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Issue 21, 2016
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Conversion of methanol to olefins over Al-rich ZSM-5 modified with alkaline earth metal oxides

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Abstract

Aluminum-rich H-ZSM-5 zeolites modified with alkaline earth metal oxides of Mg, Ca and Ba were applied in the conversion of methanol to olefins (MTO). The pores of the parent H-ZSM-5 zeolite were blocked with a surfactant prior to metal oxide modification. The resulting Mg-ZSM-5, Ca-ZSM-5 and Ba-ZSM-5 exhibited similar structural and morphological patterns to the parent H-ZSM-5. The addition of these alkaline metal oxides affected the acidity of the ZSM-5-based catalysts. Mg-ZSM-5 was found to be the most stable in the MTO reaction, maintaining a conversion of 100% for over 8 h and having the highest selectivity of ca. 46% to propylene due to the presence of weak Brønsted acidity.

Graphical abstract: Conversion of methanol to olefins over Al-rich ZSM-5 modified with alkaline earth metal oxides

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Publication details

The article was received on 20 Apr 2016, accepted on 08 Sep 2016 and first published on 09 Sep 2016


Article type: Paper
DOI: 10.1039/C6CY00867D
Citation: Catal. Sci. Technol., 2016,6, 7852-7859
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    Conversion of methanol to olefins over Al-rich ZSM-5 modified with alkaline earth metal oxides

    I. A. Bakare, O. Muraza, M. Yoshioka, Z. H. Yamani and T. Yokoi, Catal. Sci. Technol., 2016, 6, 7852
    DOI: 10.1039/C6CY00867D

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