• What happens during screw expeller processing of palm kernel seeds?
  • Heat transfer between the pressing chamber and the oil and oilcake streams during screw expeller processing of palm kernel seeds. Journal of Food Engineering, 31 (1), 1¨C7. Omobuwajo, T. O., Ige, M. T., & Ajayi, A. O. (1998). Theoretical prediction of extrusion pressure and oil flow rate during screw expeller processing of palm kernel seeds.
  • How to extract oleaginous seeds without solvent?
  • The oil extraction by mechanical pressing is the most common method for continuous treatment of oleaginous seeds without solvent. Different types of presses can be used depending on the purpose (expeller, expander, and twin-screw extruder) and on the capacity range (3 kg h ?1 to 150 t day ?1).
  • What is a seed expander?
  • Expanders are closed extruders, where the seeds are crushed but without oil extraction. The screw is locked in a closed system in which nozzles are regularly made to enable water or steam injection. This mode of seed crushing can be considered as a seed preparation before a second, mechanical or solvent extraction step.
  • What is industrial pressing of oilseeds?
  • Industrial pressing of oilseeds is realized using continuous screw presses. The presses are fed with crude or pre-treated seeds. Types of pre-treatments (thermal pre-treatment, size reduction, mechanical sieving, etc.) differ for various seed species (Carr 1997). Each type of seed pre-treatment provides its own advantages.
  • Does pressure cooking increase cottonseed processing profits?
  • Pressure cooking contributes increased cottonseed processing profits. Chemistry Metall. Eng., 44, 978¨C981. Terzaghi, K. (1925). Erbaudmechanik auf bodenphysikalischer Grundlage. Wien: Deuticke. Tostenson, K., Wiesenborn, D. P., Zheng, Y. L., Lipp, D., Kangas N. (2004). Start-up approaches and performance monitoring for screw-pressing flaxseed oil.
  • What is the difference between expander and expeller?
  • The expander is a unit assigned to seed or product preparation, whereas the expeller is the machine for mechanical oil separation from plant material or similar solid-liquid separation tasks.