What is the distillate produced by the refining and deodorization process of edible oil and how to d

The distillate produced by the refining and deodorization process of edible oil mainly includes free fatty acids, triglycerides, tocopherols and phytosterols. These distillates can be esterified or methylated, with sterols and tocopherols in them. **After the product can be used as biodiesel**.

For a more detailed step, the deodorized distillate is first esterified or methylated. Esterification generally uses methanol or ethanol as an esterifying agent, and reacts free fatty acids with alcohol to form esters, i.e., emulsifiers, through the action of catalysts. Methyl esterification is the transesterification reaction of free fatty acids and methanol under the action of a catalyst to produce triglycerides and methyl fatty acids.

These treatments enable the distillate to be converted into commercially valuable compounds, such as biodiesel. However, the choice of treatment depends on the actual needs and conditions of the enterprise.

Please note that the above information is for reference only, please choose the specific processing method according to the actual situation and relevant regulations. For any chemical treatment process, it should be carried out under professional guidance to ensure safety and legality.

Deodorant distillates generally include substances such as free fatty acids, triglycerides, tocopherols, and phytosterols. The general treatment is esterification** of sterols and tocopherols in it, or methyl esterification of ** as biodiesel**.

What comes out of deodorization is some impurities such as volatile acids and pigments. Processed as a by-product, it is required by many chemical plants.

Zhengzhou Reke oil equipment answer.

According to the composition and nature of impurities in soybean oil, it can be divided into three categories:

1) Insoluble solid impurities, such as sludge, cake powder, fiber, clay, catalyst, etc.

2) Colloidal impurities, such as free fatty acids, sterols, vitamin E, pigments, vitamins, gossypol, etc.

3) Volatile impurities, such as moisture, alcohols, hydrocarbon solvents, odorous substances, etc.

Most impurities are detrimental to the quality and storage safety of soybean oil. For example, water not only affects the transparency of the oil, but also promotes the hydrolysis and rancidity of the oil; Free fatty acids affect flavor and promote spoilage; Phospholipids can cloudy the oil and produce a black precipitate when heated. foaming, bitterness, etc.; Various pigments directly affect the color of the oil and will also promote the rancidity of the oil; The presence of colloids, sulfur and phosphorus compounds, soaphorn and heavy metal salts makes it difficult to deacidify subsequent processes such as stripping.

The main process of soybean oil refining equipment.

1) Soybean oil degumming: remove phospholipids, mucus, resins, proteins, sugars, trace metals, etc. in **, generally using hydration and acid refining methods.

2) Soybean oil deacidification: free fatty acids, acidic pigments, sulfides, insoluble impurities and trace metals in the oil are removed by food-grade lye neutralization method.

3) Soybean oil washing: wash away the soaphorn and water-soluble impurities remaining in the oil during the deacidification process.

4) Soybean oil dehydration: Heating and vacuum drying are used to remove water from refined oil.

5) Soybean oil decolorization: use clay, aluminum silicate, activated carbon and other adsorbents to remove various pigments, colloids, oxides, etc. in the oil.

(6) Soybean oil deodorization: using the principle of vacuum air extraction, it removes low-molecular weight odor substances, free fatty acids, monoglycerides, glycolipids, sulfides, and thermal decomposition products of pigments in oil.

7) Soybean oil dewaxing or degreasing: mainly freezing, crystallization or winterization crystallization, fractionation to remove wax lipids in the oil.

The cost of soybean oil refining equipment is related to the capacity, configuration, and quality of refined oil requirements, which cannot be said in a word;