Journal
JOURNAL OF CATALYSIS
Volume 286, Issue -, Pages 124-136Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2011.10.023
Keywords
Al-SBA-15; pH adjustment; Hydrodesulfurization catalyst
Categories
Funding
- National Basic Research Program of China (973 Program) [2010CB226901]
- National Natural Science Foundation of China [20573021, 20825621]
- Ministry of Education of China [20060246010]
- Society of Technical Communication (Shanghai) [08DZ2270500]
Ask authors/readers for more resources
Highly ordered mesoporous Al-SBA-15 with high aluminum content and high hydrothermal stability has been synthesized by a new pH-adjusting and high-temperature hydrothermal treatment approach. Thus-prepared samples were characterized by X-ray fluorescence spectroscopy, X-ray powder diffraction, Al-27 nuclear magnetic resonance spectroscopy. N-2 adsorption-desorption, temperature-programmed desorption of ammonia, Fourier transformed infrared spectroscopy with pyridine adsorption, temperature-programmed reduction with hydrogen, and high-resolution transmission electron microscopy. The results Showed that Al-SBA-15 had high aluminum loading (with its molar Si/Al ratio of 5.1, similar to that of the initial gel mixture) and homogenously distributed Al species in the walls. Moreover, the product showed extremely high hydrothermal stability (with only a 15.2% decrease in surface area after steaming at 800 degrees C for 5 h) and moderate acidity. An Al-SBA-15-supported NiW hydrodesulfurization catalyst was prepared and evaluated using dibenzothiophene hydrodesulfurization. Compared with gamma-Al2O3- and SBA-15-supported catalysts, the Al-SBA-15-supported NiW catalyst showed outstanding hydrodesulfurization activity. (C) 2011 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available