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research-article

EMISSION OF CARBONYL AND POLYAROMATIC HYDROCARBON POLLUTANTS FROM THE COMBUSTION OF LIQUID FUELS: IMPACT OF BIOFUEL BLENDING.

[+] Author and Article Information
Philippe Dagaut

CNRS-INSIS, ICARE, 1c Avenue de la Recherche Scientifique, 45071 Orléans, France
dagaut@cnrs-orleans.fr

Yuri Bedjanian

CNRS-INSIS, ICARE, 1c Avenue de la Recherche Scientifique, 45071 Orléans, France
yuri.bedjanian@cnrs-orleans.fr

Guillaume Dayma

CNRS-INSIS, ICARE, 1c Avenue de la Recherche Scientifique, 45071 Orléans, France
guillaume.dayma@cnrs-orleans.fr

Fabrice Foucher

PRISME Université d’Orléans, 8 Rue Léonard de Vinci, 45072 Orléans, France
fabrice.foucher@univ-orleans.fr

Benoit Grosselin

CNRS-INSIS, ICARE, 1c Avenue de la Recherche Scientifique, 45071 Orléans, France
benoit.grosselin@cnrs-orleans.fr

Emmanouil Romanias

CNRS-INSIS, ICARE, 1c Avenue de la Recherche Scientifique, 45071 Orléans, France
emmanouil.romanias@imt-lille-douai.fr

Roya Shahla

CNRS-INSIS, ICARE, 1c Avenue de la Recherche Scientifique, 45071 Orléans, France
roya.shahla@hotmail.com

1Corresponding author.

ASME doi:10.1115/1.4040712 History: Received June 22, 2018; Revised June 27, 2018

Abstract

The combustion of conventional fuels (Diesel and Jet A-1) with 10-20% vol. oxygenated biofuels (ethanol, 1-butanol, methyl octanoate, rapeseed oil methyl ester, diethyl carbonate, tri(propylene glycol)methyl ether, i.e., CH3(OC3H6)3OH, and 2,5-dimethylfuran) and a synthetic paraffinic kerosene was studied. The experiments were performed using an atmospheric pressure laboratory premixed flame and a four-cylinder four-stroke Diesel engine operating at 1500 rpm. Soot samples from kerosene blends were collected above a premixed flame for analysis. Polyaromatic hydrocarbons (PAHs) were extracted from the soot samples. After fractioning, they were analyzed by high-pressure liquid chromatography (HPLC) with UV and fluorescence detectors. C1 to C8 carbonyl compounds were collected at the Diesel engine exhaust on 2,4-dinitrophenylhydrazine coated cartridges (DNPH) and analyzed by HPLC with UV detection. The data indicated that blending conventional fuels with biofuels has a significant impact on the emission of both carbonyl compounds and PAHs adsorbed on soot. The global concentration of 18 PAHs (1-methyl-naphthalene, 2-methyl-naphthalene, and the 16 US priority EPA PAHs) on soot was considerably lowered using oxygenated fuels, except 2,5-dimethylfuran. Conversely, the total carbonyl emission increased by oxygenated biofuels blending. Among them, ethanol and 1-butanol were found to increase considerably the emissions of carbonyl compounds.

Copyright (c) 2018 by ASME
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