Preparation of Co–Mo/B2O3/Al2O3 catalysts for hydrodesulfurization: Effect of citric acid addition
✍ Scribed by Nino Rinaldi; Usman; Khalida Al-Dalama; Takeshi Kubota; Yasuaki Okamoto
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 547 KB
- Volume
- 360
- Category
- Article
- ISSN
- 0926-860X
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The effects of boron on the dispersion of active metal species and hydrodesulfurization (HDS) activity of dibenzothiophene (DBT) over Ni-Mo/ -Al 2 O 3 containing boron were studied by means of BET surface area measurement, powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Mo K-
The effect of gallium in W/Ga(x)-␥-Al 2 O 3 catalysts was investigated in the hydrodesulfurization of dibenzothiophene. The ␥-Al 2 O 3 carrier was modified by the gallium addition prior to W impregnation and further calcination at 723 K. An electrophoretic study was carried out on the calcined Ga sa