Polyvinylamine-Based Facilitated Transport Membranes for Post-Combustion CO<sub>2</sub> Capture: Challenges and Perspectives from Materials to Processes

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Engineering

2021, Volume 7, Issue 1, Pages 124-131

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Polyvinylamine-Based Facilitated Transport Membranes for Post-Combustion CO₂ Capture: Challenges and Perspectives from Materials to Processes

10.1016/j.eng.2020.11.001

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Abstract

Carbon dioxide (CO₂) capture by gas-separation membranes has become increasingly attractive due to its high energy efficiency, relatively low cost, and environmental impact. Polyvinylamine (PVAm)-based facilitated transport (FT) membranes were developed in the last decade for CO₂ capture. This work discusses the challenges of applying PVAm-based FT membranes from materials to processes for postcombustion CO₂ capture in power plants and cement factories. Experiences learned from a pilot demonstration system can be used to guide the design of other membranes for CO₂ capture. The importance of module and process design is emphasized in the achievement of a high-performance membrane system. Moreover, the results from process simulation and cost estimation indicate that a three-stage membrane system is feasible for achieving a high CO₂ purity of 95 vol%. The specific CO₂ capture cost was found to significantly depend on the required CO₂ capture ratio, and a moderate CO₂ capture ratio of 50% presented a cost of 63.7 USD per tonne CO₂ captured. Thus, FT membrane systems were found to be more competitive for partial CO₂ capture.

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Facilitated transport membranes ; Flue gas ; Hollow fiber ; CO₂ capture ; Process simulation

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Polyvinylamine-Based Facilitated Transport Membranes for Post-Combustion CO₂ Capture: Challenges and Perspectives from Materials to Processes

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Figures(5)

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Polyvinylamine-Based Facilitated Transport Membranes for Post-Combustion CO2 Capture: Challenges and Perspectives from Materials to Processes

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Polyvinylamine-Based Facilitated Transport Membranes for Post-Combustion CO₂ Capture: Challenges and Perspectives from Materials to Processes