Effect of Fe-Mo promoters on HZSM-5 zeolitecatalyst for 1-hexene aromatization

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dc.contributor.authorKey, David
dc.contributor.authorMdleleni, Masikana
dc.date.accessioned2019-10-18T10:31:40Z
dc.date.available2019-10-18T10:31:40Z
dc.date.issued2018-11-15
dc.description.abstractThe promotional effect of Fe-Mo species introduced into HZSM-5 (Zeolyst Int.,SiO2/Al2O3 30) zeolite catalyst by the wetness impregnation method for the 1-hexene aromatiza-tion was investigated. The structure and catalytic performance for the aromatization of 1-hexeneover xFeyMo-ZSM-5 catalysts in comparison with unmodified HZSM-5 catalysts were studied.The xFeyMo-ZSM-5 catalysts contain fixed loading (5 wt%) and variable Fe/Mo ratio. The cata-lysts were characterized by BET, ICP-AES, HRSEM-EDS, HRTEM, XRD, FTIR, H2-TPR,NH3-TPD, and pyridine DRIFT spectroscopy. The characterization data confirmed the existenceof Fe and Mo species in the zeolite matrix. With Fe and Mo species implementation to HZSM-5zeolite, the amount of the acid sites decreased, but the selectivities to C9+aromatics increased.The catalyst evaluation was performed at 350°C for 6 h on-stream at atmospheric pressure usinga fixed-bed quartz tube reactor. The selectivity to products of different carbon number was affectedby the Fe/Mo ratio within the zeolite. It was found the product distribution of grouped fractions ofC1–C17+from the liquid product. The results indicate that the optimum ratio of Fe/Mo is 1–1.5.The highest selectivity for gasoline and distillate ranges was obtained for the 2.5wt%Fe2.5wt%Mo- and 3wt%Fe2wt%Mo-ZSM-5 samples, which was higher than that for parent HZSM-5 cata-lyst.en_US
dc.description.sponsorshipPetroSAen_US
dc.identifier.citationJournal of Saudi Chemical Society Volume 23, Issue 5, July 2019, Pages 612-626en_US
dc.identifier.issn1319-6103
dc.identifier.urihttp://hdl.handle.net/10566/5050
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.subjectHZSM-5en_US
dc.subjectFe-Mo speciesen_US
dc.subjectOlefinsen_US
dc.subjectAromatizationen_US
dc.subjectLiquid Fuelsen_US
dc.titleEffect of Fe-Mo promoters on HZSM-5 zeolitecatalyst for 1-hexene aromatizationen_US
dc.typeArticleen_US

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