KR20100021695A - Spinning disc reactor - Google Patents

Abstract

PURPOSE: A spinning disk reactor is provided to increase conversion ratio of reactant and reaction yield and to minimize amount of non-interactant. CONSTITUTION: A spinning disk reactor(100) comprises: an interactant feeder(12) of one or more kind; spinning disks(20,22,24) which are vertically arranged from the upper end to bottom and which advance a reaction of reactant supplied through the interactant feeder; a guide member(34) included in each spinning disk bottom; a tank(50) for collecting product collection which collects a product reacted in the spinning disk and the product transferred through the guide member; and a motor(40) for rotating the spinning disk and advancing the reaction.

Description

Spinning disc reactor

The present invention relates to a high speed spinning disk reaction apparatus, and more particularly, to a spinning disk reaction apparatus capable of greatly improving the conversion and reaction yield of the reactants and greatly improving the reactivity.

Generally, a reaction apparatus is necessary to obtain a product through chemical reaction. As such a reaction apparatus, a batch reactor made by adding a reactant to one reactor and then stirring is generally used. However, in the case of the above method, a large amount of unreacted material may be generated because a sufficient reaction is not performed for a reaction requiring a fast material transfer rate, and in case of using a catalyst, a separation process of the catalyst is essential, thereby increasing the cost as the capacity becomes larger. There is an ineffective problem.

Therefore, a high speed spinning disc reactor is known as a reactor for solving this problem. The general structure of the spinning disk reactor basically includes a spinning disk for supplying and discharging the cooling water into the inside, a liquid supply for adding a reactant, and a product collection tank for collecting a product. . The reactor supplies a reactant to the rotating disk surface and then proceeds the reaction with a strong centrifugal force generated on the surface to obtain a product. In the case of using the reaction apparatus for the organic synthesis reaction, the catalyst is coated on the surface of the disk and then applied in the form of a film to proceed with the reaction. The spinning disk reactor is faster than the conventional batch reactor, the catalyst can be fixed on the disk, and the activity of the catalyst is increased due to the mixing and heat transfer effect by the centrifugal force to reduce side reactions.

On the other hand, as shown in Figure 1, the conventional spinning disk reactor is supplied with a liquid to one spinning disk in which the supply and discharge of the cooling water to the inside, it is collected by rotating it to obtain the product. However, the above method has a problem in that a part of the liquid reactant dropped on the spinning disk surface sticks out of the spinning disk by centrifugal force due to rotation and is mixed with the product in a large amount, and when a large amount of liquid is added, the residence time is short. The conversion rate is lowered and the reaction rate is lowered, thereby lowering the reaction yield.

In addition, the technology for the existing spinning disk reactor is disclosed in US Patent No. 6,972,113. This U.S. patent includes a support member configured to be rotatable about an axis, the support member having a supply means for supplying the surface and at least one reactant to the surface, and the reactant freely flows by centrifugal force by the rotation of the surface. To form a thin film on the surface, wherein the surface has at least one mesh layer to increase the effective surface area for the reactants and to increase the remaining time of the reactants on the surface. However, the method proceeds separately in each disk, so if the reaction rate of the target reaction is slow, there is a limit in product yield, there is a problem that it is difficult to increase the conversion sufficiently.

Accordingly, it is an object of the present invention to increase the reaction yield and the conversion rate of the reactants, to minimize the amount of unreacted materials and to provide a high speed spinning disk reactor suitable for use in polymerization and etherification of various compounds. It is.

The present invention is at least one reactant supply,

Spinning disk that proceeds the reaction of the reactant supplied through the reactant supply, rotated about the same axis of rotation at least two vertically arranged from the top to the bottom,

A guide member provided at the bottom of each spinning disk to provide a path for moving the reacted products and unreacted reactants in the spinning disk,

A product collection tank for collecting the product reacted in the spinning disk and the product moved through the guide member, and

A motor for rotating the spinning disc to proceed with reaction

It provides a spinning disk reaction apparatus comprising a.

In the reactor of the present invention, the spinning disk may include the same disk in each stage or different disks in each stage, but may include 2 to 10 spinning disks, more preferably 2 to 4 disks. can do. In addition, the reaction apparatus is used for a polymerization reaction and an etherification reaction, and the polymerization reaction includes a liquid phase polymerization reaction, a gas phase polymerization reaction or a free radical polymerization reaction.

The spinning disk may be coated with a catalyst layer or an initiator on the surface. The spinning disk may be rotated about the same rotation axis to be 1 to 100 times the gravity acceleration.

The spinning disk may have a groove or a protrusion formed on a surface thereof, and the groove or the protrusion may be in the form of a rotating protrusion, a circular shape, or an irregular spiral shape. The spinning disk may include a reaction chamber having a cooling water supply means and a cooling water discharge means therein. In addition, the spinning disk may be provided with a heating means and a temperature control means therein.

