Immersion type immobilized enzyme oil transesterification reaction device

Abstract

The utility model provides an infiltration type immobilized enzyme oil transesterification reaction device which comprises a reaction kettle used for accommodating grease raw materials; the reaction sleeve is suspended in the reaction kettle; the sleeve interlayer is arranged in the reaction sleeve, a plurality of wrapping pieces are further arranged on the sleeve interlayer, a plurality of non-uniform grids are distributed on the wrapping pieces, and the grids are filled with immobilized enzyme; the first stirrer is arranged on the adjacent side of the reaction sleeve; and the second stirrer is arranged in the reaction sleeve. The device is simple in structure, does not affect the recovery of immobilized enzyme, increases the recovery rate of immobilized enzyme and ensures the reaction stability.

Description

Technical Field

[0001] The utility model relates to an immersion type immobilized enzyme oil transesterification reaction device. Background Art

[0002] Enzyme is a highly efficient and specific biological catalyst, which is widely used in the fields of food, medicine, biology, chemical industry, etc. Since enzyme preparations are usually liquid, in order to be able to repeatedly recycle enzymes and reduce costs, people often use immobilization technology to make them solid and recycle them after use. However, in most reaction systems, the immobilized enzyme is only stirred in the system or made into a reaction column for reaction. The recovery of conventional immobilized enzyme reaction systems after reaction requires special treatment, such as centrifugation, filtration and other processes, which need to be carried out in another device.

[0003] However, the inventors have found that in a stirring system, the immobilized enzyme is easily affected by the shear force of the stirring paddle, resulting in breakage, dissolution, etc., which can easily reduce the process accuracy and the recovery rate of the immobilized enzyme when transferring and recovering the immobilized enzyme raw materials, and also increase the process time and reduce the efficiency. Moreover, when the recovery rate of the immobilized enzyme decreases, it may affect the stability of the enzyme reaction. Therefore, it is particularly important to design a simple reaction device that does not affect the recovery of the immobilized enzyme, increases the recovery rate of the immobilized enzyme, and ensures the stability of the reaction. Utility Model Content

[0004] The utility model provides an immersion-type immobilized enzyme oil transesterification reaction device, which can effectively solve the above problems.

[0005] The utility model is achieved in this way:

[0006] An immersion-type immobilized enzyme oil transesterification reaction device, comprising

[0007] A reaction kettle, used for containing oil and fat raw materials;

[0008] A reaction sleeve is suspended inside the reactor;

[0009] A sleeve interlayer is arranged inside the reaction sleeve, and a plurality of wrapping members are further arranged on the sleeve interlayer, and a plurality of uneven grids are distributed on the wrapping members, and the grids are filled with fixed enzymes;

[0010] A first stirrer is disposed on an adjacent side of the reaction sleeve;

[0011] The second agitator is arranged in the reaction sleeve.

[0012] As a further improvement, the first agitator is a single agitator, and the second agitator is a double agitator, wherein the radius of the agitator is R.

[0013] As a further improvement, there is a distance D between the single stirring paddle and the double stirring paddles, and the distance D is equal to the radius R.

[0014] As a further improvement, the stirring speed of the first stirrer is 20-80 rpm.

[0015] As a further improvement, the stirring speed of the second stirrer is 100-300 rpm.

[0016] As a further improvement, the wrapping material of the wrapping piece is non-woven fabric, melt-blown fabric or spunbond fabric.

[0017] As a further improvement, the wrapping members are arranged at equal intervals along the outer circumference of the sleeve interlayer.

[0018] As a further improvement, the first agitator is located at 1 / 4 of the inner diameter of the reactor, so that the oil sample in the sleeve interlayer and the reactor can flow fully and effectively.

