Soybean Oil Deodorization Mastery: Advancing Techniques in Oil Purification

Deodorization of soybean oil is one of the crucial links in the production process of soybean oil. Through deodorization operation, the odor and impurities in the oil can be effectively removed, and the quality and stability of the oil can be improved. This article will deeply explore the mechanism, influencing factors, deodorization process and related deodorization equipment of soybean oil.

Soybean Oil Deodorization Equipment for Sale
Soybean Oil Deodorization Equipment for Sale

Soybean Oil Deodorization Mechanism

The basic principle of deodorization is to remove volatile substances from oil through steam deodorization, thereby improving the odor and quality of the oil. Specifically, under the high temperature of steam, the bad odor substances in the oil quickly volatilize and are removed through the vacuum system to achieve the deodorization effect.

  • 1. Removal of volatile substances under the action of high-temperature steam

During the deodorization process, the volatile substances in the oil (such as free fatty acids, aldehydes, ketones, acids, etc.) are rapidly volatilized through the high temperature action of steam. These substances are often the main source of bad odors in oils.

  • 2. Application of vacuum system

During the steam deodorization process, a vacuum system is used to quickly remove volatile harmful substances. The vacuum system helps reduce system pressure, causing volatile substances in the oil to evaporate and be removed more quickly, improving deodorization efficiency.

  • 3. Control deodorization conditions

Temperature Control: Ensure deodorization is carried out within the appropriate temperature range to avoid loss of grease quality.

Vacuum degree control: Adjust the vacuum degree to ensure that volatile substances are quickly evaporated and discharged during the deodorization process.

Deodorization time: Control the deodorization time to ensure complete removal of harmful substances.

  • 4. Optimization of deodorization effect

Optimizing the deodorization effect also requires consideration of the design of the deodorization equipment and the reasonable setting of operating parameters. Suitable deodorization equipment can provide sufficient contact area so that volatile substances in grease can be volatilized and eliminated more easily.

Generally speaking, through the synergistic effect of high-temperature steam and vacuum systems, steam deodorization can effectively remove odor substances in oil, improve the quality and taste of soybean oil, and make it more suitable for various types of food preparation!

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Deodorization influencing factors and optimization suggestions

Temperature control - suitable temperature

Deodorization temperature is one of the key factors affecting the deodorization effect. Appropriate deodorization temperature can effectively volatilize the odor substances in the oil and improve the deodorization effect. Usually, the deodorization temperature is between 230℃-270℃, and the specific temperature should be adjusted according to the type and quality of the oil. However, excessively high temperatures may cause the oil to deteriorate, so a balance needs to be found between efficient deodorization and maintaining stable oil quality.

Deodorization time - reasonable control

Deodorization time is critical to keeping oil quality stable. A deodorization time that is too short may not completely remove odors, while a deodorization time that is too long may result in unnecessary waste of energy. The selection of deodorization time should be adjusted according to the type of grease and the degree of odor. Typically, lighter odor substances may require a shorter deodorization time, while stronger odors may require a longer treatment time.

Steam quality - pure steam

The quality of steam used in the deodorization process is directly related to the deodorization effect. Using pure, odor-free steam helps improve deodorization efficiency. Odor substances in the steam may have a negative impact on the grease, so the purity of the steam needs to be ensured.

Vacuum degree - deodorization rate

The degree of vacuum in the deodorization equipment affects the deodorization rate. Appropriately increasing the degree of vacuum can help quickly remove volatile substances. . By maintaining an appropriate degree of vacuum, deodorization can be achieved at lower temperatures and reduce adverse effects on oil quality.

Deodorization process - multiple links working together

The soybean oil deodorization process is a comprehensive system project, including pretreatment, steam deodorization, condensation cooling and other links. Among them, steam deodorization is a key step, and each parameter needs to be carefully controlled to ensure that the deodorization effect meets expectations.

Pretreatment: Before deodorization, oil usually needs to be pretreated, including impurity removal, dehydration and other steps to ensure the basic quality of the oil.
Steam deodorization: Under the action of high-temperature and high-pressure steam, the odorous substances of grease volatilize and are discharged through the vacuum system. Controlling temperature, time, and vacuum is the key.
Condensation cooling: The deodorized grease needs to be condensed and cooled to condense steam into water to ensure the stability of the grease.

Deodorization equipment selection and mechanism

Vegetable Oil Refining Deodorization System for Soybean
Vegetable Oil Refining Deodorization System for Soybean

Deodorization equipment is the core part of the soybean oil deodorization process. Choosing the right equipment is crucial to improving the deodorization effect.

  • Steam deodorization tank: The main body of the equipment is usually made of stainless steel, which is resistant to high temperatures and corrosion.

  • Vacuum system: The air in the deodorization tank is extracted through a vacuum pump to ensure deodorization in a low-pressure environment and improve the deodorization effect.

  • Condenser: Used to condense steam into water to facilitate the separation of odorous substances.

Deodorization of soybean oil is an indispensable link in soybean oil production. Through reasonable deodorization process and equipment selection, the quality and market competitiveness of oil can be effectively improved. In the future development, more intelligent, energy-saving and environmentally friendly deodorization technology will become the trend of industry development, bringing broader development space to the soybean oil industry.

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