Effect of mass transfer coefficient on the elution profile in nonlinear chromatography

Journal Article · Thu Apr 20 04:00:00 EDT 1989 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100345a095· OSTI ID:5040355

Lin, Bingchang; Golshan-Shirazi, S; Guiochon, G ^[1]

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1. Univ. of Tennessee, Knoxville (USA)

The kinetic model of chromatography includes a mass balance equation and a mass transfer rate equation. A numerical analysis of the system of partial differential equations obtained is presented, and the characteristics of the finite difference method used to solve it are described. The results obtained are discussed, and the influence of the value of the mass transfer coefficient on the chromatographic elution profile is analyzed. In the limit case of linear chromatography (linear equilibrium isotherm), the result is very similar to the result obtained from the solution of the ideal nonequilibrium equation. In the other limit case, at large values of the rate constant, the result is very similar to the one obtained by solving numerically the equations of nonlinear equilibrium chromatography.

• OSTI ID: 5040355
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 93:8; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHROMATOGRAPHY
DATA
DIFFERENTIAL EQUATIONS
ELUTRIATION
EQUATIONS
FINITE DIFFERENCE METHOD
INFORMATION
ITERATIVE METHODS
MASS BALANCE
MASS TRANSFER
MATHEMATICAL MODELS
NONLINEAR PROBLEMS
NUMERICAL DATA
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
SEPARATION PROCESSES
THEORETICAL DATA