Separation of solid paraffins from heavy oil fractions in an electric field

Abstract

The process of separating solid paraffins from heavy oil fractions is one of the most expensive and difficult to implement in oil refining. Dewaxing is usually carried out by the method of low-temperature crystallization of solid paraffins in the presence of a multiple excess of selective solvents. The search for other, simpler and inexpensive technologies for the isolation of solid paraffins is an urgent task. Some Russian scientists devoted their work to studying the possibility of dewaxing oil fractions in an electric field.These article deals with the influence of the main parameters of solid paraffin hydrocarbons electrodeposition in an electric field on the qualitative parameters of the process. It has been established that the shape of the electric field and the degree of its inhomogeneity don't affect the target indicators. Increasing the electric field strength to a certain limit leads to a decrease in the required time to complete the electrodeposition process. Increasing the process temperature leads to the release of higher melting paraffins. The complete release of solid paraffins in an electric field depends on the field strength, process temperature, type and concentration of the introduced additive.