Non-isothermal enhancement factor for mass transfer with instantaneous reaction in a rigid drop
TL;DR: In this paper, a theoretical analysis of the problem under non-isothermal conditions by considering the continuous phase diffusional resistance is presented, and the results show enhancement factor and interfacial temperature rise maxima and some other interesting features that can be explained on a physical basis.
About: This article is published in Chemical Engineering Journal.The article was published on 1993-04-01. It has received None citations till now. The article focuses on the topics: Drop (liquid) & Mass transfer.
References
More filters
TL;DR: In this paper, the film theory for gas absorption with chemical reaction has been extended to take into account the release of heat due to solution and reaction, and the analysis is applied to the industrially significant sulfur trioxide-dodecylbenzene system.
Abstract: The film theory for gas absorption with chemical reaction has been extended to take into account the release of heat due to solution and reaction. The analysis is applied to the industrially significant sulfur trioxide-dodecylbenzene system, and large increases in interface temperature are predicted during absorption. The enhancement factor behavior is correspondingly complex owing to the interaction of solubility reduction and rate constant enlargement. Some initial experimental measurements with the laminar jet technique confirm the need for and the basic soundness of the theory.
45 citations
TL;DR: In this paper, the authors analyzed the temperature rise at a gas-liquid interface due to heat evolution and the relevant enhancement factor for gas absorption rate for absorption, with an instantaneous irreversible reaction and with a first-order irreversible reaction allowing for the temperature dependence of the major physicochemical properties.
Abstract: The temperature rise at a gas-liquid interface due to heat evolution and the relevant enhancement factor for gas absorption rate are analyzed for absorption, with an instantaneous irreversible reaction and with a first-order irreversible reaction allowing for the temperature dependence of the major physicochemical properties. The analysis reveals that, unlike isothermal absorption, the film theory solutions with the replacement of any system parameters do not give a reasonable approximation to the realistic penetration theory solution, except in the case of the physical absorption regime. However, the modified Danckwerts analysis, in which the physicochemical properties are evaluated at the time-averaged interface temperature, is shown to be useful in obtaining the approximate penetration theory solutions with satisfactory accuracy.
19 citations
11 citations
TL;DR: In this article, the authors model the problem of temperature and absorbption of a gaz using an ici-mathematique approach and model the facteur d'accroissement de temperature a l'interface.
9 citations
TL;DR: In this paper, a film-theory model for exothermic gas absorption with chemical reaction, taking into consideration the effect of surface resistance, is presented, which is based on the same model as ours.
9 citations