Effect of High-Dust Flue Gas on Catalyst Performance

doi:10.3969/j.issn.1000－7229.2015.04.015

Abstract

Abstract:

The de-NOx catalyst developed for the high-dust flue gas in power plant was successfully applied in denitration system for 2×600 MW units in a power plant. The characteristics of denitration system and the conditions of flue gas in this power plant were introduced, as well as the design and selection of the de-NOx catalyst, the acceptance of denitration engineering and the changes of various performance parameters of de-NOx catalyst used for 18 months. The results show that the application of de-NOx catalyst developed for the high-dust flue gas for 3 months is very well. The denitration efficiency which reaches about 83.9% is significant, and the NOx concentration is reduced to about 73.7 mg/m3 in the flue gas. Simultaneously, the amount of ammonia slip, SO2/SO3 conversion rate, and the loss of system pressure are better than the design value. In addition, after used in the high-dust flue gas for 18 months, various performance of the de-NOx catalyst is normal, and wear resistance is excellent.

Key words: denitration in power plant, selective catalytic reduction catalyst, high-dust flue gas

CLC Number:

TM 621
X 511

LIU Hanqiang, YANG Jianhui, ZHEN Zhi, LU Guangjie. Effect of High-Dust Flue Gas on Catalyst Performance[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(4): 91-94.

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