TY - JOUR
T1 - Hierarchically Ordered Micro-/Mesoporous Material Assembled by a Zeolite W Nanocrystal and Its Hydro-Upgrading Performance for FCC Gasoline
AU - Fan, Jiyuan
AU - Duan, Aijun
AU - Wang, Xilong
AU - Zheng, Peng
AU - Cao, Zhengkai
AU - Liu, Cong
AU - Xiao, Chengkun
AU - Mei, Jinlin
AU - Jiang, Guiyuan
AU - Xu, Chunming
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was financially supported by the National Natural Science Foundation of China (nos. 21878330, 21676298, U1463207 and 21503152), CNPC Key Research Project (2016E-0707) and KLGCP (GCP201401).
PY - 2019/12/26
Y1 - 2019/12/26
N2 - A novel micro-/mesoporous composite material W-MCM-41 was synthesized through self-assembly of the zeolite W nanocrystal precursor. The hierarchical structure material inherited the combining advantages of the ordered mesopores of MCM-41 and the modulated acid properties of zeolite W. Different crystallization times of zeolite W and various molar ratios of CTAB/SiO2 were optimized to achieve good physicochemical properties of micro-/mesoporous materials, which were used to prepare the corresponding CoMo-supported catalysts.
Various characterization methods were adopted to analyze the relationship between the catalytic performance and physicochemical properties of series catalysts. The CoMo/WMA catalyst presented the highest hydrodesufurization activity (93.4%) and the best octane number preservability (ΔRON = −1.3 unit), which could be attributed to desirable texture of support, moderate metal−support interaction, and highest sulfidation degree of active phases. The distribution of sulfide compounds in hydrotreating products was compared with that of feedstock. Moreover, the formation mechanism of the composite material was discussed.
AB - A novel micro-/mesoporous composite material W-MCM-41 was synthesized through self-assembly of the zeolite W nanocrystal precursor. The hierarchical structure material inherited the combining advantages of the ordered mesopores of MCM-41 and the modulated acid properties of zeolite W. Different crystallization times of zeolite W and various molar ratios of CTAB/SiO2 were optimized to achieve good physicochemical properties of micro-/mesoporous materials, which were used to prepare the corresponding CoMo-supported catalysts.
Various characterization methods were adopted to analyze the relationship between the catalytic performance and physicochemical properties of series catalysts. The CoMo/WMA catalyst presented the highest hydrodesufurization activity (93.4%) and the best octane number preservability (ΔRON = −1.3 unit), which could be attributed to desirable texture of support, moderate metal−support interaction, and highest sulfidation degree of active phases. The distribution of sulfide compounds in hydrotreating products was compared with that of feedstock. Moreover, the formation mechanism of the composite material was discussed.
UR - http://hdl.handle.net/10754/661411
UR - https://pubs.acs.org/doi/10.1021/acs.iecr.9b05689
UR - http://www.scopus.com/inward/record.url?scp=85078526018&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.9b05689
DO - 10.1021/acs.iecr.9b05689
M3 - Article
SN - 0888-5885
VL - 59
SP - 1101
EP - 1112
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
IS - 3
ER -