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POLYCYCLIC AROMATIC HYDROCARBON FORMATION IN OPPOSED FLOW DIFFUSION FLAMES OF ETHANE. (R825412)
Vincitore, A. M. AND S. M. Senkan. POLYCYCLIC AROMATIC HYDROCARBON FORMATION IN OPPOSED FLOW DIFFUSION FLAMES OF ETHANE. (R825412). GROUNDWATER MONITORING AND REMEDIATION. Elsevier Science Ltd, New York, NY, 114(1-2):259-266, (1998).
The effect of fuel-side carbon density on the levels of polycyclic aromatic hydrocarbon (PAH) formation in atmospheric pressure, opposed flow, ethane diffusion flames has been studied using heated micro-probe sampling and gas chromatography/mass spectrometry (GC/MS). Mole fraction profiles of about 30 major and minor species, as well as trace aromatic and substituted aromatic hydrocarbons and PAHs (up to C14H10, e.g., cyclopenta[cd]pyrene), were quantified by direct gas analysis of samples withdrawn from within the flame without any pre-concentration. Results indicate that fuel-side carbon density and changes in flame temperature markedly influence the levels of benzene and PAH formed within opposed flow diffusion flames. Significant O2 penetration was also noted on the fuel-rich side of the flame at a lower fuel dilutions, suggesting PAH formation may be also associated with O2-catalyzed reactions.
Record Details:Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL CENTER FOR ENVIRONMENTAL RESEARCH