Liquid -phase adsorption of n-paraffins on synthetic CaA zeolite

Autor: L. V. Borisova, N. M. Meged, Ya. V. Mirskii, A. Z. Dorogochinskii
Rok vydání: 1971
Předmět:
Zdroj: Chemistry and Technology of Fuels and Oils. 7:94-98
ISSN: 1573-8310
0009-3092
Popis: 1. Data were obtained on the static capacity and the kinetics for the adsorption of n-paraffins (n-decane, n-dodecane, and n-pentadecane) from the denormalizate of the 230–300°C kerosene fraction in the 100–200°C temperature range. The given n-paraffins are adsorbed by the CaA zeolite in amounts equal to 9.5–11.6 wt. %. An increase in the temperature from 100 to 200°C results in a relatively small decrease in the value for the adsorption capacity of the zeolite with respect to the n-paraffins (about 1.5 wt. %) and to a marked increase in the rate for the adsorption of the n-paraffins (approximately twofold). 2. The adsorption of n-dodecane and n-pentadecane was studied from solutions in isooctane by CaA zeolite under dynamic conditions. It was found that the high degree of saturation of the adsorbent by the n-dodecane is reached at 200–250°C and an input flowrate of 2–3 h−1. The temperature must be increased to 250–300°C and the flow rate must be decreased to 1–2 h−1 for an effective extraction of n-pentadecane from solution.
Databáze: OpenAIRE
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