Single catalyst particle growth modeling in thermocatalytic decomposition of methane

ThermoCatalytic Decomposition of methane (TCD) is studied as a method to convert natural gas into hydrogen and functional carbon. In these processes the carbon typically formed on top catalyst phase leading particle growth. Therefore, development growth model necessary understand limitations thermocatalytic decomposition assess optimal parameters process conditions. this paper, presented describe particle. This coupled requires kinetic equations information deactivation rates which have been from literature. The morphology changes due formation, leads eventual deactivation. expressions are based analogy with particles in polyolefin production. To combine effects growth, kinetics, internal heat mass transfer, Multi-Grain Model (MGM) was used. Results confirm that currently available catalysts yield not affected by transfer limitations, however, availability more active will become important. Temperature, has significant role it regulates rate thus rate, turn influences optimum temperature for production nano-carbon, within reasonable time, therefore sensitively depends choice catalyst.