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  • How is crude oil refined?
  • Retrieved March 13, 2019. Certain crude oils that contain minor amounts of impurities other than free fatty acids can be refined by a process known as steam refining. It is merely a high-temperature steam distillation under reduced pressure.
  • How is vegetable oil processed?
  • The processing of vegetable oil in commercial applications is commonly done by chemical extraction, using solvent extracts, which produces higher yields and is quicker and less expensive. The most common solvent is petroleum-derived hexane. This technique is used for most of the "newer" industrial oils such as soybean and corn oils.
  • What is refining in edible oil processing?
  • Refining is the last step in edible oil processing. We are committed to making every drop of oil safe, healthy and nutritious. Value-adding by-products may be produced from processing stages like Degumming, Neutralization, Bleaching, Dewaxing/Winterization and Deodorization.
  • How do you hydrogenate vegetable oil?
  • Hydrogenating vegetable oil is done by raising a blend of vegetable oil and a metal catalyst, typically nickel, in near-vacuum to very high temperatures, and introducing hydrogen. This causes the carbon atoms of the oil to break double-bonds with other carbons.