Impact of Ester Structures on the Soot Characteristics and Soot Oxidative Reactivity of Biodiesel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00240542" target="_blank" >RIV/68407700:21220/15:00240542 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4271/2015-01-1080" target="_blank" >http://dx.doi.org/10.4271/2015-01-1080</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4271/2015-01-1080" target="_blank" >10.4271/2015-01-1080</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of Ester Structures on the Soot Characteristics and Soot Oxidative Reactivity of Biodiesel

Popis výsledku v původním jazyce

A study and analysis of the relation of biodiesel chemical structures to the resulting soot characteristics and soot oxidative reactivity is presented. Soot samples generated from combustion of various methyl esters, alkanes, biodiesel and diesel fuels in laminar co-flow diffusion flames are analyzed to evaluate the impact of fuel-bound oxygen in fatty acid esters on soot oxidation behavior. Thermogravimetric analysis (TGA) of soot samples collected from diffusion flames show that chemical variations in biodiesel ester compounds have an impact on soot oxidative reactivity and soot characteristics in contrast to findings reported previously in the literature. Soot derived from methyl esters with shorter alkyl chains, such as methyl butyrate and methyl hexanoate, exhibit higher reactivity than those with longer carbon chain lengths, such as methyl oleate, which are more representative of biodiesel fuels. Structural analysis is performed via Raman spectroscopy on methyl esters derived soot samples and compared with n-dodecane derived soot. These data, are consistent with literature reports that lower structural order enhances reactivity. Soot reactivity analysis of methyl esters with different types of bonds (single versus double), but with the same carbon number, suggests that carbon-carbon bond types and locations also affect soot reactivity. In addition, reactivity of soot from a high-cetane, low-aromatic diesel fuel, is assessed and it is found to exhibit lower reactivity than soot from a conventional diesel fuel.

Název v anglickém jazyce

Impact of Ester Structures on the Soot Characteristics and Soot Oxidative Reactivity of Biodiesel

Popis výsledku anglicky

A study and analysis of the relation of biodiesel chemical structures to the resulting soot characteristics and soot oxidative reactivity is presented. Soot samples generated from combustion of various methyl esters, alkanes, biodiesel and diesel fuels in laminar co-flow diffusion flames are analyzed to evaluate the impact of fuel-bound oxygen in fatty acid esters on soot oxidation behavior. Thermogravimetric analysis (TGA) of soot samples collected from diffusion flames show that chemical variations in biodiesel ester compounds have an impact on soot oxidative reactivity and soot characteristics in contrast to findings reported previously in the literature. Soot derived from methyl esters with shorter alkyl chains, such as methyl butyrate and methyl hexanoate, exhibit higher reactivity than those with longer carbon chain lengths, such as methyl oleate, which are more representative of biodiesel fuels. Structural analysis is performed via Raman spectroscopy on methyl esters derived soot samples and compared with n-dodecane derived soot. These data, are consistent with literature reports that lower structural order enhances reactivity. Soot reactivity analysis of methyl esters with different types of bonds (single versus double), but with the same carbon number, suggests that carbon-carbon bond types and locations also affect soot reactivity. In addition, reactivity of soot from a high-cetane, low-aromatic diesel fuel, is assessed and it is found to exhibit lower reactivity than soot from a conventional diesel fuel.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JT - Pohon, motory a paliva

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SAE Technical Paper Series

ISSN

0148-7191

e-ISSN

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Svazek periodika

2015

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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