Gas phase equilibria for dibenzo-p-dioxin, dibenzo-p-furan and biphenyl in the C-H-O system

Nagahiro Saito, Takahiro Ishizaki, Akio Fuwa

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The gas phase equilibrium calculation for the C-H-O system at atmospheric pressure and temperature from 773 to 1773 K at intervals of 250 K was performed to understand the generation and decomposition behavior of dibenzo-p-dioxin (DD), dibenzo-p-furan (DF) and biphenyl (BP) in relation to the existing oxygen potential. It is possible to categorize these results into three regions from the viewpoint of this potential: region (A), region (B) and region (C) are that of the higher, modest and lower oxygen potential, respectively. In region (A), the equilibrium amounts of DD, DF and BP are nearly zero. In region (B), they increase once and then decrease with rise in temperature. In the most characteristic region (C), they increase uniformly with rise in temperature.

    Original languageEnglish
    Pages (from-to)165-177
    Number of pages13
    JournalToxicological and Environmental Chemistry
    Volume74
    Issue number3-4
    Publication statusPublished - 2000

    Keywords

    • C-H-O system
    • Dioxins
    • Oxygen potential
    • Thermodynamic equilibrium

    ASJC Scopus subject areas

    • Environmental Science(all)
    • Environmental Chemistry
    • Health, Toxicology and Mutagenesis
    • Toxicology

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