Preparation and Performance of Binary Copper-Cobalt Based Catalyst Used for Low Temperature Selective Catalytic Reduction of NOX

Abstract

Low-temperature urea-SCR technology is a new type of low temperature denitration technology, which could achieve the removal of NOX in low temperature (50–100°C) flue gas, and avoid the ammonia escape problem of traditional NH3-SCR technology. In this paper, a series of binary Cu-Co based composite catalysts with different Cu-Co loading ratios (0.1: 0.9–0.9: 0.1) were prepared at calcination temperatures of 300–600°C, and their preparation parameters were optimized. The experimental results showed that when the calcination temperature was 500°C and the Cu-Co loading ratio was 0.9: 0.1, the Cu-Co-based binary catalyst had the highest low-temperature denitration performance. Finally, the XRD analysis of the phase composition for the Cu0.9Co0.1/NUAC catalyst was carried out in this paper.