Investigation on the Status of the Reconstructive Projects for SCR De-NOx Under the Condition of Ultra-low Emission

doi:10.11930/j.issn.1004-9649.201801033

Abstract

Abstract: In order to meet the requirements of the Plan of Action for Energy-saving and Emission-reduction upgrading and Reconstruction of Coal and Power plants (2014-2020), reconstructive projects of ultra-low emissions have been carried out in many coal-fired power plants. To provide reference for the design and construction of flue gas denitration for ultra-low emission units, investigation on the catalyst status is conducted for 132 units in 49 power plants whose flue gas denitration ultra low emission retrofits had been completed. The unit type, flue gas temperature, inlet dust concentration, inlet NO_x concentration and modification of catalysts are analyzed. The catalyst volumes before and after the ultra-low emission retrofit are compared. At the same time, some proposals based on case analysis are given to guarantee the security and economical operation and the standardized NO_x emission.

Key words: ultra-low emission, SCR De-NO_x catalyst, NO_x, De-NO_x efficiency, standard emmision, operation cost

CLC Number:

X511
TM621.9

YAN Min, ZHANG Yang, ZHU Yue, JIANG Jianpingg. Investigation on the Status of the Reconstructive Projects for SCR De-NO_x Under the Condition of Ultra-low Emission[J]. Electric Power, 2018, 51(11): 163-167.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201801033

https://www.electricpower.com.cn/EN/Y2018/V51/I11/163

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Investigation on the Status of the Reconstructive Projects for SCR De-NO_x Under the Condition of Ultra-low Emission

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