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The Controlled Freeze Zone Technology for the Commercialization of Sour Gas Resources
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, IPTC 2014: International Petroleum Technology Conference, Jan 2014, cp-395-00180
Abstract
Controlled Freeze Zone™ is an efficient single-step cryogenic distillation process for the removal of carbon dioxide, hydrogen sulfide and other impurities from natural gas. Rather than avoiding the freezing of CO2 at cryogenic temperatures, the solidification is allowed to take place, albeit in a very controlled fashion. The technology has shown the potential to more efficiently and cost-effectively separate carbon dioxide and other impurities from natural gas, and to discharge these contaminants as a high-pressure liquid stream ready for underground injection, either for enhanced oil recovery applications or for acid gas injection disposal.