METHODS FOR RECOVERING ARGON

摘要

Methods for recovering argon from a natural gas stream being purified are disclosed. The argon will be separated from the natural gas with helium and other impurities and can be recovered as liquids from the flash separation step of purifying the helium. The argon that is separated from the helium can be rectified to remove further impurities from the argon which can be recovered for storage or other uses.