Steady-state multiplicity features of an adiabatic fixed-bed reactor with Langmuir-Hinshelwood kinetics; carbon monoxide or carbon dioxide methanation

1984 ◽  
Vol 23 (3) ◽  
pp. 280-288 ◽  
Author(s):  
Stig Wedel ◽  
Dan Luss
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Steady State ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Carbon Dioxide Methanation ◽  
State Multiplicity

scholarly journals Modelling of Carbon Monoxide and Carbon Dioxide Methanation under Industrial Condition

2020 ◽  
Author(s):  
Artur Wodołażski
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Process Simulation ◽  
Physical Modeling ◽  
Dynamic Properties ◽  
Fixed Bed ◽  
Industrial Condition ◽  
Development Models ◽  
Fixed Bed Reactors ◽  
Carbon Dioxide Methanation

The development of methanation technology is supported by detailed modeling and process simulation to optimize the design and study of its reaction dynamic properties. The chapter presents a discussion of selected catalysts and its kinetic models in the methanation reaction. The development models of fixed-bed reactors in the methane synthesis were also presented. Chemical and physical modeling of methanation reactions with optimization, exploitation, and the analysis of critical processes in time is an important contribution to the technology modernization.

Experimental Study of the Reforming of Methane with Carbon Dioxide over Coal Char

2008 ◽  
Vol 6 (1) ◽  
Author(s):  
Yanbing Li ◽  
Rui Xiao ◽  
Baosheng Jin ◽  
Huiyan Zhang
Keyword(s):  
Carbon Dioxide ◽  
Flow Rate ◽  
Fixed Bed ◽  
Coke Oven ◽  
Fixed Bed Reactor ◽  
Internal Diameter ◽  
Generation System ◽  
Coke Oven Gas ◽  
Surface Areas ◽  
Conversion Of Methane

As one of the fundamental issues of the new poly-generation system on the basis of gasification gas and coke oven gas, carbon dioxide reforming of methane experiments have been performed over coal chars derived from different parent coals in a lab-scale fixed-bed reactor (internal diameter 12 mm, length 700 mm). The char derived from TongChuan coal exhibited higher activity than other samples employed under the same conditions. After the reforming reaction, the char samples were covered with different amounts of carbon deposition which resulted in the surface areas decrease. As the flow rate of feed gas increased from 200 ml/min to 600 ml/min over the Xuzhou char sample at 1050 degrees Celsius, the conversion of methane decreased from 52.7% to 17.5% and the H2 /CO dropped from 0.75 to 0.55. While maintaining the flow rate of CO2 at 20ml/min at 1050 degrees Celsius, the mole ratio of reactants CH4/CO2 was varied from 1 to 1.75 which led to the H2/CO ratio increase from 0.75 to 1.2.

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