Ni Phosphide Catalysts on Al2O3-Zeolite Prepared by Phosphidation for Methyl Palmitate Hydroconversion | Sciact - CRIS-система Института катализа

Ni Phosphide Catalysts on Al2O3-Zeolite Prepared by Phosphidation for Methyl Palmitate Hydroconversion Научная публикация

Журнал

Journal of Chemical Technology and Biotechnology
ISSN: 0268-2575

Вых. Данные

Год: 2024, DOI: 10.1002/jctb.7766

Ключевые слова

bio-jet; cracking; hydrodeoxygenation; isomerization; nickel phosphide catalysts; zeolite

Авторы

Shamanaev Ivan V ¹ , Vlasova Evgenia N ¹ , Tsaplin Dmitriy E ^2,3 , Danilova Irina G ¹ , Pakharukova Vera P ¹ , Gerasimov Evgeny Yu ¹ , Yakovlev Ilya V ¹ , Fedorov Alexey Yu ¹ , Maximov Anton L ³ , Bukhtiyarova Galina A ¹

Организации

1	Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
2	Faculty of Chemistry, Lomonosov Moscow State University, Moscow, Russia
3	Topchiev Institute of Petrochemical Synthesis RAS, Moscow, Russia

Информация о финансировании (1)

Российский научный фонд

22-13-00371

BACKGROUND One-stage hydroconversion of fatty-acid based feedstocks is a promising way to obtain high-quality fuels. This process is based on hydrodeoxygenation, isomerization and hydrocracking reactions. In this work, Ni2P/Al2O3-zeolite catalysts were synthesized and tested in hydroconversion of a model compound – methyl palmitate. RESULTS Ni2P catalysts were prepared by in situ phosphidation of metallic Ni/Al2O3-zeolite precursors by PPh3. Mixtures of zeolite (30 wt%) and boehmite were peptized and extruded to obtain the support granules. SAPO-11, ZSM-5, ZSM-22, ZSM-23 and ZSM-12 were used as a zeolite component. The catalysts and supports were characterized by a range of physicochemical methods: chemical analysis (ICP-AES), low-temperature N2 adsorption, H2-temperature programmed reduction, NH3-temperature programmed desorption, Fourier transform infrared spectroscopy of adsorbed CO, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and 27Al and 31P magic angle spinning nuclear magnetic resonance. The catalysts were studied in methyl palmitate hydroconversion (one-stage hydrodeoxygenation-isomerization-hydrocracking) in a continuous-flow fixed bed reactor at 290–340 °C, 2 MPa, H2/feed = 600 Ncm3/cm3 and LHSV = 5.3 h−1. SAPO-11 containing sample showed high selectivity to C15 and C16 iso-alkanes (63%, at 340 °C), and all ZSM-containing samples showed high selectivity to cracked C5–C9 products (55–100%, at 340 °C) with varying amounts of iso-alkanes (31–57%, at 340 °C). CONCLUSION The results show that by choosing the zeolite component of the catalyst it is possible to finely tune product quality in the range from low-temperature diesel fuel to jet fuel or gasoline.

Shamanaev I.V. , Vlasova E.N. , Tsaplin D.E. , Danilova I.G. , Pakharukova V.P. , Gerasimov E.Y. , Yakovlev I.V. , Fedorov A.Y. , Maximov A.L. , Bukhtiyarova G.A.
Ni Phosphide Catalysts on Al2O3-Zeolite Prepared by Phosphidation for Methyl Palmitate Hydroconversion
Journal of Chemical Technology and Biotechnology. 2024. DOI: 10.1002/jctb.7766 WOS Scopus CAPlus OpenAlex

Поступила в редакцию:	7 июл. 2024 г.
Опубликована online:	10 окт. 2024 г.

Web of science:	WOS:001336568600001
Scopus:	2-s2.0-85205839294
Chemical Abstracts:	2024:2195718
OpenAlex:	W4403343206

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