{"title":"Ternary diffusion coefficients of monoethanolamine and N-methyldiethanolamine in aqueous solutions","authors":"Chih-Chiang Ko, Wen-Haur Chang, Meng-Hui Li","doi":"10.1016/j.jcice.2008.04.007","DOIUrl":null,"url":null,"abstract":"<div><p>Ternary diffusion coefficients of monoethanolamine (MEA) and <em>N</em>-methyldiethanolamine (MDEA) in aqueous solutions have been measured at 303.2, 313.2, and 323.2<!--> <!-->K. The systems studied are aqueous solutions containing total amine concentrations of 2.5 and 4.0<!--> <!-->kmol/m<sup>3</sup> and each solution prepared with four different amine molar ratios. The main diffusion coefficients (<em>D</em><sub>11</sub> and <em>D</em><sub>22</sub>) and cross-diffusion coefficients (<em>D</em><sub>12</sub> and <em>D</em><sub>21</sub>) and the density and viscosity of the aqueous amine solutions are discussed and analyzed as a function of temperature and their concentration.</p></div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2008.04.007","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Chinese Institute of Chemical Engineers","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0368165308001020","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
Ternary diffusion coefficients of monoethanolamine (MEA) and N-methyldiethanolamine (MDEA) in aqueous solutions have been measured at 303.2, 313.2, and 323.2 K. The systems studied are aqueous solutions containing total amine concentrations of 2.5 and 4.0 kmol/m3 and each solution prepared with four different amine molar ratios. The main diffusion coefficients (D11 and D22) and cross-diffusion coefficients (D12 and D21) and the density and viscosity of the aqueous amine solutions are discussed and analyzed as a function of temperature and their concentration.
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