期刊
JOURNAL OF POROUS MATERIALS
卷 24, 期 4, 页码 941-946出版社
SPRINGER
DOI: 10.1007/s10934-016-0333-6
关键词
Spherical mesocellular silica foams; Support; Catalyst; Hydrodesulfurization; Diesel
资金
- National Natural Science Foundation of China [21276277, U1463207]
- CNOOC project
- CNPC
- Guangxi University PRPPIT Project
High surface area aluminum containing spherical mesocellular silica foams (SMCFs) with ultra-large pore volume and 3D pore size were successfully synthesized through a simple hydrothermal route, and the as-synthesized aluminum containing SMCFs (Al-SMCFs) was applied as the support of NiMo-base catalyst for the hydrodesulfurization (HDS) of fluid catalytic cracking (FCC) diesel. The as-synthesized supports and corresponding catalysts were characterized by powder small X-ray diffraction, nitrogen physisorption, scanning electron microscopy, transmission electron microscopy (TEM), inductively coupled plasma optical emission spectroscopy, and temperature-programmed reduction with H-2. The characterization results showed that, compared with other prepared catalysts (NiMo/Al-SBA-15 and NiMo/Al-KIT-6), the NiMo/Al-SMCFs catalyst possessed the most optimal physicochemical parameters, i.e., ultra-large 3D pore size (42.0 nm), high surface area (330.1 m(2)center dot g(-1)), and ultra-large pore volume (1.96 cm(3)center dot g(-1)), resulting in the formation of more homogeneous distribution of octahedral Mo active species and good mass transfer performance. Consequently, the NiMo/Al-SMCFs catalyst displayed the outstanding HDS performance (98.8%) of FCC diesel, confirming that the Al-SMCFs may be a type of promising candidate for oil hydrotreating.
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