Coaromatization of Methane with Propane on Mo-Containing Zeolite H-BEA: A Solid-State NMR and GC-MS Study

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• 作者：Mikhail V. Luzgin ; Alexander V. Toktarev ; Valentin N. Parmon ; Alexander G. Stepanov
• 刊名：Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：November 7, 2013
• 年：2013
• 卷：117
• 期：44
• 页码：22867-22873
• 全文大小：311K
• 年卷期：v.117,no.44(November 7, 2013)
• ISSN：1932-7455

文摘

The joint conversion of methane and propane on Mo-containing zeolite H-BEA has been studied with solid-state NMR spectroscopy and GC-MS analysis. The involvement of methane-¹³C in the reaction of propane aromatization to form benzene and toluene as the products has been demonstrated by ¹³C magic angle spinning (MAS) NMR. At the same time, GC-MS analysis has revealed that some portion of aromatic products contains carbon atoms originated from the initial methane-¹³C. The main pathway of the methane involvement in aromatics consists of the alkylation of aromatic molecules, which are produced from propane, by methane. Mo-n-propyl species have been detected as the probable intermediates of propane aromatization.