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Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: Samyunisa on January 31, 2018, 03:31:39 AM

Title: Re-oxidation of Iron oxide catalyst after reduction during the haber process
Post by: Samyunisa on January 31, 2018, 03:31:39 AM

I wanted to find out how to prevent re-oxidation of fused iron oxide after reduction during ammonia synthesis?

Title: Re: Re-oxidation of Iron oxide catalyst after reduction during the haber process
Post by: chenbeier on January 31, 2018, 04:38:58 AM

Does it get really reduced? Definition: A catalyst accelerates a reaction, but itself it will be appears unchanged after the reaction tooks place.



*mod edit to fix typos for clarity

Title: Re: Re-oxidation of Iron oxide catalyst after reduction during the haber process
Post by: adson on September 16, 2018, 11:28:30 AM

Haber process is a continuous process of ammonia synthesis. Catalyst will be always in environment of hydrogen:nitrogen~(3:1) composition. Since hydrogen composition will always keep catalyst in reduced form. Even if the process is stopped due to some unwanted reasons, catalyst will not oxidise for the reason that its a closed system and runs at high pressures. Just one precaution is to be taken that is not to ingress atmospheric air or compressed air by any means.