Investigation of the System Coupling Regenerative Heat Exchange and Selective Catalytic Reduction for Heat Exchange and NOx Removal

Zhong Jun Tian; Shi Ping Jin; Yu Ming Liang

doi:10.4028/www.scientific.net/AMR.955-959.2087

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 955-959Investigation of the System Coupling Regenerative...

Investigation of the System Coupling Regenerative Heat Exchange and Selective Catalytic Reduction for Heat Exchange and NO_x Removal

Abstract:

In conjunction with theoretical heat exchange model, experimental investigations have been conducted for a coupled system of Selective Catalytic Reduction (SCR) and Regenerative Heat Exchange (RHE), to reduce nitrogen oxides (NO_x) from coal-fired boilers and High Temperature Air Combustion (HiTAC) furnaces. Results indicate there is no effect of catalysis reactions on heat transfer; catalysts serve the function of heating elements. The outlet NO concentration periodically decreased in an almost linear fashion. NO conversion: i) rose slowly with a longer switching time; and ii) reached the peak value of temperature with a delay compared with the steady state. The coupled system requires less space and hence is a suitable option for SCR renovations in coal-fired power plants.

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Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

2087-2092

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.2087

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Online since:

June 2014

Authors:

Zhong Jun Tian, Shi Ping Jin*, Yu Ming Liang

Keywords:

HITAC, NO Conversion, Regenerative Heat Exchange, SCR

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