DOT-PHMSA Contract: 693JK32210008POTA Best Purging Practices . . . Avoidance of methane emissions from purging operations have both economic benefits for operators and environmental benefits for the community Using alternatives to venting natural gas into the atmosphere also provides a safer work environment for pipeline and gathering system operators
PURGING HIGH PURITY GAS DELIVERY SYSTEMS - Matheson Removal of the undesired gas, either air or process gas, is known as purging Purging is accomplished by either evacuation of the undesired gas or replacement with a high purity inert gas, or by a combination of both methods
Pipeline Purges - UniversalPegasus A combination of pulling down the pipeline and purging could be used Natural gas or other gas pipelines might have the pressure “pulled down” with downstream com-pression There may be a mechanical limit as to how low the pipeline pressure can be pulled down
Microsoft Word - 2 Purging Guidelines - azcc. gov GUIDELINES FOR PURGING ABANDONED GAS LINES The purpose of this guideline is to provide minimum requirements and information on purging operations Purging is the process of expelling gas from the pipe and replacing it with air
Evacuation Injection or Gas Flushing (purging) Pre-gassing is the process of gas re-placement prior to filling, where the product is treated separately before filling process Pre-gassing systems are designed in such a way to provide prod-uct with low and controlled residual oxy-gen levels to the packing machines