Kinetics of Carbon Formation from CH4-H2 Mixtures over a Nickel Containing Catalyst
3rd Workshop on C1-C3 Hydrocarbon Conversion : NATO Advanced Research Workshop
14-17 Jul 1997
, E-ISSN: 1873-4308
||Catalyst, Catalytic filamentary carbon, Deactivation, Kinetics, Methane decomposition
Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5 Novosibirsk 630090 Russia
The experimental data, corroborating the effect of CH4–H2 mixture compositions and temperature on the formation of catalytic filamentary carbon (CFC) in methane decomposition over a highly loaded Ni-containing catalyst, are presented. We propose a model of the catalyst deactivation: carbon blocks the surface of a CFC growth center (GC). Using this model, we have derived the equation for calculating the deposition rate of CFC and its maximum quantities which may form during the time of complete catalyst deactivation.