The present invention relates to the extraction of gasoline from a gas G, with
(a) a step of extracting gasoline from the gas to be treated comprising methanol GM obtained from step (d),
(b) a step of separating said fluid GL1 partially condensed in step (a), producing a first aqueous liquid phase A1, a first liquid phase H1 of hydrocarbon(s) a gaseous phase G1 obtained from the gas G; (c) a step of contacting a portion of the gas G to be treated with said first aqueous liquid phase A1, producing a second aqueous liquid phase A2, a gaseous phase of gas to be treated comprising methanol GM′; (d) a step of mixing said gaseous phase of gas to be treated comprising methanol GM′ with the remainder of the gas G to be treated, producing a gas to be treated comprising methanol GM,
(e) a step of stabilizing said first liquid phase H1 of hydrocarbon(s).