What is a prepress solvent extraction method in a sunflower crushing plant?
In a typical sunflower crushing plant using the prepress solvent extraction method, the initial steps of seed pre-cleaning and seed drying are located in the seed receiving section of the facility, prior to seed storage.
Which extraction method is best for sunflower seeds?
Therefore, prepress solvent extraction, with the highest oil recovery yield, is the process method utilized today for the majority of the sunflower seed that is crushed globally.
How does a sunflower extractor work?
A typical sunflower plant will recover 99.8¨C99.9% of the solvent pumped to the extractor. Solvent vapors from the desolventizer toaster are primarily condensed in the shell side of the first evaporator of miscella distillation for heat recovery purposes. The remaining vapors pass to an atmospheric condenser, to be condensed.
How is sunflower crushed for oil recovery?
Sunflower is crushed for oil recovery via one of two process methods, hard pressing or prepress solvent extraction. Hard pressing relies upon exerting high pressure on the prepared seed to separate oil from the solids fraction, historically recovering about 25% oil from the seed.
