Time-Delay Determination of the Diffusion Coefficient in Porous Catalysts in the Absence of a Pressure Drop | Sciact - CRIS-system of Boreskov Institute of Catalysis

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

Output data

Year: 1970, Volume: 11, Number: 2-2, Pages: 445-446 Pages count : 2

Tags

CATALYSTS--Porous

Authors

Grachev G.A. ¹ , Ione K.G. ¹ , Barshev A.A. ¹

Affiliations

1	Institute of Catalysis, Siberian Branch of the Academy of Sciences of the USSR

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.

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

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 ANCAN

Submitted:	Oct 2, 1969
Published print:	Mar 1, 1970

Scopus:	2-s2.0-0014757532
Elibrary:	30609347

DB	Citing
Scopus	2
Elibrary	2