Evaluation on nitrogen conversion during biomass torrefaction and its blend co-combustion with coal

In this work, biomass torrefaction was combined with coal co-combustion to illustrate the differences in performance and mechanisms of migration transformation nitrogen over entire course thermal treatments. XPS analysis illustrated that CO2 suppressed conversion pyrrole-N (N-5) quaternary-N (N-Q), whereas trend for an O2 atmosphere moved opposite direction. During co-combustion, impact on NO emission reduction shifted from positive negative as pretreatment temperature raised, which is closely related six elementary reactions involving intermediacy NCO NH, well heterogeneous char. addition, a N2/O2 at lower 250 °C improved properties achieved lowest during provides supporting theory needed using effluent power plants medium.