Carbon dioxide (CO2) capture and separation is believed to be important for carbon management in the environment. There exist many amino acids (AAs) in biological systems (e.g. proteins for CO2 transport), and AA-based dry sorbents potentially have excellent thermal and chemical stability, negligible volatility, excellent biocompatibility, and comparable or even superior CO2 capture capacities (compared to those of monoethanolamine or MEA). In this study, AA dry sorbents were, for the first time, developed for CO2 capture. The complex of AAs and polymers (e.g. surfactants) substantially improved AA solubility and CO2 capture capacity. The developed AA solid sorbents are expected to have reduced amine loss and oxidative degradation compared to other current amine-based solid sorbents, and to have substantially less energy required for regeneration compared to MEA scrubbing.

Amino acid and amino acid-complex based solid sorbents for CO<sub>2</sub> capture

245th National Meeting (2013)

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Amino acid and amino acid-complex based solid sorbents for CO2 capture

Amino acid and amino acid-complex based solid sorbents for CO₂ capture