Process to reduce the pre-reduction step for catalysts for...

Details Process to reduce the pre-reduction step for catalysts for... Process to reduce the pre-reduction step for catalysts for...

D - Textiles, Paper

01

F

D01F 9/12 (2006.01)

Patent

CA 2588212

A process to eliminate or reduce the pre-reduction step for catalysts for nano- carbon synthesis by first, heating a metal oxide at 5 degrees C/min to 350 - 500 degrees C for 70-90 minutes under 10 - 20% hydrogen; optionally holding the temperature for 10 to 60 minutes; then initiating carbonaceous feedstock flow.

L'invention concerne un procédé permettant d'éliminer ou de réduire l'étape de pré-réduction pour des catalyseurs utilisés dans la synthèse de nanocarbone. Ce procédé consiste tout d'abord à chauffer un oxyde métallique à 5· C/min jusqu'à 350-500· C pendant 70-90 minutes dans un flux contenant 10 à 20 % d'hydrogène ; puis à maintenir la température pendant 10 à 60 minutes ; et enfin à initier un écoulement de charge d'alimentation carbonée.

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