Carbon dioxide reforming of methane over Ni/CaO/Al2O3

Hyun Seog Roh; Zhong Wen Liu; H. S. Potdar; Jae Woo Kim; Ki Won Jun

Carbon dioxide reforming of methane over Ni/CaO/Al₂O₃

Hyun Seog Roh, Zhong Wen Liu, H. S. Potdar, Jae Woo Kim, Ki Won Jun

Division of Environmental Engineering

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

7 Citations (Scopus)

Abstract

Ni catalysts supported on CaO-precoated Al₂O₃ were prepared and characterized by BET, XRD and TPR techniques. The Ni/CaO/Al ₂O₃ catalysts with various CaO loadings were applied to carbon dioxide reforming of CH₄. All the catalysts showed a fairly good stability but the activity of Ni/CaO/Al₂O₃ depended upon the amount of CaO. Among the catalysts tested, the Ni/CaO/Al ₂O₃ catalyst with a Ca/Al ratio of 0.04 exhibited the highest activity and stability. The interaction between Ni and the support was changed with the addition of CaO and the variation of Ca/Al ratio. Based on the characterization results, the promotional effect of CaO on Ni/-Al ₂O₃ resulted from (1) the interaction between Ni and CaO, (2) the stabilization of CaO on Al₂O₃ and (3) the strong basicity of CaO. It was suggested that the highly dispersed CaO species are effective to obtain active and stable Ni/CaO/Al₂O₃ catalysts in carbon dioxide reforming of methane.

Original language	English
Pages (from-to)	762-767
Number of pages	6
Journal	Journal of Industrial and Engineering Chemistry
Volume	9
Issue number	6
Publication status	Published - 2003

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)

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title = "Carbon dioxide reforming of methane over Ni/CaO/Al2O3",

abstract = "Ni catalysts supported on CaO-precoated Al2O3 were prepared and characterized by BET, XRD and TPR techniques. The Ni/CaO/Al 2O3 catalysts with various CaO loadings were applied to carbon dioxide reforming of CH4. All the catalysts showed a fairly good stability but the activity of Ni/CaO/Al2O3 depended upon the amount of CaO. Among the catalysts tested, the Ni/CaO/Al 2O3 catalyst with a Ca/Al ratio of 0.04 exhibited the highest activity and stability. The interaction between Ni and the support was changed with the addition of CaO and the variation of Ca/Al ratio. Based on the characterization results, the promotional effect of CaO on Ni/-Al 2O3 resulted from (1) the interaction between Ni and CaO, (2) the stabilization of CaO on Al2O3 and (3) the strong basicity of CaO. It was suggested that the highly dispersed CaO species are effective to obtain active and stable Ni/CaO/Al2O3 catalysts in carbon dioxide reforming of methane.",

author = "Roh, {Hyun Seog} and Liu, {Zhong Wen} and Potdar, {H. S.} and Kim, {Jae Woo} and Jun, {Ki Won}",

year = "2003",

language = "English",

volume = "9",

pages = "762--767",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

publisher = "Korean Society of Industrial Engineering Chemistry",

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TY - JOUR

T1 - Carbon dioxide reforming of methane over Ni/CaO/Al2O3

AU - Roh, Hyun Seog

AU - Liu, Zhong Wen

AU - Potdar, H. S.

AU - Kim, Jae Woo

AU - Jun, Ki Won

PY - 2003

Y1 - 2003

N2 - Ni catalysts supported on CaO-precoated Al2O3 were prepared and characterized by BET, XRD and TPR techniques. The Ni/CaO/Al 2O3 catalysts with various CaO loadings were applied to carbon dioxide reforming of CH4. All the catalysts showed a fairly good stability but the activity of Ni/CaO/Al2O3 depended upon the amount of CaO. Among the catalysts tested, the Ni/CaO/Al 2O3 catalyst with a Ca/Al ratio of 0.04 exhibited the highest activity and stability. The interaction between Ni and the support was changed with the addition of CaO and the variation of Ca/Al ratio. Based on the characterization results, the promotional effect of CaO on Ni/-Al 2O3 resulted from (1) the interaction between Ni and CaO, (2) the stabilization of CaO on Al2O3 and (3) the strong basicity of CaO. It was suggested that the highly dispersed CaO species are effective to obtain active and stable Ni/CaO/Al2O3 catalysts in carbon dioxide reforming of methane.

AB - Ni catalysts supported on CaO-precoated Al2O3 were prepared and characterized by BET, XRD and TPR techniques. The Ni/CaO/Al 2O3 catalysts with various CaO loadings were applied to carbon dioxide reforming of CH4. All the catalysts showed a fairly good stability but the activity of Ni/CaO/Al2O3 depended upon the amount of CaO. Among the catalysts tested, the Ni/CaO/Al 2O3 catalyst with a Ca/Al ratio of 0.04 exhibited the highest activity and stability. The interaction between Ni and the support was changed with the addition of CaO and the variation of Ca/Al ratio. Based on the characterization results, the promotional effect of CaO on Ni/-Al 2O3 resulted from (1) the interaction between Ni and CaO, (2) the stabilization of CaO on Al2O3 and (3) the strong basicity of CaO. It was suggested that the highly dispersed CaO species are effective to obtain active and stable Ni/CaO/Al2O3 catalysts in carbon dioxide reforming of methane.

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JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

SN - 1226-086X

IS - 6

ER -

Carbon dioxide reforming of methane over Ni/CaO/Al2O3

Abstract

All Science Journal Classification (ASJC) codes

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Carbon dioxide reforming of methane over Ni/CaO/Al₂O₃