Kinetic study of fuel NO formation from pyrrole type nitrogen

► The reaction mechanism of fuel NO formation from pyrrole have been investigated experimentally and numerically. ► Pyrrole is mainly converted into N2 or NO by way of HCN. ► The main reaction pathways from pyrrole to HCN are direct reaction by pyrrole pyrolysis and pyrolysis reaction of HNCPROP. ► HCN is converted to N2 or NO via NCO and about 90% of nitrogen in pyrrole is transformed to N2 or NO.