Purification of mechanical impurities in crude oil

         Mechanical impurities in crude oil refers to the oil storage process or mixed with oil in the sediment, blank powder, cake, fiber, grass and other solid impurities.This kind of impurity is insoluble in oil, so it can be removed by filtration, sedimentation and other methods.Mechanical impurities, easily lead to a bubble, and tower evaporation equipment scale evaporation process of subsequent changes, and the nature of the meal at the end of the heat decomposition will lead to decline in gross oil quality, must be thoroughly to remove such impurities first.

        For the separation of mechanical impurities in crude oil, sedimentation and filtration are usually adopted, but the content, composition, size and properties of impurities vary greatly with the process of making oils. In the actual production, the general process for separating mechanical impurities in crude oil for oil press separation (coarse separation and fine separation); mechanical impurities leaching in crude oil (solid meal containing 0.4-1.0% at the end of the normal separation method) including: filtration, centrifugation and sedimentation. The purpose of the purification of mixed oils is to clear the end of the meal and prepare for the subsequent evaporation and stripping of the mixed oil. A systematic description and description of the purification of mixed oils (leaching oils) will be presented below.

First, the composition and treatment process of mixed oil