PAH and fullerene formation from low pressure combustion of toluene and oxygen premixed flame

Masahiko Shibahara; Hiroshi Takada; Tsubasa Shimizu; Nilson Kunioshi; Masashi Katsuki; Hiroaki Takehara

doi:10.1299/kikaib.73.1456

PAH and fullerene formation from low pressure combustion of toluene and oxygen premixed flame

Masahiko Shibahara, Hiroshi Takada, Tsubasa Shimizu, Nilson Kunioshi, Masashi Katsuki, Hiroaki Takehara

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In the present study, a sooting flame was formed in a reduced-pressure combustion chamber with a premixed flame of methane and oxygen for the surrounding flame and premixed flame of toluene and oxygen for the center flame. Collected soot samples were analyzed using the high performance liquid chromatography and a gas chromatography to determine the fullerene and the total PAH contents and 22 species of PAHs under various conditions. Effects of the chamber pressure, the equivalence ratio of totluene and oxygen, the flow velocity and the chamber length to yield of soot and contents of PAHs and fullerenes were discuseed. When the chamber pressure increases, the contents of PAH and fullerene decreased with keeping a constant soot yield. There were optimal equivalence ratio and flow rate of the center flame for fullerene formation whereas flow rate of the outer flame and chamber length were not essential for fullerene formation. Such chemical species as acenaphthene, fiuorene, phenanthrene, fluoranthene and phyrene accounted for large content in total PAHs.

Original language	English
Pages (from-to)	1456-1463
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	73
Issue number	7
DOIs	https://doi.org/10.1299/kikaib.73.1456
Publication status	Published - 2007 Jul
Externally published	Yes

Keywords

Combustion products
Combustion synthesis
Fullerene
PAH
Premixed flame

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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PAH and fullerene formation from low pressure combustion of toluene and oxygen premixed flame. / Shibahara, Masahiko; Takada, Hiroshi; Shimizu, Tsubasa; Kunioshi, Nilson; Katsuki, Masashi; Takehara, Hiroaki.

In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 73, No. 7, 07.2007, p. 1456-1463.

Research output: Contribution to journal › Article › peer-review

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AU - Takada, Hiroshi

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AU - Kunioshi, Nilson

AU - Katsuki, Masashi

AU - Takehara, Hiroaki

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N2 - In the present study, a sooting flame was formed in a reduced-pressure combustion chamber with a premixed flame of methane and oxygen for the surrounding flame and premixed flame of toluene and oxygen for the center flame. Collected soot samples were analyzed using the high performance liquid chromatography and a gas chromatography to determine the fullerene and the total PAH contents and 22 species of PAHs under various conditions. Effects of the chamber pressure, the equivalence ratio of totluene and oxygen, the flow velocity and the chamber length to yield of soot and contents of PAHs and fullerenes were discuseed. When the chamber pressure increases, the contents of PAH and fullerene decreased with keeping a constant soot yield. There were optimal equivalence ratio and flow rate of the center flame for fullerene formation whereas flow rate of the outer flame and chamber length were not essential for fullerene formation. Such chemical species as acenaphthene, fiuorene, phenanthrene, fluoranthene and phyrene accounted for large content in total PAHs.

AB - In the present study, a sooting flame was formed in a reduced-pressure combustion chamber with a premixed flame of methane and oxygen for the surrounding flame and premixed flame of toluene and oxygen for the center flame. Collected soot samples were analyzed using the high performance liquid chromatography and a gas chromatography to determine the fullerene and the total PAH contents and 22 species of PAHs under various conditions. Effects of the chamber pressure, the equivalence ratio of totluene and oxygen, the flow velocity and the chamber length to yield of soot and contents of PAHs and fullerenes were discuseed. When the chamber pressure increases, the contents of PAH and fullerene decreased with keeping a constant soot yield. There were optimal equivalence ratio and flow rate of the center flame for fullerene formation whereas flow rate of the outer flame and chamber length were not essential for fullerene formation. Such chemical species as acenaphthene, fiuorene, phenanthrene, fluoranthene and phyrene accounted for large content in total PAHs.

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PAH and fullerene formation from low pressure combustion of toluene and oxygen premixed flame

Abstract

Keywords

ASJC Scopus subject areas

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