Kinetics of Carbon Dioxide Reforming of Natural Gas Using Different Catalysts

2009 ◽  
Vol 27 (15) ◽  
pp. 1661-1673 ◽  
Author(s):  
S. A. El-Temtamy ◽  
S. A. Ghoneim ◽  
A. K. El-Morsy ◽  
A. Y. El-Naggar ◽  
R. A. El-Salamouny
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Carbon Dioxide Reforming ◽  
Kinetics Of

scholarly journals On the Mechanism of Methane Conversion in the Nonсatalytic Processes of Its Thermal Pyrolysis and Steam and Carbon Dioxide Reforming

2021 ◽  
Author(s):  
E. Busillo ◽  
V. I. Savchenko ◽  
V. S. Arutyunov
Keyword(s):  
Carbon Dioxide ◽  
Methane Conversion ◽  
Carbon Dioxide Reforming ◽  
Temperature Range ◽  
Thermal Pyrolysis ◽  
First Order Kinetics ◽  
Initial Stage ◽  
Conversion Of Methane ◽  
Exponential Factors ◽  
Kinetics Of

Abstract A detailed kinetic modeling of the noncatalytic processes of thermal pyrolysis and steam and carbon dioxide reforming of methane revealed almost completely identical kinetics of the methane conversion in these processes. This suggests that, in the temperature range 1400–1800 K, the initial stage of conversion of methane in all these processes is its thermal pyrolysis. The modeling results agree well with the experimental data on methane pyrolysis. For the temperature range examined, the Arrhenius expressions (pre-exponential factors and activation energy) were obtained in the first-order kinetics approximation for the rate of methane conversion in the processes studied. The expressions derived may be useful for making preliminary estimates and carrying out engineering calculations.

An in situ, energy-dispersive x-ray diffraction study of natural gas conversion by carbon dioxide reforming

1993 ◽  
Vol 97 (13) ◽  
pp. 3355-3358 ◽  
Author(s):  
A. T. Ashcroft ◽  
A. K. Cheetham ◽  
R. H. Jones ◽  
S. Natarajan ◽  
J. M. Thomas ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Diffraction Study ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
Carbon Dioxide Reforming ◽  
Natural Gas Conversion ◽  
X Ray ◽  
Gas Conversion

Response surface methodology for carbon dioxide reforming of natural gas

2016 ◽  
Vol 38 (9) ◽  
pp. 1236-1245 ◽  
Author(s):  
Tahani S. Gendy ◽  
Seham A. El-Temtamy ◽  
Salwa A. Ghoneim ◽  
Radwa A. El-Salamony ◽  
Ashraf Y. El-Naggar ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Response Surface Methodology ◽  
Natural Gas ◽  
Response Surface ◽  
Carbon Dioxide Reforming

Modeling and optimization of the combined carbon dioxide reforming and partial oxidation of natural gas

2001 ◽  
Vol 215 (1-2) ◽  
pp. 211-224 ◽  
Author(s):  
Ariane Leites Larentis ◽  
Neuman Solange de Resende ◽  
Vera Maria Martins Salim ◽  
José Carlos Pinto
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Partial Oxidation ◽  
Carbon Dioxide Reforming ◽  
Modeling And Optimization

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.

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