CO2 Recovery (Ryan Holmes)
Originally developed in the 1970’s, Ryan-Holmes is a Chart licensed process for the recovery of CO2 from natural gas streams. Because it is particularly suited to gas streams containing high concentrations of CO2 (▸50%) present day processing techniques and environmental concerns point towards a rebirth for this low pressure distillative approach.
- Enhanced Oilfield Recovery (EOR) – CO2 injected into an oil field for enhanced recovery can contaminate the resultant sales gas by up to 90% and has to be recovered. Ryan Holmes provides a way to both remove the CO2 and make it available for re-use thereby eliminating the environmental impact and reducing the requirement to purchase additional CO2.
- Naturally occurring high CO2 content gas fields.
- Natural Gas Liquids recovery – where secondary markets exist Ryan Holmes allows for an additional process step to remove the higher value natural gas liquids from the methane.
- Potential for use in carbon capture and CO2 sequestration applications.
- Results in pipeline ready or LNG quality gas.
- Suitable for a wide range of operating conditions – a wide range of differing gas flows and compositions will occur throughout the life-cycle of an EOR project.
- Utilises conventional, stick built, carbon-steel distillative equipment.
- Additional (NGL) Natural Gas Liquids recovery potential.
- Requires no solvents or external chemicals.
Cost Effective Solution
- Carbon-steel equipment can be manufactured in low cost economic zones.
- Chart provides a comprehensive design package and receives a one-off license fee based upon the volume of CO2 recovered.