Operation optimization an SCR denitration system in a coalfired power plant

Abstract

Abstract:

In order to reduce the operation cost of SCR denitration system and ensure its efficient, safe and stable operation, it is necessary to optimize the SCR denitration system. Based on the analysis on the existing problems of the system, optimization methods including optimizing flue gas field at the entrance of the system, improving ammonia injection, control the management of catalyst performance and establishing a warning system were proposed to improve the uniformity of ammonianitrogen molar ratio at the entrance, prolong the service life of catalyst and prevent the blockage of air preheaters.

Key words:

font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">SCR denitration system, operation optimization, catalyst, flue gas field, ammonia injection, air preheater, ammoniafont-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">nitrogen molar ratiofont-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">

HU Xiaofu，WANG Yang，WANG Yun，HAO Zheng，WANG Kailiang，LI Wei，WANG Hua，ZHANG Nanji.

Operation optimization an SCR denitration system in a coalfired power plant [J]. Huadian Technology, 2019, 41(10): 12-15.

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Operation optimization an SCR denitration system in a coalfired power plant

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