Thermodynamic modelling of carbon dioxide solubility in aqueous amino acid salt solutions and their blends with alkanolamines
作者： Humbul Suleman , Abdulhalim Shah Maulud , Afaf Syalsabila
DOI: 10.1016/J.JCOU.2018.05.014
关键词:
摘要: Abstract In this study, two thermodynamic approaches, namely explicit model and modified Kent-Eisenberg are presented for the accurate determination of carbon dioxide solubility in aqueous solutions amino acid salts with different levels complexity. Both models were further extended to correlation blends alkanolamines. Firstly, consists a single mathematical equation. Its structure is computationally simple derived from equilibrium thermodynamics theory. Secondly, utilizes detailed reaction mechanism development polynomial equation, that solved by combining all non-idealities correction factors. suitably determined loaded salt their The results good agreement experimental data representative (potassium and/or sodium lysine, glycine, proline, sarcosine, serine, threonine, alanine, phenylalanine, amino-butyric acid, glutamine asparagine) alkanolamines (2-amino-2-methyl-1-propanol piperazine) range process parameters. For solutions, AARE% was 13.85% 13.84%, respectively. alkanolamine 18.25% 17.25%, use small number adjustable This indicates generated parameters able accurately predict at other conditions, minimum computational intricacy.
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