Remove catalyst
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Catalyst shutdown can be carried out by removing the catalyst from those locations; how can one determine whether the catalyst has been properly removed?
Removing the agent from large discharge lines is determined based on the amount stored in each section and its density to figure out whether the process is complete
There are discharge lines at locations such as the dilute and dense phases in the regenerator, the external heat exchanger, and the bottom of the lift pipe. In addition to observing the density and reserves in various areas, the change in unloading pressure is generally used as a reference on-site for unloading.