FIELD: oil and gas industry.
SUBSTANCE: invention refers to a method for dehumidification and deasphaltasing of crude oil involving the stages of: mixing crude oil containing hydrocarbons, asphaltenes and water with one or more solvents to prepare a first mixture; the first mixture is selectively separated to prepare an oil phase and a water phase wherein the oil phase contains hydrocarbons, asphaltenes and a solvent; asphaltenes are selectively separated from the oil phase to prepare deasphaltised oil containing at least a portion of hydrocarbons and at least a portion of the solvent, and an asphaltene mixture containing asphaltenes, a remaining portion of hydrocarbons and a remaining portion of the solvent; the solvent is selectively separated from the asphaltene mixture, and at least a portion of the separated solvent is recycled into the first mixture. The invention also refers a method for dehumidification and deasphaltasing of the hydrocarbon supplied material.
EFFECT: improved crude oil dehumidification with minimal capital expenses.
22 cl, 4 dwg
