CN217830038U - Synthesis device of methyl isopropyl ketone - Google Patents

Abstract

The application provides a methyl isopropyl ketone synthesis device, a shell of a reactor is divided into a first shell pass and a second shell pass by using a partition plate, wherein heat conduction oil with the temperature of 180-200 ℃ is used as a heat exchange medium in the first shell pass, normal-temperature heat conduction oil is used as a heat exchange medium in the second shell pass, after the reaction starts, the first shell pass is communicated with the second shell pass, high-temperature heat conduction oil in the first shell pass is transferred to the second shell pass through a material transfer pump, and low-temperature heat conduction oil in the second shell pass enters the first shell pass to form a cycle, so that heat generated by a reaction tube of the first shell pass is transferred to the second shell pass to be utilized, and normal-temperature heat conduction oil in the second shell pass can be input into the first shell pass to cool the reaction tube of the first shell pass. Therefore, the utilization of heat in the synthesis of the methyl isopropyl ketone is realized, and the waste of energy is reduced. In addition, the first shell pass and the second shell pass can exchange heat independently and can exchange heat uniformly after being communicated, so that the use flexibility of the device is improved.

Description

Synthesis device of methyl isopropyl ketone

Technical Field

The application relates to the technical field of chemical synthesis, in particular to a methyl isopropyl ketone synthesis device.

Background

Methyl isopropyl ketone, also known as 3-methyl-2-butanone, is an organic compound with the chemical formula C ₅ H ₁₀ O, a colorless liquid, slightly soluble in water and soluble in most organic solvents, is an important industrial raw material, is mainly used as a dye intermediate, and can be used in the industries of medicines, pesticides, textiles, paints, ore dressing and the like.

The existing industrial synthesis method of methyl isopropyl ketone is isoprene and hydration catalysis, i.e. isoprene and steam are combined and reacted at 200-22 ℃ under the action of a catalyst. The reaction is generally carried out in a shell-and-tube reactor.

The tubular reactor is a common chemical reactor, also called tube bundle reactor. Consists of a plurality of reaction tubes, and the tubes are filled with catalyst. The structure is similar to a shell-and-tube heat exchanger and comprises a tube bundle, a shell, two end sockets and the like. Heating medium or cooling medium is adopted outside the tube to heat or cool the reaction, and the reaction temperature is maintained. Such shell and tube reactors are generally used for carrying out strongly exothermic or strongly endothermic reaction processes.

The synthesis reaction of methyl isopropyl ketone needs to be initiated at a temperature of 200 ℃, and the reaction is exothermic, that is, after the reaction starts, a large amount of heat is released from the reaction system. Due to the structure, when the synthesis reaction of methyl isopropyl ketone is carried out in a tubular reactor, the reaction starts from the raw material input end of a reaction tube, a catalyst in a reaction bed participates in the reaction in a sectional manner, heat is released locally, the temperature of a part in the reaction tube, which is subjected to reaction, and a part which is not subjected to reaction is not uniform due to the heat release, and the local high temperature phenomenon (the temperature can reach more than 250 ℃) exists, so that the catalyst is inactivated.

The existing solution is to stop introducing a heating medium (high-temperature heat transfer oil with the temperature of 200-230 ℃) to the shell side of the tubular reactor after the reaction starts, and to address the temperature increase condition of the shell side heat transfer medium of the tubular reactor, introduce a heat transfer medium with a lower temperature, such as normal-temperature heat transfer oil, to the shell side of the tubular reactor.

SUMMERY OF THE UTILITY MODEL

The application provides a methyl isopropyl ketone's synthesizer for solve above-mentioned current methyl isopropyl ketone's of synthesizing device, can't utilize the problem of the heat that releases in the methyl isopropyl ketone synthetic reaction.

The application provides a synthesizer of methyl isopropyl ketone, includes: the system comprises a reactor, a first heat conduction oil supply tank, a second heat conduction oil supply tank and a material transferring pump;

the reactor comprises a shell, an upper end enclosure, a lower end enclosure, a partition plate arranged in the shell and at least one reaction tube, wherein the reaction tube penetrates through the partition plate to communicate the upper end enclosure and the lower end enclosure;

a first shell pass is formed between the partition plate and the top of the shell, and a second shell pass is formed between the partition plate and the bottom of the shell;

a first heat exchange medium inlet is formed in the position, close to the upper surface of the partition plate, of the shell, and a first heat exchange medium outlet is formed in the upper portion of the shell;

a second heat exchange medium inlet is formed in the lower part of the shell, and a second heat exchange medium outlet is formed in the position, close to the lower surface of the partition plate, of the shell;

