Post Combustion Capture Using Membrane Processes

Membranes, for separation and absorption, are discussed as a CCS approach. In principle, more than 80% of the CO2 can be captured with this technique. After capture, the CO2 has to be purified and compressed up to > 74 bar for transport to designated storage sites. Up to now, such membranes are only available on very small or research scale. To reach indstrial application level a minimum of 10 years of extra research is expected.  Two basic membrane types are being considered for CO2 capture: gas separation and gas absorption membranes. The first group relies on the variations in physical and/or chemical interactions between different gases and the membrane material, with the intention to have one component pass through the membrane faster than another (thus driving the separation process). The second group, gas absorption membranes, are microporous solid membranes which act as contacting devices between gas flow and liquid flow. While flue gases flow on one side of a membrane, an absorptive liquid is used on the other side to selectively attract certain components. 

Development Status Products
Research
Cement, clinker

Post Combustion Capture Using Membrane ProcessesCosts & Benefits

Parent Process: Carbon Capture and Storage
Energy Savings Potential

Not available.

CO2 Emission Reduction Potential

EU flag More than 700 kg CO2/t-clinker can be reduced.

Costs

EU flag Specific costs are estimated to be €45–50/t CO2 for 2015 and €25/t CO2.

Post Combustion Capture Using Membrane Processes Publications

Development of State of the Art Techniques in Cement Manufacturing: Trying to Look Ahead

The report represents the independent research efforts of the European Cement Research Academy (ECRA) to identify, describe and evaluate technologies which may contribute to increase energy efficiency and to reduce greenhouse gas emissions from global cement production today as well as in the medium and long-term future. 

Page Number: 

93-94