The reactor is equipped with a heating means and a temperature control means for proceeding the reaction on the outer wall or inner wall of the reactor. The reactor may further include a gas supply unit and a residual gas discharge unit.

The spinning disk reactor according to the present invention is configured by vertically arranging spinning disks rotating about the same axis in multiple stages, thereby increasing the reaction surface area and the residence time of the reactants, thereby improving the reaction speed and minimizing the amount of unreacted materials. In addition, the conversion rate and reaction yield of the reactants can be greatly improved. Therefore, the spinning disk reactor of the present invention can be usefully used for polymerization or ether reaction using various monomers.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

The present invention relates to a spinning disk reactor that can increase the reaction area to form a film to improve the reaction rate.

According to the present invention, a reactor having multiple spinning disks in a reactor and rotating them with the same rotation axis may react the reactants several times on the surface of the disk to increase the residence time of the reactants, thereby improving the conversion rate and the yield of the reactants. There is this.

In the reactor of the present invention, at least two or more spinning disks are vertically arranged from the top to the bottom about the same axis of rotation, preferably 2 to 10, more preferably 2 to 4 vertically arranged.

As a preferred example, as shown in Fig. 2, the present invention arranges three spinning disks vertically in a row from top to bottom about the same axis of rotation.

In FIG. 2, the spinning disk reactor 100 of the present invention includes three spinning disks 20, 22, and 24 inside the reactor 10, and three guide members 30 and 32 installed at the bottom of each spinning disk. , 34), and a motor 40, which is a driving means for rotating the spinning disk on the same axis of rotation and proceeding with the reaction, and a product for collecting the reaction product completed by the rotation of the spinning disk. A collection tank 50 is provided. In this case, the reactant is introduced through the reactant inlet 12, gas is introduced through the gas inlet 60, which may be further provided, and the remaining gas may be discharged through the outlet 62.

Hereinafter, the reaction principle using the reaction apparatus of the present invention will be described.

In the present invention, the reactant is introduced into the surface of the spinning disk 20 of the first stage, among the spinning disks vertically arranged on the same rotation axis through the reactant input unit 12. At this time, the reactant is preferably added to the liquid phase. Thereafter, a film of the reactant is formed by the rotation of the spinning disk to increase the reaction area, and the reactant liquid undergoing the reaction is discharged to the outside of the spinning disk by centrifugal force. The liquid discharged by the centrifugal force is collected in the jaw of the guide member 30 installed on the inner wall of the reactor and the bottom of the first spinning disk and then moved to the second spinning disk 22 under the first disk. Then, the transferred liquid is collected in the center of the disk of the second stage and then proceeds with the same principle as in the first stage by the rotation of the disk. Then, the liquid discharged by the rotation is collected again in the jaw of the guide member 32 installed at the bottom of the second spinning disk and then moved to the spinning disk 24 of the third stage, and the same operation is repeated. Finally, the liquid discharged from the spinning disk of the third stage is moved through the guide member 34 installed at the bottom of the third stage to the product collection tank 50. Through this process, the residence time of the reactants in the reactor is increased, thereby reducing the amount of unreacted products, improving the conversion rate of the reactants, and increasing the reaction rate by forming the film to improve the yield. You can.

At this time, the reaction using the reaction apparatus of the present invention may include a gas-liquid reaction, a liquid-liquid reaction, and preferably include a polymerization reaction and an etherification reaction. The polymerization reaction may include a liquid phase polymerization reaction, a gas phase polymerization reaction or a free radical polymerization reaction, and the reaction type is not particularly limited. For example, in the case of an etherification reaction, at least one olefin and an alcohol are used as a reactant, and the reactant input unit is used to input the spinning disk device of the first stage, and each motor is rotated about the same axis of rotation using a motor. By spinning the spinning disc to advance the reaction, ethers or ether mixtures can be prepared. At this time, the spinning disk surface may be in the form of a zeolite catalyst coated. In addition, the olefin may be an alken or alkyne having 2 to 4 carbon atoms, and the alcohol may be a lower alcohol having 1 to 8 carbon atoms.

In addition, when the free radical polymerization in the present invention, a lamp for providing a UV light source may be further provided.

In addition, the spinning disk may be coated with a catalyst, an initiator or a mixture thereof on the surface. In the case of the polymerization reaction, the catalyst may include a conventional metal catalyst or a metal supported catalyst, and the type thereof is not particularly limited. In addition, in the case of the initiator, a conventional polymerization initiator used in the polymerization may be used. In addition, the coating thickness is not particularly limited as long as the reaction can proceed.

In the reactor of the present invention, the spinning disk includes a reaction chamber having means for supplying and discharging cooling water therein. In addition, the spinning disk may be provided with heating means and temperature control means for proceeding the reaction. In addition, heating means and temperature control means for advancing the reaction on the reactor outer wall or inner wall of the reactor may be provided.

