Interpretation of the non-isothermal reaction of carbon with carbon dioxide by means of kinetic parameters

1976 ◽  
Vol 10 (2) ◽  
pp. 211-221 ◽  
Author(s):  
J. Medek
Keyword(s):  
Carbon Dioxide ◽  
Kinetic Parameters ◽  
Isothermal Reaction

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 An alternative approach to kinetic analysis of temperature-programmed reaction data

RSC Advances ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 3286-3295 ◽  
Author(s):  
A. S. Portnyagin ◽  
A. P. Golikov ◽  
V. A. Drozd ◽  
V. A. Avramenko
Keyword(s):  
Particle Size ◽  
Kinetic Analysis ◽  
Kinetic Parameters ◽  
Isothermal Reaction ◽  
Alternative Approach ◽  
Reaction Data ◽  
Temperature Programmed ◽  
Temperature Programmed Reaction

Presented method of kinetic analysis of non-isothermal reaction data provides precise kinetic parameters for different materials with different morphology and particle size.

Kinetic parameters using an immobilized tetrahexylammonium chloride catalyst in glycidyl methacrylate reaction with carbon dioxide

2007 ◽  
Vol 24 (6) ◽  
pp. 953-959 ◽  
Author(s):  
Sang-Wook Park ◽  
Byoung-Sik Choi ◽  
Dae-Won Park ◽  
Seong-Soo Kim ◽  
Jae-Wook Lee
Keyword(s):  
Carbon Dioxide ◽  
Kinetic Parameters ◽  
Glycidyl Methacrylate ◽  
Chloride Catalyst

On the Temperature Rate Dependent Transformation Processes

2007 ◽  
Vol 537-538 ◽  
pp. 571-578
Author(s):  
Tamás Réti ◽  
Imre Czinege ◽  
Imre Felde ◽  
Lino Costa ◽  
Rafael Colás
Keyword(s):  
Kinetic Parameters ◽  
Kinetic Models ◽  
Rapid Heating ◽  
Rate Equations ◽  
Transformation Rate ◽  
Isothermal Reaction ◽  
Heating And Cooling ◽  
Rate Dependent ◽  
Temperature Rate ◽  
Transformation Processes

Kinetic models of new types are suggested which are designated primarily to predict the progress of non-isothermal transformations occurring during rapid heating and cooling in alloys. A common feature of each model outlined is that it takes into account not only the varying temperature but also the rate of temperature change on the transformation rate of the process. The two models represented by differential equations are generated by using the concept of virtual kinetic parameters, which can be determined from non-isothermal experiments only. A key property of the virtual parameter "p" involved in the transformation rate equations is that it quantitatively characterizes the temperature rate dependence of the non-isothermal reaction.

Estimation of the carbonation reaction kinetic parameters for dilute methane and carbon dioxide conditions in a calcium looping process

2017 ◽  
Vol 37 (4) ◽  
pp. 1312-1318 ◽  
Author(s):  
Savankumar Patel ◽  
Priscilla Tremain ◽  
Behdad Moghtaderi ◽  
James Sandford ◽  
Kalpit Shah
Keyword(s):  
Carbon Dioxide ◽  
Kinetic Parameters ◽  
Reaction Kinetic ◽  
Carbonation Reaction ◽  
Calcium Looping
Sign in / Sign up

Export Citation Format

Share Document