Purification method of extra-heavy oil and Purification apparatus of extra-heavy oil

摘要

The present invention relates to a method for refining and refining super-crude crude oil that effectively removes asphaltenes in ultra-heavy crude oil by applying a high voltage electric field inside the extraction tower, and more specifically, a solvent composed of 3 to 8 carbon atoms and By mixing super heavy crude oil and applying a high voltage electric field to it, the dispersion of asphaltenes in super heavy crude oil is changed to induce cohesion of super heavy crude oil, and at the same time, the solvent and super heavy crude oil are smoothly contacted to maximize the solvent extraction effect. Next, the present invention relates to a method and apparatus for recovering crude oil from which asphaltene has been removed by stopping application of the electric field and separating the upper asphaltene removing oil layer and the lower asphaltene layer. That is, the present invention is characterized by a simple process configuration and mild operating conditions to solve the enormous equipment cost and energy consumption problem of the conventional deasphalten solvent extraction process to reduce the installation and operation costs required for the upgrading of super heavy crude oil You can do it.