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- Title
Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant.
- Authors
Tan, P. L.; Au, C. T.; Lai, S. Y.
- Abstract
Methane dehydrogenation and aromatization over 4 wt% Mn/HZSM-5 in the absence of an oxidant (GHSV = 1600 mL h−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.
- Subjects
METHANE; DEHYDROGENATION; ZEOLITES; MANGANESE compounds; AROMATIC compounds; ACTIVATION (Chemistry); OXIDIZING agents
- Publication
Catalysis Letters, 2006, Vol 112, Issue 3/4, p239
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-006-0209-5