Controlling Mechanisms in the Catalytic Vapor-Phase Ethylation of Aniline

Goyal, Prakash; Doraiswamy, L. K.

doi:10.1021/i260033a005

Cited by 4 publications

(2 citation statements)

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“…also checked from a A P / P vs G plot (Figure 3) according to the method suggested by Ford and Perlmutter (1963) and Goyal and Doraiswamy (1970). also checked from a A P / P vs G plot (Figure 3) according to the method suggested by Ford and Perlmutter (1963) and Goyal and Doraiswamy (1970).…”

Section: 4 P a R T I C L E S I Z E D P X 1 0~mmentioning

confidence: 99%

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Initial rate study on the vapor‐phase condensation of aniline to diphenylamine

Das

Biswas

1986

Can J Chem Eng

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The vapor-phase condensation of aniline to diphenylamine has been studied in a downflow differential reactor at 370-426°C and under atmospheric pressure using H-151 ALCOA catalyst. An initial rate equation based on the Langmuir-Hinshelwood model, i.e. surface reaction control with a similar dual site mechanism, has been proposed:The effects of different mass transfer resistances, of longitudinal and of radial dispersion have been taken intoconsideration. The rate constant value at 404°C is I .488 X lo-' (k mol)/(s)(kg cat) 15.358 x and the activation energy is calculated to be 123.3 kJ/mol [29.45 k cal/mol] in the working temperature range. On a Ctudit la condensation en phase vapeur de I'aniline en diphtnylamine dans un rkacteur difftrentiel 21 tcoulement descendant, h 370-426°C et sous la pression atmosphtrique, h I'aide du catalyseur H-151 ALCOA. Une tquation pour la vitesse initiale baske sur le modkle de Langmuir-Hinshelwood, pour lequel la vitesse est contr616e par la rtaction de surface avec un mkcanisme impliquant deux sites similaires, est proposke: ro = ( k , K i p i J / ( l + K A P A~* Les effets des diffkrentes rksistances au transfert de matiere et ceux de la dispersion longitudinale et radiate, ont ktd. pris en considkration. La valeur de la constante de vitesse h 404°C est de 1,488 x to-' (k mol)/(s)(kg cat) [5,358 X (mol)/(h)(g cat)] et l'knergie d'activation calculke est de 123,3 W/mol[29,45 k cal/mol] dans la gamme des temp6ratures retenues.he vapor-phase condensation of aniline over solid cata-

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Section: 4 P a R T I C L E S I Z E D P X 1 0~mmentioning

confidence: 99%

“…Figure 4 -Effectiveness factor vs. particle size of the catalyst. also checked from a A P / P vs G plot (Figure 3) according to the method suggested by Ford and Perlmutter (1963) and Goyal and Doraiswamy (1970).…”

Section: 4 P a R T I C L E S I Z E D P X 1 0~mmentioning

confidence: 99%