Reduction in Particulate Matter Concentration by Ammonia Injection in Flue Gas–A Case Study

Article type: Research Article

Authors: Subramaniam, R.S. | Bagchi, S.S. | Jadhav, R.T.

Affiliations: Khaperkheda Thermal Power Station, Khaperkheda, Maharashtra | Koradi Thermal Power Station, Koradi, Dist., Nagpur-44111 | Dept. of Chemistry, RKNEC Engg. College, Nagpur-440013, India

Note: [] Corresponding Author. ssbagchi@rediffmail.com

Abstract: In India coal-fired power plants are equipped with electrostatic precipitators (ESP) to combat the suspended particulate matter emission from the stack. The efficiency of electro precipitator in removal of particulate matter is dependent upon the ability of the particulate matter to accept and release of electric charge. This characteristic of the particulate matter is generally referred to as ash resistivity. An exhaustive literature survey was undertaken to understand the resistivity problem. The resistivity is an electrochemical property and this paper describes the other aspect of ammonia that helps in agglomeration of the particles and enhances the collection efficiency of the electrostatic precipitators.

Keywords: Flue gas conditioning, particulate matter, fly ash, electrostatic precipitator

Journal: Asian Journal of Water, Environment and Pollution, vol. 6, no. 1, pp. 109-112, 2009