Summary
-
1.
Thermal, thermal-gas, and thermal-vacuum activation procedures have been applied to CaA zeolite at temperatures from 250 to 600°C, in order to determine their effects on subsequent use of the zeolite in drying a xylene cut.
-
2.
It has been shown that the dynamic activity of the CaA zeolite for moisture first increases with increasing activation temperature, then drops off; this same pattern is observed for all of the activation variants that were investiated. Optimal activation temperatures have been determined for the CaA zeolite; these are 350°C for thermalvacuum, 375°C for thermal-gas, and 425°C for thermal activation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
V. A. Sokolov, N. S. Torocheshnikov, and N. V. Kel'tsev, Molecular Sieves and Their Applications [in Russian], Khimiya, Moscow (1964).
S. P. Zhdanov and E. N. Egorova, Chemistry of Zeolites [in Russian], Nauka, Leningrad (1968).
V. G. Il'in, I. E. Neimark, and A. I. Rastrenko, in: Zeolites — Their Synthesis, Properties, and Application [in Russian], Nauka, Leningrad (1965), p. 185.
L. F. Fominykh and K. G. Asylova, in: Petroleum Refining and Petrochemistry, Inter-Vuz Collection [in Russian], No. 1, Izd. KKhTI im. S. M. Kirova, Kazan' (1972), pp. 44–48.
V. A. Klimova, Basic Micromethods of Analysis of Organic Compounds [in Russian], Khimiya, Moscow (1967), pp. 166–190.
L. H. Little, Infrared Spectra of Adsorbed Species, Academic Press, New York (1967).
Author information
Authors and Affiliations
Additional information
Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 10, pp. 21–23, October, 1974.
Rights and permissions
About this article
Cite this article
Fominykh, L.F., Asylova, K.G. Influence of activation conditions of dynamic activity of zeolite in drying xylene fraction. Chem Technol Fuels Oils 10, 765–767 (1974). https://doi.org/10.1007/BF00717110
Issue Date:
DOI: https://doi.org/10.1007/BF00717110