Journal
JOURNAL OF CHEMICAL AND ENGINEERING DATA
Volume 61, Issue 7, Pages 2391-2398Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jced.6b00013
Keywords
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Funding
- National Natural Science Foundation of China [21206029]
- Hebei Provincial Natural Science Foundation for Distinguished Young Scholars of China [B2015208067]
- Hebei Provincial Science and Technology Research Project of College and University [QN2015070]
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Aqueous amino acid salt (AAS) solutions could be attractive absorbents for CO2 removal from flue gases. Density, viscosity, and solubility of N2O in aqueous potassium salts of lysine, histidine, and arginine were measured over the temperature range from (293 to 353) K and molality concentration range from (0.26 to 3.6) mol.kg(-1). Experimental results were correlated well with empirical correlations. The ion specific parameters (h(AA)-), based on the Weisenberger and Schumpe model, were fitted using the solubility data of N2O in the aforementioned AAS systems, valid up to 328 K. The models using temperature dependence of h(AA)- predict well within 2.5% AAD. The physical solubility of CO2 in the aqueous AAS solutions was also estimated.
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