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Effectiveness factors in gas‐liquid reactions
Author(s) -
Kulkarni B. D.,
Doraiswamy L. K.
Publication year - 1975
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690210311
Subject(s) - isothermal process , limiting , thermodynamics , chemistry , simple (philosophy) , boundary value problem , order of reaction , mathematics , kinetics , physics , mathematical analysis , classical mechanics , engineering , reaction rate constant , mechanical engineering , philosophy , epistemology
The concept of the effectiveness, factor, commonly used as a means of accounting for diffusional effects in gas‐solid catalytic and noncatalytic reactions, is extended to gas‐liquid reactions. The relevant differential equations for an isothermal system with appropriate boundary conditions are solved for the case of (1) a simple first‐order irreversible reaction, (2) a consecutive reaction, and (3) a parallel reaction. The results are presented in terms of effectiveness factor plots, and methods of delineating the controlling regimes are discussed. It is shown that gas‐liquid reactions represent perhaps the most general case which reduces to gas‐solid reactions under appropriate limiting conditions.