An Experimental Study on Nitric Oxide Reduction through Coal-Biomass Blend Reburning

Abstract:

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Nitric oxide (NO) reduction through coal, biomass and their blend reburning is conducted on a drop tube furnace experimental system and it is proved to be feasible of using the coal-biomass blend as the reburning fuel. For a high NO reduction efficiency, the excess air ratio in the reburning zone should be less than 0.9 and the reaction temperature is required to be higher than 1373K. 50-60% of the biomass percentage in the blend is enough for an acceptable efficiency. At the same time, for a thorough NO reduction process, the reburning fuel fraction and the residence time in the reburning zone must be guaranteed about 20% and 0.6-0.8s, respectively. Also, when the initial NO concentration is excess 600ppm, the efficiency is varied little at different NO concentrations.

Info:

Periodical:

Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan

Pages:

3017-3021

DOI:

10.4028/www.scientific.net/AMR.383-390.3017

Citation:

S. L. Niu et al., "An Experimental Study on Nitric Oxide Reduction through Coal-Biomass Blend Reburning", Advanced Materials Research, Vols. 383-390, pp. 3017-3021, 2012

Online since:

November 2011

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Price:

$35.00

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