Corrigendum to “Reduction of PAH and soot in premixed ethylene–air flames by addition of ethanol” [Combust. Flame 144 (2006) 675–687]

Litzinger, Thomas A.; Wu, Juntao; Santoro, Robert J.

doi:10.1016/j.combustflame.2006.06.006

Cited by 2 publications

(1 citation statement)

References 1 publication

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“…There appears to be an effect of fuel oxygen on the formation of PAHs during combustion. In previous mechanistic studies, ethanol is believed to interfere with the formation of aromatic compounds by short-circuiting the formation of conjugated double bonds [21], [22]. In addition, the paraffinic oil range compounds in the PM are higher for the alcohol fuels.…”

Section: Pm Hydrocarbon Speciation Resultsmentioning

confidence: 99%

Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends

Storey¹,

Lewis²,

Szybist³

et al. 2014

SAE Int. J. Fuels Lubr.

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Gasoline direct injection (GDI) engines can offer improved fuel economy and higher performance over their port fuelinjected (PFI) counterparts, and are now appearing in increasingly more U.S. and European vehicles. Small displacement, turbocharged GDI engines are replacing large displacement engines, particularly in light-duty trucks and sport utility vehicles, in order for manufacturers to meet more stringent fuel economy standards. GDI engines typically emit the most particulate matter (PM) during periods of rich operation such as start-up and acceleration, and emissions of air toxics are also more likely during this condition. A 2.0 L GDI engine was operated at lambda of 0.91 at typical loads for acceleration (2600 rpm, 8 bar BMEP) on three different fuels; an 87 anti-knock index (AKI) gasoline (E0), 30% ethanol blended with the 87 AKI fuel (E30), and 48% isobutanol blended with the 87 AKI fuel. E30 was chosen to maximize octane enhancement while minimizing ethanol-blend level and iBu48 was chosen to match the same fuel oxygen level as E30. Particle size and number, organic carbon and elemental carbon (OC/EC), soot HC speciation, and aldehydes and ketones were all analyzed during the experiment. A new method for soot HC speciation is introduced using a direct, thermal desorption/pyrolysis inlet for the gas chromatograph (GC). Results showed high levels of aromatic compounds were present in the PM, including downstream of the catalyst, and the aldehydes were dominated by the alcohol blending.

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Section: Pm Hydrocarbon Speciation Resultsmentioning

confidence: 99%

Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends

Storey¹,

Lewis²,

Szybist³

et al. 2014

SAE Int. J. Fuels Lubr.

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Investigation of the PAH and Carbon Nanoparticles Formation Processes in the Ethylene Pyrolysis with the Tetrahydrofuran Addition Behind the Shock Waves

Drakon,

Eremin,

Korshunova

et al. 2023

HoBMSTU.SNS

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Currently, substances are being actively sought that could serve as the alternative fuel or fuel additive reducing formation and emission of the carbon nanoparticles. Here, processes of the polyaromatic hydrocarbons (precursors of the carbon condensed phase formation) and carbon black nanoparticles formation during the ethylene pyrolysis with addition of the tetrahydrofuran were studied by laser-induced fluorescence and laser extinction methods. Spectral dependences of laser-induced fluorescence of the polyaromatic hydrocarbons were obtained by laser-induced fluorescence at various temperatures and pyrolysis stages, and optical density of the reacting gas mixtures at wavelengths of 405 and 633 nm was obtained by laser extinction. Measurements were carried out on a shock tube behind the reflected shock waves in the temperature range of 1,695--2,500 K and pressure range of 2.7--4.1 atm. It is shown that during the ethylene pyrolysis with the tetrahydrofuran addition soot formation process is intensifying, and the temperature range of the carbon nanoparticles formation is expanding. Using the kinetic simulation, it was found that acceleration in the carbon nanoparticles formation was caused by formation of methyl radical and propylene in the tetrahydrofuran pyrolysis

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Corrigendum to “Reduction of PAH and soot in premixed ethylene–air flames by addition of ethanol” [Combust. Flame 144 (2006) 675–687]

Cited by 2 publications

References 1 publication

Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends

Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends

Investigation of the PAH and Carbon Nanoparticles Formation Processes in the Ethylene Pyrolysis with the Tetrahydrofuran Addition Behind the Shock Waves

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