Experimental validation of the maxwell-stefan theory for the description of liquid-side mass transfer in a binary mixture — ammonia absorption in water using a stirred cell

M.J.W. Frank, J.A.M. Kuipers, W.P.M. van Swaaij

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Abstract

The main goal of this paper is to demonstrate the validity of the Maxwell-Stefan theory for the description of liquid phase mass transport processes in a binary mixture. To critically test this theory absorption experiments of ammonia in water were conducted in a stirred cell. The flux model developed by Frank et al. (1995a) has been extended to a dynamic reactor model taking thermodynamic non-idealities and concentration and temperature dependent physical parameters into account. Calibration of the stirred cell was achieved on basis of carbon dioxide absorption experiments in water. By using the Maxwell-Stefan flux expressions instead of Fick's first law, and therefore accounting for the convective transport contributions, the deviation between theory and experiment reduces from 20-30% to 5-10%.
Original languageEnglish
Pages (from-to)2619-2624
Number of pages6
JournalChemical engineering science
Volume51
Issue number11
DOIs
Publication statusPublished - 1996

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