In the present invention, the input of the reactant is determined in consideration of the retention time on the disk surface, the disk surface retention time of the reactant is preferably 1.0 to 1 second.

In addition, each of the spinning disk may be rotated about the same rotation axis at a rotational speed having an rpm in which G according to the following formula 1 is 1 to 100 times according to the radius of the disk.

[Calculation 1]

Where G is a multiple of the gravitational acceleration, r is the radius of the disk in m and rpm is the rotational speed in revolutions per minute.

The spinning disk may have a shape in which the surface is vertically flat with respect to the same axis of rotation, or optionally has an inclination into the axis of rotation axis at an angle of 5 to 85 ° with respect to the vertical plane. FIG. 3 shows a simplified illustration of a cross section of a spinning disk in which the shape of the surface of the spinning disk 24 has an inclination angle with respect to the internal central axis.

In addition, the spinning disk may optionally include a form such as a protrusion or groove on the surface. For example, the protrusion or groove shape may include a rotary protrusion shape, a circular shape, or an irregular spiral shape. 4 shows a simplified cross-sectional view of the spinning disk with the groove 26 in the shape of a circle formed on the surface of the spinning disk 24.

In the present invention, when the surface of the spinning disk has a slope, protrusion or groove shape, it is possible to further increase the residence time of the reactant in the spinning disk, thereby further improving the conversion rate and yield of the reactant.

In addition, the guide member may be installed between the spinning disks of each stage and installed on the inner wall of the reactor, and may be installed in the path of the lower end of each spinning disk at an angle through which liquid can flow. The guide member collects the liquid discharged after the reaction in each spinning disk and supplies it to the center of the next spinning disk so that the reaction proceeds, or after the reaction is completed, the product is collected in the center and moved to the product collection tank more easily. Be sure to

The reactor may further include a gas supply unit and a residual gas discharge unit when the gas-liquid reaction is selectively performed. That is, the reactor of the present invention may be provided with a gas input unit for selectively supplying gas into the reactor on the outer wall of the reactor. In this case, the gas is more preferably introduced by installing an inlet just below the jaw of the reactor inner wall. In addition, the residual gas generated after the reaction can be discharged through the discharge unit installed separately on the top of the reactor.

The reactor of the reactor may be made of a stainless material, but is not necessarily limited thereto.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

Figure 1 shows a schematic diagram of a conventional spinning disk reactor.

Figure 2 shows a simplified view of the configuration of the spinning disk reactor according to an embodiment of the present invention.

Figure 3 is a first embodiment showing the form of a spinning disk in the spinning disk reactor of the present invention.

Figure 4 is a second embodiment showing the shape of the spinning disk in the spinning disk reactor of the present invention.

<Brief Description of Drawings>

100: spinning disk reactor

10: reactor 12: reactant input

20, 22, 24: spinning disc

30, 32, 34: guide member 40: motor

50: product collection tank 60: gas input unit

62: residual gas discharge unit

Claims (12)

At least one reactant supply, Spinning disk that proceeds the reaction of the reactant supplied through the reactant supply, rotated about the same axis of rotation at least two vertically arranged from the top to the bottom, A guide member provided at the bottom of each spinning disk to provide a path for moving the reacted products and unreacted reactants in the spinning disk, A product collection tank for collecting the product reacted in the spinning disk and the product moved through the guide member, and A motor for rotating the spinning disc to proceed with reaction Spinning disk reaction apparatus comprising a. The reactor of claim 1, wherein the spinning disks are arranged in two to ten vertical rows from top to bottom about the same axis of rotation. The reaction apparatus of claim 1, wherein the reaction apparatus is used for a polymerization reaction and an etherification reaction. The reactor according to claim 3, wherein the polymerization reaction includes liquid phase polymerization, gas phase polymerization or free radical polymerization. The reaction apparatus of claim 1, wherein the spinning disk is coated with a catalyst layer, an initiator, or a mixture thereof on a surface thereof. The reaction apparatus of claim 1, wherein the spinning disk rotates about the same rotation axis at a rotation speed at which G is 1 to 100 times according to Formula 1 below. [Calculation 1]

Where G is a multiple of the gravitational acceleration, r is the radius of the disk in m and rpm is the rotational speed in revolutions per minute. The reactor of claim 1, wherein the spinning disk has grooves or protrusions formed on a surface thereof. 8. The reactor according to claim 7, wherein the groove or protrusion comprises a rotatable shape, a circular shape, or an irregular helical shape. The reactor of claim 1, wherein the spinning disk comprises a reaction chamber having a cooling water supply means and a cooling water discharge means therein. 10. The reactor according to claim 9, wherein the spinning disk is provided with a heating means and a temperature regulating means therein. The reactor according to claim 1, wherein the reactor is equipped with a heating means and a temperature control means for advancing the reaction on the outer wall or the inner wall of the reactor. The reactor of claim 1, wherein the reactor further comprises a gas supply and a residual gas outlet.

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