Theoretical Studies of the Emission Rule of SO2 and NOx in Iron Ore Sintering

Author

Pan, Jian ; Zhu, Deqing ; Zhou, Xianlin ; Luo, Yanhong

Author_Institution

Dept. of Iron & Steel, Central South Univ., Changsha, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

5

Abstract

Theoretical studies of the emission rule of SO₂ and NOx during iron ore sintering was conducted, it is put forward that the emission of SO₂ possesses the characteristics of self-sustaining which means the emission of SO₂ rises to a peak value rapidly just before the sintering end point and then declines dramatically no matter how parameters of sinter technology and the properties of raw material change. It is also revealed that emission of NOx in sintering flue gas is originated primarily from the combustion of gas fuel during ignition and solid fuel in sintering bed. Compared with the emission rule of SO₂ during sintering, the emission rule of NOx is quite different. From the finish of ignition to the end of sintering, the concentration of NOx in the flue gas always maintaines at a high level.

Keywords

air pollution; combustion; flue gases; ignition; iron alloys; nitrogen compounds; sintering; sulphur compounds; NO_x; SO₂; combustion; emission rule; gas fuel; ignition; iron ore sintering; sintering bed; sintering end point; sintering flue gas; solid fuel; Environmentally friendly manufacturing techniques; Flue gases; Fuels; Industrial pollution; Iron; Metals industry; Nitrogen; Rain; Raw materials; Steel;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5516758

Filename

5516758