NOx Emission Reduction in Flue Gas of Coal Fired Thermal Power Station and its Control Measures by Secondary Measures
T. P. Meikandaan1, M. Hemapriya2, V. Vidhya3
1T. P. Meikandaan, Department of Civil Engineering, Bharath Institute of Higher Education and Research, Selaiyur, Chennai (Tamil Nadu), India.
2M. Hemapriya, Department of Civil Engineering, Bharath Institute of Higher Education and Research, Selaiyur, Chennai (Tamil Nadu), India.
3V. Vidhya, Department of Civil Engineering, Bharath Institute of Higher Education and Research, Selaiyur, Chennai (Tamil Nadu), India.
Manuscript received on 05 November 2019 | Revised Manuscript received on 13 December 2019 | Manuscript Published on 31 December 2019 | PP: 83-88 | Volume-9 Issue-2S4 December 2019 | Retrieval Number: B10811292S419/2019©BEIESP | DOI: 10.35940/ijitee.B1081.1292S419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The ever increasing demand for power is mostly met out by electricity produced with the available resources. One such source where generation of power is by making use of the fossil fuel such as coal. Thermal generation using coal accounts for 69% of the total power produced in India. Flue Gases emitted from coal fired thermal stations consists of CO2,(Carbon-di-oxide),SOx (Oxides of Sulphur), NOx (Oxides of Nitrogen), PM (Particulate matter) along with carbonaceous material, soot and Fly ash. These gaseous pollutants are considered as environmental burden which ultimately results in smog formation, formation of acid rain, eutrophication and global warming which has to be controlled and regulated within the permissible limits as stipulated by MOEF &CC (Ministry of Environmental Forest and Climate Change). This project describes about the analysis of reduction of NOx Emission in Flue Gas of Coal fired thermal stations and the measures to control the NOx emission within the permissible limits for the new thermal power plants by treating the flue gas emitted from the stack. The secondary measure to reduce the NOx emission is achieved by treating the flue gas with urea or ammonia which bring about 90% NOx emission reduction. The application of Low Nox Burner with Over Fire Air Technology along with Selective Catalytic Reduction in the new thermal power plant reduce the emission of NOx to a considerable extent and to meet the norms.
Keywords: Low NOx Burner, Over Fire Air, SCR, SNCR, NSCR.
Scope of the Article: Fire Engineering