Peroxyacyl Nitrates: Investigation of the Mechanisms of Their - PowerPoint PPT Presentation

Institute of Chemical Kinetics and Combustion SB RAS Novosibirsk, Russia International conference on environmental observations, modeling and information systems (ENVIROMIS-2012), Russia, Irkutsk June 24 - July 2, 2012 Peroxyacyl Nitrates: Investigation of the Mechanisms of Their Formation in the Atmosphere Tatiana A. Maksimova, Galina G. Dultseva, Sergei N. Dubtsov, Galina I. Skubnevskaya

Research area Peroxyacyl nitrates (PANs) R = CH 3 O O Peroxyacetyl O C O + NO 2 RC OO + O N nitrate (PAN) R - R = C 6 H 6 O Peroxybenzoyl h ν nitrate (PBzN) Goal of the work: to reveal whether PANs are formed via O photolysis of the mixture + O 2 C “aldehyde + NO 2 ” H R

Experimental approach ► chromatographic analysis of gas products by means of absorption in acetonitrile or in isopropyl alcohol ► NICK2.2 computer simulation ► photolysis investigation of reactant gases (aldehyde and NO 2 ) itself and in their mixture ► air measurements (NO 2 and aldehydes concentration): polluted air, flame, exhaust