the first heat exchange medium inlet is connected with the first heat conduction oil supply tank through a sixth valve, and the first heat exchange medium outlet is connected with the first heat conduction oil supply tank through a first valve;

the second heat exchange medium inlet is connected with the second heat conduction oil supply tank through a second valve, and the second heat exchange medium outlet is connected with the second heat conduction oil supply tank through a third valve;

the first heat exchange medium inlet is also connected with the second heat exchange medium outlet through a fourth valve, the first heat exchange medium outlet is also connected with the material transferring pump through a fifth valve, and the second heat exchange medium inlet is connected with the material transferring pump through a one-way valve;

the top of the upper end enclosure is provided with a feeding port, and the bottom of the lower end enclosure is provided with a discharging port.

Optionally, a baffle is disposed in the shell, one end of the baffle is fixed on the inner wall of the shell, the other end of the baffle extends into the shell along the radial direction of the shell, and the baffle is penetrated by the reaction tube.

Optionally, the part of the baffle plate not penetrated by the reaction tube is provided with a plurality of special-shaped holes.

Optionally, a gas distributor is arranged in the upper end enclosure and is connected with the feeding port.

Optionally, the gas distributor is a dendritic gas distributor or a two-column vane gas distributor.

Optionally, a heater is disposed in the first conduction oil supply tank.

Optionally, the outer wall of the second conduction oil supply tank is provided with a water-cooled jacket.

Optionally, the baffle is provided with a plurality of baffles, and a plurality of baffles are arranged in the shell in a staggered manner.

According to the methyl isopropyl ketone synthesis device, a shell of a reactor is divided into a first shell pass and a second shell pass by using a partition plate, wherein heat conduction oil with the temperature of 180-200 ℃ serves as a heat exchange medium in the first shell pass, normal-temperature heat conduction oil serves as a heat exchange medium in the second shell pass, after reaction starts, the first shell pass is communicated with the second shell pass, high-temperature heat conduction oil in the first shell pass is transferred into the second shell pass through a material transfer pump, low-temperature heat conduction oil in the second shell pass enters the first shell pass, circulation is formed, heat generated by a reaction tube in the first shell pass can be transferred into the second shell pass to be utilized, and the normal-temperature heat conduction oil in the second shell pass can be input into the first shell pass to play a role in cooling the reaction tube in the first shell pass. Therefore, the utilization of heat in the synthesis of the methyl isopropyl ketone is realized, and the waste of energy is reduced. In addition, the first shell pass and the second shell pass can exchange heat independently and can be communicated with each other to exchange heat uniformly, so that the use flexibility of the device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic diagram of a synthesis apparatus for methyl isopropyl ketone provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a reactor according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a baffle according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a synthesis apparatus for methyl isopropyl ketone provided in another embodiment of the present application.

Description of reference numerals:

1. a reactor;

1001. a first valve;

1002. a second valve;

1003. a third valve;

1004. fourth valve

1005. A fifth valve;

1006. a sixth valve;

101. a housing;

1011. a first heat exchange medium inlet;

1012. a first heat exchange medium outlet;

1013. a second heat exchange medium inlet;

1014. a second heat exchange medium outlet;

102. sealing the head;

1021. a feeding port;

103. sealing the end;

1031. a discharge port;

104. a partition plate;

105. a reaction tube;

106. a baffling baffle;

2. a first conduction oil supply tank;

2001. a one-way valve;

21. a heater;

3. a second conduction oil supply tank;

31. a water-cooled jacket;

4. a material transferring pump;

5. a gas distributor;

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort also belong to the protection scope of the present application.

As shown in fig. 1, the present application provides an apparatus for synthesizing methyl isopropyl ketone, comprising: the system comprises a reactor 1, a first heat-conducting oil supply tank 2, a second heat-conducting oil supply tank 3 and a material transferring pump 4;

the reactor 1 comprises a shell 101, an upper seal head 102, a lower seal head 103, a clapboard 104 and at least one reaction tube 105;

the upper seal head 102, the shell 101 and the lower seal head 103 are independent closed spaces and are connected in sequence;

the partition plate 104 is arranged in the shell 101 and divides the shell 101 into two closed spaces; a first shell pass is formed between the partition plate 104 and the top of the shell 101, and a second shell pass is formed between the partition plate 104 and the bottom of the shell 101;

the reaction tube 105 passes through the clapboard 104 and is communicated with the upper seal head 102 and the lower seal head 103;

