Development of a rule to maximize the research octane number (RON) of the isomerization product from light naphtha

다국어 초록 (Multilingual Abstract)

The isomerization process is a substantial technology to produce clean fuel from linear paraffinic speciesexisting in light naphtha. We investigated the influence of hydrocracking reactions besides the other reactions on theresearch octane number (RON) of the isomerization product. A reaction network and a kinetic model including fifteenlumps and sixteen reactions were developed. Several experiments were carried out in a pilot plant to estimatekinetic parameters. The accuracy of the model was evaluated by comparing the model prediction with the experimentalresults. The maximum RON and process yield were strongly dependent on the temperature, hydrogen to hydrocarbonmolar ratio (H2/Oil) and liquid hourly space velocity (LHSV). Also, increasing the reaction temperature compensatedfor the negative effects of raising the LHSV and H2/Oil in RON maximization. Moreover, we concluded thatthe hydro cracking reactions were very effective on RON, such that they can dominate the role of the other reactions.
By sensitivity analysis in this research, a rule was obtained to declare the effect of operating condition on maximizationof RON and the method of revamping of naphtha isomerization reactor.

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