unique rate increase with time in catalytic gasification of carbons by hydrogen was examined as to its dependence on reaction conditions, catalyst species, carbon substrates and so on, to clarify the reason of the phenomenon. It was marked with a porous substrate at relatively low temperature when
Gasification of active carbons of different texture impregnated with nickel, cobalt and iron
β Scribed by J.L. Figueiredo; J. Rivera-Utrilla; M.A. Ferro-Garcia
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 587 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
A~~~-Va~ous
series of activated carbons of different texture were impregnated with nickel, cobalt and iron and their reactivities determined for gasification with carbon dioxide. It was found that nickel and cobalt were better catalysts than iron, but in any case high conversions could not be obtained due to catalyst deactivation. The same kinetics were found for nickel and cobalt, suggesting a common mechanism. The texture of the activated carbons was found to be the key factor in determining metal dispersion and, therefore, the reactivity of the impregnated carbons.
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