Abatement and degradation pathways of toluene in indoor air by positive corona discharge

Durme, Jim Van; Dewulf, Jo; Sysmans, W.; Leys, Christophe; Langenhove, Herman Van

doi:10.1016/j.chemosphere.2007.03.053

Cited by 226 publications

(106 citation statements)

References 46 publications

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“…At higher energy densities (> 330 J L -1 ) sparking occurs for the positive corona and a maximum RE of 80% is reached. The higher removal obtained with positive corona can be attributed to the fact that streamer discharges have a higher efficiency in the generation of chemical active species that are responsible for the oxidation of TCE [13]. At high energy densities (> 500 J L -1 ) the negative corona shifts to the glow regime which gradually fills the entire gap with active plasma volume.…”

Section: Methodsmentioning

confidence: 98%

Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Vandenbroucke

Vanderstricht

Dinh

et al. 2011

WIT Transactions on Ecology and the Environment

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The decomposition of trichloroethylene (TCE) in air by non-thermal plasma was investigated with a multi-pin-to-plate direct current (DC) discharge at atmospheric pressure and room temperature. The effects of various operating parameters on the removal efficiency (RE) were examined. The experiments indicated that for low energy densities higher removal could be obtained with positive corona. For negative corona and 10% relative humidity (RH) a maximum RE of 99.5% could be achieved at 1100 J L -1 . Formation of byproducts was qualitatively analyzed in detail with FT-IR spectroscopy and mass spectrometry. Detected by-products for negative corona operated at 300 J L -1 and 10% RH include dichloroacetylchloride, trichloroacetaldehyde, phosgene, ozone, HCl, Cl 2 , CO and CO 2 . The highest RE for TCE was achieved with a relative humidity of 19%.

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Section: Methodsmentioning

confidence: 98%

Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Vandenbroucke

Vanderstricht

Dinh

et al. 2011

WIT Transactions on Ecology and the Environment

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“…Sleiman et al [15] observed the same inhibition of toluene photocatalytic oxidation at high RH using TiO 2 supported in a paper matrix, with ~100% conversion for all experiments performed at RH < 20%. Van Durme et al [44] described a maximum degradation rate for 500 ppb of toluene vapor at 26% RH for its oxidation by non-thermal plasma (an emerging, complementary technology for gas phase photocatalytic air purification), but the processes under dry air and higher humidity conditions were less efficient. However, this effect cannot be generalized to other organic pollutants and/or to other experimental conditions.…”

Section: Effect Of the Relative Humidity On Toluene Removalmentioning

confidence: 99%

Effect of key parameters on the photocatalytic oxidation of toluene at low concentrations in air under 254+185nm UV irradiation

Quici

Vera

Choi

et al. 2010

Applied Catalysis B: Environmental

111

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“…However, the previous researches have reported lower reaction rate constant (k) of hydrogen abstraction reactions than OH addition ones (Nichipor et al, 2012). The similar studies have showed that many other intermediates such as cresol, 4-methyl-2-propyl furan and formic acid may be produced, also some nitro aromatics like 4-nitrophenol may be produced by reaction of the intermediates and nitrogen (Van Durme et al, 2007). The intermediates for reaction of C OH with benzene are reported mainly as phenol, carbonyls and formic acid (Berndt et al, 1999).…”

Section: Results and Discussion Elimination Of The Btxsmentioning

confidence: 96%

BTXs Removal with Transition Metals Coated Beds, Considering the Plausible Reaction Mechanisms

Rostami¹,

Jafari²

2015

J. of Environmental Science and Technology

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In this study, a natural zeolite (i.e., Clinoptilolite) was used as bed of a lab scale packed tower. The bed was coated with two transition metals nano-scale particles (i.e., Fe 0 and Cu 2 O). Each coated metal to bed ratio was 4.6 wt.% and the experiments were conducted in air flow of 1 L minG 1 and temperature of 200°C. The results showed up to 83.83% of BTX (benzene, toluene and xylene) removal for Fe 0 and respectively 32.0 and 56.98% for Cu 2 O and combined Fe 0 -Cu 2 O coated beds. However, the pollutants mineralization/elimination ratio on the combined metals coated bed, with up to 0.83, was greater than the remains which were 0.58 and 0.37 in order for Fe 0 and Cu 2 O coated beds.

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Abatement and degradation pathways of toluene in indoor air by positive corona discharge

Cited by 226 publications

References 46 publications

Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Effect of key parameters on the photocatalytic oxidation of toluene at low concentrations in air under 254+185nm UV irradiation

BTXs Removal with Transition Metals Coated Beds, Considering the Plausible Reaction Mechanisms

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