Hydrodechlorination and complete degradation of chlorinated compounds with the coupled action of Pd/SiO2 and Fe/SiO2 catalysts: towards industrial catalyst synthesis conditions

Mahy, Julien; Tasseroul, Ludivine; Tromme, Olivier; Lavigne, Benoît; Lambert, Stéphanie

doi:10.1016/j.jece.2019.103014

Article (Scientific journals)

Hydrodechlorination and complete degradation of chlorinated compounds with the coupled action of Pd/SiO2 and Fe/SiO2 catalysts: towards industrial catalyst synthesis conditions

Mahy, Julien; Tasseroul, Ludivine; Tromme, Olivier et al.

2019 • In Journal of Environmental Chemical Engineering, 7 (1)

Peer reviewed

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https://hdl.handle.net/2268/233588

DOI
10.1016/j.jece.2019.103014

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Keywords :

Cogelation process; 2,4,6-trichlorophenol degradation; hydrodechlorination; Pd/SiO2; Fe/SiO2

Abstract :

[en] In this study, Pd/SiO2 and Fe/SiO2 catalysts have been synthesized by the cogelation process for hydrodechlorination applications. Different synthesis conditions were tested to approach the industrial conditions using industrial grade reactants and ambient air drying. The influence of these changes have been studied on the texture and the catalytic activity of the catalysts. The resulting materials are composed of metallic (Pd catalysts) or metallic oxide (Fe catalysts) nanoparticles highly dispersed in porous silica. The catalysts present a high specific surface area (between 250 and 500 m2/g) with a large pore size range between micro-, meso- and macropores. The modifications of the synthesis conditions give catalysts with similar textural properties compared to lab-scale catalysts. The catalytic activity of the binary catalysts have been evaluated on the hydrodechlorination of the 2,4,6-trichlorophenol (TCP) in water. Results show that Pd/SiO2 catalysts are able to dechlorinate the TCP and that Fe/SiO2 materials are able to degrade the resulting phenol. So this process allows a complete degradation of TCP. Industrial conditions catalysts show also similar catalytic results compared to lab-scale catalysts for the hydrodechlorination of the 2,4,6-trichlorophenol (TCP) in water.

Disciplines :

Chemical engineering
Materials science & engineering

Author, co-author :

Mahy, Julien ; Université de Liège - ULiège > Department of Chemical Engineering > Department of Chemical Engineering

Tasseroul, Ludivine

Tromme, Olivier

Lavigne, Benoît ; Université de Liège - ULiège > Department of Chemical Engineering > Department of Chemical Engineering

Lambert, Stéphanie ; Université de Liège - ULiège > Department of Chemical Engineering > Department of Chemical Engineering

Language :

English

Title :

Hydrodechlorination and complete degradation of chlorinated compounds with the coupled action of Pd/SiO2 and Fe/SiO2 catalysts: towards industrial catalyst synthesis conditions

Publication date :

April 2019

Journal title :

Journal of Environmental Chemical Engineering

ISSN :

2213-2929

eISSN :

2213-3437

Publisher :

Elsevier, Netherlands

Volume :

Issue :

Peer reviewed :

Peer reviewed

Available on ORBi :

since 12 March 2019

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