Catalytic cracking product refining system
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Is water flushing required before starting up the dry and liquid stripping systems for the refining of catalytic cracking products?
Do you mean starting up the existing unit? In that case, water flushing is required. If it’s started up after maintenance, water flushing isn’t necessary; steam purging is sufficient
When a new installation is put into operation, it is necessary to carry out water flushing and water testing in order to ensure that the pipes are clean and the process operates correctly. The maintenance device is not really necessary once operations start (if money is no object), as steam or nitrogen can be used to clear it.