Orange oil is highly used by cosmetics and beverage industries. It is a coproduct extracted during the production of fruit juice. It can also be obtained by hydrodistillation of orange flowers and leaves. It has a high concentration of terpene compounds that are unstable to heat and oxygen, and can degrade. The way to decrease the concentration of these components is through deterpenation. It is a process of terpenes removal, making those components responsible for the aromatizing characteristics, the oxygenated fraction, to be concentrated. Generally, the deterpenation is carried out by evaporation, however the high temperatures applied usually degrade the material. To overcome this difficulty, the deterpenation can be performed under mild conditions of temperature and pressure, by liquidliquid extraction. For perfume and beverage industries, alcoholic extracts of essential oils are interesting because of their high solubility in polar solvents and the reduction of oxidation reactions in the presence of alcohol. Thus, the objective of this work was to analyze the behavior of the deterpenation process by liquid-liquid extraction column, through the Aspen Plus process simulator and using hydroalcoholic solvents of ethanol with different hydrations contents (31.77% and 42.84% water, by weight). Through liquid-liquid data from the literature, binary parameters of NRTL model was obtained. Two systems were considered: quaternary (limonene / linalol / ethanol / water) and pseudoternary (limonene / linalol / hydroalcoholic solvent). For both systems, the operating conditions of the extraction column were varied: the ratio Solvent/Feed (S/F) and the number of stages. The operating conditions of four scenarios were determined by (1) the condition with the lowest number of stages and a lower S / F ratio to produce the deterpenated oil (3 stages and S / F of 0.5 for both solvents);(2) the condition that obtains the highest flow of deterpenated oil (3 stages and S / F ratio of 4.5 and 5 stage and S / F ratio of 5.0, for the solvent less and more hydrated, respectively); (3) the one that reaches the highest recovery of linalool in the current extract (5 stages and S / F ratio of 2.0 and 6 stages and S / F ratio of 4.0, for the solvent less and more hydrated, respectively); (4), and one that has an optimal point between selectivity and yield (5 stages and 1.5 and 5 stage S / F ratio and S / F ratio of 3.5, for the less and more hydrated solvent, respectively ). In scenario (4), 91% of the linalool present in the feed was extracted for the solvent less hydrated, and 89.6% of linalool was extracted for the most hydrated. The pseudoternary system allowed the visualization of the ternary diagram, however it was not sufficiently accurate in the description of the system. The study showed that hydroalcoholic mixtures are able to achieve a high recovery of oxygenated compounds in the orange oil deterpenation process, producing hydroalcoholic extracts with high levels of linalool (solventfree basis) favorable to applications in the pe...