Vacuum assisted acidification: A novel, robust and accurate technique for the measurement of CO2 loading in solvents and its application in post combustion capture

摘要

A method for measuring the CO2 loading of post combustion capture solvents has been developed which first separates CO2 from the solvent by acidification of the solvent under vacuum conditions, then traps the CO2 via deposition, and finally quantifies the CO2 by pressure measurement in a calibrated volume. A preliminary comparative assessment shows that the measurement accuracy and precision of the method compares favorably to other methods currently used at post combustion capture research facilities and that there is potential for continuing development of the method for use in industrial field applications.