Selection of Amine Amino Acids Salt Systems for CO₂ Capture

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• 作者：Arlinda F. Ciftja ; Ardi Hartono ; Hallvard F. Svendsen
• 关键词：amino acid ; carbamte ; NMR ; CO2 capture.
• 刊名：Energy Procedia
• 出版年：2013
• 出版时间：2013
• 年：2013
• 卷：37
• 期：Complete
• 页码：1597-1604
• 全文大小：697 K

文摘

Several amino acids including Glycine, L-Alanine, Taurine, Sarcosine, L-Serine, L-Proline, blended with monoethanolamine (MEA) in presence of different amounts of CO₂ were qualitatively and quantitatively studied by NMR spectroscopy. 1D and 2D NMR were employed to qualitatively determine the carbamate formation from the amine group of the amino acids. All species were identified and reported in this work. The preliminary quantitative ¹³C NMR have shown that the highest carbamate formation occurs in the loaded taurine -MEA system and the lowest in the loaded L-alanine - MEA system. In the present work, the complete neutralization of sarcosine with MEA did not occur because of the carbamate formation of the amine group of the MEA.