The problem of coking in hydrogenation catalysts
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We all know that coking of hydrogenation catalysts has a significant impact on them, and we also know how to prevent coking. But what should be done if the catalysts have already coked?
If coking has already occurred, the reactor head can be replaced or the catalyst changed. To prevent coking, appropriate anti-coking catalysts can be used, or the process flow can be modified to avoid coking
Coking occurs over a certain period of time: it happens rapidly at the beginning of operation, and then gradually until an equilibrium level is reached; this is all normal. However, if excessive coking occurs for other reasons, the catalyst can only be replaced.