[0019] The beneficial effects of the utility model are:

[0020] (1) The utility model improves the contact mode between materials. The immobilized enzyme in the grid reacts with the oil. Since the direct contact between the immobilized enzyme and the stirring paddle is avoided, the influence of shear force and impact force are reduced to a minimum. While ensuring the stable reaction, the breakage loss of the immobilized enzyme during stirring is avoided, the recovery rate is improved, and unnecessary losses are reduced during repeated use. The immobilized enzyme undergoes an ester exchange reaction with the oil in the grid, and the exchange of raw materials and products is promoted by rotation, so as to achieve the purpose of not losing the reaction efficiency. After the reaction is completed, after the product oil is released, the immobilized enzyme in the grid is fixed by the grid and subjected to high-speed rotation and centrifugation to perform deep separation of the oil and the immobilized enzyme, thereby reducing material transfer and improving efficiency. The immersion-type immobilized enzyme oil transesterification reaction device has obvious effects on improving the recovery efficiency of the immobilized enzyme, reducing the production process, and improving production efficiency. It is particularly suitable for the production of fully automated oil transesterification. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is the front view of the utility model.

[0023] Figure 2 It is a schematic diagram of the sleeve interlayer of the utility model.

[0024] Figure 3 It is a schematic diagram of the grid of the utility model.

[0025] Description of Figure Numbers:

[0026] 1. Reactor; 2. High-speed agitator; 3. Low-speed agitator; 4. Reaction sleeve; 5. Sleeve interlayer; 51. Package; 6. Grid; 7. Oil and fat raw materials. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0028] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Reference Figure 1-3 As shown, an immersion-type immobilized enzyme oil transesterification reaction device includes a reaction kettle 1 for accommodating oil raw materials 7.

[0030] The reaction sleeve 4 is suspended inside the reaction vessel 1 .

[0031] The first agitator 2 is arranged on an adjacent side of the reaction sleeve 4; the second agitator 3 is arranged inside the reaction sleeve 4. The first agitator 2 is a single agitator, and the second agitator 3 is a double agitator, wherein the radius of the agitator is R; there is a distance D between the single agitator and the double agitator, wherein the distance D is equal to the radius R. When the first agitator 2 and the second agitator 3 are turned on, the first agitator 2 reacts the oil raw material 7 inside the reactor 1 with the immobilized enzyme unevenly wrapped in the grid 6, so that the immobilized enzyme and the oil raw material 7 fully react.

[0032] The distance D between the single stirring blade and the double stirring blade refers to the distance between the stirring blades, not the distance between the stirring shafts. When the distance D is equal to the radius R, the first stirrer 2 and the second stirrer 3 are arranged at the best position.

[0033] Furthermore, when the spacing D is smaller than the radius R, the oil sample is stirred by the stirring paddle, generating excessive shear force, shortening the time for the oil sample to fully react with the catalyst filled in the grid 6, and reducing efficiency; when the spacing D is larger than the radius R, the stirring speed of the outer paddle needs to be increased to promote circulation, thereby increasing energy efficiency and wasting energy. Preferably, when the spacing D is equal to the radius R, the materials can be fully contacted to avoid excessive shear force, and energy efficiency can be saved and costs can be reduced.

[0034] It should be noted that the length of the spacing D varies with the radius R, which is not limited in this case and can be set according to actual needs.

[0035] The stirring speed of the first stirrer 2 is 20-80 rpm; in one embodiment, the speed of the first stirrer 2 is about 52 rpm. The stirring speed of the second stirrer 3 is 100-300 rpm; in one embodiment, the speed of the second stirrer 3 is about 178 rpm. The speed of the first stirrer 2 is less than the speed of the second stirrer 3. The advantage of this arrangement is that the material (immobilized enzyme) in the reaction sleeve 4 can be ensured to circulate in the reactor 1 during stirring.

[0036] It should be noted that the reaction sleeve 4 is filled with a catalyst, and the materials inside and outside the sleeve interlayer 5 need to be circulated promptly and effectively. The existence of the sleeve interlayer 5 makes the materials inside the sleeve interlayer 5 relatively stable and independent. The stirring of the external first agitator 2 has a reduced effect on the materials inside the sleeve interlayer 5 due to the existence of the sleeve interlayer 5. Adding a second agitator 3 inside the sleeve interlayer 5 promotes the mutual circulation of the materials inside the sleeve interlayer 5 and the external materials, thereby improving the reaction efficiency.

