The Effect of Si/Al Ratio of Zeolite Y in NiW Catalyst for Second Stage Hydrocracking Научная публикация
| Журнал |
Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308 |
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| Вых. Данные | Год: 2021, Том: 378, Страницы: 65-74 Страниц : 10 DOI: 10.1016/j.cattod.2021.01.014 | ||||
| Ключевые слова | Hydrocracking; Unconverted oil; Squalane hydrocracking; Middle distillates; Zeolite; Amorphous silica-alumina | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | 0239-2021-0006 |
Реферат:
The effect of Si/Al ratio of zeolite Y on the performance of NiW catalysts for second stage hydrocracking was studied. The zeolites were characterized by IR spectroscopy of adsorbed pyridine, low-temperature N2 adsorption, and temperature-programmed desorption of ammonia. The observed decrease of Brønsted and Lewis acid sites concentration relates to the increase of Si/Al ratio in zeolites. According to HRTEM and XPS, sulfide component of catalysts differs in morphology, NiWS phase content and tungsten sulfidation degree. The catalysts were tested in hydrocracking of model (squalane) and real feedstock (unconverted oil (UCO) from two-stage industrial hydrocracker) at different temperatures. The increase of Si/Al ratio in zeolites was found to result in the decrease of catalytic activity and the increase of selectivity to middle distillates. However, similar selectivity of 52 and 53% at the 50% of UCO conversion was observed for catalysts containing zeolites with Si/Al ratio 24 and 37 respectively. This can be attributed mainly to the differences in the textural properties of the zeolites. The catalyst based on amorphous silica-alumina (without zeolites) was found to have a higher selectivity to middle distillates and lower activity as compared to zeolite-based catalysts.
Библиографическая ссылка:
Golubev I.S.
, Dik P.P.
, Kazakov M.O.
, Pereyma V.Y.
, Klimov O.V.
, Smirnova M.Y.
, Prosvirin I.P.
, Gerasimov E.Y.
, Kondrashev D.O.
, Golovachev V.A.
, Vedernikov O.S.
, Kleimenov A.V.
, Noskov A.S.
The Effect of Si/Al Ratio of Zeolite Y in NiW Catalyst for Second Stage Hydrocracking
Catalysis Today. 2021. V.378. P.65-74. DOI: 10.1016/j.cattod.2021.01.014 WOS Scopus РИНЦ CAPlus OpenAlex
The Effect of Si/Al Ratio of Zeolite Y in NiW Catalyst for Second Stage Hydrocracking
Catalysis Today. 2021. V.378. P.65-74. DOI: 10.1016/j.cattod.2021.01.014 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 19 сент. 2020 г. |
| Принята к публикации: | 22 янв. 2021 г. |
| Опубликована online: | 3 февр. 2021 г. |
| Опубликована в печати: | 15 окт. 2021 г. |
Идентификаторы БД:
| Web of science: | WOS:000687319200008 |
| Scopus: | 2-s2.0-85101093760 |
| РИНЦ: | 46749114 |
| Chemical Abstracts: | 2021:450548 |
| OpenAlex: | W3128444150 |