Effect of the Zeolite Modulus of Pt/MOR/Al2O3 Catalysts on the n-Heptane Isomerization Reaction
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Catalysis in Industry
ISSN: 2070-0504
, E-ISSN: 2070-0555
|
| Вых. Данные |
Год: 2016,
Том: 8,
Номер: 2,
Страницы: 121-127
Страниц
: 7
DOI:
10.1134/S2070050416020112
|
| Ключевые слова |
mordenite, n-heptane isomerization, platinum catalysts |
| Авторы |
Smolikov M.D.
1,2
,
Shkurenok V.A.
1
,
Yablokova S.S.
1
,
Kirʹyanov D.I.
1
,
Doronin V.P.
1
,
Sorokina T.P.
1
,
Bikmetova L.I.
1
,
Gulyaeva T.I.
1
,
Paukshtis E.A.
3
,
Belyi A.S.
1,2
|
| Организации |
| 1 |
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Omsk, 644040 Russia
|
| 2 |
Omsk State Technical University, Omsk, 644050 Russia
|
| 3 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
|
The effect of the mordenite acidic modulus (SiO2/Al2O3, 20 and 30) of Pt/MOR/Al2O3 catalysts on the heptane isomerization reaction is investigated. The content of zeolite in the catalysts is varied from 10 to 50 wt %, with platinum applied to the samples from solutions of different precursors: H2PtCl6 and [Pt(NH3)4]Cl2. It is established via the TPD of ammonia and FTIR spectroscopy (the adsorption of NH3 and СО) that the total acidity of zeolite falls as the modulus grows: the number of Brønsted (BAC) and Lewis (LAC) acidic sites is reduced, accompanied by an increase in the strength of their acidity. The catalysts are tested in the n-heptane isomerization reaction. It is shown that the selectivity of n-heptane isomerization falls substantially when the acidic mordenite modulus is increased from 20 to 30.