The use of a moving layer of NaX zeolite allows propylene to be obtained in concentrations of 99.5% and over.
The minimum height of the sections for this purpose are: adsorption 0.6 m, rectification 1.0 m, desorption 0.5 m.
The optimum conditions for the process are: adsorption temperature 20°C, desorption temperature ∼200°C, amount of adsorbent 20–40 kg/m3 propylene.
The NaX zeolite's activity decreases slightly after the first 28 cycles,after which it becomes stabilized at a level equal to 84% of the initial activity.
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N. K. Gainko and A. Z. Korogochinskii, Khim. i Tekhnol. Topliv i Masel, No. 11 (1965).
Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 9, pp. 9–12, September, 1970.
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Gainko, N.K., Dorogochinskii, A.Z. Separation of propylene from the propane-propylene fraction by continuous adsorption by zeolite. Chem Technol Fuels Oils 6, 651–654 (1970). https://doi.org/10.1007/BF00716537
- Optimum Condition
- Initial Activity
- Desorption Temperature