a first heat exchange medium inlet 1011 is formed in the position, close to the upper surface of the partition plate 104, on one side of the shell 101, and a first heat exchange medium outlet 1012 is formed in the upper part of one side of the shell 101;

a second heat exchange medium inlet 1013 is formed at the lower part of one side of the casing 101, and a second heat exchange medium outlet 1014 is formed at a position of one side of the casing 101, which is close to the lower surface of the partition plate 104;

the first heat exchange medium inlet 1011 is connected with the output port of the first conduction oil supply tank 2 through a process pipeline provided with a sixth valve 1006, and the first heat exchange medium outlet 1012 is connected with the input port of the first conduction oil supply tank 2 through a process pipeline provided with a first valve 1001;

the second heat exchange medium inlet 1013 is connected with the output port of the second conduction oil supply tank 3 by a process pipe provided with a second valve 1002, and the second heat exchange medium outlet 1014 is connected with the input port of the second conduction oil supply tank 3 by a process pipe provided with a third valve 1003;

the first heat exchange medium inlet 1011 is also connected with the second heat exchange medium outlet 1014 through a process pipeline provided with a fourth valve 1004, the first heat exchange medium outlet 1012 is connected with the input port of the material transferring pump 4 through a process pipeline provided with a fifth valve 1005, and the second heat exchange medium inlet 1013 is connected with the output port of the material transferring pump 4 through a process pipeline provided with a check valve 2001;

the top of the upper seal head 102 is provided with a feeding port 1021, and the bottom of the lower seal head 103 is provided with a discharging port 1031.

In the present application, as shown in fig. 1, a first shell side is formed between the partition plate 104 and the top of the casing 101, a second shell side is formed between the partition plate 104 and the bottom of the casing 101, and the position of the partition plate 104 can be adjusted according to the actual working condition, so as to achieve the optimal energy utilization efficiency, for example, the position of the partition plate 104 can be adjusted, so that the volume ratio of the first shell side to the second shell side is 3: 1, 2: 1, 1: 2, 1: 3, and the ratio range is not limited to the above example.

In the present application, the non-return valve 2001 only allows liquid to flow from the transfer pump 4 to the second heat exchange medium inlet 1013. In order to adapt to the high-temperature operation condition in the application, the material transferring pump 4 is a high-temperature resistant pump.

When the device is used, before reaction, the first valve 1001, the second valve 1002, the third valve 1003 and the sixth valve 1006 are opened, the fourth valve 1004 and the fifth valve 1005 are closed, high-temperature heat conduction oil in the first heat conduction oil supply tank 2 is supplied to the first heat conduction oil, the temperature is 180-200 ℃, the high-temperature heat conduction oil is input into the first shell side from the first heat exchange medium inlet 1011 through the sixth valve 1006 from the output port of the first heat conduction oil supply tank 2, the reaction tube 105 in the first shell side is heated, the heat conduction oil after heat exchange is output from the first heat exchange medium outlet 1012, flows through the first valve 1001, and then enters the first heat conduction oil supply tank 2 through the input port of the first heat conduction oil supply tank 2.

The normal temperature heat transfer oil in the second heat transfer oil supply tank 3 is input from the output port of the second heat transfer oil supply tank 3 to the second shell pass through the second valve 1002 from the second heat exchange medium inlet 1013, the heat transfer oil does not enter the material transfer pump 4 due to the blocking of the check valve 2001 (the check valve only allows the heat transfer oil to flow from the material transfer pump 4 to the second heat exchange medium inlet 1013), and the heat transfer oil filling the second shell pass is output from the second heat exchange medium outlet 1014, flows through the third valve 1003, and then enters the second heat transfer oil supply tank 3 through the input port of the second heat transfer oil supply tank 3.

When the temperature of the reaction tube 105 reaches the reaction temperature of 200 ℃ (the appropriate reaction temperature), the gaseous reaction substrate enters the upper head 102 from the inlet 1021 of the upper head 102 and then enters the reaction tube 105 filled with the catalyst, and the reaction is started.

After the reaction starts, closing the first valve 1001, the second valve 1002, the third valve 1003 and the sixth valve 1006, opening the fourth valve 1004 and the fifth valve 1005, and starting the material transfer pump 4, wherein at the moment, high-temperature (180-200 ℃) heat transfer oil in the first shell pass is output from a first heat exchange medium outlet 1012, flows through the fifth valve 1005, passes through the material transfer pump 4 and the one-way valve 2001, enters the second shell pass through a second heat exchange medium inlet 1013, and heats the reaction tube 105 in the second shell pass; and the normal temperature heat transfer oil in the second shell pass passes through the fourth valve 1004 from the second heat exchange medium outlet 1014 (since the sixth valve 1006 is closed, the heat transfer oil cannot enter the first heat transfer oil supply tank 2 from the second heat exchange medium outlet 1014), enters the first shell pass from the first heat exchange medium inlet 1011, and cools the reaction tube 105 in the first shell pass, thereby completing a cycle.

