Prediction and Analysis of Heterogeneous Catalysis Mechanisms by Pattern Recognition Methods with a Computer

Ioffe, I. I.; Dobrotvorskii, A. M.; Belozerskikh, V.A.

doi:10.1070/rc1983v052n03abeh002811

Cited by 5 publications

(6 citation statements)

References 3 publications

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“…Indeed, the physical meaning of a 0 is exactly n 0 . It is known, that the additivity rules for n and C either hold in a very narrow concentration range or do not hold at all for condensed systems [17].…”

Section: Resultsmentioning

confidence: 99%

Determination of the supersaturation in the LiIO3–HIO3–H2O system using a refractive index value at near saturation concentration

Lyutov

2009

Journal of Crystal Growth

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Section: Resultsmentioning

confidence: 99%

Determination of the supersaturation in the LiIO3–HIO3–H2O system using a refractive index value at near saturation concentration

Lyutov

2009

Journal of Crystal Growth

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“…Seminal selectivity and yield expressions for first order catalytic reactions A → B → C with diffusion limitations were obtained by Wheeler . His results have been extensively applied , and reproduced. − To motivate new contributions in the following sections, this section summarizes work by Wheeler and others. Aspects that are important, but not critical for our work, are described only briefly.…”

Section: Brief Review Of Previous Analysesmentioning

confidence: 97%

Secondary Effectiveness Factors and Solubility Effects for Catalytic Reactions in Series

Peters

2020

ACS Catal.

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Thiele moduli and effectiveness factors are powerful ways to account for mass transfer limitations on reactions occurring within porous catalyst particles. Effectiveness factors have been developed for numerous rate laws, geometries, and nonisothermal situations, but not for reactions in series. This manuscript develops an effectiveness factor for the second step in the A → B → C reaction sequence with first-order kinetics and slab geometry. The expressions are more complicated than the familiar primary effectiveness factors because the intermediate B is being generated and consumed within the catalyst particle. We illustrate the application of the secondary effectiveness factor by modeling the conversion from A to B and C for plug flow through a porous ceramic monolith catalyst. Then we modeled A → B → C in a slurry of catalyst flakes within a well-stirred batch reactor, including equilibrium solvent-molecular sieve partition coefficients for the A and B species. When both Thiele moduli are small and the molecular sieve adsorbs A more strongly than B, the second reaction is suppressed. This situation can give essentially 100% yield of B, even when A and B have similar reactivities within the catalyst. Our results provide a framework for predicting the effects of interior mass transfer limitations and solvent–solid phase partitioning in heterogeneously catalyzed series reactions.

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“…A few very basic reaction types will be analyzed following the interpretation of Ioffe et al [3]. Analytical treatment is available for simple reactions and as the complexity increases, numerical treatment becomes necessary.…”

Section: Internal Diffusion and Selectivitymentioning

confidence: 99%

Mass Transfer and Catalytic Reactions

Murzin

Salmi

2016

Catalytic Kinetics

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Prediction and Analysis of Heterogeneous Catalysis Mechanisms by Pattern Recognition Methods with a Computer

Cited by 5 publications

References 3 publications

Determination of the supersaturation in the LiIO3–HIO3–H2O system using a refractive index value at near saturation concentration

Determination of the supersaturation in the LiIO3–HIO3–H2O system using a refractive index value at near saturation concentration

Secondary Effectiveness Factors and Solubility Effects for Catalytic Reactions in Series

Mass Transfer and Catalytic Reactions

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