Electrochemical Properties and Discharge Kinetics of Thin Layer Hydrous Molybdenum Oxide

1977 ◽  
Vol 124 (8) ◽  
pp. 1243-1246 ◽  
Author(s):  
David Elliott
Keyword(s):  
Thin Layer ◽  
Electrochemical Properties ◽  
Molybdenum Oxide ◽  
Kinetics Of

Kinetics of temperature-programmed reactivation of a hydrodesulphurization catalyst

1983 ◽  
Vol 48 (12) ◽  
pp. 3340-3355 ◽  
Author(s):  
Pavel Fott ◽  
Pavel Šebesta
Keyword(s):  
Carbon Dioxide ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Thin Layer ◽  
Kinetic Parameters ◽  
Diffusion Region ◽  
Reaction Heat ◽  
Gaseous Products ◽  
Temperature Programmed ◽  
Kinetics Of

The kinetic parameters of reactivation of a carbonized hydrodesulphurization (HDS) catalyst by air were evaluated from combined thermogravimetric (TG) and differential thermal analysis (DTA) data. In addition, the gaseous products leaving a temperature-programmed reactor with a thin layer of catalyst were analyzed chromatographically. Two exothermic processes were found to take part in the reactivation, and their kinetics were described by 1st order equations. In the first process (180-400 °C), sulphur in Co and Mo sulphides is oxidized to sulphur dioxide; in the second process (300-540 °C), in which the essential portion of heat is produced, the deposited carbon is oxidized to give predominantly carbon dioxide. If the reaction heat is not removed efficiently enough, ignition of the catalyst takes place, which is associated with a transition to the diffusion region. The application of the obtained kinetic parameters to modelling a temperature-programmed reactivation is illustrated on the case of a single particle.

scholarly journals Thin Layer Drying Kinetics of By-Products from Olive Oil Processing

2011 ◽  
Vol 12 (11) ◽  
pp. 7885-7897 ◽  
Author(s):  
Irene Montero ◽  
Teresa Miranda ◽  
Jose Ignacio Arranz ◽  
Carmen Victoria Rojas
Keyword(s):  
Thin Layer ◽  
Olive Oil ◽  
Drying Kinetics ◽  
Oil Processing ◽  
Thin Layer Drying ◽  
Kinetics Of ◽  
By Products
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