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Promoted selective non-catalytic reduction of nox from combustion effluent

Abul Hossain, Khandoker and Mohd. Jaafar, Mohammad Nazri and Ani, Farid Nasir (2003) Promoted selective non-catalytic reduction of nox from combustion effluent. In: International Symposium On Renewable Energy: Environment Protection Energy Solution for Sustainable Develpoment, 14-17 Sep. 2003, Kuala Lumpur.

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In last decade, a significant numbers of NOx reduction technologies have been developed and among these, the post combustion technologies, specifically, Selective Catalytic Reduction (SCR) and Selective Non-Catalytic Reduction (SNCR) technologies are being regarded most effective which are being well accepted and retrofitted to the existing industries. In comparison to SCR, SNCR is easier to retrofit and as it has no need catalytic bed, it is a cost effective method for controlling NOx emission in many industries. Yet, SNCR is limited by narrow temperature window, higher ammonia slip and low utilization of NOx reducing agents, these limitations can be greatly alleviated by promoted SNCR process, where the small amounts of different water dispersible inorganic or organic compounds are added with the NOx reducing agent and introducing the solution into an effluent from the combustion of a carbonaceous fuel under oxygen-rich condition. The SNCR can achieve a maximum of 70% NOx reduction, whilst in promoted SNCR the NOx reduction is reported about 80-90% by most researchers. The detailed mechanism of the SNCR, the additives and the techniques of using different additives are reviewed. A wide range of additives and NOx reducing agents and their simple and cheap techniques of application make the process highly acceptable to the industries

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Additives, Afterburners, Ammonia, Combustion, Comparative Evaluations, Cost, Emission, Fuels, Industry, Mathematical Solutions, Organic Compounds, Oxygen, Reducing Agents, Selective Catalytic Reduction, Slip, Solutions, Uses, Water, Windows
Subjects:T Technology > TD Environmental technology. Sanitary engineering
Divisions:Mechanical Engineering
ID Code:22621
Deposited By: Mrs Liza Porijo
Deposited On:10 Sep 2014 04:33
Last Modified:04 Sep 2017 10:31

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