Article (Scientific journals)
Enhancement of the catalytic performances and lifetime of Ni/γ-Al2O3 catalysts for the steam toluene reforming via the combination of dopants: Inspection of Cu, Co, Fe, Mn and Mo species addition
Claude, Vincent; Mahy, Julien; Tilkin, Rémi et al.
2020In Materials Today Chemistry, 15, p. 100229
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Keywords :
Ni/γ-Al2O3; toluene reforming; metallic doping; secondary catalyst; bio-syngas purification; Sol-Gel process
Abstract :
[en] In this work, the influence of metallic dopant addition in 10 wt. % Ni/γ-Al2O3 catalyst were studied on the material physico-chemical properties and catalytic activity for the toluene steam reforming. Seventeen doped Ni/γ-Al2O3 catalysts were synthesized by sol-gel process. The aim of the study was to determine which elements were the most performing for the doping of 10 wt. % Ni/γ-Al2O3 catalysts. The influence of the dopants were studied through different physico-chemical techniques. It appeared that some dopants showed lower catalytic performances due to high carbon deactivation. Contrarily, some dopants increased the resistance to coking while also improving the catalytic activity. Different mechanisms were proposed to explain these modifications of catalytic behavior. Among all doped Ni/γ-Al2O3 catalysts, the samples which combined Mn+Mo or Co+Mo dopants showed the most performing catalytic performances at 650 °C. Both samples showed high toluene reforming activity and low amounts of carbon deposit.
Disciplines :
Materials science & engineering
Chemical engineering
Author, co-author :
Claude, Vincent ;  Université de Liège > Department of Chemical Engineering > Génie chimique - Nanomatériaux et interfaces
Mahy, Julien  ;  Université de Liège - ULiège > Department of Chemical Engineering > Nanomaterials, Catalysis, Electrochemistry
Tilkin, Rémi  ;  Université de Liège - ULiège > Department of Chemical Engineering > Nanomaterials, Catalysis, Electrochemistry
Lambert, Stéphanie  ;  Université de Liège - ULiège > Department of Chemical Engineering > Nanomaterials, Catalysis, Electrochemistry
Language :
English
Title :
Enhancement of the catalytic performances and lifetime of Ni/γ-Al2O3 catalysts for the steam toluene reforming via the combination of dopants: Inspection of Cu, Co, Fe, Mn and Mo species addition
Publication date :
2020
Journal title :
Materials Today Chemistry
eISSN :
2468-5194
Publisher :
Elsevier
Volume :
15
Pages :
100229
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 November 2019

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