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Title: Formation of polycyclic aromatic hydrocarbons (PAH) in methane combustion: Comparative new results from premixed flames

Abstract

Direct sampling and GC/MS analysis of fuel-rich, laminar, premixed flames of methane indicates the production of higher in-flame peak concentrations of benzene and polycyclic aromatic hydrocarbons (PAH) than in the flames of ethane under similar combustion conditions. These findings are surprising and significant because the methane flame not only had a higher H/C ratio and lower carbon density, but also produced less acetylene and soot than the ethane flame. These results suggest the significance of species containing an odd number of carbon atoms in PAH formation processes in the methane flame, as well as the importance of soot surface reactions. Although aromatic and polyaromatic intermediates constitute trace by-products of combustion, their formation is of practical concern due to their potential adverse health effects.

Authors:
;  [1]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Chemical Engineering
Publication Date:
OSTI Identifier:
413480
Resource Type:
Journal Article
Journal Name:
Combustion and Flame
Additional Journal Information:
Journal Volume: 107; Journal Issue: 1-2; Other Information: PBD: Oct 1996
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; METHANE; COMBUSTION KINETICS; POLYCYCLIC AROMATIC HYDROCARBONS; CHEMICAL REACTION YIELD; BENZENE; GAS CHROMATOGRAPHY; MASS SPECTROSCOPY; COMPARATIVE EVALUATIONS; TOXICITY

Citation Formats

Senkan, S, and Castaldi, M. Formation of polycyclic aromatic hydrocarbons (PAH) in methane combustion: Comparative new results from premixed flames. United States: N. p., 1996. Web. doi:10.1016/0010-2180(96)00044-2.
Senkan, S, & Castaldi, M. Formation of polycyclic aromatic hydrocarbons (PAH) in methane combustion: Comparative new results from premixed flames. United States. https://doi.org/10.1016/0010-2180(96)00044-2
Senkan, S, and Castaldi, M. 1996. "Formation of polycyclic aromatic hydrocarbons (PAH) in methane combustion: Comparative new results from premixed flames". United States. https://doi.org/10.1016/0010-2180(96)00044-2.
@article{osti_413480,
title = {Formation of polycyclic aromatic hydrocarbons (PAH) in methane combustion: Comparative new results from premixed flames},
author = {Senkan, S and Castaldi, M},
abstractNote = {Direct sampling and GC/MS analysis of fuel-rich, laminar, premixed flames of methane indicates the production of higher in-flame peak concentrations of benzene and polycyclic aromatic hydrocarbons (PAH) than in the flames of ethane under similar combustion conditions. These findings are surprising and significant because the methane flame not only had a higher H/C ratio and lower carbon density, but also produced less acetylene and soot than the ethane flame. These results suggest the significance of species containing an odd number of carbon atoms in PAH formation processes in the methane flame, as well as the importance of soot surface reactions. Although aromatic and polyaromatic intermediates constitute trace by-products of combustion, their formation is of practical concern due to their potential adverse health effects.},
doi = {10.1016/0010-2180(96)00044-2},
url = {https://www.osti.gov/biblio/413480}, journal = {Combustion and Flame},
number = 1-2,
volume = 107,
place = {United States},
year = {1996},
month = {10}
}