Bifunctional MoS2/Al2O3-Zeolite Catalysts in the Hydroprocessing of Methyl Palmitate | Sciact - CRIS-system of Boreskov Institute of Catalysis

Bifunctional MoS2/Al2O3-Zeolite Catalysts in the Hydroprocessing of Methyl Palmitate Full article

Journal

International Journal of Molecular Sciences
ISSN: 1422-0067 , E-ISSN: 1661-6596

Output data

Year: 2023, Volume: 24, Number: 19, Article number : 14863, Pages count : 21 DOI: 10.3390/ijms241914863

Tags

biojet fuel; MoS2 catalyst; zeolite; Brønsted acid sites; hydrodeoxygenation; hydroisomerization; methyl palmitate

Authors

Vlasova Evgeniya ¹ , Zhao Yiheng ² , Danilova Irina ¹ , Aleksandrov Pavel ¹ , Shamanaev Ivan ¹ , Nuzhdin Alexey ¹ , Suprun Evgeniy ¹ , Pakharukova Vera ¹ , Tsaplin Dmitriy ^3,4 , Maksimov Anton ^3,4 , Bukhtiyarova Galina ¹

Affiliations

1	Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia
2	Faculty of Natural Sciences, Novosibirsk National Research University, 630090 Novosibirsk, Russia
3	Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
4	Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia

Funding (1)

Russian Science Foundation

22-13-00371

A series of bifunctional catalysts, MoS2/Al2O3 (70 wt.%), zeolite (30 wt.%) (zeolite—ZSM-5, ZSM-12, and ZSM-22), and silica aluminophosphate SAPO-11, were synthesized for hydroconversion of methyl palmitate (10 wt.% in dodecane) in a trickle-bed reactor. Mo loading was about 7 wt.%. Catalysts and supports were characterized by different physical-chemical methods (HRTEM-EDX, SEM-EDX, XRD, N2 physisorption, and FTIR spectroscopy). Hydroprocessing was performed at a temperature of 250–350 °C, hydrogen pressure of 3.0–5.0 MPa, liquid hourly space velocity (LHSV) of 36 h−1, and an H2/feed ratio of 600 Nm3/m3. Complete conversion of oxygen-containing compounds was achieved at 310 °C in the presence of MoS2/Al2O3-zeolite catalysts; the selectivity for the conversion of methyl palmitate via the ‘direct’ hydrodeoxygenation (HDO) route was over 85%. The yield of iso-alkanes gradually increases in order: MoS2/Al2O3 < MoS2/Al2O3-ZSM-12 < MoS2/Al2O3-ZSM-5 < MoS2/Al2O3-SAPO-11 < MoS2/Al2O3-ZSM-22. The sample MoS2/Al2O3-ZSM-22 demonstrated the highest yield of iso-alkanes (40%). The hydroisomerization activity of the catalysts was in good correlation with the concentration of Brønsted acid sites in the synthesized supports.

Vlasova E. , Zhao Y. , Danilova I. , Aleksandrov P. , Shamanaev I. , Nuzhdin A. , Suprun E. , Pakharukova V. , Tsaplin D. , Maksimov A. , Bukhtiyarova G.
Bifunctional MoS2/Al2O3-Zeolite Catalysts in the Hydroprocessing of Methyl Palmitate
International Journal of Molecular Sciences. 2023. V.24. N19. 14863 :1-21. DOI: 10.3390/ijms241914863 WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	Sep 15, 2023
Accepted:	Sep 28, 2023
Published print:	Oct 3, 2023
Published online:	Oct 3, 2023

Web of science:	WOS:001084058700001
Scopus:	2-s2.0-85174700569
Elibrary:	55169883
Chemical Abstracts:	2023:2171091
PMID:	37834311
OpenAlex:	W4387302548

DB	Citing
OpenAlex	3
Scopus	3
Web of science	2
Elibrary	2