Comparison of ammonia preparing scheme for deNOx system of thermal power plant

Abstract

Abstract: In thermal power plants, there are four types of ammonia supply sources for SCR deNOx devices, which are the liquid ammonia, the aqueous ammonia, the pyrolyzed urea and the hydrolyzed urea. According to technical and economic comparative analyses, it was confirmed that in the investment cost, the operating cost, the operation and management safety and other respects, the pyrolyzed urea and the liquid ammonia have advantages and disadvantages respectively, and they all can be used as appropriate ammonia supply source for large unit.

Key words: selective catalytic reduction (SCR) method, deNOx, ammonia, preparing scheme, comparative analysis

MA Qianli. Comparison of ammonia preparing scheme for deNOx system of thermal power plant[J]. Huadian Technology, 2011, 33(12): 58-59.

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Comparison of ammonia preparing scheme for deNOx system of thermal power plant

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