Liquid phase catalytic oxidation of phenol

Kochetkova, R. P.; Babikov, A. F.; Shpilevskaya, L. I.; Shiverskaya, I.P.; Eppel, Sagi; Шмидт, Ф. К.

doi:10.1007/bf00727569

Cited by 12 publications

(12 citation statements)

References 1 publication

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“…It is well known that phenol compounds constitute an important family of priority pollutants of wastewater. Their presence has been confirmed in many different industrial wastewaters from chemical, petrochemical or even from food‐processing industries 1, 2. Due to their toxicity and hazardous character, phenols have to be removed from wastewater before being released into the aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

Comparison between photocatalytic ozonation and other oxidation processes for the removal of phenols from water

Beltrán

Rivas

Gimeno

2005

J of Chemical Tech & Biotech

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Photocatalytic ozonation (1O 3 +VUV+TiO 2 ), ozonation (O 3 ), catalytic ozonation (O 3 +TiO 2 ), ozone photolysis (O 3 +VUV), photocatalysis (TiO 2 +VUV) and photolysis (VUV) have been compared in terms of formation of intermediates, extent of, mineralization (TOC, COD, chloride, nitrate) and kinetics in the aqueous treatment of three phenols (phenol, p-chlorophenol and p-nitrophenol). In all cases, photocatalytic ozonation led to lower degradation times for chemical oxygen demand and total organic carbon removal. Intermediates formed were similar in the different oxidation systems with some exceptions. They can be classified into three different types: polyphenols (resorcinol, catechol, hydroquinone), unsaturated carboxylic acids (maleic and fumaric acids) and saturated carboxylic acids (glyoxylic, formic and oxalic acids). First order kinetic equations have been checked for the oxidation processes studied in the case of the parent compound. Rate constants of these systems have also been calculated.

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Section: Introductionmentioning

confidence: 99%

Comparison between photocatalytic ozonation and other oxidation processes for the removal of phenols from water

Beltrán

Rivas

Gimeno

2005

J of Chemical Tech & Biotech

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“…However, Co catalyst still exhibited the better performance when compared with Ni. A comprehensive investigation on the catalytic activity of metal catalysts for oxidation of phenol reported that the following order of catalyst activity (CuO > CoO > Cr 2 O 3 > NiO > MnO 2 > Fe 3 O 3 > YO 2 > Cd 2 O 3 > ZnO > TiO 2 > Bi 2 O 3 ) was experimentally confirmed [9]. Based on such previous report, it could reasonably be concluded that the catalytic activity of Co is higher than Ni catalyst.…”

Section: Comparison Of Phenol Decomposition Efficiency Of Co and Ni Mmentioning

confidence: 87%

“…However, when the initial concentration of phenol was raised to 100 ppm, the decomposition efficiency of Co catalyst was significantly higher than that of Ni catalyst. As suggested by Kochetkova et al [9], the number of active sites analyzed by gas chemisorption is 16.3 × 10 −19 sites/g-catalyst for Co, and 8.1 × 10 −19 sites/g-catalyst for Ni. It could be confirmed that Co catalyst has better efficiency due to the existence of more active sites compared with those of Ni.…”

Section: Comparison Of Phenol Decomposition Efficiency Of Co and Ni Mmentioning

confidence: 97%

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Metal catalysts impregnated on porous media for aqueous phenol decomposition within three-phase fluidized-bed reactor

Mungmart

Kijsirichareonchai

Tonanon

et al. 2011

Journal of Hazardous Materials

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“…The catalyst of choice is one that yields high activity but at temperatures below the ignition point of carbon. The catalytic activity of the metal oxides during phenol liquid-phase oxidation was tested (Kochetkova et al, 1992) and showed the following typical order:…”

Section: Adsorption On and Thermal Regeneration Of Acmentioning

confidence: 99%

Abatement of Pollutants by Adsorption and Oxidative Catalytic Regeneration

Matatov-Meytal

Sheintuch

1997

Ind. Eng. Chem. Res.

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The adsorption of phenol, and halogenated phenols on granular activated carbon (AC) modified with metal oxide catalyst, followed by catalytic oxidative regeneration, was studied as an efficient technology for the treatment of dilute wastewaters. The advantages of the combination of these technologies are as follows: (1) the process will be accelerated by the high concentrations of pollutants eluted from the adsorbent; (2) a large number of adsorption-regeneration cycles are expected without loss in capacity; and (3) the low-temperature regeneration will be conducted in situ, even in small units, thus improving the economy of the process. Oxidative catalytic regeneration of spent carbons, performed at 240-300 °C with air, completely restored the adsorption capacity of phenol on the ACs modified with catalyst, even after 10 cycles of regeneration. Under similar conditions, only partial recovery of the adsorption capacity was obtained for carbons loaded with p-chlorophenol and p-bromophenol. The adsorption capacity and the surface area of the AC (Filtrasorb-400) diminished somewhat with the impregnation of oxides (Fe 2 O 3 , CuO, and additivities of Cr 2 O 3 or inert silica), but that did not affect the shape of the adsorption isotherms.

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Liquid phase catalytic oxidation of phenol

Cited by 12 publications

References 1 publication

Comparison between photocatalytic ozonation and other oxidation processes for the removal of phenols from water

Comparison between photocatalytic ozonation and other oxidation processes for the removal of phenols from water

Metal catalysts impregnated on porous media for aqueous phenol decomposition within three-phase fluidized-bed reactor

Abatement of Pollutants by Adsorption and Oxidative Catalytic Regeneration

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