Synthesis, Characterization, and Reactivity Studies of Supported Mo2C with Phosphorus Additive

The effect of phosphorus on Mo2C supported on γ-Al2O3and activated carbon was studied. The catalysts were characterized by CO chemisorption, BET surface area measurements, X-ray diffraction, X-ray photoelectron spectroscopy, and near-edge X-ray absorption fine structure, and tested for their reactiv...

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Bibliographic Details
Published in:Journal of catalysis 1998-05, Vol.176 (1), p.61-67
Main Authors: Dhandapani, B., Ramanathan, S., Yu, C.C., Frühberger, B., Chen, J.G., Oyama, S.T.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts: preparations and properties
Chemistry
Exact sciences and technology
General and physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The effect of phosphorus on Mo2C supported on γ-Al2O3and activated carbon was studied. The catalysts were characterized by CO chemisorption, BET surface area measurements, X-ray diffraction, X-ray photoelectron spectroscopy, and near-edge X-ray absorption fine structure, and tested for their reactivity for hydroprocessing reactions, particularly hydrogenation, hydrodesulfurization (HDS) and hydrodenitrogenation (HDN), using model liquid compounds. The P-containing catalysts had higher reactivity for HDN than those without P. HDS was higher when the Mo2C was synthesized on γ-Al2O3previously treated with P than when the Mo component and P were added together on γ-Al2O3. Postreaction characterization indicates that the catalysts were tolerant of sulfur.
ISSN:0021-9517
1090-2694
DOI:10.1006/jcat.1998.2004