SPECIALIZED PIPELINE SOLUTIONS

NITROGEN PURGING

Nitrogen purging is the replacement of an undesirable atmosphere by the inert gas nitrogen. During the commissioning of a process plant, the replacement of air by purging with nitrogen is known as ‘oxygen freeing’ or ‘start up purging’. During a turnaround, the replacement of a hydrocarbon atmosphere with nitrogen is familiarly known as ‘degassing’ or ‘shutdown purging’.