Research on Mechanism in the SNCR DeNo_x Process

Abstract

The reaction mechanism of selective non-catalytic reduction on NH3-NO has been investigated experimentally in high temperature. The result has shown several basic conclusions: a) The reaction of NH3-NO is self-sustaining; b) oxygen must be involved in the reaction process of NH3-NO; c) Denitration reaction of NH3-NO in the temperature range centered at T1250K; d) the temperature window for NO removal moves to lower temperature, with adding hydrogen (H2) or hydrogen peroxide (H2O2) as well keeping the width of the window unaltered; e) the reaction is not explosive, and it takes place relatively smoothly in the course of approximately 0.1 sec.