Oxidative steam reforming of methane under atmospheric and pressurized conditions over Pd/NiO-MgO solid solution catalysts

Mohammad Nurunnabi; Yuya Mukainakano; Shigeru Kado; Tomohisa Miyazawa; Kazu Okumura; Toshihiro Miyao; Shuichi Naito; Kimihito Suzuki; Ken Ichiro Fujimoto; Kimio Kunimori; Keiichi Tomishige

doi:10.1016/j.apcata.2006.03.054

Oxidative steam reforming of methane under atmospheric and pressurized conditions over Pd/NiO-MgO solid solution catalysts

Mohammad Nurunnabi, Yuya Mukainakano, Shigeru Kado, Tomohisa Miyazawa, Kazu Okumura, Toshihiro Miyao, Shuichi Naito, Kimihito Suzuki, Ken Ichiro Fujimoto, Kimio Kunimori, Keiichi Tomishige

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

59 Citations (Scopus)

Abstract

The effect of the Pd loading in NiO-MgO solid solution was investigated in oxidative steam reforming of methane under atmospheric and pressurized conditions. The small amounts of Pd addition on Ni_0.2Mg_0.8O can inhibit the oxidation of Ni species and the mixture can maintain the reforming ability at low W/F conditions under atmospheric pressure, where Ni_0.2Mg_0.8O catalyst deactivated. In addition, Ni_0.2Mg_0.8O catalyst improved remarkably, gaining both high activity and excellent stability by the addition of small amounts of Pd under pressurized conditions. The deactivation rate was closely related to the amount of deposited carbon. Characterization results of TEM, TPR, EXAFS and FTIR suggest that Pd-Ni alloy particles are formed on Pd/Ni_0.2Mg_0.8O catalysts. The Pd-Ni alloy particles with a low ratio of Pd to Ni can play an important role in the high resistance to carbon deposition.

Original language	English
Pages (from-to)	1-12
Number of pages	12
Journal	Applied Catalysis A: General
Volume	308
DOIs	https://doi.org/10.1016/j.apcata.2006.03.054
Publication status	Published - 2006 Jul 10
Externally published	Yes

Keywords

Carbon deposition
Deactivation
Methane
NiO-MgO solid solution
Oxidative reforming
Pd
Steam reforming

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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Oxidative steam reforming of methane under atmospheric and pressurized conditions over Pd/NiO-MgO solid solution catalysts. / Nurunnabi, Mohammad; Mukainakano, Yuya; Kado, Shigeru; Miyazawa, Tomohisa; Okumura, Kazu; Miyao, Toshihiro; Naito, Shuichi; Suzuki, Kimihito; Fujimoto, Ken Ichiro; Kunimori, Kimio; Tomishige, Keiichi.

In: Applied Catalysis A: General, Vol. 308, 10.07.2006, p. 1-12.

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

Nurunnabi, Mohammad ; Mukainakano, Yuya ; Kado, Shigeru ; Miyazawa, Tomohisa ; Okumura, Kazu ; Miyao, Toshihiro ; Naito, Shuichi ; Suzuki, Kimihito ; Fujimoto, Ken Ichiro ; Kunimori, Kimio ; Tomishige, Keiichi. / Oxidative steam reforming of methane under atmospheric and pressurized conditions over Pd/NiO-MgO solid solution catalysts. In: Applied Catalysis A: General. 2006 ; Vol. 308. pp. 1-12.

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abstract = "The effect of the Pd loading in NiO-MgO solid solution was investigated in oxidative steam reforming of methane under atmospheric and pressurized conditions. The small amounts of Pd addition on Ni0.2Mg0.8O can inhibit the oxidation of Ni species and the mixture can maintain the reforming ability at low W/F conditions under atmospheric pressure, where Ni0.2Mg0.8O catalyst deactivated. In addition, Ni0.2Mg0.8O catalyst improved remarkably, gaining both high activity and excellent stability by the addition of small amounts of Pd under pressurized conditions. The deactivation rate was closely related to the amount of deposited carbon. Characterization results of TEM, TPR, EXAFS and FTIR suggest that Pd-Ni alloy particles are formed on Pd/Ni0.2Mg0.8O catalysts. The Pd-Ni alloy particles with a low ratio of Pd to Ni can play an important role in the high resistance to carbon deposition.",

keywords = "Carbon deposition, Deactivation, Methane, NiO-MgO solid solution, Oxidative reforming, Pd, Steam reforming",

author = "Mohammad Nurunnabi and Yuya Mukainakano and Shigeru Kado and Tomohisa Miyazawa and Kazu Okumura and Toshihiro Miyao and Shuichi Naito and Kimihito Suzuki and Fujimoto, {Ken Ichiro} and Kimio Kunimori and Keiichi Tomishige",

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AU - Nurunnabi, Mohammad

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AU - Miyazawa, Tomohisa

AU - Okumura, Kazu

AU - Miyao, Toshihiro

AU - Naito, Shuichi

AU - Suzuki, Kimihito

AU - Fujimoto, Ken Ichiro

AU - Kunimori, Kimio

AU - Tomishige, Keiichi

PY - 2006/7/10

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N2 - The effect of the Pd loading in NiO-MgO solid solution was investigated in oxidative steam reforming of methane under atmospheric and pressurized conditions. The small amounts of Pd addition on Ni0.2Mg0.8O can inhibit the oxidation of Ni species and the mixture can maintain the reforming ability at low W/F conditions under atmospheric pressure, where Ni0.2Mg0.8O catalyst deactivated. In addition, Ni0.2Mg0.8O catalyst improved remarkably, gaining both high activity and excellent stability by the addition of small amounts of Pd under pressurized conditions. The deactivation rate was closely related to the amount of deposited carbon. Characterization results of TEM, TPR, EXAFS and FTIR suggest that Pd-Ni alloy particles are formed on Pd/Ni0.2Mg0.8O catalysts. The Pd-Ni alloy particles with a low ratio of Pd to Ni can play an important role in the high resistance to carbon deposition.

AB - The effect of the Pd loading in NiO-MgO solid solution was investigated in oxidative steam reforming of methane under atmospheric and pressurized conditions. The small amounts of Pd addition on Ni0.2Mg0.8O can inhibit the oxidation of Ni species and the mixture can maintain the reforming ability at low W/F conditions under atmospheric pressure, where Ni0.2Mg0.8O catalyst deactivated. In addition, Ni0.2Mg0.8O catalyst improved remarkably, gaining both high activity and excellent stability by the addition of small amounts of Pd under pressurized conditions. The deactivation rate was closely related to the amount of deposited carbon. Characterization results of TEM, TPR, EXAFS and FTIR suggest that Pd-Ni alloy particles are formed on Pd/Ni0.2Mg0.8O catalysts. The Pd-Ni alloy particles with a low ratio of Pd to Ni can play an important role in the high resistance to carbon deposition.

KW - Carbon deposition

KW - Deactivation

KW - Methane

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KW - Oxidative reforming

KW - Pd

KW - Steam reforming

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