Silica-Alumina Based Nickel-Molybdenum Catalysts for Vacuum Gas Oil Hydrocracking Aimed at a Higher Diesel Fraction Yield Full article
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Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2014, Volume: 6, Number: 3, Pages: 231-238 Pages count : 8 DOI: 10.1134/S2070050414030076 | ||
| Tags | Amorphous silica-alumina, Catalyst, Diesel fraction, Hydrocracking, Vacuum gas oil | ||
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Abstract:
Nickel-molybdenum hydrocracking catalysts based on amorphous silica-aluminas (ASAs) with Si/Al = 0.3–1.5 have been prepared using chemicals and methods available for catalyst plants. The acidic properties of the ASA surface have been investigated by IR spectroscopy of adsorbed CO, and it has been demonstrated that the Si/Al ratio has an effect on the concentration and strength of Brønsted and Lewis acid sites in the ASA. The catalysts have been characterized by low-temperature nitrogen adsorption and transmission electron microscopy, and it was found that the Si/Al ratio in the ASA has a considerable effect on the textural properties of the catalysts and only a slight effect on the particle size of the sulfide active component. The catalysts have been tested in vacuum gas oil hydrocracking in a laboratory-scale high-pressure flow reactor under typical industrial hydrocracking conditions. The highest diesel fraction yield (>60 wt % at 400°C) has been obtained with the catalyst based on the Si/Al = 0.9 ASA, which has the strongest Brønsted acid sites. With the catalysts based on the Si/Al = 0.3 and 1.5 ASAs, the diesel fraction yield is much lower. This may be due to the lower concentration and strength of acid sites in these catalysts and their smaller specific surface area. The NiMo catalyst based on Si/Al ≈ 0.9 ASA is recommended for industrial use in refineries aimed at obtaining the maximum possible yield of low-sulfur, high-cetane, diesel fuels.
Cite:
Dik P.P.
, Klimov O.V.
, Budukva S.V.
, Leonova K.A.
, Pereyma V.Y.
, Gerasimov E.Y.
, Danilova I.G.
, Noskov A.S.
Silica-Alumina Based Nickel-Molybdenum Catalysts for Vacuum Gas Oil Hydrocracking Aimed at a Higher Diesel Fraction Yield
Catalysis in Industry. 2014. V.6. N3. P.231-238. DOI: 10.1134/S2070050414030076 WOS Scopus РИНЦ OpenAlex
Silica-Alumina Based Nickel-Molybdenum Catalysts for Vacuum Gas Oil Hydrocracking Aimed at a Higher Diesel Fraction Yield
Catalysis in Industry. 2014. V.6. N3. P.231-238. DOI: 10.1134/S2070050414030076 WOS Scopus РИНЦ OpenAlex
Original:
Дик П.П.
, Климов О.В.
, Будуква С.В.
, Леонова К.А.
, Перейма В.Ю.
, Герасимов Е.Ю.
, Данилова И.Г.
, Носков А.С.
Никель-молдибденовые алюмосиликатные катализаторы гидрокрекинга вакуумного газойля, ориентированные на повышенный выход дизельной фракции
Катализ в промышленности. 2014. №3. С.49-58. РИНЦ ANCAN OpenAlex
Никель-молдибденовые алюмосиликатные катализаторы гидрокрекинга вакуумного газойля, ориентированные на повышенный выход дизельной фракции
Катализ в промышленности. 2014. №3. С.49-58. РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Dec 29, 2013 |
| Published print: | Jul 1, 2014 |
| Published online: | Sep 25, 2014 |
Identifiers:
| Web of science: | WOS:000433671600011 |
| Scopus: | 2-s2.0-84920261687 |
| Elibrary: | 24027901 |
| OpenAlex: | W1984739223 |