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

▶

Jan 11, 2024 238 likes •282 views

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:

SLIDE 1

Institute of Chemical Kinetics and Combustion SB RAS Novosibirsk, Russia

Peroxyacyl Nitrates: Investigation

f the Mechanisms of Their

Formation in the Atmosphere

Tatiana A. Maksimova, Galina G. Dultseva, Sergei N. Dubtsov, Galina I. Skubnevskaya

International conference on environmental observations, modeling and information systems (ENVIROMIS-2012), Russia, Irkutsk June 24 - July 2, 2012

SLIDE 2

Research area Peroxyacyl nitrates (PANs)

R C O O O N O O

R = CH3

R = C6H6

Peroxyacetyl nitrate (PAN) Peroxybenzoyl nitrate (PBzN)

RC OO O + NO2

hν

C H O R

+ O2 Goal of the work: to reveal whether PANs are formed via photolysis of the mixture “aldehyde + NO2”

SLIDE 3

Experimental approach

► NICK2.2 computer simulation ► chromatographic analysis of gas products by means of absorption in acetonitrile or in isopropyl alcohol ► photolysis investigation of reactant gases (aldehyde and NO2) itself and in their mixture ► air measurements (NO2 and aldehydes concentration): polluted air, flame, exhaust