Studying the stability of Ni supported on modified with CeO2 alumina catalysts for the biogas dry reforming reaction

N. D. Charisiou; A. Iordanidis; K. Polychronopoulou; I. V. Yentekakis; M. A. Goula

doi:10.1016/j.matpr.2018.09.081

Studying the stability of Ni supported on modified with CeO₂ alumina catalysts for the biogas dry reforming reaction

N. D. Charisiou, A. Iordanidis, K. Polychronopoulou, I. V. Yentekakis, M. A. Goula

Mechanical & Nuclear Engineering

Research output: Contribution to journal › Conference article › peer-review

22 Scopus citations

Abstract

In the present study, the stability of Ni supported on γ-Al₂O₃ modified with CeO₂ (10 and 20 wt%) catalysts during the biogas dry reforming reaction for syngas production was investigated. Specifically, time-on-stream experiments were conducted at different reaction temperatures and Weight-based Hourly Space Velocities (WHSVs); CH₄ and CO₂ conversions, and H₂ and CO yields were systematically recorded over time-on-stream for all catalysts. Calcined and reduced catalytic samples were characterized using N₂ adsorption/desorption, inductively coupled plasma spectrometry (ICP), X-ray diffraction (XRD), temperature programmed reduction and desorption (H₂-TPR, NH₃-and CO₂-TPD). The addition of ceria provided catalysts with improved activity, hydrogen selectivity and stability for the whole temperature range investigated. Thermal analysis (TGA-DTG) and transmission electron microscopy (TEM) results indicated that the deposited carbon on the catalytic surface was less graphitic for the Ni/CeO₂-Al₂O₃ ones.

Original language	British English
Pages (from-to)	27607-27616
Number of pages	10
Journal	Materials Today: Proceedings
Volume	5
Issue number	4
DOIs	https://doi.org/10.1016/j.matpr.2018.09.081
State	Published - 2018
Event	11th Panhellenic Scientific Conference on Chemical Engineering, PSCCE 2017 - Thessaloniki, Greece Duration: 25 May 2017 → 27 May 2017

Keywords

Biogas dry reforming
Carbon deposition
Ceria modified alumina
Deactivation
Nickel catalysts
Syngas production

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10.1016/j.matpr.2018.09.081

Cite this

@article{45f46303a6bf4cb3b8717b6a865f4056,

title = "Studying the stability of Ni supported on modified with CeO2 alumina catalysts for the biogas dry reforming reaction",

abstract = "In the present study, the stability of Ni supported on γ-Al2O3 modified with CeO2 (10 and 20 wt%) catalysts during the biogas dry reforming reaction for syngas production was investigated. Specifically, time-on-stream experiments were conducted at different reaction temperatures and Weight-based Hourly Space Velocities (WHSVs); CH4 and CO2 conversions, and H2 and CO yields were systematically recorded over time-on-stream for all catalysts. Calcined and reduced catalytic samples were characterized using N2 adsorption/desorption, inductively coupled plasma spectrometry (ICP), X-ray diffraction (XRD), temperature programmed reduction and desorption (H2-TPR, NH3-and CO2-TPD). The addition of ceria provided catalysts with improved activity, hydrogen selectivity and stability for the whole temperature range investigated. Thermal analysis (TGA-DTG) and transmission electron microscopy (TEM) results indicated that the deposited carbon on the catalytic surface was less graphitic for the Ni/CeO2-Al2O3 ones.",

keywords = "Biogas dry reforming, Carbon deposition, Ceria modified alumina, Deactivation, Nickel catalysts, Syngas production",

author = "Charisiou, {N. D.} and A. Iordanidis and K. Polychronopoulou and Yentekakis, {I. V.} and Goula, {M. A.}",

note = "Funding Information: The authors are grateful for the financial support from the Collaboration Research Grant (Grant No. RDU182302 ) and Internal University Grant (Grant No. RDU1903130 ) by University Malaysia Pahang . Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd.; 11th Panhellenic Scientific Conference on Chemical Engineering, PSCCE 2017 ; Conference date: 25-05-2017 Through 27-05-2017",

year = "2018",

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language = "British English",

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AU - Charisiou, N. D.

AU - Iordanidis, A.

AU - Polychronopoulou, K.

AU - Yentekakis, I. V.

AU - Goula, M. A.

N1 - Funding Information: The authors are grateful for the financial support from the Collaboration Research Grant (Grant No. RDU182302 ) and Internal University Grant (Grant No. RDU1903130 ) by University Malaysia Pahang . Publisher Copyright: © 2018 Elsevier Ltd.

PY - 2018

Y1 - 2018

N2 - In the present study, the stability of Ni supported on γ-Al2O3 modified with CeO2 (10 and 20 wt%) catalysts during the biogas dry reforming reaction for syngas production was investigated. Specifically, time-on-stream experiments were conducted at different reaction temperatures and Weight-based Hourly Space Velocities (WHSVs); CH4 and CO2 conversions, and H2 and CO yields were systematically recorded over time-on-stream for all catalysts. Calcined and reduced catalytic samples were characterized using N2 adsorption/desorption, inductively coupled plasma spectrometry (ICP), X-ray diffraction (XRD), temperature programmed reduction and desorption (H2-TPR, NH3-and CO2-TPD). The addition of ceria provided catalysts with improved activity, hydrogen selectivity and stability for the whole temperature range investigated. Thermal analysis (TGA-DTG) and transmission electron microscopy (TEM) results indicated that the deposited carbon on the catalytic surface was less graphitic for the Ni/CeO2-Al2O3 ones.

AB - In the present study, the stability of Ni supported on γ-Al2O3 modified with CeO2 (10 and 20 wt%) catalysts during the biogas dry reforming reaction for syngas production was investigated. Specifically, time-on-stream experiments were conducted at different reaction temperatures and Weight-based Hourly Space Velocities (WHSVs); CH4 and CO2 conversions, and H2 and CO yields were systematically recorded over time-on-stream for all catalysts. Calcined and reduced catalytic samples were characterized using N2 adsorption/desorption, inductively coupled plasma spectrometry (ICP), X-ray diffraction (XRD), temperature programmed reduction and desorption (H2-TPR, NH3-and CO2-TPD). The addition of ceria provided catalysts with improved activity, hydrogen selectivity and stability for the whole temperature range investigated. Thermal analysis (TGA-DTG) and transmission electron microscopy (TEM) results indicated that the deposited carbon on the catalytic surface was less graphitic for the Ni/CeO2-Al2O3 ones.

KW - Biogas dry reforming

KW - Carbon deposition

KW - Ceria modified alumina

KW - Deactivation

KW - Nickel catalysts

KW - Syngas production

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