VOCs abatement in adiabatic monolithic reactors: Heat effects, transport limitations and design considerations

Rodríguez, María Laura; Cadús, Luís E.; Borio, Daniel Oscar

doi:10.1016/j.cej.2016.05.055

Cited by 21 publications

(14 citation statements)

References 27 publications

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“…Monolithic catalysts offer a high specific geometric surface area and a low pressure drop, for use at high space velocities [4,5,13,14]. Considerable effort has been made to develop the SCR-DeNOx process for simultaneous removal of NOx and dioxine [1,7,9,[15][16][17] as well as VOC pollutants in flue gases using commercial V2O5-WO3/TiO2 catalyst [6,7,[18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…The catalysts may be applied in a monolithic form. Usually, the monolithic catalysts applied for this purpose have a honeycomb-like shape with parallel straight channels for the flow of the gas phase [4,5,12,22].…”

Section: Introductionmentioning

confidence: 99%

“…Depending on the objectives, applications and computational limitations, these models can be classified as one-dimensional (1-D), two-dimensional (2-D) and three-dimensional models (3-D), or as washcoat (catalyst layer), single channel, or multichannel (full reactor). [22,27,28,[31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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A Modelling Approach of the Catalytic Oxidation of Volatile Organic Compounds in the SCR-DeNOx Monolithic Reactor

Lazar¹,

Koeser²,

Fechete³

et al. 2020

Rev. Chim.

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Monolithic reactors play an important role in the integrated approach to environmental protection, especially in air pollution abatement. Mathematical modelling of catalytic reactors has become a key procedure in the design, development and optimisation of many industrial processes. The objective of this study was the modelling and simulation of the catalytic oxidation of volatile organic compounds by a commercial V2O5-WO3/TiO2 honeycomb catalyst, specific for the SCR-DeNOx process in high-dust flue gases from stationary incineration. The mathematical model is developed for the numerical simulation of a tubular plug flow reactor, using mass balance equation to predict results for benzene conversion under isothermal conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Modelling Approach of the Catalytic Oxidation of Volatile Organic Compounds in the SCR-DeNOx Monolithic Reactor

Lazar¹,

Koeser²,

Fechete³

et al. 2020

Rev. Chim.

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“…In the past decade, monolithic catalysts have attracted much attention from both the academic community and industrial sector because of their attractive application such as VOCs combustion, production of hydrogen, selective catalytic reduction of NOx with NH 3 , the Fischer‐Tropsch synthesis, Biodiesel production, and used as efficient reactors . Nowadays, the monolithic catalysts and reactors are regarded as a very promising alternate to conventional pellets or powders, owing to the prominent advantages of low pressure drop, low mass transfer resistance, ease of scale‐up ,, …”

Section: Introductionmentioning

confidence: 99%

Mechanical Stability of Monolithic Catalysts: The Influence Mechanism of Primer on the Washcoat Adhesion to the Metallic Substrates

Zhang

2019

ChemistrySelect

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The mechanical stability of monolithic catalysts significantly impacts the performance of industrial monolithic reactors, because the washcoat layer usually shows bad adhesion to the substrate. In this paper, to obtain washcoated monolith with high mechanical stability, a modified method is chosen: A primer is introduced first and an alumina slurry coating is further washcoated on FeCrAl alloy foils. Advisable coating compositions are determined and it is found that the calcination of primer has an obviously bad influence on the washcoat adhesion property. Furthermore, the influence mech-anism of primer on the washcoat adhesion is discussed. It is speculated that the cross-linkings between the alumina particles and PEG make the primer disperse homogeneously and connect tightly with the pretreated metallic substrate. When coating the second slurry layer, the dissolution of primer will narrow the gap between the primer and the slurry coating layer, which makes the particles at the primer-slurry interface connect together, and all of these are conductive to obtain homogeneous and tightness washcoat, showing good adhesion to the metallic substrate.

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“…The European Commission sets an emission limit value (ELV) of 20 mg of VOCs/Nm 3 in a stream discharged into the atmosphere. 8 The reduction of VOCs from gas waste streams to acceptable levels is a serious challenge for the global chemical industry. There are several available techniques for VOCs control.…”

mentioning

confidence: 99%

Toluene, Methanol and Benzaldehyde Removal from Gas Streams by Adsorption onto Natural Clay and Faujasite-Y type Zeolite

Zaitan

Mohamed

Váldes

et al. 2016

ACSi

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VOCs abatement in adiabatic monolithic reactors: Heat effects, transport limitations and design considerations

Cited by 21 publications

References 27 publications

A Modelling Approach of the Catalytic Oxidation of Volatile Organic Compounds in the SCR-DeNOx Monolithic Reactor

A Modelling Approach of the Catalytic Oxidation of Volatile Organic Compounds in the SCR-DeNOx Monolithic Reactor

Mechanical Stability of Monolithic Catalysts: The Influence Mechanism of Primer on the Washcoat Adhesion to the Metallic Substrates

Toluene, Methanol and Benzaldehyde Removal from Gas Streams by Adsorption onto Natural Clay and Faujasite-Y type Zeolite

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