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Emission characteristics of PAHs, benzene and phenol group hydrocarbons in O2/RFG waste incineration processes by Jyh-Cherng Chen; Jian-Sheng Huang; Chih-Ming Chen; Jian-Shuo Guo is a Engineering article available to read on EtoBox.

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This study applies the oxygen/recycled flue gas (O 2 /RFG) combustion technology for waste incineration in a laboratory-scale fluidized bed incinerator to investigate the effects of different RFG percentages and O 2 concentrations on the emission characteristics of organic pollutants (PAHs, phenol and benzene hydrocarbons). Experimental results show that most PAHs with high-ring structures were present in solid-phase and most low-ring PAHs were present in gas-phase. The major compounds of benzene and phenol hydrocarbons were benzene, toluene, trichlorobenzene and 2,4-dinitrophenol, phenol, dichlorophenol, respectively. As the O 2 concentration in feed gas was increased from 21% to 40%, the emissions of solid-and gas-phase PAHs and phenol compounds were decreased but not for benzene compounds. Increasing RFG percentages would decrease the emissions of gas-phase PAHs, benzene and phenol compounds, but increased those of solid-phase pollutants. The best operating conditions of such O 2 /RFG combustion system to reduce the emissions of PAHs and phenol compounds were 40% O 2 , 35% RFG, and that for benzene compounds was 21% O 2 , 75% RFG. Comparing with conventional air combustion syste

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Author

Jyh-Cherng Chen; Jian-Sheng Huang; Chih-Ming Chen; Jian-Shuo Guo

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0016-2361)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)