Emissions of polycyclic aromatic hydrocarbons (PAHs) from the pyrolysis of scrap tires

Chen, Shui Jen; Su, Hung Bin; Chang, Juu En; Lee, Wen Jhy; Huang, Kuo‐Lin; Hsieh, Lien Te; Huang, Yu‐Chun; Lin, Wei-Cheng; Lin, Chih Chung

doi:10.1016/j.atmosenv.2006.09.041

Cited by 86 publications

(46 citation statements)

References 20 publications

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“…The 2-and 3-ring congeners were belong to LMW PAHs, 4-ring congeners belong to MMW PAHs, and 5-, 6-and 7-ring congeners belong to HMW PAHs (Chen et al, 2007;Kong et al, 2011). Contents of LMW-, MMW-and HMW-PAHs were 19.8 ± 11.6, 3.94 ± 0.920, 3.24 ± 1.23 ng g -1 for 16 CFPPs with IBPC-600, 645 ± 341, 148 ± 179, 109 ± 141 ng g -1 for 2 CFPPs with IBPC-200/300.…”

Section: Composition Of Pah Homologs With Different Number Of Ringsmentioning

confidence: 99%

“…The values of BaP-based toxic equivalency concentration (BaPeq), total carcinogenic PAHs (C-PAHs), BaP-based equivalent carcinogenic power (BaPE) and 2,3,7,8-tetrachlorodibenzodioxin (TCDD)-based toxic equivalency concentration (TEQ), are often calculated and used to evaluate the potential health risk of PAHs to human beings in previous studies (Chen et al, 2004(Chen et al, , 2007Kong et al, 2011Kong et al, , 2013Cheruiyot et al, 2015). The calculated results of potential toxicity risk of PAHs in this study were shown in Table 2 As an indicator PAH, BaP was the most carcinogenic congener .…”

Section: Potential Toxicity Risk Assessment For Pahsmentioning

confidence: 99%

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Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

Chen

Liu

et al. 2016

Aerosol Air Qual. Res.

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For the management of coal fly ashes (CFAs) from coal-fired power plants (CFPPs), characterization of PAHs and PCBs in CFAs is imperative. The 18 PAH and 86 PCB congeners in CFAs collected from 18 large-scale CFPPs in China were detected using GC/MS system. The PAH concentrations were in the range of 5.51-70.9 ng g -1 for 16 CFPPs with individual block power capacity as 600 MW (IBPC-600), significantly lower than 886-916 ng g -1 for 2 CFPPs with IBPC as 200 and 300 MW (IBPC-200/300). Both PAH and PCB congeners for 18 CFPPs were dominated by low molecular weight ones. The 3-and 2-ring PAHs, di-, tri-and tetra-PCBs were the predominant homologs. PAH profiles for 16 CFPPs with IBPC-600 were significantly different from other industrial stacks based on higher coefficients of divergence. The BaP-based toxic equivalency (BaPeq) concentration and BaP-based equivalent carcinogenic power (BaPE) for 16 CFPPs with IBPC-600 were 0.834 ng g -1 and 0.570, much lower than corresponding 20.5 ng g -1 and 15.4 for 2 CFPPs with IBPC-200/300. No difference existed for Σ 86 PCBs between CPFFs with IBPC-600 and -200/300, which ranged from 9.60 to 32.1 ng g -1 . Higher mean carcinogenic PAH concentrations for 2 CFPPs with IBPC-200/300 and PCBs-TEQ concentration for 18 CFPPs indicated the application of CFAs as soil amendment should be prohibited. The PAH concentrations for 18 CFPPs were well correlated with the total organic carbon (TOC) values, while PCB concentrations showed not this trend, indicated the different formation mechanism between PCBs and PAHs.

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Section: Composition Of Pah Homologs With Different Number Of Ringsmentioning

confidence: 99%

Section: Potential Toxicity Risk Assessment For Pahsmentioning

confidence: 99%

Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

Chen

Liu

et al. 2016

Aerosol Air Qual. Res.

