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Study of Non-Regulated Exhaust Emissions Using Biodiesels and Impact on a 4 Way Catalyst Efficiency
Technical Paper
2011-24-0194
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work focuses on analysis of fine particles and carbonyl
compounds and the efficiency of a four-way catalytic converter
towards these pollutants using two different biodiesel fuels in 20%
v/v with a reference petroleum diesel. The biodiesel tested are
fatty acid methyl ester (FAME) of soybean oil and fatty acid ethyl
ester (FAEE) produced from Waste Cooking Oil. The combustion of the
reference petroleum diesel (B0) and biodiesel blends was carried
out in the engine of a diesel power generator.
Number size distributions of fine particles (≺10 μm diameter,
named PM10) emitted were obtained using an Electrical Low Pressure
Impactor (ELPI). It is shown that whatever the blend tested,
particles are mainly composed of ultrafine particles with a
diameter less than 0.4 μm. The 4-way catalytic converter allows to
reduce fine particle emission by at least 96.7%. Although the
emission factor is dependent of the composition of the biodiesel
blend, it was observed that introduction of FAME does not influence
the number size distribution. The fraction PM0.1 represents then
about 42% of the total number of particles. On the contrary, using
FAEE blend leads to a shift of the number size distribution towards
larger particles with a contribution of 70% of the fraction
PM0.1-1.
The use of FAEE blend leads to an increase of carbonyl compounds
emission especially for acetaldehyde, acrolein, propanal and
acetone production. However, it appears that the 4-way catalyst is
not efficient towards carbonyl compounds conversion.
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Citation
Cosseron, A., Tschamber, V., Coniglio, L., and DAOU, T., "Study of Non-Regulated Exhaust Emissions Using Biodiesels and Impact on a 4 Way Catalyst Efficiency," SAE Technical Paper 2011-24-0194, 2011, https://doi.org/10.4271/2011-24-0194.Also In
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