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Permanent Inactivation
Jun 26, 2017

The active component of a catalyst is inactivated by certain foreign elements (poisoning) and is often inactivated permanently. These foreign components are mostly caused by chemical reaction or ion exchange with the active component of the catalyst, which results in the change of the active component. If acidic catalysts are neutralized by alkalis, the noble metal catalysts are poisoned by sulfides or nitrides. Deactivation of catalyst poisoning often shows rapid decrease in activity. The active ingredient is lost or inactivated during use, resulting in permanent