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- W3026172887 endingPage "11986" @default.
- W3026172887 startingPage "11971" @default.
- W3026172887 abstract "A systematic change of HZSM-5 (HZ5) as a catalyst of the methanol to aromatics (MTA) reaction was undertaken by employing a fixed-bed tubular-type reactor under ambient pressure, applying a weight hourly space velocity (WHSV) of 2 h–1 at 375 °C, as the first report on the application of low-Si/Al-ratio alkaline-[Mo,Na]-HZSM-5 in the MTA process. To characterize the surface and textural properties of the catalysts, powder X-ray diffraction (PXRD), nitrogen adsorption/desorption, temperature-programmed desorption of ammonia (NH3-TPD), pyridine-infrared spectroscopy (Py-IR), thermogravimetric analysis (TGA), and energy-dispersive X-ray (EDX) methods were employed. Gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) measurements demonstrated a selectivity of up to 86 wt % (65.7 wt % for benzene, toluene, and xylene (BTX)) over 2[Mo]HZ5. NH3-TPD and Py-IR results indicated a sensible decrease of strong acid sites on the impregnated samples, while the surface analyses revealed the highest Lewis acid sites (LAS) together with the largest mesopore surface area for 2[Mo]alk-HZ5, supporting the migration of Mo species to the bulk of the catalysts. Mo impregnation had a minor effect on the observed coke formation in the promoted catalyst." @default.
- W3026172887 created "2020-05-29" @default.
- W3026172887 creator A5005316230 @default.
- W3026172887 creator A5011269712 @default.
- W3026172887 creator A5033477046 @default.
- W3026172887 creator A5052622111 @default.
- W3026172887 date "2020-05-19" @default.
- W3026172887 modified "2023-10-10" @default.
- W3026172887 title "High-Impact Promotional Effect of Mo Impregnation on Aluminum-Rich and Alkali-Treated Hierarchical Zeolite Catalysts on Methanol Aromatization" @default.
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- W3026172887 doi "https://doi.org/10.1021/acsomega.9b04407" @default.
- W3026172887 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7271033" @default.
- W3026172887 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32548376" @default.
- W3026172887 hasPublicationYear "2020" @default.
- W3026172887 type Work @default.