Pre-Combustion CO2 Emissions Control
Novel Membranes for CO2 Removal
Project No.: R&D 047
As the stabilization of CO2 concentrations in the atmosphere becomes increasingly
important, the capture and sequestration of CO2 emissions from advance power generation systems will become a necessity. In the current carbon sequestration concept, separation and capture represent the greatest expense in the overall capture
and storage process. Improvements in capture and separation have the greatest potential to affect the cost of CO2 mitigation, and membrane technology holds significant promise in this area.
NETL's Office of Research and Development is conducting research aimed at developing robust membranes capable of selective CO2 removal in reducing environments, such as those found in integrated gasification combined cycle (IGCC) power plant fuel gas streams or natural gas sweetening (NGS).
|In facilitated transport diffusion, the CO2 dissolves into the membrane, reacts with the ionic liquid
to form a complex, diffuses across the membrane, decomplexes, then desorbs into the gas phase.