Fly ash utilization for the development of low NO_x bed materials

Screening tests for NO catalytic decomposition and NO catalytic reduction by CO on a series of fly-ash-derived materials have been carried out at FBC temperatures in a fixed bed quartz reactor. The samples prepared directly from biomass fly ashes appeared to have very high catalytic effects toward NO reduction by CO. Meanwhile, no activity was observed for catalytic decomposition of NO on the tested samples.