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Continuous oil fat refining process

An oil and process method technology, which is applied to the field of corn germ production and refined corn oil, can solve the problems of increased neutral oil, high tank body, reduced yield, etc., and achieves the effects of accelerated reaction speed, violent molecular motion, and reasonable contact time.

Active Publication Date: 2009-07-15
SHANDONG XIWANG FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tank body is high, and the sealing and concentricity are difficult to solve. Oil leaks and leaks often occur. The escaped oil is too large and the yield is reduced.
The more important problem is that the mixed liquid causes mixed flow in the delay tank, and the residence time is inaccurate. It cannot be guaranteed that the mixed liquid that enters the delay tank first will come out first, so that some of the materials that have stayed for too long will age, and the neutral oil will increase. If the residence time is too short, the reaction of the material is not complete, especially when the traditional process equipment is used to refine corn oil, the content of phosphorus and soap cannot reach the refining target

Method used

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  • Continuous oil fat refining process
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] A production line with a daily processing capacity of 200 tons of crude corn oil

[0088] One acid continuous reactor: 350MM in diameter and 1400MM in length (cone at both ends).

[0089] The residence time of the material in the continuous reactor is 1.01 minutes

[0090]The alkali continuous reactor has a diameter of 350MM and a length of 3000MM (cones at both ends). 2 in series. The residence time of the material in the continuous reactor is 4.32 minutes

[0091] The former known soybean oil refining process has only a stirring type alkali delay tank. In the present invention, one acid continuous reactor is newly added, and two alkali continuous reactors are added to replace the stirring type alkali delay tank.

[0092] The set of reactors fully meet the technological requirements.

[0093] The product quality comparison with the traditional craft is as follows:

[0094] Degumming FFA%, the present invention can reach 0.05%, the traditional process is generally...

Embodiment 2

[0097] A production line with a daily processing capacity of 1,000 tons of crude corn oil

[0098] The continuous reactor can be enlarged in the same proportion, and the above-mentioned indicators can be achieved.

[0099] That is: the diameter d of section 1-1 1 = 100mm, d 2 =600mm, the flow rate is Q 1 =42(m 3 / Hr), 42m 3 / Hr / 60=0.7M 3 / Minute,

[0100] By Q=UA, then

[0101] u 1 =Q 1 / A 1 =0.7 / [3.14(0.1 / 2) 2 ]=89.2M / min,

[0102] And Q 1 =Q 2 ,

[0103] u 2 =Q 2 / A 2 =0.7 / [3.14(0.6 / 2) 2 ]=2.48M / min

[0104] a. When the diameter d of section 2-2 2 =600mm, when the length is 2800mm, the time for the fluid to flow through this section is

[0105] 2.8M / 2.48M / min=1.129(min) for acid refining continuous reactor

[0106] b. When the diameter d of section 2-2 2 =600mm, when the length is 5000mm, the time for the fluid to flow through this section is

[0107] 5M / 2.48M / min=2.02(min) for continuous reactor of alkali refining. 2 in series. The residence time o...

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Abstract

The technical solution of the present invention is a process for continuous refining of oil, including crude oil hydration degumming-acid refining-alkali refining-desoaping-water washing-drying, etc., which is characterized in that in the process of acid and alkali refining , Add acid refining continuous reactor or / and alkali refining continuous reactor to replace the alkali refining delay tank in the traditional oil refining process, and use it to implement the acid and alkali refining process of corn oil. In the invention, oil, acid and alkali are evenly mixed, the contact time is reasonable, and the reaction is sufficient, which avoids the back-mixing phenomenon of the mixed oil before and after, ensures the first-in-first-out of the mixed liquid, and solves the problems of incomplete refining reaction and excessively long local reaction. It effectively prevents the saponification of neutral oil, and solves the problem that the product quality cannot reach the general index of international edible oil when using the traditional stirring alkali refining delay tank process to refine corn oil.

Description

Technical field: [0001] The invention belongs to the field of oil processing, and relates to an oil refining method in a corn deep processing comprehensive utilization project, in particular to a production method and equipment for producing refined corn oil from corn germ. Background technique: [0002] my country is a large agricultural country with rich resources of agricultural products. The total output and commodity volume of major agricultural products rank among the top in the world. Therefore, deep processing of agricultural products is a promising industry. [0003] Corn is one of the most important food crops grown by humans, accounting for about a quarter of the world's total food crop production. Corn is also the main food crop variety in my country, and its total output is second only to rice and wheat, ranking second in the world. Its comprehensive processing is an economic field waiting to be developed urgently. [0004] The more direct role of corn deep pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11C3/04C11C3/06
Inventor 王勇王辉崔宝贵杜军
Owner SHANDONG XIWANG FOOD