Study on Pulverized Coal Combustion in O2/CO2 Atmosphere

Author

Gu, Mingyan ; Dong, Hongyan ; Liu, Xuhui ; Li, Jiaxin

Author_Institution

Dept. of Metall. & Resource, Anhui Univ. of Technol., Ma´´anshan, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

4

Abstract

The pulverized coal combustion in O₂/CO₂ atmosphere is one of the promising new technologies which can reduce the emission of carbon dioxide and NO_x. In this study, a three dimensional mathematical multiphase CFD model has been developed to simulate the combustion characteristics of pulverized coal in the atmospheres of O₂/CO₂. It was observed that the combustion characters of pulverized coal show great differently compared with the coal combustion process in the air. The flame temperature decreases when the gas N₂ is replaced by CO₂. Also, the gas temperature is affected by the O₂/CO₂ ratio in O₂/CO₂ atmosphere.

Keywords

carbon compounds; coal; combustion; computational fluid dynamics; global warming; multiphase flow; CO₂; O₂; carbon dioxide emission; coal combustion process; combustion characteristics; flame temperature; global warming; pulverized coal combustion; three dimensional mathematical multiphase CFD model; Atmospheric modeling; Coal; Combustion; Fires; Mathematical model; Temperature distribution;

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.2011.5748891

Filename

5748891