Kinetics of gas‐liquid reactions part I. General theory

Krevelen, D.W. Van; Hoftijzer, P. J.

doi:10.1002/recl.19480670708

Cited by 346 publications

(125 citation statements)

References 2 publications

Supporting

Mentioning

118

Contrasting

Unclassified

Order By: Relevance

“…Van Krevelen and Hoftijzer (20) presented an approximate solution to the film theory and Peaceman ( 1 3 ) proved that this approximation deviates from the true film-theory solution by no more than 8%. For a graphical representation of Equation (16) and a discussion of the various limiting regions reference (9) may be consulted.…”

Section: A1che Journalmentioning

confidence: 97%

Penetration theory for gas absorption accompanied by a second order chemical reaction

1961

View full text Add to dashboard Cite

The penetration-theory solution for the effect of a second-order irreversible liquid-phase chemical reaction on the rate of gas absorption has been computed numerically on an IBM-704 computer. A linearized, time-centered, implicit finite-difference method was used to solve the nonlinear partial-differential equations. The method was very effective, permitting the solution of the equations for a wide range of the parameters of interest. The penetration-theory results are compared with the film-theory solution, and it is shown that the sdutions to the two theories agree within 16% i f they are compared for conditions which produce the same asymptotic solution for a n infinitely rapid chemical reaction. A simplified equation and some correction charts are presented which permit a rapid, accurate estimation of the penetration-theory s2lution over a wide range of variables.The problem of predicting the effect of a simultaneous liquid-phase chemical reaction on the rate of gas absorption has often been approached by adopting a simplified model of the liquid flow pattern which could then be treated mathematically. In the years since Hatta (11) first used the filmtheory model to analyze the effect of an infinitely rapid, irreversibIe bi-molecular reaction, a number of types of chemical reaction have been treated from the viewpoints of the film-theory and the penetration-theory models. The use of these two models to analyze the effect of a simultaneous chemical reaction on the rate of gas absorption is reviewed by Sherwood and Pigford ( 1 8 ) .One interesting aspect of this problem is that it is often found that the predicted answer is surprisingly insensitive to the liquid flow pattern model that is chosen. This was pointed out by Peaceman ( I s ) , who compared the film-and penetration-theory solutions for several kinds of chemical reactions and found that they were in close agreement. Furthermore several recent publications have considered the effect of an infinitely rapid bimolecular reaction on the rate of mass transfer from a solid surface to a fluid stream, and results for laminar and turbulent boundary-layer models show surprising agreement with film and penetration theory results (3, 8,15,19).It is the purpose of this paper to present a solution to the penetrationtheory equations for gas absorption accompanied by a second-order chemical reaction of finite rate and to com- J. F. Hurley is at Dewey and Almy ChemicalCompany, Cambridge, Massachusetts. Page 226pare this solution with the film-theory solution. T H E SECOND-ORDER R E A C T I O NThe problem to be considered is that in which a gaseous species A dissolves into the liquid phase [Equation ( 1 ) ] and then reacts irreversibly with species B according to Equation ( 2 ) :A,,, + B,,, + products irreversibly ( 2 )Species 3 is a nonvolatile solute which has been dissolved into the liquid phase prior to its introduction into the gas absorber. It is assumed that gasphase resistance to absorption is negligible, and thus the concentration of species A at the gas-liqui...

show abstract

Section: A1che Journalmentioning

confidence: 97%

Penetration theory for gas absorption accompanied by a second order chemical reaction

1961

View full text Add to dashboard Cite

show abstract

“…The theory for one-dimensional absorption from a gas into an infinite liquid with constant solute concentration at the gas-liquid interface (van Krevelen and Howtijzer [18]; Danckwerts [19]; Gilliland et al [20]; Brian et al [21], Danckwerts [22]) has provided considerable insight into the process of chemical absorption.…”

Section: Theorymentioning

confidence: 99%

CO2 absorption using diethanolamine-water solutions in a rotating spiral contactor

MacInnes

Ayash

Dowson

2017

Chemical Engineering Journal

View full text Add to dashboard Cite

Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

“…The advantage of using models of the absorption process to facilitate the mathematical analysis of the effect of a liquid phase chemical reaction upon the rate of gas absorption has been discussed by a number of investigators (3, 5, 6,8,13,15). In this study the penetration-theory model was chosen because it is a fairly accurate description of the absorption process in a short wetted-wall column (6, 1 6 ) .…”

Section: Theorymentioning

confidence: 99%

The effect of the hydrolysis reaction upon the rate of absorption of chlorine into water

Brian¹,

Vivian²,

Habib³

1962

AIChE Journal

View full text Add to dashboard Cite

The rate of absorption of chlorine into water was studied in a short wetted-wall column. This absorption system is characterized by a liquid phase chemical reaction occurring simultaneously with the absorption process, and thus the absorption coefficient is greater than in the case of physical absorption.The ratio of the absorption coefficient accompanied by the hydrolysis reaction to the physical absorption coefficient varied from 1.3 to 3, depending on the chlorine partial pressure and the liquid flow rate. Penetration-theory solutions for absorption accompanied by the hydrolysis reaction were obtained by the use of an IBM-709 digital computer. Excellent agreement between the experimental and computed results was obtained on the assumption that the forward rate constant for the hydrolysis reaction was 13.7 set.? a t 25'C. This value compared favorably with the published results of kinetic studies of the hydrolysis reaction.

show abstract

Kinetics of gas‐liquid reactions part I. General theory

Cited by 346 publications

References 2 publications

Penetration theory for gas absorption accompanied by a second order chemical reaction

Penetration theory for gas absorption accompanied by a second order chemical reaction

CO2 absorption using diethanolamine-water solutions in a rotating spiral contactor

The effect of the hydrolysis reaction upon the rate of absorption of chlorine into water

Contact Info

Product

Resources

About