Abstract
A diffusion bridge apparatus has been used to measure diffusivities for the gas pairs CO2−N2, CO2−Ar, and CH4−N2 at temperatures ranging from 300 to 1000 K. The apparatus measured effective diffusivities which were transformed into ordinary diffusivities after calibration with a gas pair (CO2−N2) of known diffusivity. The apparatus was also used to measure the viscosities of the four gases over the same temperature range. The results were compared with the predictions of the Chapman-Enskog correlation (ordinary diffusivities and viscosities) and predictions for diffusion rates in porous solids developed in Monte Carlo simulations. Additional experiments examined the effect of changing pore structure on the diffusivities of gases.
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K.A. Akanni, J.W. Evans, and I.S. Abramson.Chem. Eng. Sci., 1987, vol. 42, pp. 1945–54.
J.W. Evans, M.H. Abbasi, and A. Sarin:J. Chem. Phys., 1980, vol. 72, p. 2967.
Y. Nakano and J.W. Evans:J. Chem. Phys., 1983, vol. 78, p. 2568.
J.W. Evans, M.H. Abbasi, and I.S. Abramson:A. I. Ch. E. J., 1983, vol. 29, p. 617.
K.A. Akanni: Ph.D. Dissertation, University of California, Berkeley, CA, 1986.
T.R. Marrero: Ph.D. Thesis, University of Maryland, 1977.
G.C. Maitland and E.B. Smith:J. Chem. Eng. Data, 1972, vol. 17, no. 2, p. 150.
C.S. Ellis and J.N. Holsen:J. and E. C. Fundamentals, 1969, vol. 8, no. 4, p. 787.
B.A. Ivakin and P.E. Suetin:Soviet Physics—Technical Physics, 1964, vol. 9, no. 6, p. 866.
R.M. Fristrom and A.A. Westernberg:Flame Structure, 1965, McGraw-Hill, New York, NY, p. 259.
J.N. Holsen and M.S. Strunk:J. and E. C. Fundamentals, 1964, vol. 3, no. 2, p. 143.
C.R. Mueller and R.W. Cahill:J. Chem. Phys., 1964, vol. 40, p. 651.
J.O. Hirschfelder, C.F. Curtiss, and R.B. Bird:The Molecular Theory of Gases and Liquids, John Wiley and Sons, Inc., New York, NY, 1954.
A.A. Clifford, P. Gray, and N. Platts:J. Chem. Soc. Faraday Trans. I, 1977, vol. 73, p. 381.
A.E. Sherwood and J.M. Prausnitz:J. Chem. Phys., 1964, vol. 41, p. 429.
J. Kestin, W. Wakeham, and K. Watanabe:J. Chem. Phys., 1970, vol. 53, no. 10, p. 3773.
F.A.L. Dullien:Porous Media, Academic Press, 1979, p. 226.
P.B. Weisz and A.B. Schwartz:J. Catalysis, 1962, vol. 1, p. 399.
N. Wakao and J.W. Smith:Chem. Eng. Sci., 1962, vol. 17, p. 825.
H.L. Weissberg:J. Applied Physics, 1963, vol. 34, no. 9, p. 2636.
Lord Rayleigh:Phil. Mag., 1892, vol. 34, p. 481.
J.C. Maxwell:Electricity and Magnetism, 2nd ed. Clarendon Press, Oxford, 1892, p. 435.
D.A.G. Bruggeman:Ann. Physik, 1935, vol. 24, p. 636.
S. Prager:Physica, 1963, vol. 29, p. 129.
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This paper is based on a presentation made in the T.B. King Memorial Symposium on “Physical Chemistry in Metals Processing” presented at the Annual Meeting of The Metallurgical Society, Denver, CO, February, 1987, under the auspices of the Physical Chemistry Committee and the PTD/ISS.
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Li, B.Q., Evans, J.W. Diffusivities and viscosities of some gases at elevated temperatures: Gas diffusivities in porous solids. Metall Trans B 20, 141–148 (1989). https://doi.org/10.1007/BF02825595
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DOI: https://doi.org/10.1007/BF02825595