Petroleum refining plays an important role in people’s lives. Most transportation vehicles are powered by refined products such as gasoline, diesel, aviation turbine kerosene, and fuel oil. The recent price rise of crude oil over the last 2 years has affected the refining industry in several ways: there is an increased search for fuel products
Minister of Energy Jeff Radebe has refuelled the government’s determination to build another petroleum refinery equipment. In his budget vote speech this week, Radebe said “[Oil refining] is a significant contributor to the economy and the issue of the sustainability of the current refineries is of utmost concern”. The current refineries “are not equipped to
Oils like sunflower oil or maize germ oil (corn oil) have waxes present in them. At low temperatures these waxes give a hazy appearance to the oil. It is therefore essential to remove these waxes prior to bottling and marketing of the oil.
The pretreated oil is subjected to alkali refining. The caustic soda reacts with free fatty acids (FFA) present in the oil and forms soap stock. The soap stock is then removed by a centrifugal separator and oil is washed with water for the complete removal of soap stock. The wash water is separated out by
Features of Physical Refining High refinement rate; less oil loss No waste water discharged More FFA distilled Especially suited for highly acidic oils, and those of low gum content Features of Chemical Refining Excellent adaptability and fewer requirements for high oil quality The finished oil is consistent and stable Less bleaching earth necessary compared with
Our cold press oil expeller is a new generation of low-temperature screw oil expeller for the oil milling plant, and is especially well suited for mechanically processing common plants and oil crops with high added value characterized by low oil temperatures, high oil-out ratios and low dreg cake oil contents. Oil processed with this expeller
Single pressing can also be called full pressing and is usually applied at small capacity oil milling plants. For this process there is a single pressing machine. These mills work on the principle of mechanical extraction to separate oil from seeds. For seeds with high oil content, double pressing should be incorporated for maximum yield.
A Mini-extruder is a miniaturized extruder to “cook” oil-seeds or kernels by creating friction with use of mechanical energy. The Mini is a single-screw machine that grinds the seeds which creates friction and cooks the seeds. The Mini-Extruder is driven by a 7.5 HP motor and can process about 40-50 kg of whole soybeans per
Pre-Treatment is the process of eliminating impurities from Oils and Fats so that the FAME produced from such Oils and Fats is also free of such impurities. All feedstock (i.e., Animal Fats and Vegetable Oils) have impurities such as water, solids, gums, free-fatty acids (FFA), waxes, and compounds of Sodium, Potassium, Magnesium, Calcium, and other
FFA Stripping As mentioned previously, the Deodorizing equipment can be modified to achieve Physical Refining. Since the conditions for deodorization and physical refining are almost identical, the modified equipment can be employed to achieve deodorization as well as physical refining. Fatty-Acid Recovery Fatty-Acids are evaporated (distilled) in FFA Stripping. The Fatty-Acid vapors are condensed by
