Regarding the pre-reduction treatment of catalysts
Thread Content
After the catalyst is prepared, it needs to undergo pre-reduction treatment. What are the methods of reduction? I am referring to solid catalysts in which Co serves as the active component and aluminum oxide acts as the carrier. Last edited by DAC The army rules the world on 2008-11-17 at 22:20
Is the poster in the catalyst industry? There are two ways of catalyst reduction: one is deep reduction, which is necessary before the system starts operating after the user has loaded the catalyst; pure hydrogen or hydrogen mixed with some nitrogen can be used as the reduction medium ； Another type is surface pre-reduction, in which the catalyst is treated with reduction processes by the manufacturer before it leaves the factory, and a special process is used to apply a mild passivation layer to its surface. Such catalysts are more expensive than those that are fully passivated, but they undergo reduction more quickly before being put into use; they are commonly known as pre-reduced catalysts, and they generally help to reduce the overall reduction time required for the catalyst as well as improve its performance
Surface pre-reduction involves the catalyst being treated with reduction processes by the manufacturer before it leaves the factory, followed by a shallow passivation of its surface using special techniques. Such catalysts are more expensive than those that are fully passivated, but they undergo reduction more quickly before being put into use; they are commonly known as pre-reduced catalysts. This approach helps to reduce the overall reduction time required for the catalyst and improves its performance. There are two methods for surface reduction: one is using hydrogen for reduction, and the other is…?
In any case, the main component used should be hydrogen