Activities of MFI-supported rhenium catalysts for the aromatization of methane: Effect of cationic form of the inorganic carrier

Alper Sarıoğlan, Ömer Tunç Savaşçı, Ayşe Erdem-Şenatalar*, Vu Thu Ha, Gilbert Sapaly, Younès Ben Taârit

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

MFI type inorganic carrier was used in two different cationic forms, hydrogen and calcium respectively. MFI-supported molybdenum and rhenium catalysts were prepared. The activities of the catalysts were compared for the aromatization reaction of methane. Higher activity values were attained with the catalysts supported on HZSM-5. Aromatics were also observed with the catalysts supported on CaZSM-5, despite their deficiency in acid sites. Highly dispersed rhenium is expected to be formed with the use of the inorganic carrier in calcium form. On the other hand, lower reaction rates were observed with rhenium supported on CaZSM-5, in spite of the improved dispersion of the active rhenium species on this catalyst. This was interpreted in terms of the critical role of the acid sites in the conversion of methane to aromatics, compared to the improved dispersion of the active metal.

Original languageEnglish
Pages (from-to)123-128
Number of pages6
JournalCatalysis Letters
Volume118
Issue number1-2
DOIs
Publication statusPublished - Oct 2007
Externally publishedYes

Funding

Acknowledgment A. Sarıog˘lan acknowledges the funding provided by TUBITAK MRC via the World Bank Program, which covered all his expenses during his stay at Institut de Recherches sur la Catalyse-France.

FundersFunder number
Institut de Recherches sur la Catalyse-France
TUBITAK MRC
World Bank Group

    Keywords

    • Acidity
    • Aromatics
    • Methane
    • MFI
    • Molybdenum
    • Rhenium

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