Effect of Cement Raw Meal on the NO Reduction by Biomass Char

摘要

The influence of cement raw meal on the NO reduction by biomass char at a high temperature of 900 °C with four O_2 concentrations of 1%, 3%, 5% and 8% was investigated in a laboratory scale fixed bed quartz reactor. The results showed that the cement raw meal had certain positive effect on NO reduction by biomass char which promotes dissociation adsorption of NO with the help of CO consumption and oxygen transferred to carbon surface, however, it also shows some negative effect, and the degree depends on O_2 concentration. A long-time and high NO reduction rate was obtained in the case of 1% O_2 concentration.