Abstract

JESSICA, Castillo,; LILIANA, Guzmán-Beckmann,; BRYAN, Escola,  and  EMERSON, Reyes,. Influence of Storage Conditions on Reid Vapor Pressure, Gum Formation and Octane Number Research of Gasoline. Rev Politéc. (Quito) [online]. 2023, vol.52, n.1, pp.63-72. ISSN 2477-8990.  https://doi.org/10.33333/rp.vol52n1.07.

Gasoline is composed of volatile and flammable liquid hydrocarbons obtained in oil refining process. Each country determines the appropriate quality of its fuels, which depends on climate variations, among other considerations. Storage time and temperature have a negative effect on the quality of gasoline. This study seeks the best storage conditions for counter samples and to determine the maximum time that gasoline can remain in a car without being used or in a storage tank of a gas station with low turnover of the product, for gasoline quality requirements in the operation of spark ignition engines. The influence of storage conditions on the Reid Vapor Pressure (RVP), formation of gums and the Research Octane Number (RON) in gasoline was studied for a period of 160 days with analysis every 40 day in gasoline samples of 92 and 85 RON. In addition, the concentration of olefinic, aromatic and saturated compounds were analyzed in all the experimental conditions. These samples were treated in four storage conditions: uncapped samples at 18 and -14 °C and capped samples at 18 and -14 °C. When the samples were stored in closed containers at -14 °C for a period of less than 80 days, the physical-chemical parameters of gasoline were within the acceptable ranges by the Ecuadorian standard.

Keywords : Gasoline; Reid Vapor Pressure; Gum Content; Research Octane Number.

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