Kinetic study of the deep hydrodesulfurization of dibenzothiophene over molybdenum carbide supported on a carbon black composite: Existence of two types of active sites

2007 ◽  
Vol 119 (1-4) ◽  
pp. 3-6 ◽  
Author(s):  
A. Hynaux ◽  
C. Sayag ◽  
S. Suppan ◽  
J. Trawczynski ◽  
M. Lewandowski ◽  
...  
Keyword(s):  
Carbon Black ◽  
Kinetic Study ◽  
Active Sites ◽  
Molybdenum Carbide ◽  
Deep Hydrodesulfurization

Comparative kinetic study of the hydrodenitrogenation of indole over activated carbon black composites (CBC) supported molybdenum carbides

2004 ◽  
Vol 275 (1-2) ◽  
pp. 15-24 ◽  
Author(s):  
Céline Sayag ◽  
Mersaka Benkhaled ◽  
Sebastian Suppan ◽  
Janusz Trawczynski ◽  
Gérald Djéga-Mariadassou
Keyword(s):  
Activated Carbon ◽  
Carbon Black ◽  
Kinetic Study ◽  
Molybdenum Carbides

Importance of fullerenic active sites in surface modification of carbon black by plasma polymerisation

Carbon ◽  
2009 ◽  
Vol 47 (5) ◽  
pp. 1231-1238 ◽  
Author(s):  
T. Mathew ◽  
R.N. Datta ◽  
W.K. Dierkes ◽  
W.J. van Ooij ◽  
J.W.M. Noordermeer ◽  
...  
Keyword(s):  
Surface Modification ◽  
Carbon Black ◽  
Active Sites ◽  
Plasma Polymerisation

Supported Molybdenum Carbide Catalysts: Structure-Function Relationships for Hydrodenitrogenation

1996 ◽  
Vol 454 ◽  
Author(s):  
Gregory M. Dolce ◽  
Levi T. Thompson
Keyword(s):  
Active Sites ◽  
Molybdenum Carbide ◽  
Metal Carbides ◽  
Model Compounds ◽  
Early Transition Metal ◽  
Molybdenum Carbides ◽  
Temperature Programmed ◽  
Supported Molybdenum Carbide ◽  
Compositional Properties ◽  
Carbide Particles

ABSTRACTEarly transition metal carbides and nitrides have been shown to be active for the hydrotreatment of model compounds and petroleum crudes. In this paper we describe our investigations of the structural and compositional properties of γ-Al2O3-supported molybdenum carbides and efforts to correlate these properties with their pyridine and quinoline hydrodenitrogenation (HDN) activities. The HDN activities of the materials scaled linearly with the loading and oxygen chemisorptive uptake. Oxygen chemisorption results also suggested that the molybdenum carbide particles were highly dispersed and perhaps raft-like. Using temperature programmed desorption and infrared spectroscopy of carbon monoxide, we were able to identify two types of sites on the carbides; sites “on top” of the particle and sites at the perimeter. We have tentatively concluded that the most active sites for HDN were “on top” of the supported carbide particles.

Characterization of active sites for methane decomposition on carbon black through acetylene chemisorption

Carbon ◽  
2008 ◽  
Vol 46 (2) ◽  
pp. 342-348 ◽  
Author(s):  
Sang Yup Lee ◽  
Jung Hun Kwak ◽  
Gui Young Han ◽  
Tae Jin Lee ◽  
Ki June Yoon
Keyword(s):  
Carbon Black ◽  
Active Sites ◽  
Methane Decomposition
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