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“…thiophene, methyl thiophenes, benzothiophenes and their methyl/dimethyl/trimethyl derivatives and benzo[b]naphtho-2,3-d thiophene and methyl derivatives (Chen et al, 2007;Fullana et al, 2000). Scrap tyre combustion has emission factors of: OCS 80 mg S kg −1 , and MeSH 53 mg S kg −1 (Hu et al, 2014), with thiophene 23 mg S kg −1 , BT 5.5-10 mg S kg −1 , methylthiophene 2 mg S kg −1 , and benzisothiazole 40 mg S kg −1 (Reisman, 1997).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Anthropogenic contributions to global carbonyl sulfide, carbon disulfide and organosulfides fluxes

Lee

Brimblecombe

2016

Earth-Science Reviews

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Previous studies of the global sulfur cycle have focused almost exclusively on oxidized species and just a few sulfides. This focus is expanded here to include a wider range of reduced sulfur compounds. Inorganic sulfides tend to be bound into sediments, and sulfates are present both in sediments and the oceans. Sulfur can adopt polymeric forms that include S-S bonds. This review examines the global anthropogenic sources of reduced sulfur, updating emission inventories and widening the consideration of industrial sources. It estimates the anthropogenic fluxes of key sulfides to the atmosphere (units Gg S

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“…Mainly formed in burning or pyrolytic processes, PAHs may be emitted from different stationary and mobile sources (Tsai et al, 2001;Chen et al, 2007;Tsai et al, 2012;Kim et al, 2013;Chen et al, 2014;Li et al, 2014;Kavouras et al, 2015;Mwangi et al, 2015;Stogiannidis and Laane, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of Operating Conditions on PAHs Emission from a Single H2-O2 PEM Fuel Cell

Huang

Ming-sheng

Tsai

et al. 2016

Aerosol Air Qual. Res.

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This study investigates the emissions of polycyclic aromatic hydrocarbons (PAHs) from a single hydrogen-oxygen proton exchange membrane (PEM) fuel cell (FC) under different flowrates, temperatures, sampling periods, and membrane-electrode assemblies (MEAs). The results show that Nap, PA, BeP, FL, Pyr, BbC, Ant, and Flu were dominant in anode and cathode emissions of the single PEMFC under different operating conditions. The emission concentrations of Total-PAHs and Total-BaP equivalent carcinogenic potency (BaP eq ) were lower from the anode than from the cathode emission. Moreover, the concentrations of molecular-weight (MW) classified PAHs were in the order low (L) MM-> high (H) MW-> middle (M) MW-PAHs. When the anode/cathode gas flowrates were greater or smaller than 52/35 sccm but at the same sampling volume, the emission concentrations of Total-PAHs and Total-BaP eq increased. The concentration of Total-PAHs decreased but the mass of Total-PAHs increased with the increase of sampling time. However, 64% and 82% of PAH mass were emitted within 12 and 24 h, respectively, based on 36 h sampling at anode/cathode gas flowrates = 52/35 sccm. The concentrations of Total-PAHs or Total-BaP eq of anode or cathode emission were slightly higher at 90°C than at 65°C.The performances of commercial MEAs were in the order SGL < E-TEK < GORE. Nevertheless, the concentrations of anode or cathode emission Total-PAHs or Total-BaP eq for the PEMFC using different MEAs followed the order GORE > E-TEK2 > E-TEK > SGL, while the sums of anode and cathode Total-PAHs emission factors varied with the order SGL > E-TEK > E-TEK2 > GORE (13.3 ± 0.55, 11.5 ± 0.21, 7.91 ± 0.47, and 3.17 ± 0.22 µg g -1 -MEA, respectively). When using the (lab-made) E-TEK2 as the MEA of PEMFC, the PAH profiles of anode and cathode emission gases were similar to those of some carbon materials.

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Emissions of polycyclic aromatic hydrocarbons (PAHs) from the pyrolysis of scrap tires

Cited by 86 publications

References 20 publications

Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

Anthropogenic contributions to global carbonyl sulfide, carbon disulfide and organosulfides fluxes

Effect of Operating Conditions on PAHs Emission from a Single H2-O2 PEM Fuel Cell

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