Geologic Carbon Sequestration Program Education & Outreach
What is Carbon Capture and Storage (CCS)?
Geological storage is a four-step process:
first, a pure or nearly pure stream of CO2 is captured from flue gas or other process stream;
next it is compressed to about 100 atmospheres;
it is then transported by pipeline to the injection site;
and finally, it is injected deep underground into a geological formation such as an oil and gas reservoir where it can be safely stored for thousands of years or longer.