Research output: Contribution to journal › Article › peer-review
Bifunctional MoS2/Al2O3-Zeolite Catalysts in the Hydroprocessing of Methyl Palmitate. / Vlasova, Evgeniya; Zhao, Yiheng; Danilova, Irina et al.
In: International Journal of Molecular Sciences, Vol. 24, No. 19, 14863, 03.10.2023.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Bifunctional MoS2/Al2O3-Zeolite Catalysts in the Hydroprocessing of Methyl Palmitate
AU - Vlasova, Evgeniya
AU - Zhao, Yiheng
AU - Danilova, Irina
AU - Aleksandrov, Pavel
AU - Shamanaev, Ivan
AU - Nuzhdin, Alexey
AU - Suprun, Evgeniy
AU - Pakharukova, Vera
AU - Tsaplin, Dmitriy
AU - Maksimov, Anton
AU - Bukhtiyarova, Galina
N1 - This research was supported by the Russian Science Foundation, grant number 22-13-00371. Публикация для корректировки.
PY - 2023/10/3
Y1 - 2023/10/3
N2 - 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.
AB - 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.
KW - Brønsted acid sites
KW - MoS2 catalyst
KW - biojet fuel
KW - hydrodeoxygenation
KW - hydroisomerization
KW - methyl palmitate
KW - zeolite
KW - Zeolites/chemistry
KW - Silicon Dioxide
KW - Alkanes/chemistry
KW - Molybdenum
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85174700569&origin=inward&txGid=c2889d43e25dca97201003b7d76522a0
UR - https://www.mendeley.com/catalogue/7fa10a37-12d1-3156-a76e-e799ec09496a/
U2 - 10.3390/ijms241914863
DO - 10.3390/ijms241914863
M3 - Article
C2 - 37834311
VL - 24
JO - International Journal of Molecular Sciences
JF - International Journal of Molecular Sciences
SN - 1661-6596
IS - 19
M1 - 14863
ER -
ID: 59284280