Selective hydrotreating of cat-cracked gasoline over a K–CoMoS/Al2O3 catalyst View Full Text


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Article Info

DATE

2015-11-24

AUTHORS

D. I. Ishutenko, P. A. Nikul’shin, V. V. Konovalov, A. A. Pimerzin

ABSTRACT

The catalytic properties of CoMoS/Al2O3 and K–CoMoS/Al2O3 laboratory catalysts versus those of the commercial catalyst NK-100 (CoMo/Al2O3) have been investigated in the hydrotreating of the heavy fraction of cat-cracked gasoline (CCG). The basic kinetic parameters of the hydrodesulfurization and olefin hydrogenation processes have been experimentally determined. The addition of 7.5 wt % potassium to the CoMoS/Al2O3 catalyst decreases both the apparent activation energy and preexponential factor of both processes and increases the selectivity coefficient by a factor of over 3. Selective hydrotreating of the heavy fraction of CCG has been carried out over a K–CoMoS/Al2O3 sample at a temperature of 280°C, a pressure of 1.5MPa, a feed hourly space velocity of 7.5 h–1, and H2: feed = 100 NL/L. As a result, the sulfur content of gasoline has been reduced from 92 to 13 mg/kg without affecting the octane number. If the proportion of CCG in commercial gasoline obtained by compounding CCG with other components is 20–35%, the sulfur content of the product will meet the environmental requirements imposed on Class 5 fuels according to regulations. More... »

PAGES

747-757

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s0023158415060038

DOI

http://dx.doi.org/10.1134/s0023158415060038

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1048873503


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