ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Diffusion and either surface or gas-phase reaction in a ternary ideal gas mixture in steady fully developed laminar flow in a tube is considered. The linearized equations valid near equilibrium and under isothermal conditions are solved. Concentration profiles predicted using a multicomponent diffusivity matrix are compared to those predicted using more approximate diffusivities. Local overshoots past equilibrium occur, but oscillations (with axial position) are not possible. A simplified diffusivity expression is found which predicts cup-mixing mole fractions in good agreement with those predicted using the multicomponent diffusivities.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690170225
