| Autor: |
Rakov, Edward G., Ivanov, Igor G., Blinov, Sergey N., Kazakov, Nikolai V., Skudin, Valery V., Digurov, Nikolai G., Bogdanovich, Anna K. |
| Předmět: |
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| Zdroj: |
Fullerenes, Nanotubes & Carbon Nanostructures; Feb2004, Vol. 12 Issue 1/2, p29-32, 4p |
| Abstrakt: |
By method of isothermal gravimetry at 600–700°C, CH4 concentration 32–100% in Ar and 91–100% in H2 under atmospheric pressure the kinetics of CH4 pyrolysis under Ni/La2O3 catalysts is studied. Estimated apparent activation energy of reaction is 73 kJ/mol for fresh catalyst and 71 kJ/mol for aged one. The reaction order on CH4 changes from 1.05 at 600°C to 1.3 at 700°C. The influence of H2 concentration on the reaction rate is more complicated. On the basis of kinetics measurements continuously working laboratory-scale reactor with gas and catalyst counter-flow is constructed and tested. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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