Enhancement factors for gas absorption with reversible reaction
1982; Elsevier BV; Volume: 37; Issue: 10 Linguagem: Inglês
10.1016/0009-2509(82)80005-5
ISSN1873-4405
Autores Tópico(s)nanoparticles nucleation surface interactions
ResumoAn approximate analytical expression is derived for the enhancement factor for absorption with a reversible chemical reaction which is second-order in each direction, with corresponding stoichiometry and equal diffusivities of reactants, using the Danckwerts model of mass transfer. The result agrees with simpler limiting expressions for the enhancement factors for irreversible reactions, reactions slow enough to give negligible depletion of reactants, and instantaneous reactions. The result agrees satisfactorily with the available corresponding data for numerical solutions of the differential equations for the Higbie model, with the exception of one case, where the deviation is probably due to an error in the numerical solution, or its graphical representation. No numerical solutions are available for comparison when concentrations of solute and reaction products in the bulk of the liquid are appreciable. The method seems applicable also to more complex kinetics.
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