Pipeline purging with nitrogen gas is a process that involves removing unwanted gases and impurities from a pipeline system environment using nitrogen gas.

Nitrogen is an inert gas that can effectively displace oxygen and other pro-oxidative gases from industrial processes without reacting chemically with the substrates.

The process of pipeline purging with nitrogen gas is critical during natural gas line commissioning for flow lines. This procedure is necessary to eliminate oxygen, water vapor, and other impurities that are retained within a newly laid pipeline network .

The nitrogen purging process involves connecting a nitrogen source to the pipeline and introducing nitrogen gas into the pipeline. This flushes out any air, moisture, or impurities that may be present inside the pipeline. The nitrogen gas is then circulated through the pipeline, creating a nitrogen-rich environment.