Bifunctional NiMo/HY-γ-Al2O3 catalysts for an effective production of ultra-low sulfur diesel

A series of hydrodesulfurization (HDS) of NiMo supported on HY zeolites and γ-Al2O3 (NiMo/HY-γ-Al2O3) have been prepared. The appropriate amount of HY zeolites and HNO3 were necessary to optimize the textural properties and acidity of the catalysts, allowing deep hydrodesulfurization. Moreover, the...

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Bibliographic Details
Published in:	Case studies in chemical and environmental engineering Vol. 8; p. 100427
Main Authors:	Rasrendra, Carolus B., Maulidanti, Ellen G., Darlismawantyani, Sarah E.P., Nurdini, Nadya, Rustyawan, Wawan, Subagjo, Kadja, Grandprix T.M.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01.12.2023 Elsevier
Subjects:	Alumina HY zeolites Hydrodesulfurization Nickel molybdenum catalyst HY zeolites Alumina Nickel molybdenum catalyst Hydrodesulfurization
ISSN:	2666-0164, 2666-0164
Online Access:	Get full text
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Summary:	A series of hydrodesulfurization (HDS) of NiMo supported on HY zeolites and γ-Al2O3 (NiMo/HY-γ-Al2O3) have been prepared. The appropriate amount of HY zeolites and HNO3 were necessary to optimize the textural properties and acidity of the catalysts, allowing deep hydrodesulfurization. Moreover, the best catalyst could significantly reduce the concentrations of dibenzothiophene (DBT) and 4,6-dimethyl dibenzothiophene (4,6-DMDBT) to 8.20 ppm (from 2000 ppm) and 5.28 ppm (from 260 ppm), respectively. It could also accelerate the kinetics as indicated by the enhanced rate constants of DBT (∼3–4 times) and 4,6-DMDBT (∼1.5–2.5 times) hydrodesulfurization compared to catalyst without HY zeolites. [Display omitted]
ISSN:	2666-0164 2666-0164
DOI:	10.1016/j.cscee.2023.100427