[0037] Furthermore, the first agitator 2 is in high-speed operation mode, and the second agitator 3 is in low-speed operation mode. The two are used in combination to enhance the convection of raw materials and products and increase the reaction rate. The first agitator 2 in high-speed mode improves the mixing and exchange of the external environment, and the second agitator 3 in low-speed mode provides convection for the grease inside the sleeve and the grease outside.

[0038] Furthermore, the first agitator 2 is located at 1 / 4 of the inner diameter of the reactor 1, so that the oil sample in the sleeve interlayer 5 and the reactor 1 can flow fully and effectively.

[0039] The sleeve interlayer 5 is arranged inside the reaction sleeve 4, and a plurality of wrapping members 51 are further arranged on the sleeve interlayer 5, and a plurality of uneven grids 6 are distributed on the wrapping members 51, and the wrapping members 51 are arranged at equal intervals along the outer periphery of the sleeve interlayer 5. In one embodiment, the number of wrapping members 51 includes but is not limited to three, and the spacing between each two groups of wrapping members 51 is 1 / 3-1 / 1 of the height of the sleeve interlayer 5. The advantage of this arrangement is that there is enough space to fix and adjust it during replacement. The wrapping material of the wrapping member 51 is non-woven fabric, meltblown fabric or spunbond fabric. In one embodiment, the wrapping member is made of non-woven fabric.

[0040] As an embodiment of the present case, the sleeve interlayer 5 can be designed to be separated or integrated. In one embodiment, preferably, the sleeve interlayer 5 is of separated design. The advantage of such a design is that it can ensure that the catalyst can be replaced after the catalytic ability decreases after repeated use in the small sleeve; at the same time, the grid 6 is of uneven design, and the immobilized enzyme catalyst filled in the grid 6 will be deposited due to the rotation of the shaft during the catalytic process. The irregular filling can reduce the impact of the deposition without affecting the catalytic efficiency.

[0041] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An immersion-type immobilized enzyme oil transesterification reaction device, characterized in that: include A reaction kettle (1) for containing oil and fat raw materials (7); A reaction sleeve (4) is suspended inside the reaction kettle (1); A sleeve interlayer (5) is arranged inside the reaction sleeve (4), and a plurality of wrapping members (51) are further arranged on the sleeve interlayer (5), and a plurality of uneven grids (6) are distributed on the wrapping members (51), and the grids (6) are filled with fixed enzymes; A first stirrer (2) is arranged on an adjacent side of the reaction sleeve (4); The second agitator (3) is arranged in the reaction sleeve (4).

2. The infiltration type immobilized enzyme oil transesterification reaction device according to claim 1, characterized in that: The first agitator (2) is a single agitator, and the second agitator (3) is a double agitator, wherein the radius of the agitator is R.

3. The infiltration type immobilized enzyme oil transesterification reaction device according to claim 2, characterized in that: There is a distance D between the single stirring paddle and the double stirring paddles, wherein the distance D is equal to the radius R.

4. The infiltration type immobilized enzyme oil transesterification reaction device according to claim 1, characterized in that: The stirring speed of the first stirrer (2) is 20-80 rpm.

5. The infiltration type immobilized enzyme oil transesterification reaction device according to claim 1, characterized in that: The stirring speed of the second stirrer (3) is 100-300 rpm.

6. The infiltration type immobilized enzyme oil transesterification reaction device according to claim 1, characterized in that: The wrapping material of the wrapping piece is non-woven fabric, melt-blown fabric or spunbond fabric.

7. The infiltration type immobilized enzyme oil transesterification reaction device according to claim 1, characterized in that: The wrapping members are arranged at equal intervals along the outer circumference of the sleeve interlayer (5).

8. The infiltration type immobilized enzyme oil transesterification reaction device according to claim 1, characterized in that: The first agitator (2) is located at 1 / 4 of the inner diameter of the reactor (1), so that the oil sample inside the sleeve interlayer (5) and the reactor (1) can flow fully and effectively.

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