Hydrocracking of Vacuum Gas Oil over NiMo/zeolite-Al2O3: Influence of Zeolite Properties
Научная публикация
| Общая информация |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Fuel
ISSN: 0016-2361
, E-ISSN: 1873-7153
|
| Вых. Данные |
Год: 2019,
Том: 237,
Страницы: 178-190
Страниц
: 13
DOI:
10.1016/j.fuel.2018.10.012
|
| Ключевые слова |
Catalyst, Hydrocracking, Micro-mesoporous zeolite Y, Recrystallization, Vacuum gas oil, Zeolite beta |
| Авторы |
Dik P.P.
1
,
Danilova I.G.
1
,
Golubev I.S.
1
,
Kazakov M.O.
1
,
Nadeina K.A.
1
,
Budukva S.V.
1
,
Pereyma V.Yu.
1
,
Klimov O.V.
1
,
Prosvirin I.P.
1
,
Gerasimov E.Yu.
1
,
Bok T.O.
3
,
Dobryakova I.V.
2
,
Knyazeva E.E.
2,3
,
Ivanova I.I.
2,3
,
Noskov A.S.
1
|
| Организации |
| 1 |
Boreskov Institute of Catalysis SB RAS, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
|
| 2 |
Department of Chemistry, Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
|
| 3 |
A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninskiy Prospect 29, 119991 Moscow, Russia
|
|
Информация о финансировании (2)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0010
|
|
2
|
Федеральное агентство научных организаций России
|
|
Hydrocracking of vacuum gas oil has been studied over NiMo/zeolite-Al2O3 catalysts. Three different zeolites have been used for catalysts preparation: zeolites Beta (BEA) and Y (FAU) having small crystal size and zeolite Y modified by recrystallization (RFAU). HRTEM, low-temperature N2 adsorption, FTIR of adsorbed CO and TPD-NH3 showed that zeolites had different crystal sizes, mesopore volume, strength and concentration of acid sites. Sulfide active component particles have been revealed to be similar in all catalysts by HRTEM and XPS. NiMo/BEA catalyst having zeolite with the smallest average particle size and the highest concentration of Brønsted acid sites (BAS) demonstrated the highest hydrocracking activity. Selectivity to middle distillates decreased in the following order: NiMo/FAU > NiMo/RFAU > NiMo/BEA. This effect is accounted for by optimal zeolite acidity and improved availability of the acid sites for bulky molecules of the heavy feedstock.