CHAPTER 8. Cost Competitive Membrane Processes for Carbon Capture

Abstract

Membrane gas separation has potential for wide scale implementation in CO2 capture, as part of the Carbon Capture and Storage (CCS) strategy proposed for climate change mitigation. CO2 selective membranes are commercially available and membrane processes for natural gas sweetening have been proven. The majority of CCS will be implemented on post-combustion scenarios, which is carbon capture from low pressure flue gas. This presents unique challenges to gas separation membranes, requiring process design strategies that generate a pressure ratio across the membrane for efficient separation, while minimising the energy duty of the process to ensure the economics are competitive. This chapter re..