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Issue 14, 2016
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Adsorption and reaction properties of SnBEA, ZrBEA and H-BEA for the formation of p-xylene from DMF and ethylene

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Abstract

The adsorption and reaction properties of H-BEA, SnBEA, ZrBEA and siliceous BEA were examined to understand the reaction of 2,5-dimethylfuran (DMF) with ethylene to form p-xylene. Temperature-programmed desorption (TPD) of diethyl ether, DMF, 2,5-hexanedione and p-xylene on each of the zeolites demonstrated that the Brønsted sites in H-BEA are more reactive than the Lewis sites in SnBEA and ZrBEA and tend to promote the oligomerization of DMF and 2,5-hexanedione, even at 295 K; however, the adsorbed 2,5-hexanedione is converted to DMF at both Lewis- and Brønsted-acid sites. H-BEA, SnBEA and ZrBEA all catalyzed the reaction to p-xylene with high selectivity in a continuous-flow reactor, with all three catalysts showing rates that were first order in both DMF and ethylene. H-BEA was found to deactivate rapidly due to coking, while ZrBEA and SnBEA were both stable. The implications of these results for practical applications are discussed.

Graphical abstract: Adsorption and reaction properties of SnBEA, ZrBEA and H-BEA for the formation of p-xylene from DMF and ethylene

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Publication details

The article was received on 04 Mar 2016, accepted on 12 Apr 2016 and first published on 13 Apr 2016


Article type: Paper
DOI: 10.1039/C6CY00501B
Author version available: Download Author version (PDF)
Citation: Catal. Sci. Technol., 2016,6, 5729-5736
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    Adsorption and reaction properties of SnBEA, ZrBEA and H-BEA for the formation of p-xylene from DMF and ethylene

    J. Yu, S. Zhu, P. J. Dauenhauer, H. J. Cho, W. Fan and R. J. Gorte, Catal. Sci. Technol., 2016, 6, 5729
    DOI: 10.1039/C6CY00501B

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