Performance of Single-Component CO2-Binding Organic Liquids (CO2BOLs) For Post Combustion CO2 Capture
2011
Abstract We report the performance of multiple CO 2 binding organic liquids (CO 2 BOLs) as solvent systems for post combustion gas capture. Alkanolguanidines and alkanolamidines are single component CO 2 BOLs that reversibly bind CO 2 chemically as liquid zwitterionic amidinium/guanidinium alkylcarbonates. Select alkanolguanidines/alkanolamidines and guanidine/alcohol mixtures were tested for CO 2 capacity and solvent lifetime. Solvent performance of these three CO 2 BOLs was assessed by batchwise CO 2 uptake and release over multiple cycles. We report each CO 2 BOL's activity and solvent durability with and without water.
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