The CFZ™ process: A cryogenic method for handling high- CO2 and H2S gas reserves and facilitating geosequestration of CO2 and acid gases

The presence of ever higher contents of CO2 and H2S in natural gas resources presents significant economic challenges for their development and commercialization and for the safe disposal of CO2 and acid gases. They share some of the same challenges faced in capturing CO2 from flue gas. In fact, conventional natural gas treating technologies have been suggested to treat flue gas. CFZ™ is a cryogenic distillation process for the single step removal of CO2 and H2S from natural gas. It is capable of advantageously handling natural gases with a wide range of CO2 and H2S content.