Fundamental Analysis of NO_x Emission Behavior during the Combustion of Refuse Derived Fuel (RDF)

Abstract

In this paper, the catalytic effect of both Cl contained within RDF and addition of Ca on NO_x generation during RDF combustion in fluidized beds are discussed. NO_x generation was examined using a simulated flue gas permeation test with NH₃ through a limestone particle packed bed. It was confirmed that mixing with gaseous HCl increased NO_x conversion. After the permeation test with gaseous HCl, fine particles below 1μm in diameter were formed on the surface of the limestone particles. It appears that the increased surface area of the limestone particles promoted the catalytic effect on NO_x generation.