Experiment Study of the Pilot Ammonia SCR System in a Coal-Fired Power Plant

Author

Xu Hong ; Yan Zhi-Yong ; Xu, Xu ; Wang Yu

Author_Institution

Dept. of Thermal Power Eng., China Jiliang Univ., Hangzhou, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

4

Abstract

To comply with more stringent nitrogen oxides (NO_x) emissions regulations in China, selective catalyst reduction (SCR) technology is widely studied and used in coal-fired power plants. A series of pilot flue gas ammonia (NH₃) SCR experiments were completed at a pulverized coal power plant in Zhejiang Province. Flue gas flux rate, particulate matter (PM) concentration, the denitration efficiency and other important parameters were tested and calculated. Experiment results showed that NO_x removal efficiency of in the pilot experiment was above 90%. The PM concentration of the flue gas in the SCR system was 18.8g/Nm³, and the NH₃/NO_x mole ratio is 0.95. The pilot SCR systems operated considerably well during the experiments and NO_x emissions could meet the current standards for coal-fired power plants.

Keywords

ammonia; catalysts; coal; flue gases; nitrogen compounds; pulverised fuels; steam power stations; NH₃; NO; coal-fired power plant; denitration efficiency; flue gas flux rate; mole ratio; particulate matter concentration; pilot ammonia SCR system; pilot flue gas ammonia; pulverized coal power plant; selective catalyst reduction; Boilers; Coal; Inductors; Nitrogen; Power generation; Temperature measurement; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748829

Filename

5748829