Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant

P. L. Tan; C. T. Au; S. Y. Lai

doi:10.1007/s10562-006-0209-5

Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant

P. L. Tan, C. T. Au, S. Y. Lai^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

39 Citations (Scopus)

Abstract

Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant (GHSV = 1600 mLh^-1 g^-1) was investigated. Mn/HZSM-5 was prepared by impregnation of HZSM-5 with manganese acetate tetrahydrate solution; Mn₃O₄ formed was the precursor of active phase for methane activation. The induction period over Mn/HZSM-5 catalyst before aromatic products appear was long at 700 °C. This period shortened with a rise of the reaction temperature to 800 °C. XPS and TPO results showed that the partly carburized or carburized Mn species formed are probably responsible for methane activation.

Original language	English
Pages (from-to)	239-245
Number of pages	7
Journal	Catalysis Letters
Volume	112
Issue number	3-4
DOIs	https://doi.org/10.1007/s10562-006-0209-5
Publication status	Published - Dec 2006

User-Defined Keywords

Active phase
Methane aromatization
Mn/HZSM-5

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10.1007/s10562-006-0209-5

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title = "Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant",

abstract = "Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant (GHSV = 1600 mLh-1 g-1) was investigated. Mn/HZSM-5 was prepared by impregnation of HZSM-5 with manganese acetate tetrahydrate solution; Mn3O4 formed was the precursor of active phase for methane activation. The induction period over Mn/HZSM-5 catalyst before aromatic products appear was long at 700 °C. This period shortened with a rise of the reaction temperature to 800 °C. XPS and TPO results showed that the partly carburized or carburized Mn species formed are probably responsible for methane activation.",

keywords = "Active phase, Methane aromatization, Mn/HZSM-5",

author = "Tan, {P. L.} and Au, {C. T.} and Lai, {S. Y.}",

note = "Funding Information: The work described above was supported by a grant (FRG/99–00/II-25) from Hong Kong Baptist University. Pinglian Tan thanks the HKBU for a Ph. D. studentship.",

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AU - Tan, P. L.

AU - Au, C. T.

AU - Lai, S. Y.

N1 - Funding Information: The work described above was supported by a grant (FRG/99–00/II-25) from Hong Kong Baptist University. Pinglian Tan thanks the HKBU for a Ph. D. studentship.

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N2 - Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant (GHSV = 1600 mLh-1 g-1) was investigated. Mn/HZSM-5 was prepared by impregnation of HZSM-5 with manganese acetate tetrahydrate solution; Mn3O4 formed was the precursor of active phase for methane activation. The induction period over Mn/HZSM-5 catalyst before aromatic products appear was long at 700 °C. This period shortened with a rise of the reaction temperature to 800 °C. XPS and TPO results showed that the partly carburized or carburized Mn species formed are probably responsible for methane activation.

AB - Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant (GHSV = 1600 mLh-1 g-1) was investigated. Mn/HZSM-5 was prepared by impregnation of HZSM-5 with manganese acetate tetrahydrate solution; Mn3O4 formed was the precursor of active phase for methane activation. The induction period over Mn/HZSM-5 catalyst before aromatic products appear was long at 700 °C. This period shortened with a rise of the reaction temperature to 800 °C. XPS and TPO results showed that the partly carburized or carburized Mn species formed are probably responsible for methane activation.

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ER -

Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant

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