Low temperature ignition behavior of methyl decanoate

James Szybist; Andre L. Boehman

Low temperature ignition behavior of methyl decanoate

James Szybist
, Andre L. Boehman

Buildings and Transportation Science Div

Research output: Contribution to journal › Conference article › peer-review

Abstract

The low temperature ignition behavior of methyl decanoate, a biodiesel relevant compound, was studied in a motored engine experiment. Premixed charges of fuel and air were delivered to the engine, and the extent of autoignition was controlled by varying the compression ratio. Methyl deaconate exhibited two-stage ignition, with low temperature heat release (LTHR), or cool flame, followed by the main combustion event. The ester group underwent decarboxylation, or formation of CO₂ through unimolecular decomposition, not oxidation. When decarboxylation occurred in oxygenated diesel fuels, it reduced their effectiveness at reducing PM emissions because the oxygen is not fully utilized. The initial LTHR reactions involved only the aliphatic chain and were similar to those of n-heptane. Decarboxylation did not occur until the aliphatic chain has been largely consumed by LTHR reactions. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original language	English
Journal	ACS National Meeting Book of Abstracts
Volume	231
State	Published - 2006
Event	231th ACS National Meeting - Atlanta, GA, United States Duration: Mar 26 2006 → Mar 30 2006

Cite this

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title = "Low temperature ignition behavior of methyl decanoate",

abstract = "The low temperature ignition behavior of methyl decanoate, a biodiesel relevant compound, was studied in a motored engine experiment. Premixed charges of fuel and air were delivered to the engine, and the extent of autoignition was controlled by varying the compression ratio. Methyl deaconate exhibited two-stage ignition, with low temperature heat release (LTHR), or cool flame, followed by the main combustion event. The ester group underwent decarboxylation, or formation of CO2 through unimolecular decomposition, not oxidation. When decarboxylation occurred in oxygenated diesel fuels, it reduced their effectiveness at reducing PM emissions because the oxygen is not fully utilized. The initial LTHR reactions involved only the aliphatic chain and were similar to those of n-heptane. Decarboxylation did not occur until the aliphatic chain has been largely consumed by LTHR reactions. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).",

author = "James Szybist and Boehman, \{Andre L.\}",

year = "2006",

language = "English",

volume = "231",

journal = "ACS National Meeting Book of Abstracts",

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note = "231th ACS National Meeting ; Conference date: 26-03-2006 Through 30-03-2006",

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TY - JOUR

T1 - Low temperature ignition behavior of methyl decanoate

AU - Szybist, James

AU - Boehman, Andre L.

PY - 2006

Y1 - 2006

N2 - The low temperature ignition behavior of methyl decanoate, a biodiesel relevant compound, was studied in a motored engine experiment. Premixed charges of fuel and air were delivered to the engine, and the extent of autoignition was controlled by varying the compression ratio. Methyl deaconate exhibited two-stage ignition, with low temperature heat release (LTHR), or cool flame, followed by the main combustion event. The ester group underwent decarboxylation, or formation of CO2 through unimolecular decomposition, not oxidation. When decarboxylation occurred in oxygenated diesel fuels, it reduced their effectiveness at reducing PM emissions because the oxygen is not fully utilized. The initial LTHR reactions involved only the aliphatic chain and were similar to those of n-heptane. Decarboxylation did not occur until the aliphatic chain has been largely consumed by LTHR reactions. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

AB - The low temperature ignition behavior of methyl decanoate, a biodiesel relevant compound, was studied in a motored engine experiment. Premixed charges of fuel and air were delivered to the engine, and the extent of autoignition was controlled by varying the compression ratio. Methyl deaconate exhibited two-stage ignition, with low temperature heat release (LTHR), or cool flame, followed by the main combustion event. The ester group underwent decarboxylation, or formation of CO2 through unimolecular decomposition, not oxidation. When decarboxylation occurred in oxygenated diesel fuels, it reduced their effectiveness at reducing PM emissions because the oxygen is not fully utilized. The initial LTHR reactions involved only the aliphatic chain and were similar to those of n-heptane. Decarboxylation did not occur until the aliphatic chain has been largely consumed by LTHR reactions. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

UR - https://www.scopus.com/pages/publications/33745245605

M3 - Conference article

AN - SCOPUS:33745245605

SN - 0065-7727

VL - 231

JO - ACS National Meeting Book of Abstracts

JF - ACS National Meeting Book of Abstracts

T2 - 231th ACS National Meeting

Y2 - 26 March 2006 through 30 March 2006

ER -

Low temperature ignition behavior of methyl decanoate

Abstract

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