Effects of metal support interaction on dry reforming of methane over Ni/Ce-Al2O3 catalysts

Sagir Adamu; Abdul Rashid Bawah; Oki Muraza; Zuhair Malaibari; Mohammad M. Hossain

doi:10.1002/cjce.23769

Effects of metal support interaction on dry reforming of methane over Ni/Ce-Al₂O₃ catalysts

Sagir Adamu, Abdul Rashid Bawah, Oki Muraza, Zuhair Malaibari, Mohammad M. Hossain^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Dry (CO₂) reforming of methane was carried out over two newly synthesized Ni20/Ce Γ Al₂O₃ and Ni20/Ce-meso-Al₂O₃ catalysts. XRD patterns indicated that Ni20/Ce-meso-Al₂O₃ exhibits a better dispersion of nickel, while Ni20/Ce Γ Al₂O₃ has larger amounts of nickel crystallites. Based on TPD kinetics analysis, Ni20/Ce-meso-Al₂O₃ had a lesser metal-support interaction than the Ni20/Ce- Γ Al₂O₃. TGA data suggested that the incorporation of ceria into the Al₂O₃ matrix helps to stabilize Ni20/Ce-meso-Al₂O₃ during dry reforming of methane. TPR analysis showed that the synthesized catalysts were sufficiently reducible below 750 ° C. A fixed bed reactor evaluation at 750 ° C showed that both catalysts can facilitate methane reforming to syngas with minimal coking throughout the 30 hr time-on-stream. However, Ni20/Ce-meso-Al₂O₃ is more promising in terms of prolonged stability for dry reforming applications. Moreover, the syngas yield for Ni20/Ce Γ Al₂O₃ was close to equilibrium prediction during the first 1 hr of reaction time.

Original language	English
Pages (from-to)	2425-2434
Number of pages	10
Journal	Canadian Journal of Chemical Engineering
Volume	98
Issue number	11
DOIs	https://doi.org/10.1002/cjce.23769
State	Published - 1 Nov 2020

Bibliographical note

Funding Information:
The author would like to acknowledge the support provided by the Deanship of Scientific Research (DSR) at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project No. IN161022. The support of the KFUPM's Center for Nanotechnology (CENT) in the catalyst testing and product analysis is highly appreciated.

Funding Information:
King Fahd University of Petroleum & Minerals, Grant/Award Number: DSR Project No. IN161022 Funding information

Keywords

catalysis
kinetics

ASJC Scopus subject areas

General Chemical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/cjce.23769

Cite this

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title = "Effects of metal support interaction on dry reforming of methane over Ni/Ce-Al2O3 catalysts",

abstract = "Dry (CO2) reforming of methane was carried out over two newly synthesized Ni20/Ce Γ Al2O3 and Ni20/Ce-meso-Al2O3 catalysts. XRD patterns indicated that Ni20/Ce-meso-Al2O3 exhibits a better dispersion of nickel, while Ni20/Ce Γ Al2O3 has larger amounts of nickel crystallites. Based on TPD kinetics analysis, Ni20/Ce-meso-Al2O3 had a lesser metal-support interaction than the Ni20/Ce- Γ Al2O3. TGA data suggested that the incorporation of ceria into the Al2O3 matrix helps to stabilize Ni20/Ce-meso-Al2O3 during dry reforming of methane. TPR analysis showed that the synthesized catalysts were sufficiently reducible below 750 ° C. A fixed bed reactor evaluation at 750 ° C showed that both catalysts can facilitate methane reforming to syngas with minimal coking throughout the 30 hr time-on-stream. However, Ni20/Ce-meso-Al2O3 is more promising in terms of prolonged stability for dry reforming applications. Moreover, the syngas yield for Ni20/Ce Γ Al2O3 was close to equilibrium prediction during the first 1 hr of reaction time.",

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author = "Sagir Adamu and Bawah, {Abdul Rashid} and Oki Muraza and Zuhair Malaibari and Hossain, {Mohammad M.}",

note = "Funding Information: The author would like to acknowledge the support provided by the Deanship of Scientific Research (DSR) at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project No. IN161022. The support of the KFUPM's Center for Nanotechnology (CENT) in the catalyst testing and product analysis is highly appreciated. Funding Information: King Fahd University of Petroleum & Minerals, Grant/Award Number: DSR Project No. IN161022 Funding information ",

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AU - Malaibari, Zuhair

AU - Hossain, Mohammad M.

N1 - Funding Information: The author would like to acknowledge the support provided by the Deanship of Scientific Research (DSR) at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project No. IN161022. The support of the KFUPM's Center for Nanotechnology (CENT) in the catalyst testing and product analysis is highly appreciated. Funding Information: King Fahd University of Petroleum & Minerals, Grant/Award Number: DSR Project No. IN161022 Funding information

PY - 2020/11/1

Y1 - 2020/11/1

N2 - Dry (CO2) reforming of methane was carried out over two newly synthesized Ni20/Ce Γ Al2O3 and Ni20/Ce-meso-Al2O3 catalysts. XRD patterns indicated that Ni20/Ce-meso-Al2O3 exhibits a better dispersion of nickel, while Ni20/Ce Γ Al2O3 has larger amounts of nickel crystallites. Based on TPD kinetics analysis, Ni20/Ce-meso-Al2O3 had a lesser metal-support interaction than the Ni20/Ce- Γ Al2O3. TGA data suggested that the incorporation of ceria into the Al2O3 matrix helps to stabilize Ni20/Ce-meso-Al2O3 during dry reforming of methane. TPR analysis showed that the synthesized catalysts were sufficiently reducible below 750 ° C. A fixed bed reactor evaluation at 750 ° C showed that both catalysts can facilitate methane reforming to syngas with minimal coking throughout the 30 hr time-on-stream. However, Ni20/Ce-meso-Al2O3 is more promising in terms of prolonged stability for dry reforming applications. Moreover, the syngas yield for Ni20/Ce Γ Al2O3 was close to equilibrium prediction during the first 1 hr of reaction time.

AB - Dry (CO2) reforming of methane was carried out over two newly synthesized Ni20/Ce Γ Al2O3 and Ni20/Ce-meso-Al2O3 catalysts. XRD patterns indicated that Ni20/Ce-meso-Al2O3 exhibits a better dispersion of nickel, while Ni20/Ce Γ Al2O3 has larger amounts of nickel crystallites. Based on TPD kinetics analysis, Ni20/Ce-meso-Al2O3 had a lesser metal-support interaction than the Ni20/Ce- Γ Al2O3. TGA data suggested that the incorporation of ceria into the Al2O3 matrix helps to stabilize Ni20/Ce-meso-Al2O3 during dry reforming of methane. TPR analysis showed that the synthesized catalysts were sufficiently reducible below 750 ° C. A fixed bed reactor evaluation at 750 ° C showed that both catalysts can facilitate methane reforming to syngas with minimal coking throughout the 30 hr time-on-stream. However, Ni20/Ce-meso-Al2O3 is more promising in terms of prolonged stability for dry reforming applications. Moreover, the syngas yield for Ni20/Ce Γ Al2O3 was close to equilibrium prediction during the first 1 hr of reaction time.

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