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
✍ Scribed by M.J.W. Frank; J.A.M. Kuipers; W.P.M. Van Swaaij
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 477 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
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 thenmedynarnic 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%.