Systems and techniques for controlling fouling solids when extracting oleaginous material using an alcohol

A method comprising:

• conveying an oleaginous material to be processed in a conveyance direction through an extractor and conveying a solvent comprising alcohol in a countercurrent direction from the conveyance direction through the extractor, thereby generating an extracted material stream and a miscella stream;
• cooling the miscella stream to form a cooled miscella stream and delivering the cooled miscella stream to a density separation device;
• within the density separation device, separating the cooled miscella stream into a solvent-rich phase, an oil-rich phase, and a solid phase comprising entrained solvent and oil;
• and
• extracting three separate streams from the density separation device:
• a first stream of the solvent-rich phase, a second stream of the oil-rich phase, and a third stream of the solid phase comprising entrained solvent and oil.

A method comprising:

• conveying an oleaginous material to be processed in a conveyance direction through an extractor and conveying a solvent comprising alcohol in a countercurrent direction from the conveyance direction through the extractor, thereby generating an extracted material stream and a miscella stream;
• cooling the miscella stream to form a cooled miscella stream comprising a solvent-rich phase, an oil-rich phase, and a solid phase comprising entrained solvent and oil;
• performing a first separation on the cooled miscella stream to separate a portion of the solvent-rich phase from a first remainder of the cooled miscella stream, the first remainder of the cooled miscella stream comprising the solid phase;
• performing a second separation on the first remainder of the cooled miscella stream to separate a portion of the oil-rich phase from a second remainder of the cooled miscella stream, the second remainder of the cooled miscella stream comprising the solid phase;
• performing a first thermal separation on the second remainder of the cooled miscella stream including the solid phase to thermally separate solvent from the second remainder of the cooled miscella stream, thereby forming a first thermally separated residual stream comprising the solid phase;
• and
• performing a second thermal separation on the first thermally separated residual stream to thermally separate solvent from the first thermally separated residual stream, thereby forming a second thermally separated residual stream comprising the solid phase.