High Purity Nitrogen Gas

Refineries, petrochemical plants and marine tankers use High Purity Nitrogen to purge equipment, tanks and pipelines of dangerous vapors and gases (for example, after completing a pipeline transfer operation or ending a production run) and to maintain an inert and protective atmosphere in tanks storing flammable liquids. Cold nitrogen gas is used to cool reactors filled with catalyst during maintenance work. Nitrogen is also used to maintain pressure in oil and natural gas producing formations. Nitrogen has little affinity for liquid hydrocarbons, thus it builds up in and remains in the gas cap. Nitrogen is used as an inert gas to push liquids through lines, to clear lines and to propel "pigs" through pipelines to sweep out one material before using the line to transport another material.