Dehydrocyclization of n-Paraffins Over Te-NaX Zeolite Catalysts Научная публикация
| Конференция |
7th International Congress on Catalysis 30 июн. - 4 июл. 1980 , Tokyo |
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| Сборник | New Horizons in Catalysis: Proceedings of the 7th International Congress on Catalysis, Tokyo, 30 June-4 July 1980 Сборник, Elsevier North-Holland. 1981. 1537 c. ISBN 9780444997401. |
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| Журнал |
Studies in Surface Science and Catalysis
ISSN: 0167-2991 |
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| Вых. Данные | Год: 1981, Том: 7, Страницы: 708-723 Страниц : 16 DOI: 10.1016/S0167-2991(09)60310-4 | ||||||
| Авторы |
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Реферат:
Both 14C and deuterium tracers have been used to establish the reaction pathways and rate limiting steps in the formation of aromatics from n-paraffins and cycloparaffins over a shape-selective tellurium zeolite catalyst. The catalyst functions mainly as a dehydrogenation agent with linear mono-olefins and higher olefins being exclusive gas phase intermediates. Cyclization is likely a non-catalytic step involving ring closure of a linear hexatriene unit, followed by catalytic dehydrogenation of the cyclohexadiene nucleus to an aromatic. Alkyl cyclohexanes definitely are not intermediates in the aromatization of n-paraffins, although by themselves they can be dehydrogenated to aromatics in high yields over this catalyst. The absence of extensive H-D scrambling and the presence of a large primary kinetic isotope effect (kH/kD >2 at 400°C) when deuterated hydrocarbons are reacted simultaneously with similar undeuterated molecules strongly suggests that the slow step in the reaction is cleavage of one or more C-H bonds.
Библиографическая ссылка:
Price G.L.
, Ismagilov Z.R.
, Hightower J.W.
Dehydrocyclization of n-Paraffins Over Te-NaX Zeolite Catalysts
В сборнике New Horizons in Catalysis: Proceedings of the 7th International Congress on Catalysis, Tokyo, 30 June-4 July 1980. – Elsevier North-Holland., 1981. – C.708-723. – ISBN 9780444997401. DOI: 10.1016/S0167-2991(09)60310-4 Scopus РИНЦ CAPlusCA OpenAlex Sciact
Dehydrocyclization of n-Paraffins Over Te-NaX Zeolite Catalysts
В сборнике New Horizons in Catalysis: Proceedings of the 7th International Congress on Catalysis, Tokyo, 30 June-4 July 1980. – Elsevier North-Holland., 1981. – C.708-723. – ISBN 9780444997401. DOI: 10.1016/S0167-2991(09)60310-4 Scopus РИНЦ CAPlusCA OpenAlex Sciact
Даты:
| Опубликована в печати: | 1 янв. 1981 г. |
| Опубликована online: | 6 янв. 2009 г. |
Идентификаторы БД:
| Scopus: | 2-s2.0-77956958078 |
| РИНЦ: | 30952308 |
| Chemical Abstracts: | 1981:586374 |
| Chemical Abstracts (print): | 95:186374 |
| OpenAlex: | W165778777 |
| Sciact: | 14511 |