The Influence of Phosphorus and Mo Loading on the MoS2 Phase Morphology and Performance of Sulfided Mo/Al2O3 Catalysts in HDO of Rapeseed Oil
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
WSEAS Transactions on Environment and Development
ISSN: 1790-5079
, E-ISSN: 2224-3496
|
| Output data |
Year: 2018,
Volume: 14,
Pages: 321-329
Pages count
: 9
|
| Tags |
hydrotreatment, hydrodeoxygenation, MoS2, sulfide catalyst, rapeseed oil, co-processing |
| Authors |
Vlasova Evgeniya N.
1,2
,
Pakharukova Vera P.
1
,
Bukhtiyarova Galina A.
1,2
,
Deliy Irina V.
1,2
,
Aleksandrov Pavel V.
1,2
,
Porsin Aleksander A.
1
,
Gerasimov Evgeny Yu.
1,2
,
Bukhtiyarov Valerii I.
1,2
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
| 2 |
Novosibirsk National Research University
|
|
Funding (1)
|
1
|
The Ministry of Education and Science of the Russian Federation
|
14.575.21.0128 (RFMEFI57517X0128)
|
The effect of Mo loading on the dispersion of sulfide phase and catalytic activity of MoS2/Al2O3 catalysts in the rapeseed HDO was studied. Five catalysts with Mo loading between 10 and 16 wt.% were prepared by impregnation of alumina with aqueous solutions containing MoO3, H3PO4 and citric acid, subsequent drying and high-pressure sulfidation. HDO activity of the MoS2/Al2O3 catalysts was enhanced with the Mo content increase from 10 to 12 wt.% and then was decreased with the further increase of Mo loading. The behavior of MoS2/Al2O3 and P-MoS2/Al2O3 catalysts with the same Mo loading (near 14 wt.%) was compared in the hydrodeoxygenation of rapeseed oil demonstrating the higher activity of P-promoted system. The modeling of XRD patterns with using of the Debye Function Analysis (DFA) gives the lower dXRD of the MoS2 particles in the P-MoS2/Al2O3 catalyst in comparison with MoS2/Al2O3 one. We proposed that P incorporation in the MoS2 slabs can result in a higher deformation of the supported MoS2 particles, which in turn could have been a reason of higher activity of P-MoS2/Al2O3 catalyst.