Oil degumming method

A technology of degumming and grease, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of difficult separation of phospholipids, oil emulsification, poor flocculation and settlement of phospholipids, etc., and achieve the effect of avoiding emulsification and oil emulsification

Inactive Publication Date: 2011-11-23
湖南盈成油脂工业有限公司
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AI Technical Summary

Problems solved by technology

[0008] In order to overcome the problems of oil emulsification, phospholipid flocculation and sedimentation and difficulty in phospholipid separation in the prior art, the present invention proposes a new method for degumming oil, which effectively avoids the problems of oil emulsification and difficult oil degumming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 1000kg of crude vegetable oil, carry out acid reaction from the acid reaction tank, and then enter the multi-effect mixer, and the mixing frequency of the multi-effect mixer is 45HZ. At the same time, the sodium hydroxide with a molar concentration of 1mol / L is added by the lye quantitative pump, and the amount of sodium hydroxide is calculated according to the following formula:

[0019] G NaOH =7.13×10 -4 ×G 油 ×AV×(1~1.25 times)

[0020] AV——acid value of crude oil mgKOH / g oil G 油 ——crude oil quality, Kg

[0021] The acid value of crude oil is 4.2 after acid reaction, and the calculation shows that the amount of sodium hydroxide added is about 3kg.

[0022] At the same time, 3.5 kg of hot water was added by the hot water pump for mixing, the temperature of the hot water was controlled at 95° C., and the acid value was measured to be 7.5 after the reaction. The mixed oil was poured into the reaction tank for stirring and reacting for 50 minutes. Then throug...

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Abstract

The invention provides a novel oil degumming method which comprises: acidifying crude oil, adding 0.33-1.77 mol / L sodium hydroxide into the acidified crude oil, simultaneously adding hot water at 90-99 DEG C, stirring and mixing, wherein the amount of sodium hydroxide is determined by the mass and acid value of the crude oil and the weight of the hot water is 0.3-0.4% of that of the crude oil; and carrying out mixing reaction for 35-60 minutes, then heating to 90-95 DEG C for reaction, then removing impurities, washing and drying. By using the method provides by the invention, the difficulty in oil emulsion and oil degumming can be effectively solved.

Description

technical field [0001] The invention relates to a grease processing technology, in particular to a method for degumming grease. Background technique [0002] Impurities such as phospholipids, proteins, mucus, and glycosyl diglycerides contained in crude oil are called peptizing impurities because they form a peptizing system with oil. The existence of these peptizing impurities not only reduces the use value and storage stability of oil, but also has a series of adverse effects in oil refining and processing. Resulting in a decline in the quality of the final product oil. Because the peptizing impurities in crude oil are mainly phospholipids, degumming is often called dephosphorization in the process. [0003] There are many degumming methods, such as hydration degumming, acid refining degumming, alkali refining degumming, special wet degumming and chemical reagent degumming, etc. The most common applications in the oil industry are hydration degumming and acid refining d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/06
Inventor 彭华
Owner 湖南盈成油脂工业有限公司
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