US Patent 7981277 Integrated solvent deasphalting and dewatering
Patent 7981277 was granted and assigned to Kellogg Brown & Root Limited on July, 2011 by the United States Patent and Trademark Office.
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A method for dewatering and deasphalting a hydrocarbon feed is provided. A hydrocarbon feed containing one or more hydrocarbons, asphaltenes and water can be mixed or otherwise combined with one or more solvents. The addition of the solvent sufficiently decreases the density of the hydrocarbon feed to enable gravity settling of the water phase, providing an oil phase containing one or more hydrocarbons, asphaltenes and solvents. The asphaltenes can be separated from the oil phase to provide an asphaltene mixture containing asphaltenes and a portion of the solvents and a deasphalted oil containing one or more hydrocarbons and the balance of the solvents. The solvents can be separated from the asphaltenes and deasphalted oil, and recycled to the initial mixing step wherein the solvent is mixed or otherwise combined with one or more solvents.
US Patent 07981277 Integrated solvent deasphalting and dewatering US Patent 7981277 Integrated solvent deasphalting and dewatering
US Patent 07981277 Integrated solvent deasphalting and dewatering
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