Diffusion coefficients and viscosities of CO{sub 2} + H{sub 2}O, CO{sub 2} + CH{sub 3}OH, NH{sub 3} + H{sub 2}O, and NH{sub 3} + CH{sub 3}OH liquid mixtures
- Twente Univ., Enschede (Netherlands). Dept. of Chemical Engineering
To evaluate quantitatively the results of gas-liquid absorption experiments, accurate liquid-phase diffusion coefficients and viscosities are needed. In this paper experimental values of these quantities will be reported for the binary systems carbon dioxide + water, carbon dioxide + methanol, ammonia + water, and ammonia + methanol. The diffusion coefficients have been measured using the Taylor-Aris dispersion method, and the viscosities have been measured with a falling ball viscometer at temperatures from 293 to 333 K. The ammonia mole fraction ranged from 0 to 0.312. The results have been correlated using Arrhenius-type equations and have been compared with literature data, where available. Furthermore, the measured diffusion coefficients are compared with values predicted by the modified Stokes-Einstein equation and the Wilke-Chang equation.
- OSTI ID:
- 228031
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 41, Issue 2; Other Information: PBD: Mar-Apr 1996
- Country of Publication:
- United States
- Language:
- English
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