Restarting a Mothballed Process

As we are trying to describe pre-startup safety review techniques as they apply across all types of processing facilities, this situation shows how scheduling needs may differ across different types of plants. 

The term mothballed in a general sense means a section of a unit or process has been out of use for an extended period of time. Some organizations use a specified period of time ranging from 2 weeks to 6 months as determined by the nature of their process. Here is where the scheduling consideration varies by the processes involved. The methods for properly mothballing (also called laying-up ) process equipment can be very different. 

View the return to service of a mothballed unit as a change to be managed, and undergo an associated pre-startup safety review. The analysis of the proper startup from lay-up steps by working with the mothballed unit s restart team will allow the PSSR team to schedule their activities accordingly and more efficiently. 

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