Comparison of preparation methods for improving coke resistance of Ni-Ru/MgAl2O4 catalysts in dry reforming of methane for syngas production

Dahye Song; Unho Jung; Hyo Been Im; Tae Ho Lee; Young Eun Kim; Ki Bong Lee; Kee Young Koo

doi:10.1080/15567036.2021.1994669

Comparison of preparation methods for improving coke resistance of Ni-Ru/MgAl₂O₄ catalysts in dry reforming of methane for syngas production

Dahye Song, Unho Jung, Hyo Been Im, Tae Ho Lee, Young Eun Kim, Ki Bong Lee, Kee Young Koo

Department of Chemical and Biological Engineering

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

1 Citation (Scopus)

Abstract

A small loading of highly dispersed Ru on Ni/MgAl₂O₄ catalyst was investigated in the dry reforming of methane (DRM) process. The catalysts were synthesized by impregnation and deposition-precipitation methods; the DRM reaction was performed at CH₄/CO₂/N₂ = 1/1/1 and 600‒750°C. The bimetallic Ni‒Ru catalysts exhibited improved reducibility and metal dispersion compared with that of the Ni catalyst. Among the synthesized catalysts, the Ru(D)/Ni(I)/MgAl₂O₄ catalyst had the highest metal dispersion (7.23%) and largest amount of CO₂ desorption (135 μmol/g). Thus, this catalyst exhibited the highest CH₄ conversion (85.6%) at 750°C. Additionally, coke deposition of only 2.69% occurred during the stability test.

Original language	English
Pages (from-to)	10755-10765
Number of pages	11
Journal	Energy Sources, Part A: Recovery, Utilization and Environmental Effects
Volume	44
Issue number	4
DOIs	https://doi.org/10.1080/15567036.2021.1994669
Publication status	Published - 2022

Keywords

Coke resistance
Ru‒Ni/MgAlO
bimetallic catalyst
dry reforming of methane
syngas

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Fuel Technology
Energy Engineering and Power Technology

UN SDGs

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

Access to Document

10.1080/15567036.2021.1994669

Cite this

Comparison of preparation methods for improving coke resistance of Ni-Ru/MgAl₂O₄ catalysts in dry reforming of methane for syngas production. / Song, Dahye; Jung, Unho; Im, Hyo Been et al.
In: Energy Sources, Part A: Recovery, Utilization and Environmental Effects, Vol. 44, No. 4, 2022, p. 10755-10765.

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

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title = "Comparison of preparation methods for improving coke resistance of Ni-Ru/MgAl2O4 catalysts in dry reforming of methane for syngas production",

abstract = "A small loading of highly dispersed Ru on Ni/MgAl2O4 catalyst was investigated in the dry reforming of methane (DRM) process. The catalysts were synthesized by impregnation and deposition-precipitation methods; the DRM reaction was performed at CH4/CO2/N2 = 1/1/1 and 600‒750°C. The bimetallic Ni‒Ru catalysts exhibited improved reducibility and metal dispersion compared with that of the Ni catalyst. Among the synthesized catalysts, the Ru(D)/Ni(I)/MgAl2O4 catalyst had the highest metal dispersion (7.23%) and largest amount of CO2 desorption (135 μmol/g). Thus, this catalyst exhibited the highest CH4 conversion (85.6%) at 750°C. Additionally, coke deposition of only 2.69% occurred during the stability test.",

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AU - Lee, Tae Ho

AU - Kim, Young Eun

AU - Lee, Ki Bong

AU - Koo, Kee Young

N1 - Funding Information: This study was supported by the Ministry of Trade, Industry & Energy (MOTIE) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) of the Republic of Korea (No.20203030030080). Publisher Copyright: © 2021 Taylor & Francis Group, LLC.

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N2 - A small loading of highly dispersed Ru on Ni/MgAl2O4 catalyst was investigated in the dry reforming of methane (DRM) process. The catalysts were synthesized by impregnation and deposition-precipitation methods; the DRM reaction was performed at CH4/CO2/N2 = 1/1/1 and 600‒750°C. The bimetallic Ni‒Ru catalysts exhibited improved reducibility and metal dispersion compared with that of the Ni catalyst. Among the synthesized catalysts, the Ru(D)/Ni(I)/MgAl2O4 catalyst had the highest metal dispersion (7.23%) and largest amount of CO2 desorption (135 μmol/g). Thus, this catalyst exhibited the highest CH4 conversion (85.6%) at 750°C. Additionally, coke deposition of only 2.69% occurred during the stability test.

AB - A small loading of highly dispersed Ru on Ni/MgAl2O4 catalyst was investigated in the dry reforming of methane (DRM) process. The catalysts were synthesized by impregnation and deposition-precipitation methods; the DRM reaction was performed at CH4/CO2/N2 = 1/1/1 and 600‒750°C. The bimetallic Ni‒Ru catalysts exhibited improved reducibility and metal dispersion compared with that of the Ni catalyst. Among the synthesized catalysts, the Ru(D)/Ni(I)/MgAl2O4 catalyst had the highest metal dispersion (7.23%) and largest amount of CO2 desorption (135 μmol/g). Thus, this catalyst exhibited the highest CH4 conversion (85.6%) at 750°C. Additionally, coke deposition of only 2.69% occurred during the stability test.

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