Restrained hysterisis of methane conversion during autothermal reforming with the physically mixed catalyst

Song Ho Cho; Jong Soo Park; Wang Lai Yoon; Ho Tae Lee; Seung Hoon Choi; Shin Kun Ryi; Sung Hyun Kim

doi:10.1016/j.catcom.2005.08.007

Restrained hysterisis of methane conversion during autothermal reforming with the physically mixed catalyst

Song Ho Cho
, Jong Soo Park
, Wang Lai Yoon
, Ho Tae Lee
, Seung Hoon Choi
, Shin Kun Ryi
, Sung Hyun Kim^*

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

The activities of Rh-Mg/Al₂O₃, Pt/ZrO₂ and the physically mixed catalyst of these catalysts were investigated for the autothermal reforming of methane. A hysterisis of autothermal reforming of methane on Rh-Mg/Al₂O₃ was observed with cycles of reaction temperature increase and decrease. However, the hysterisis was restrained on the mixed catalyst of Rh-Mg/Al₂O₃ and Pt/ZrO₂ which showed high methane conversion the same as almost thermodynamic equilibrium. The superior activity of the mixed catalyst results from hydrogen generated on the Pt/ZrO₂ at 400 °C. This reductive gas of hydrogen reduces Rh element of Rh-Mg/Al₂O₃ catalyst. The mixed catalyst showed excellent durability for 100 h and maintained its activity. This catalyst was not deactivated after re-oxidizing with air at low temperature.

Original language	English
Pages (from-to)	42-46
Number of pages	5
Journal	Catalysis Communications
Volume	7
Issue number	1
DOIs	https://doi.org/10.1016/j.catcom.2005.08.007
Publication status	Published - 2006 Jan

Bibliographical note

Funding Information:
The research was performed for the Carbon Dioxide Reduction and Sequestration R&D Center, one of the 21st Century Frontier R&D Programs funded by the Ministry of Science and Technology of Korea.

Keywords

Autothermal reforming
Hysterisis
Physically mixed catalyst
Pt/ZrO
Rh-Mg/AlO

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

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10.1016/j.catcom.2005.08.007

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@article{dcd55d7c01a24cdc81296a6566a5a2d6,

title = "Restrained hysterisis of methane conversion during autothermal reforming with the physically mixed catalyst",

abstract = "The activities of Rh-Mg/Al2O3, Pt/ZrO2 and the physically mixed catalyst of these catalysts were investigated for the autothermal reforming of methane. A hysterisis of autothermal reforming of methane on Rh-Mg/Al2O3 was observed with cycles of reaction temperature increase and decrease. However, the hysterisis was restrained on the mixed catalyst of Rh-Mg/Al2O3 and Pt/ZrO2 which showed high methane conversion the same as almost thermodynamic equilibrium. The superior activity of the mixed catalyst results from hydrogen generated on the Pt/ZrO2 at 400 °C. This reductive gas of hydrogen reduces Rh element of Rh-Mg/Al2O3 catalyst. The mixed catalyst showed excellent durability for 100 h and maintained its activity. This catalyst was not deactivated after re-oxidizing with air at low temperature.",

keywords = "Autothermal reforming, Hysterisis, Physically mixed catalyst, Pt/ZrO, Rh-Mg/AlO",

author = "Cho, \{Song Ho\} and Park, \{Jong Soo\} and Yoon, \{Wang Lai\} and Lee, \{Ho Tae\} and Choi, \{Seung Hoon\} and Ryi, \{Shin Kun\} and Kim, \{Sung Hyun\}",

note = "Funding Information: The research was performed for the Carbon Dioxide Reduction and Sequestration R\&D Center, one of the 21st Century Frontier R\&D Programs funded by the Ministry of Science and Technology of Korea.",

year = "2006",

month = jan,

doi = "10.1016/j.catcom.2005.08.007",

language = "English",

volume = "7",

pages = "42--46",

journal = "Catalysis Communications",

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T1 - Restrained hysterisis of methane conversion during autothermal reforming with the physically mixed catalyst

AU - Cho, Song Ho

AU - Park, Jong Soo

AU - Yoon, Wang Lai

AU - Lee, Ho Tae

AU - Choi, Seung Hoon

AU - Ryi, Shin Kun

AU - Kim, Sung Hyun

N1 - Funding Information: The research was performed for the Carbon Dioxide Reduction and Sequestration R&D Center, one of the 21st Century Frontier R&D Programs funded by the Ministry of Science and Technology of Korea.

PY - 2006/1

Y1 - 2006/1

N2 - The activities of Rh-Mg/Al2O3, Pt/ZrO2 and the physically mixed catalyst of these catalysts were investigated for the autothermal reforming of methane. A hysterisis of autothermal reforming of methane on Rh-Mg/Al2O3 was observed with cycles of reaction temperature increase and decrease. However, the hysterisis was restrained on the mixed catalyst of Rh-Mg/Al2O3 and Pt/ZrO2 which showed high methane conversion the same as almost thermodynamic equilibrium. The superior activity of the mixed catalyst results from hydrogen generated on the Pt/ZrO2 at 400 °C. This reductive gas of hydrogen reduces Rh element of Rh-Mg/Al2O3 catalyst. The mixed catalyst showed excellent durability for 100 h and maintained its activity. This catalyst was not deactivated after re-oxidizing with air at low temperature.

AB - The activities of Rh-Mg/Al2O3, Pt/ZrO2 and the physically mixed catalyst of these catalysts were investigated for the autothermal reforming of methane. A hysterisis of autothermal reforming of methane on Rh-Mg/Al2O3 was observed with cycles of reaction temperature increase and decrease. However, the hysterisis was restrained on the mixed catalyst of Rh-Mg/Al2O3 and Pt/ZrO2 which showed high methane conversion the same as almost thermodynamic equilibrium. The superior activity of the mixed catalyst results from hydrogen generated on the Pt/ZrO2 at 400 °C. This reductive gas of hydrogen reduces Rh element of Rh-Mg/Al2O3 catalyst. The mixed catalyst showed excellent durability for 100 h and maintained its activity. This catalyst was not deactivated after re-oxidizing with air at low temperature.

KW - Autothermal reforming

KW - Hysterisis

KW - Physically mixed catalyst

KW - Pt/ZrO

KW - Rh-Mg/AlO

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U2 - 10.1016/j.catcom.2005.08.007

DO - 10.1016/j.catcom.2005.08.007

M3 - Article

AN - SCOPUS:28844462983

SN - 1566-7367

VL - 7

SP - 42

EP - 46

JO - Catalysis Communications

JF - Catalysis Communications

IS - 1

ER -

Restrained hysterisis of methane conversion during autothermal reforming with the physically mixed catalyst

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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