TY - JOUR
T1 - Trimetallic Catalyst Supported Zirconium-Modified Three-Dimensional Mesoporous Silica Material and Its Hydrodesulfurization Performance of Dibenzothiophene and 4,6-Dimethydibenzothiophene
AU - Meng, Qian
AU - Du, Peng
AU - Duan, Aijun
AU - Zhao, Zhen
AU - Liu, Jian
AU - Shang, Dongjie
AU - Wang, Bo
AU - Jia, Yuanzhen
AU - Liu, Cong
AU - Hu, Di
N1 - KAUST Repository Item: Exported on 2022-06-14
Acknowledged KAUST grant number(s): OSR-2019-CPF-4103.2
Acknowledgements: This research was financially supported by the National Natural Science Foundation of China (No. 21878330, 21676298), the National Science and Technology Major Project, the CNPC Key Research Project (2016E-0707), and the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award (No. OSR-2019-CPF-4103.2).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2019/12/20
Y1 - 2019/12/20
N2 - To prepare the highly active hydrodesulfurization (HDS) catalyst, modified Zr-KIT-5 materials were synthesized by in situ synthesis method and supported NiMoW trimetallic active phases for dibenzothiophene (DBT) and 4,6-dimethyldibenzothiphene (4,6-DMDBT) hydrodesulfurization reactions. The analysis of Fourier-transform infrared and X-ray photoelectron spectroscopy proved that Zr species had been incorporated into the skeleton of mesoporous KIT-5 material. Moreover, it was demonstrated from the Py-IR and high-resolution transmission electron microscopy characterizations that the embedded Zr species not only enhanced the acidity of catalysts but also modulated the distribution of active metals. Among all of the modified trimetallic catalysts, the NiMoW/ZrKT-60 displayed the highest HDS activities of DBT (99.5%) and 4,6-DMDBT (91.0%), which was derived from the open and large three-dimensional mesoporous channel, suitable acidity, and appropriate Mo(W)S2 dispersion. Furthermore, for 4,6-DMDBT reaction, the NiMoW/ZrKT-60 catalyst with the highest B/L ratio (0.22) showed higher hydrogenation and the highest isomerization selectivity.
AB - To prepare the highly active hydrodesulfurization (HDS) catalyst, modified Zr-KIT-5 materials were synthesized by in situ synthesis method and supported NiMoW trimetallic active phases for dibenzothiophene (DBT) and 4,6-dimethyldibenzothiphene (4,6-DMDBT) hydrodesulfurization reactions. The analysis of Fourier-transform infrared and X-ray photoelectron spectroscopy proved that Zr species had been incorporated into the skeleton of mesoporous KIT-5 material. Moreover, it was demonstrated from the Py-IR and high-resolution transmission electron microscopy characterizations that the embedded Zr species not only enhanced the acidity of catalysts but also modulated the distribution of active metals. Among all of the modified trimetallic catalysts, the NiMoW/ZrKT-60 displayed the highest HDS activities of DBT (99.5%) and 4,6-DMDBT (91.0%), which was derived from the open and large three-dimensional mesoporous channel, suitable acidity, and appropriate Mo(W)S2 dispersion. Furthermore, for 4,6-DMDBT reaction, the NiMoW/ZrKT-60 catalyst with the highest B/L ratio (0.22) showed higher hydrogenation and the highest isomerization selectivity.
UR - http://hdl.handle.net/10754/678937
UR - https://pubs.acs.org/doi/10.1021/acs.iecr.9b04647
UR - http://www.scopus.com/inward/record.url?scp=85078654831&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.9b04647
DO - 10.1021/acs.iecr.9b04647
M3 - Article
SN - 1520-5045
VL - 59
SP - 654
EP - 667
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 2
ER -