OPEN ACCESS

Articles online

Primary Air Pollutant Emissions and Future Prediction of Iron and Steel Industry in China

Category: Air Toxics

Volume: 15 | Issue: 4 | Pages: 1422-1432
DOI: 10.4209/aaqr.2015.01.0029
PDF | RIS | BibTeX

Xuecheng Wu, Lingjie Zhao, Yongxin Zhang, Chenghang Zheng, Xiang Gao , Kefa Cen

  • State Key Laboratory of Clean Energy Utilisation, Zhejiang University, Hangzhou 310027, China

Highlights

An updated emission inventory of iron and steel industry was developed in China.
Variations in regions and process & technology emissions were analyzed.
Future emissions of each region were projected under possible scenarios.


Abstract

China is the largest iron and steel producing and consuming country in the world, which leads to enormous quantities of emitted air pollutants. Direct emissions of air pollutants from the iron and steel industry in China were estimated by developing a process and technology-based methodology using information of the proportion of pig iron, crude steel, and rolled steel produced from different processes and technology. Emissions of sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matter (PM), volatile organic compound (VOCs), and dioxin (PCDD/Fs) were estimated for the year 2012, and future emissions of major pollutants (SO2, NOx, TSP) were projected up to 2030 based on technology developing trends and emission control policies. According to the estimation, 2222 kt of SO2, 937 kt of NOx, 1886 kt of TSP, 555 kt of PM2.5, 254 kt of VOCs, 618 g I-TEQ of PCDD/Fs was produced in China in 2012. Sintering produced 72.4% of SO2, 49.4% of NOx, 22.5% of TSP, 24.0% of PM2.5, 69.6% of VOCs and 98.0% of PCDD/Fs, which is the main emission source. Through faithful implementation of closing down outdated production and emission control policies, approximately 77%, 49%, 67% and 64% of SO2, NOx, TSP and PCDD/Fs emissions, respectively, could be further reduced in 2012. Emissions in 2020 and 2030 of iron and steel sectors were predicted applying scenario analysis. The removal potential for SO2 and TSP is larger than NOx by improvement of removal facilities, and southwest, northwest, and north China has the largest SO2, NOx, TSP and PCDD/Fs removal potential respectively.

Keywords

Iron and steel industry Emission inventory China Process and technology-based methodology


Related Article

Atmospheric Deposition of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Two Cities of Northern China

Jinning Zhu, Jin Xing, Haiyan Tang, Wen-Jhy Lee , Ping Yan , Kangping Cui, Qianli Huang
Accepted Manuscripts
DOI: 10.4209/aaqr.2017.06.0217
PDF

Part II: PM2.5 and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) in the Ambient Air of Northern China

Jin Xing, Kangping Cui , Haiyan Tang, Wen-Jhy Lee, Lin-Chi Wang, Jinning Zhu , Qianli Huang
Accepted Manuscripts
DOI: 10.4209/aaqr.2017.06.0211
PDF

Atmospheric Deposition of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Two Cities of Southern China

Jinning Zhu, Haiyan Tang, Jin Xing, Wen-Jhy Lee , Ping Yan , Kangping Cui
Volume: 17 | Issue: 7 | Pages: 1798-1810
DOI: 10.4209/aaqr.2017.05.0177
PDF

Part I: PM2.5 and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) in the Ambient Air of Southern China

Haiyan Tang, Kangping Cui , Jin Xing, Jinning Zhu , Wen-Jhy Lee, John Kennedy Mwangi, Yu-Cheng Lee
Volume: 17 | Issue: 6 | Pages: 1550-1569
DOI: 10.4209/aaqr.2017.03.0117
PDF
;