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| Titel: |
Production of Polycyclic Aromatic Hydrocarbons in Chlorine Containing Environments* |
| Auteur: |
Frenklach, Michael |
| Verschenen in: |
Combustion science and technology |
| Paginering: | Jaargang 74 (1990) nr. 1-6 pagina's 283-296 |
| Jaar: |
1990-11-01 |
| Inhoud: |
The factors affecting the formation and growth of polycyclic aromatic hydrocarbons (PAHs) in chlorine-containing environments are investigated. The experimental results obtained in shock-tube pyrol-ysis of chlorinated C1, and C2, hydrocarbons are re-analyzed in terms of Cl-to-H molar ratio of the mixture and it is found that the sooting tendency and hence PAH production are increased with the increase in [C1]/[H] ratio. Based on the analysis of the reaction kinetics and results or detailed modeling, two basic factors are suggested to be responsible for this phenomenon: (1) the enhanced, chlorine-catalized molecular degradation that promotes the formation of aromatic-ring compounds; and (2) the large concentration of CI atoms that accelerates the abstraction of aromatic H from stable PAH molecules, which activates them for further growth. The modeling results also provide an evidence against existence of a correlation between PAHs and CO in flame environments. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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