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Abstract

The study addresses two groups of issues occurring in modeling and experimental studies of multicomponent nonisobaric diffusion in macroporous materials. The dynamics of such processes is described in terms of systems of nonlinear partial differential equations. A method of orthogonal collocation for resolving the equations is proposed and compared with the method of lines. The second group of problems presented involves numerical simulations of diffusion in aWicke–Kallenbach diffusion cell. Such an apparatus is used in experimental studies. Particular attention is paid to diffusion in a cell closed from both sides. This is an analogue of the Duncan–Toor experiment. The effect of the number of diffusing components and their initial concentrations on the dynamics of diffusion in binary and ternary solution was studied. Hitherto unknown dynamic properties of such processes were detected and discussed.
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Bibliography

Arnold K.R., Toor H.L., 1967. Unsteady diffusion in ternary gas mixtures. AIChE J., 13, 909–914. DOI: 10.1002/aic.690130518.
Arnošt D., Schneider P., 1995. Dynamic transport of multicomponent mixtures of gases in porous solids. Chem. Eng. J., 57, 91–99. DOI: 10.1016/0923-0467(94)02900-8.
Boron D., 2020. Izobaryczna metoda stacjonarna wyznaczania współczynników dyfuzji w materiałach porowatych. Przem. Chem., 99, 785–788. DOI: 10.15199/62.2020.5.21.
Boron D., Tabis B., 2020. Udział i znaczenie przepływu lepkiego w nieizobarycznej dyfuzji gazów przez materiały porowate. Przem. Chem., 99, 1717–1716. DOI: 10.15199/62.2020.12.4.
Duncan J.B., Toor H.L., 1962. An experimental study of three component gas diffusion. AIChE J., 8, 38–41. DOI: 10.1002/aic.690080112.
Finlayson B.A., 1972. The method of weighted residuals and variational principles. Academic Press, New York. DOI: 10.1137/1.9781611973242.
Gear C.W., 1971. Numerical initial value problems in ordinary differential equations. Prentice-Hall, Englewood Cliffs, New Jersey.
Ho C.K., Webb S.W. (Eds.), 2006. Gas transport in porous media. Springer, Netherlands. DOI: 10.1007/1-4020-3962-X.
Krishna R., Wesseling J.A., 1997. The Maxwell–Stefan approach to mass transfer. Chem. Eng. Sci., 52, 861–911. DOI: 10.1016/S0009-2509(96)00458-7.
Mason E.A., Malinauskas A.P., 1983. Gas transport in porous media: The dusty gas model. Elsevier, Amsterdam.
Remick R.R., Geankoplis C.J., 1970. Numerical study of three-component gaseous diffusion equations in transition region between Knudsen and molecular diffusion. Ind. Eng. Chem. Fundam., 9, 206–210. DOI: 10.1021/i160034a003.
Remick R.R., Geankoplis C.J., 1974. Ternary diffusion of gases in capillaries in the transition region between Knudsen and molecular diffusion. Chem. Eng. Sci., 29, 1447–1455. DOI: 10.1016/0009-2509(74)80169-7.
Schiesser W.E., 1991. Numerical methods of lines integration of partial differential equations. Academic Press, San Diego.
Tabis B., Bizon K. 2020. Opracowanie metody linii do całkowania dynamiki dyfuzji wieloskładnikowej w materiałach makroporowatych. Prace Katedry Inzynierii Chemicznej i Procesowej Politechniki Krakowskiej.
Tabis B., Bizon K., 2018. Dyfuzyjny ruch masy. Dyfuzja w gazach doskonałych i płynach rzeczywistych. Wydawnictwa Politechniki Krakowskiej, Kraków.
Tabis B., Boron D., 2020. Application of the dusty gas model for determining structural parameters of porous media. Przem. Chem., 99, 888–891. DOI: 10.15199/62.2020.6.11.
Tuchlenski A., Uchytil P., Seidel-Morgenstern A., 1998. An experimental study of combined gas phase and surface diffusion in porous glass. J. Membr. Sci., 140, 165–184. DOI: 10.1016/S0376-7388(97)00270-6.
Veldsink J.W., Versteeg G.F., van SwaaijW.M.P., 1994. An experimental study of diffusion and convection of multicomponent gases through catalytic and non-catalytic membranes. J. Membr. Sci., 92, 275–291. DOI: 10.1016/0376-7388(94)00087-5.
Yang J., Cermáková J., Uchytil P., Hamel C., Seidel-Morgenstern A., 2005. Gas phase transport, adsorption and surface diffusion in a porous glass membrane. Catal. Today, 104, 344–351. DOI: 10.1016/j.cattod.2005.03.069.
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Authors and Affiliations

Katarzyna Bizon
1
ORCID: ORCID
Bolesław Tabiś
1

  1. Cracow University of Technology, Faculty of Chemical Engineering and Technology, ul. Warszawska 24, 31-155 Kraków, Poland

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