It is not unusual to discover natural gas deposits containing substantial levels of nitrogen. More often than not, these discoveries are not developed because the nitrogen levels exceed the four percent inert requirement for pipeline gas. A Nitrogen Rejection System may provide an economically practical approach to the development of these resources. Nitrogen rejection can be accomplished in several ways. Three of the most commonly used methodologies include cryogenic systems, techniques that utilize a solvent for hydrocarbon recovery, and the pressure swing adsorption process. The technology chosen for removing nitrogen depends largely on a number of variables including the volume of gas to be processed, the quantity of natural gas liquids present in the methane mix, and the nitrogen level in the gas. > >