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High-Performance Bimetal NiMo Catalysts Prepared over Novel Cubic Mesoporous Silica with a Cost-Efficient Method for the Removal of Dibenzothiophene
- Source :
- Industrial & Engineering Chemistry Research; May 2019, Vol. 58 Issue: 22 p9300-9313, 14p
- Publication Year :
- 2019
-
Abstract
- Highly ordered mesoporous silica with Pm3ncubic mesostructure and cube-like morphology was facilely fabricated in a cost-efficient aqueous-phase synthesis system. The obtained cubic mesoporous silica (CMS) modified with various aluminum contents were taken as supports to prepare NiMo/Al-CMS catalysts, and the corresponding hydrodesulfurization performance of dibenzothiophene was subsequently assessed. The results showed that as-prepared CMS exhibited a large surface area (865 m2/g) and pore volume (0.92 cm3/g). The incorporated aluminum brought many advantages such as enhanced acidity, modulated metal–support interaction, and improved active metals dispersity, all of which contributed to the high sulfidation degree of catalysts. As a result, the NiMo/Al-CMS-10 catalyst presented superior HDS activity and a higher selectivity for the direct desulfurization route, deriving from a synergistic effect of its admirable textural characteristics, increased acidic property, highly sulfided active phases, and well-dispersed MoS2slabs with moderate stacking layer and slab length.
Details
- Language :
- English
- ISSN :
- 08885885 and 15205045
- Volume :
- 58
- Issue :
- 22
- Database :
- Supplemental Index
- Journal :
- Industrial & Engineering Chemistry Research
- Publication Type :
- Periodical
- Accession number :
- ejs50220797
- Full Text :
- https://doi.org/10.1021/acs.iecr.9b01094