INVESTIGADORES
MAZZA German Delfor
artículos
Título:
A supporting formulation for introducing gas-liquid reactions
Autor/es:
C. D. LUZI; S. P. BRESSA; G. D. MAZZA; G. F. BARRETO
Revista:
EDUCATION FOR CHEMICAL ENGINEERS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 9 p. 50 - 66
ISSN:
1749-7728
Resumen:
tIn spite of the widespread industrial application of non-catalytic or homogeneously catalyzed gas?liquid reactions(GLRs), many undergraduate chemical engineering curricula do not include this subject and heterogeneous catalysisprovides the only example of a heterogeneous chemical reaction system.Textbooks dealing with GLRs describe and formulate separately the different processes affecting the rate of chemi-cal absorption, without providing a clear picture of the overall problem, which is highly desirable for the identificationof effects and understanding of their interplay.As an attempt to provide a different alternative for teaching GLRs, a general approximate formulation for thetransport/reaction problem, in terms of a global enhancement factor (GEF) for a single chemically absorbed species,including all possible effects on the basis of the two-film model is presented here.This contribution includes the development of the approximation for the GEF, an analysis of different regimes,which in part can be directly adopted for teaching, and an evaluation of the precision of the GEF estimation, mainlydevoted to the lecturer. © 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.