Carbon Dioxide Capture from Flue Gas Using Dry Regenerable Sorbents
Project # 43089

Primary Performing Organization:
RTI International (trade name of Research Triangle Institute)

This project has the potential to provide fossil-fuel fired power plants with an economical, dry, regenerable sorbent-based process to remove carbon dioxide (CO₂) from flue gas. In this process, the novel sorbent material (based on sodium carbonate) first captures CO₂ at the temperature of the flue gas exhaust.  The sorbent is then regenerated at modest temperatures (~120°C) to yield a concentrated stream of CO₂ for sequestration or other use.  The regenerated sorbent is recycled to the absorption step for subsequentl CO₂ capture. See schematic of system.

The objectives of the project are to develop a CO₂ capture technology that is:

• Applicable to both coal- and natural gas-fired power plants;
• Applicable as a retrofit to existing plants, as well as to new power plants;
• Compatible with operating conditions in all power plant configurations;
• Relatively simple to operate; and
• Less expensive than currently available technologies.

In sum, the project goal is to develop and demonstrate a simple, inexpensive, sorbent-based process to separate CO₂ as an essentially pure stream from a fossil fuel combustion system.

Contact:
Project Manager: Jose D. Figueroa, jose.figueroa@netl.doe.gov

Related Papers and Publications:

• Dry Regenerable Sorbents Fact Sheet [PDF]