lijuexiu@sjtu.edu.cn. Iron-Making Plant, Taiyuan Iron &Steel (Group) Co., Ltd. (TISCO), Taiyuan 030003, China. Shanghai Environmental Monitoring Center, Shanghai 200235, China. Central Research Institute (Technology Center), China Baowu Steel Group Corporation, Shanghai 201900, China. School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China. Electronic address: jpjia@sjtu.edu.cn" |
| DOI: | 10.1016/j.jes.2018.08.007 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "Iron ore sintering is a major source of gaseous and particulate pollutants emission in iron smelt plant. The aim of present study is to characterize the volatile organic compounds (VOCs) emission profiles from iron ore sintering process. Both sinter pot test and sinter simulation experiment were conducted and compared. Out results showed that sinter process produced large quantity of VOCs together with NO(x) and SO(2). VOCs and NO were produced simultaneously in sinter pot test from 3 to 24 min after ignition, flowed by SO(2) production from 15 min to the end of sintering. Total VOCs (TVOC) concentration in sinter flue gas was affected by the coal and coke ratio in sinter raw material. The maximum TVOC concentration was 34.5 ppm when using 100% coal as fuel. Sinter simulation experiments found that the number of VOCs species and their concentrations were found by sinter temperature. The largest VOCs species varieties were obtained at 500 degrees C. Benzene, toluene, xylene and ethylbenzene were major VOCs in sinter flue gas based on the results from both simulation test and sinter pot. It thus demonstrated that in addition to NO(x), SO(2) and metal oxide particles, sinter flue gas also contained significant amount of VOCs whose environmental impact cannot be ignored. Based on our work, it is timely needed to establish a new VOC emission standard for sinter flue gas and develop advanced techniques to simultaneously eliminate multi-pollutants in iron ore sinter process" |
| Keywords: | Hot Temperature Iron/*chemistry Oxides/chemistry Particulate Matter/chemistry Volatile Organic Compounds/*chemistry Emission Flue gas Iron ore sinter VOCs; |
| Notes: | "MedlineLi, Juexiu He, Xiaoping Pei, Bing Li, Xianwei Ying, Diwen Wang, Yalin Jia, Jinping eng Netherlands 2018/12/24 J Environ Sci (China). 2019 Mar; 77:282-290. doi: 10.1016/j.jes.2018.08.007. Epub 2018 Sep 7" |
