Start-up and shutdown times of catalytic cracking units
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Regarding the scheduling of startup and shutdown periods for catalytic cracking units, why is it 3 days of shutdown followed by 4 days of operation? What are the specific requirements? Thank you! ! !
There’s no fixed requirement for this; it depends on the actual conditions of the device. If a large amount of lining needs to be replaced, it will take several days just to heat up the dryer, and production will also have to stop. The decision depends on factors such as the specific temperature.
Operation must be carried out in accordance with the heating curve; this time period cannot be skipped, especially when replacing the lining in large quantities!