Advanced Membranes and Learning Scale Required for Cost-Effective Post-combustion Carbon Capture

Area of Science:

• Materials Science
• Chemical Engineering
• Environmental Science

Background:

• Post-combustion carbon capture is crucial for mitigating climate change.
• Current technologies, like amine scrubbing, face cost and efficiency challenges.
• Advanced membrane technology offers a promising alternative for CO2 separation.

Purpose of the Study:

• To define target membrane properties for cost-effective carbon capture.
• To project the market scale required for commercializing advanced membrane technology.
• To analyze the techno-economic feasibility of new-generation membrane materials.

Main Methods:

• Plant-level techno-economic analysis to determine critical membrane performance metrics.
• Integration of learning curves with techno-economic models to assess commercialization pathways.
• Evaluation of CO2 permeance and CO2/N2 selectivity targets based on cost.

Main Results:

• Membranes need >2,250 GPU permeance and >30 selectivity for cost-competitiveness.
• Installed prices below $50/m2 are achievable with these performance targets.
• Over 10 GW of cumulative installed capacity is estimated for technology evolution.

Conclusions:

• Advanced membrane technology can be competitive with established carbon capture methods.
• Significant research, development, and policy support are needed for commercialization.
• Targeted material properties and market growth are key drivers for success.