(120b) Novel Membrane System Designs to Enable Energy and Capital Efficient Carbon Capture
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, March 15, 2023 - 8:25am to 8:50am
Given the nature of flue gas streams, CMS chose to develop a membrane with active transport mechanism to ensure the membraneâs performance at low pressure, elevated temperature, and in the presence of contaminants. This gives more flux and footprint than alternate membrane solutions and delivers practical, operational systems for carbon capture applications for less than <$50/ton. This talk will cover the performance of the membrane within the planned operating window including temperature, pressure, CO2 concentration, and stage cut. Special attention will be given to the behavior of the membrane at elevated temperature (>50Â°C). Initial stability data with SOx, NOx, and CO will also be examined.
While the membrane itself provides the technical unlock for viability in post combustion flue gas conditions, the system design ensures economic operation. CMS has developed a model to iterate through potential designs and minimize for a given parameter like CAPEX, annual cost of capture or electricity use. This talk will explore the sensitivities of the optimal membrane design based on CO2 feed concentration and electricity price for hard to abate emissions like cement and steel flue gas.