Modeling of a continuous photocatalytic reactor for isovaleraldehyde oxidation: Effect of different operating parameters and chemical degradation pathway

Assadi, Aymen Amine; Palau, Jordi; Bouzaza, Abdelkrim; Wolbert, Dominique

doi:10.1016/j.cherd.2013.02.020

Cited by 51 publications

(41 citation statements)

References 35 publications

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“…The reactor (with a planar geometry, 1000 x 135 x 135 mm) consisted of a rectangular polymethyl metracrylate (PMMA) chamber containing two parallel PMMA sheets (4 mm thick) where the distance between sheets could be adjusted to modify the TiO 2 at its surface [23] with a total length of 0.8 m, which was located on the internal face of the two PMMA sheets, yielding a photocatalytic surface of 0.19 m 2 [22,24].…”

Section: Photoreactor Unitmentioning

confidence: 99%

See 1 more Smart Citation

Isovaleraldehyde degradation using UV photocatalytic and dielectric barrier discharge reactors, and their combinations

Palau¹,

Assadi

Penya-Roja³

et al. 2015

Journal of Photochemistry and Photobiology A: Chemistry

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Section: Photoreactor Unitmentioning

confidence: 99%

“…In a previous work [22], operational parameters such as geometry, UV radiation, humidity, and air gap were explored in the photocatalytic degradation of isovaleraldehyde, and the optimal operational conditions were used in this present work.…”

Section: Introductionmentioning

confidence: 99%

Isovaleraldehyde degradation using UV photocatalytic and dielectric barrier discharge reactors, and their combinations

Palau¹,

Assadi

Penya-Roja³

et al. 2015

Journal of Photochemistry and Photobiology A: Chemistry

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“…Moreover, several studies have been conducted to show the application of catalytic oxidation for NH 3 removal and for SO 2 oxidation . Other studies measured the ability of TiO 2 to treat air pollution . In fact, TiO 2 can be excited by low energy UV‐A photons, leading to formation of electron‐hole pairs .…”

Section: Introductionmentioning

confidence: 99%

Acceleration of Trimethylamine Removal Process Under Synergistic Effect of Photocatalytic Oxidation and Surface Discharge Plasma Reactor

et al. 2015

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Removal of trimethylamine (TMA) from the air is experimentally investigated by combining photocatalysis with a DBD plasma reactor, at ambient temperature and atmospheric pressure. Many parameters are investigated in this work, such as flowrate, inlet concentration, relative humidity of effluent, and specific energy of discharge. By combining non‐thermal plasma and photocatalysis, a synergy effect on the removal efficiency of TMA has been observed under different experimental conditions. Moreover, we note that adding a photocatalyst in the zone of plasma inhibits ozone formation. The formation of by‐products due to TMA removal is also studied. The identified and analyzed by‐products are classified into four groups: intermediary products, carbon monoxide, carbon dioxide, and ozone and nitrogen oxides.

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“…Photocatalytic systems are the most effective and economical way which do not have the above mentioned limitations and can be used in a wide range of concentrations and gas flow rates (Özçelik et al, 2009). In this technique, a semi-conductor photocatalyst is activated by photons generated by a UV radiation lamp (sunlight or UV lamps) (Assadi et al, 2013;Bouzaza et al, 2006). It is proved that this technique has the ability to abate a large number of VOCs with a low energy consumption (Assadi et al, 2014;Pichat et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic abatement of o-xylene using adsorption enhanced ZnO/GAC catalyst in a continuous flow reactor: Catalytic potential, Fate of o-xylene and its by-products

2017

Global NEST Journal

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Photocatalytic abatement of o-xylene was investigated by immobilized ZnO on granular activated carbon (ZnO/GAC) under UV irradiation. Immobilization of ZnO increased the breakthrough time and removal capacity by 51 and 57%, respectively, in optimal conditions. The catalytic potential of the ZnO/GAC (86.5%) for o-xylene removal was far greater than simple GAC (13.5%), at the optimum condition. The maximum removal capacity with ZnO/GAC (3.12g o-xylene /gZnO/GAC) was observed at 100 °C, while the maximum removal capacity of simple GAC (1.37 g oxylene/g GAC) was observed a t 20 °C. The main intermediates of the o-xylene oxidation in photocatalytic process with GAC were methanoic acid, o-nitro-p-cresol, phenylmethanal, and methyl di-phenyl-methane. ZnO/GAC can highly catalyze the degradation of o-xylene in the presence of UV, with methanoic acid being the major intermediate desorbed from the bed. The results demonstrated that the ZnO/GAC is an efficient option for the removal of VOCs and biohazards emitted from industrial streams.

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Modeling of a continuous photocatalytic reactor for isovaleraldehyde oxidation: Effect of different operating parameters and chemical degradation pathway

Cited by 51 publications

References 35 publications

Isovaleraldehyde degradation using UV photocatalytic and dielectric barrier discharge reactors, and their combinations

Isovaleraldehyde degradation using UV photocatalytic and dielectric barrier discharge reactors, and their combinations

Acceleration of Trimethylamine Removal Process Under Synergistic Effect of Photocatalytic Oxidation and Surface Discharge Plasma Reactor

Photocatalytic abatement of o-xylene using adsorption enhanced ZnO/GAC catalyst in a continuous flow reactor: Catalytic potential, Fate of o-xylene and its by-products

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