Gravitational stability of Taylor dispersion profiles. Revised diffusion coefficients for barium chloride-potassium chloride-water

1993 ◽  
Vol 97 (7) ◽  
pp. 1464-1469 ◽  
Author(s):  
Derek G. Leaist ◽  
Ling Hao
Keyword(s):  
Potassium Chloride ◽  
Diffusion Coefficients ◽  
Barium Chloride ◽  
Taylor Dispersion ◽  
Chloride Water ◽  
Gravitational Stability

scholarly journals Diffusion Coefficients of Methane in Methylbenzene and Heptane at Temperatures between 323 K and 398 K at Pressures up to 65 MPa

2020 ◽  
Vol 41 (8) ◽  
Author(s):  
Malyanah Binti Mohd Taib ◽  
J. P. Martin Trusler
Keyword(s):  
Diffusion Coefficients ◽  
Infinite Dilution ◽  
Hydrodynamic Radius ◽  
Taylor Dispersion ◽  
Relative Uncertainty ◽  
Dispersion Method ◽  
Solvent Density ◽  
Einstein Model ◽  
Taylor Dispersion Method ◽  
Simple Empirical Model

Abstract We reported experimental measurements of the diffusion coefficient of methane at effectively infinite dilution in methylbenzene and in heptane at temperatures ranging from (323 to 398) K and at pressures up to 65 MPa. The Taylor dispersion method was used and the overall combined standard relative uncertainty was 2.3%. The experimental diffusion coefficients were correlated with a simple empirical model as well as the Stokes–Einstein model with the effective hydrodynamic radius of methane depending linearly upon the solvent density. The new data address key gaps in the literature and may facilitate the development of an improved predictive model for the diffusion coefficients of dilute gaseous solutes in hydrocarbon liquids.

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