The present technology corresponds to a method for generating tall oil from sodium sesquisulfate. This method is mainly based on using a sodium sesquisulfate solution to acidify tall oil soap and produce tall oil. This innovation allows decreasing the consumption of sulfuric acid in tall oil plants, as it may replace up to 100% of this chemical substance by a sodium sesquisulfate solution obtaining tall oil suitable to be used as fuel.
Due to sodium sesquisulfate is a byproduct that is not currently used and whose main property is its low pH, it should be standardized in order to be used in tall oil plants. To do this, a sodium sesquisulfate solution must be prepared adding water and thus performing the reaction with tall oil soap. The process comprises the following stages: (a) determining the concentration of the sodium sesquisulfate solution; (b) reaction between the sodium sesquisulfate solution and tall oil soap; and (c) separating the tall oil and brine phases.
Differentiation in current processes for obtaining tall oil and using a sodium sesquisulfate solution:
![]() |
Click on the picture to view in high resolution
|
![]() |
Click on the picture to view in high resolution |
Flowchart of the Tall Oil Plant using a sodium sesquisulfate solution:
![]() | |
|