CNT Production through the Catalytic Thermal Decomposition of Methane over Ni-Cu/Al2O3 Catalyst in a Fluidized Bed

2012 ◽  
pp. 446-449
Author(s):  
Gian Paolo Obligacion Bernardo ◽  
Leonila C. Abella
Keyword(s):  
Thermal Decomposition ◽  
Fluidized Bed ◽  
Catalytic Thermal Decomposition ◽  
Decomposition Of Methane ◽  
Al2o3 Catalyst

scholarly journals Impact of Carbon Dioxide on the Non-Catalytic Thermal Decomposition of Methane

2021 ◽  
Vol 5 (1) ◽  
pp. 12
Author(s):  
Tobias Marquardt ◽  
Sebastian Wendt ◽  
Stephan Kabelac
Keyword(s):  
Carbon Dioxide ◽  
Thermal Decomposition ◽  
Large Scale ◽  
Flow Reactor ◽  
Catalytic Decomposition ◽  
Hydrogen Yield ◽  
Carbon Dioxide Conversion ◽  
Carbon Dioxide Gas ◽  
Catalytic Thermal Decomposition ◽  
Decomposition Of Methane

Economically and ecologically, the thermal decomposition of methane is a promising process for large scale hydrogen production. In this experimental study, the non-catalytic decomposition of methane in the presence of small amounts of carbon dioxide was analyzed. At large scales, natural gas or biomethane are possible feedstocks for the thermal decomposition and can obtain up to 5% carbon dioxide. Gas recycling can increase the amount of secondary components even further. Experiments were conducted in a packed flow reactor at temperatures from 1250 to 1350 K. The residence time and the amounts of carbon dioxide and hydrogen in the feed were varied. A methane conversion of up to 55.4% and a carbon dioxide conversion of up to 44.1% were observed. At 1300K the hydrogen yield was 95% for a feed of methane diluted in nitrogen. If carbon dioxide was added to the feed at up to a tenth with regard to the amount of supplied methane, the hydrogen yield was reduced to 85%. Hydrogen in the feed decreases the reaction rate of the methane decomposition and increases the carbon dioxide conversion.

Parametric study of the decomposition of methane using a NiCu/Al2O3 catalyst in a fluidized bed reactor

2010 ◽  
Vol 35 (18) ◽  
pp. 9801-9809 ◽  
Author(s):  
J.L. Pinilla ◽  
I. Suelves ◽  
M.J. Lázaro ◽  
R. Moliner ◽  
J.M. Palacios
Keyword(s):  
Fluidized Bed ◽  
Parametric Study ◽  
Fluidized Bed Reactor ◽  
Decomposition Of Methane ◽  
Al2o3 Catalyst
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