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Catalyst Deactivation

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Catalyst Deactivation

The fluidized catalytic cracking catalysts are disabled for purposes of regeneration, pollutant load and the process of coking. The deactivation may be temporary or permanent depending on the cause of it.

Thermal deactivation occurs at high temperatures and is permanent, is usually caused by a reverse flow in the structure or an excessive use of torch oil. This loss of activity occurs by the fusion of active structures of the catalyst. This deactivation is more severe than the hydrothermal deactivation.


The fluidized catalytic cracking catalysts are disabled for purposes of regeneration, pollutant load and the process of coking. The deactivation may be temporary or permanent depending on the cause of it.

Thermal deactivation occurs at high temperatures and is permanent, is usually caused by a reverse flow in the structure or an excessive use of torch oil. This loss of activity occurs by the fusion of active structures of the catalyst. This deactivation is more severe than the hydrothermal deactivation.

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Submitted by puput on Tue, 06/01/2010 - 01:46.

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