Liquid-phase adsorption and isomerization of C5-C8 n-paraffins

Autor:	E. B. Nurmamedov, Ch. Sh. Ibragimov
Rok vydání:	2012
Předmět:	Adsorption Chemistry General Chemical Engineering Yield (chemistry) Organic chemistry Octane rating Thermodynamics General Chemistry Gasoline Zeolite Isomerization Natural gasoline Catalysis
Zdroj:	Theoretical Foundations of Chemical Engineering. 46:135-141
ISSN:	1608-3431 0040-5795
DOI:	10.1134/s0040579512010058
Popis:	The liquid-phase adsorption of n-pentane, n-hexane, n-heptane, and n-octane from natural gasoline on zeolite CaA and their catalytic isomerization has been investigated experimentally and theoretically with the aim of increasing the octane number of a low-octane gasoline. An integrated process flowsheet combining processes in an adsorber and in an isomerization reactor has been developed. The basic results are as follows: the ultimate activity of CaA with respect to n-pentane, n-hexane, n-heptane, and n-octane in the case of their simultaneous adsorption at 25.0°C is 4.2, 4.7, 5.1, and 6.3 kg/100 kg, respectively. Kinetic and outlet adsorption data are also presented. The maximum yield of C5, C6, C7, and C8iso-paraffins is 62.0, 70.0, 66.0, and 47.0%, respectively. A mathematical model of the processes has been developed, and their parameters have been calculated. Calculated and experimental data are in satisfactory agreement.
Databáze:	OpenAIRE
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