In 2005, it was published a paper in Brazil reporting
significant values of aldehydes emissions for some old Brazilian
diesel SUVs (Sport Utility Vehicles). In 2008, PETROBRAS (Brazilian
Oil Company) together with LACTEC (Institute of Technology for
Development) decided to study methods for measuring aldehydes from
diesel vehicles, including SUVs and heavy-duty engines.
In 2008, National Environmental Council (CONAMA) published
legislation 408/08, establishing that IBAMA (Brazilian National
Environmental Institute) must provide a procedure for aldehyde
measurement at the end of December 2010 and that engine
manufacturers must report typical aldehyde emission values of
diesel vehicles before the end of December 2012.
A technical group was created in 2009 by the Brazilian
Automotive Engineering Association (AEA) to discuss and elaborate a
new method for aldehyde measurement in diesel vehicles and
heavy-duty engines. The new procedure must be published before the
end of 2010.
This paper will present a bibliography review of aldehyde
formation in diesel vehicles and will show some proposal methods
studied by PETROBRAS and LACTEC to measure these pollutants,
including the use of HPLC (High Performance liquid Chromatography)
and FTIR (Fourier Transform InfraRed Analyzer).