Metal oxide–zeolite composites in transformation of methanol to hydrocarbons: do iron oxide and nickel oxide matter?

Metal oxide–zeolite composites in transformation of methanol to hydrocarbons: do iron oxide and nickel oxide matter? Научная публикация

Журнал

RSC Advances
ISSN: 2046-2069

Вых. Данные

Год: 2016, Том: 6, Номер: 79, Страницы: 75166-75177 Страниц : 12 DOI: 10.1039/c6ra19471k

Авторы

Mann Joshua ¹ , Doluda Valentin Yu ² , Leonard Clara ¹ , Losovyj Yaroslav B. ¹ , Morgan David Gene ¹ , Bukalov Sergey S. ³ , Shifrina Zinaida ³ , Stein Barry D. ⁴ , Cherkasov Nikolay ⁵ , Rebrov Evgeny V. ^2,5 , Harms Zachary D. ¹ , Pink Maren ¹ , Sulman Esther M. ² , Bronstein Lyudmila ^1,3,6

Организации

1	Indiana University, Department of Chemistry, Bloomington, IN 47405, USA
2	Tver State Technical University, Department of Biotechnology and Chemistry, 22 A. Nikitina St, Tver, Russia
3	A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St., Moscow, Russia
4	Indiana University, Department of Biology, Bloomington, IN 47405, USA
5	School of Engineering, University of Warwick, Coventry, UK
6	King Abdulaziz University, Faculty of Science, Department of Physics, Jeddah, Saudi Arabia

The methanol-to-hydrocarbon (MTH) reaction has received considerable attention as utilizing renewable sources of both value-added chemicals and fuels becomes a number one priority for society. Here, for the first time we report the development of hierarchical zeolites (ZSM-5) containing both iron oxide and nickel oxide nanoparticles. By modifying the iron oxide (magnetite, Fe3O4) amounts, we are able to control the catalyst activity and the product distribution in the MTH process. At the medium Fe3O4 loading, the major fraction is composed of C9–C11 hydrocarbons (gasoline fraction). At the higher Fe3O4 loading, C1–C4 hydrocarbons prevail in the reaction mixture, while at the lowest magnetite loading the major component is the C5–C8 hydrocarbons. Addition of Ni species to Fe3O4–ZSM-5 leads to the formation of mixed Ni oxides (NiO/Ni2O3) positioned either on top of or next to Fe3O4 nanoparticles. This modification allowed us to significantly improve the catalyst stability due to diminishing coke formation and disordering of the coke formed. The incorporation of Ni oxide species also leads to a higher catalyst activity (up to 9.3 g(methanol)/(g(ZSM-5) × h)) and an improved selectivity (11.3% of the C5–C8 hydrocarbons and 23.6% of the C9–C11 hydrocarbons), making these zeolites highly promising for industrial applications.

Mann J. , Doluda V.Y. , Leonard C. , Losovyj Y.B. , Morgan D.G. , Bukalov S.S. , Shifrina Z. , Stein B.D. , Cherkasov N. , Rebrov E.V. , Harms Z.D. , Pink M. , Sulman E.M. , Bronstein L.
Metal oxide–zeolite composites in transformation of methanol to hydrocarbons: do iron oxide and nickel oxide matter?
RSC Advances. 2016. V.6. N79. P.75166-75177. DOI: 10.1039/c6ra19471k Scopus OpenAlex

Scopus:	2-s2.0-84982161413
OpenAlex:	W2475513812

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