the low temperature oil processing plant expeller

                                               
                                               
                                               
                                               
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  • What is expeller pressing used for?
  • In the edible oil industry, expeller pressing is used to produce cooking oils, salad oils, margarine, shortening, etc. from various seeds and nuts, such as soybean, canola, sunflower, cottonseed, peanut, castor and flax. In the biodiesel industry, expeller pressing is used to produce biodiesel from vegetable oils or animal fats.
  • What is the difference between expeller pressed and cold pressed oil extraction?
  • Expeller pressing removes about 87-95% of the oils from the nuts/seeds, making it the second most efficient. Cold processed oils cannot exceed 122°F during the extraction process. This means that vs. expeller pressed, a cold pressed oil extraction method allows for the natural enzymes to stay intact and maintains a higher level of nutrients.
  • What temperature does expeller pressing work?
  • Pressure involved in expeller pressing creates heat in the range of 140?210 °F (60?99 °C). Raw materials are typically heated up to 250 °F (121 °C) to make the pressing more efficient, otherwise the pressing itself will heat the oil to 185?200 °F (85?93 °C).
  • Can a mechanical oil expeller press be used for small scale oil extraction?
  • A mechanical oil expeller press was designed, constructed & further analyzed with simulation software (ANSYS) in this research work. This expeller can be useful for small scale oil extraction. ASME shaft design code was used in designing the screw shaft of the press. Locally available material (mild steel) was used in manufacturing of the expeller.