Time-Delay Determination of the Diffusion Coefficient in Porous Catalysts in the Absence of a Pressure Drop Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 1970, Volume: 11, Number: 2-2, Pages: 445-446 Pages count : 2 | ||
Tags | CATALYSTS--Porous | ||
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Abstract:
A method is described for determining diffusion coefficients under both steady- state and nonsteady- state conditions during a single experiment from the magnitudes of the diffusion counterfluxes through a catalyst tablet. The nonsteady- state diffusion coefficient is found by a time- delay method when steady- state concentrations are achieved in the fluxes. The absence of a pressure drop in the tablet, which is necessary for the usual application of the time- delay method, permits elimination of the viscous flow in macroscopic pores and the associated overestimates of the effective diffusion coefficient.
Cite:
Grachev G.A.
, Ione K.G.
, Barshev A.A.
Time-Delay Determination of the Diffusion Coefficient in Porous Catalysts in the Absence of a Pressure Drop
Kinetics and Catalysis. 1970. V.11. N2-2. P.445-446. Scopus РИНЦ
Time-Delay Determination of the Diffusion Coefficient in Porous Catalysts in the Absence of a Pressure Drop
Kinetics and Catalysis. 1970. V.11. N2-2. P.445-446. Scopus РИНЦ
Original:
Грачев Г.А.
, Ионе К.Г.
, Баршев А.А.
Определение коэффициента диффузии в пористых катализаторах методом «времени задержки» в отсутствие перепада давления
Кинетика и катализ. 1970. Т.11. №2. С.541-543. РИНЦ
Определение коэффициента диффузии в пористых катализаторах методом «времени задержки» в отсутствие перепада давления
Кинетика и катализ. 1970. Т.11. №2. С.541-543. РИНЦ
Dates:
Submitted: | Oct 2, 1969 |
Published print: | Mar 1, 1970 |
Identifiers:
Scopus | 2-s2.0-0014757532 |
Elibrary | 30609347 |