Study on NOX formation of coal-fired utility boilers affected by fuel characteristics

Author

Li, Fang-qin ; Li, He-nan ; Hao, Zhi-wu ; Li, Van-chao ; Ren, Jian-xing ; Yongwen, Yang ; Qingrong, Liu ; Zhongzhu, Qiu

Author_Institution

Energy & Environ. Eng., Shanghai Univ. of Electr. Power, Shanghai, China

Volume

2

fYear

2011

fDate

20-22 May 2011

Firstpage

1659

Lastpage

1661

Abstract

There are many factors effecting on the NOx formation and fuel characteristics are one of them. Two kinds of coal in common use by one 300MW coal-fired generating unit were chose as typical fuels. Experimentations and numerical simulations were done to study the effects of coal characteristics on NOx formation. The results of experimentations and numerical simulations were similar. In elemental analysis, nitrogen content of coal 1 was 0.81%, coal 2 was 0.83%. However, the NOx formation of burning coal 1 was higher than that of burning coal 2. Although nitrogen content of coal 2 was more than that of coal 1, the nitrogen molecular fraction of coal 1(0.813%) was higher than that of coal 2 (0.716%).

Keywords

boilers; coal; numerical analysis; pulverised fuels; NO_x; burning coal; coal-fired generating unit; coal-fired utility boilers; elemental analysis; fuel characteristics; nitrogen content; nitrogen molecular fraction; numerical simulations; power 300 MW; Combustion; Nitrogen; Numerical models; NOx formation; experimentation; fuel characteristic; numerical simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-749-8

Type

conf

DOI

10.1109/ICMREE.2011.5930652

Filename

5930652