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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Vydáno v:Case studies in chemical and environmental engineering Ročník 8; s. 100427
Hlavní autoři: Rasrendra, Carolus B., Maulidanti, Ellen G., Darlismawantyani, Sarah E.P., Nurdini, Nadya, Rustyawan, Wawan, Subagjo, Kadja, Grandprix T.M.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 01.12.2023
Elsevier
Témata:
Alumina
HY zeolites
Hydrodesulfurization
Nickel molybdenum catalyst
HY zeolites
Alumina
Nickel molybdenum catalyst
Hydrodesulfurization
ISSN:2666-0164, 2666-0164
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Shrnutí: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