Kinetics of surface reactions in catalytic combustion

Marteney, P. J.; Kesten, A. S.

doi:10.1016/s0082-0784(81)80196-8

Cited by 13 publications

(5 citation statements)

References 2 publications

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“…As with the homogeneous reactions, the heterogeneous reactions can be of any order. In combustion, the modeling of heterogeneous reactions has been discussed by Harrison and Ernst (1978), Bruno et al (1983), Fakheri and Buckius (1983), and Marteney and Kesten (1981). Here we assume the earlier simple relation holds where "'i is constant and is given apriori.…”

Section: Local Volume-averaged Mass Conservation Equationmentioning

confidence: 99%

Principles of Heat Transfer in Porous Media

Kaviany

1991

Mechanical Engineering Series

827

752

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except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use of general descriptive names, trade names, trademarks, etc., in this publication, even if the former are not especially identified, is not to be taken as a sign that such names, as understood by the Trade Marks and Merchandise Marks Act, may accordingly be used freely by anyone.Camera-ready copy prepared from the author's LaTeX file. 987654321 To my parents Farideh and Morad Series PrefaceMechanical engineering, an engineering discipline born of the needs of the industrial revolution, is once again asked to do its substantial share in the call for in dust rial renewal. The general call is urgent as we face profound issues of productivity and competitiveness that require engineering solutions, among others. The Mechanical Engineering Series is a new series, featuring graduate texts and research monographs, intended to address the need for information in contemporary areas of mechanical engineering.The series is conceived as a comprehensive one that will cover a broad range of concentrations important to mechanical engineering graduate education and research. We are fortunate to have a distinguished roster of consulting editors, each an expert in one of the areas of concentration. The names of the consulting editors are listed on the first page of the volume. PrefaceThis monograph aims at providing, through integration of available theoretical and empirical treatments, the differential conservation equations and the associated constitutive equations required for the analysis of transport in porous media. Although the empirical treatment of fluid flow and heat transfer in porous media is over a century old, only in the last three decades has the transport in these heterogeneous systems been addressed in sufficient detail. So far, single-phase flow and heat transfer in porous media have been treated or at least formulated satisfactorily. But the subject of two-phase flow and the related he at transfer in porous media is still in its infancy. This monograph identifies the pr in ci pIes of transport in porous media, reviews the available rigorous treatments, and whenever possible compares the available predictions, based on these theoretical treatments of various transport mechanisms, with the existing experimental results. The theoretical treatment is based on the local volume-averaging of the momentum and energy equations with the closure conditions necessary for obtaining solutions. While emphasizing abasie understanding of heat transfer in porous media, the monograph does not ignore the need for the predictive tools. Therefore, whenever a rigorous theoretical treatment of a phenomenon is not available, semiempirical and empirical treatments are given.The monograph is divided into two parts: part 1 deals with single-phase flows and part 2...

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Section: Local Volume-averaged Mass Conservation Equationmentioning

confidence: 99%

Principles of Heat Transfer in Porous Media

Kaviany

1991

Mechanical Engineering Series

827

752

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“…It is convenient to characterize these efforts in terms of their description of the gas phase within the catalytic passage, that is, whether the channel is one-dimensional (relying on heat-and mass-transfer coefficient correlations), two-dimensional (assuming axisymmetry, parallel flat plates, or external boundary-layer flow), or three-dimensional (no spatial simplifications). These studies have included: one-dimensional considerations of single passageways (Votruba et al, 1975;Heck et al, 1976;Young and Finlayson, 1976a,b;Sinkule and HlavLcek, 1978;Finlayson and Young, 1979;Marteney and Kesten, 1981;T'ien, 1981a,b;Oh and Cavendish, 1982;Prasad et al, 1983;Ahn et al, 1986;Zygourakis, 1989;Bennet et al, 1992;Tien and T'ien, 1992;Montreuil et al, 1992;Groppi et al, 1993;O h and Bissett, 1993;Leighton and Chang, 1995), multiple passageways (Flytzani-Stephanopoulos et al, 1986;Chen et al, 1988;Kolaczkowski et al, 1988;Kolaczkowski and Worth, 19951, two-dimensional solutions for single passageways (Heck et al, 1976;Young and Finlayson, 1976a,b;Finlayson and Young, 1979;Bennet et al, 1992;Lee and Aris, 1977;Harrison and Ernst, 1978;Zygourakis and Ark, 1983;Bruno et al, 1983;Ryan et al, 1991;Hayes et al, 1992Hayes et al, , 1996Boehman et al, 1992;Hayes and Kolaczkowsi, 1994;Groppi et al, 1995;Frye and Boehman, 1996;Boehman et al, 1997a,b), exter...…”

Section: Introductionmentioning

confidence: 99%

Radiation heat transfer in catalytic monoliths

Boehman

1998

AIChE Journal

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“…(a) Chemical reaction rate Various attempts at measuring heterogeneous reaction rates within catalytic monoliths or single tubes coated with catalyst on the inside wall have been recorded in the literature. Marteney & Kesten (1981) studied the catalytic oxidation of carbon monoxide, and Bruno et al (1983) examined the catalytic oxidation of propane in monolith type configurations. Their approach was to use a mathematical model of the reactor to deduce indirectly or confirm an assumed chemical kinetic equation relating to the heterogeneous kinetics of oxidation.…”

Section: Resultsmentioning

confidence: 99%

An experimental and theoretical study of a catalytic monolith to control automobile exhaust emissions

Bennett

Hayes

Kolaczkowski

et al. 1992

Proc. R. Soc. Lond. A

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Experimental investigations of automobile exhaust emissions were examined by combusting a mixture of propane and air within a multi-channel monolith. Chemical kinetics, mass transfer and heat transfer effects were studied using appropriate temperature and flow conditions to separate the effects. The results were used to construct both a one- and two-dimensional mathematical model. Simulations of monolith behaviour were then compared with observed performance. First-order chemical kinetics were observed for the low hydrocarbon concentrations examined in the temperature range 557–648 K, while mass transfer limitation was apparent at temperatures between 736 K and 769 K. Perturbations to inlet concentration and temperature were effected while studying monolith performance, and the responses recorded. Computer simulations using the two mathematical models predicted correct trends, but did not agree quantitatively with the experimental results. The one-dimensional model predicts both concentration and temperature responses to a change in inlet conditions better than the more comprehensive two-dimensional model, even when heat losses are taken into account. This is because experimentally determined heat and mass transfer coefficients are used for computations relating to the one-dimensional model, whereas these parameters were calculated theoretically in the two-dimensional model. Further computer simulations revealed discontinuities in the values of Nusselt numbers, values depending on elapsed time following a step change in inlet conditions and axial position along the monolith channel. This unusual feature is accounted for by a reversal in heat transfer between wall and bulk fluid as the reaction develops along the monolith channel.

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Kinetics of surface reactions in catalytic combustion

Cited by 13 publications

References 2 publications

Principles of Heat Transfer in Porous Media

Principles of Heat Transfer in Porous Media

Radiation heat transfer in catalytic monoliths

An experimental and theoretical study of a catalytic monolith to control automobile exhaust emissions

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