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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JT - Propulsion, engines and fuels

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

SAE Technical Paper Series

ISSN

0148-7191

e-ISSN

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Volume of the periodical

2015

Issue of the periodical within the volume

April

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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