The product produced by the reaction flows out of the reaction tube 105 to the lower end enclosure 103 and is output to the next section.

In the reaction process, when the temperatures of the heat conducting oil in the first shell pass and the second shell pass are equal, if the temperature of the heat conducting oil is higher than the high-temperature (230 ℃) of the reaction, the material transferring pump 4 and the fifth valve 1005 are closed, and the first valve 1001 and the second valve 1002 are opened; the third valve 1003 and the sixth valve 1006 are kept closed, the fourth valve 1004 is kept open, at the moment, the normal-temperature heat conduction oil is conveyed to the second shell pass from the second heat conduction oil storage tank 3, then enters the first shell pass, and then enters the first heat conduction oil supply tank 2, and the overheated heat conduction oil in the shell 101 is replaced by the normal-temperature heat conduction oil in the process, so that the effect of cooling the reaction tube 105 is achieved.

Similarly, in the reaction process, when the temperatures of the heat conducting oil in the first shell pass and the second shell pass are equal, if the temperature of the heat conducting oil at the moment is lower than the low temperature (180 ℃) of the reaction, the third valve 1003 and the sixth valve 1006 are opened, and the fourth valve 1004 is closed; the first valve 1001 and the second valve 1002 are kept closed, the material transferring pump 4 and the fifth valve 1005 are kept open, at the moment, high-temperature heat transfer oil is conveyed to the first shell pass from the first heat transfer oil storage tank 2, then enters the second shell pass through the material transferring pump 4, and then enters the second heat transfer oil supply tank 3, the heat transfer oil with the temperature lower than the reaction temperature in the shell 101 is replaced by the high-temperature heat transfer oil in the process, and therefore the effect of heating the reaction tube 105 is achieved.

According to the methyl isopropyl ketone synthesis device, a shell 101 of a reactor 1 is divided into a first shell pass and a second shell pass by a partition plate 104, wherein heat conduction oil with the temperature of 180-200 ℃ serves as a heat exchange medium in the first shell pass, normal-temperature heat conduction oil serves as a heat exchange medium in the second shell pass, after reaction starts, the first shell pass is communicated with the second shell pass, high-temperature heat conduction oil in the first shell pass is transferred into the second shell pass through a material transfer pump 4, low-temperature heat conduction oil in the second shell pass enters the first shell pass, circulation is formed, heat generated by a reaction tube 105 in the first shell pass can be transferred into the second shell pass to be utilized, and the normal-temperature heat conduction oil in the second shell pass can be input into the first shell pass, so that the cooling effect on the reaction tube 105 in the first shell pass is achieved. Therefore, the utilization of heat in the synthesis of the methyl isopropyl ketone is realized, and the waste of energy is reduced. In addition, the first shell pass and the second shell pass can exchange heat independently and can exchange heat uniformly after being communicated, so that the use flexibility of the device is improved.

In a possible implementation manner, temperature sensors are respectively arranged in the first shell pass and the second shell pass, the first valve 1001, the second valve 1002, the third valve 1003, the fourth valve 1004, the fifth valve 1005 and the sixth valve 1006 are all automatic control valves, the temperature sensors and the material transferring pump 4 are all connected to an industrial automatic control system in a factory, and the opening and closing of the valves and the material transferring pump are controlled by a control system according to a temperature value fed back by the temperature sensors (the opening and closing manner is as described above), so that the automatic control of the production process is realized. Therefore, the system not only can save manpower and material resources, but also has the advantages of real-time and convenience.

As shown in fig. 2, a baffle 106 is optionally disposed in the casing 101, one end of the baffle 106 is fixed on the inner wall of the casing 101, and the other end extends into the casing 101 along the radial direction of the casing 101, and the baffle 106 is penetrated by the reaction tube 105.

Alternatively, the baffle 106 is provided in plural, and the plural baffle 106 are arranged in a staggered manner in the casing 101.

In this application, set up baffle 106 and can prolong the runner length of shell side medium, increase the intertube velocity of flow, increase the torrent degree, reach the purpose that improves heat exchanger's heat transfer effect, set up baffle 106 and have certain supporting role to reaction tube 105, set up baffle 106 and still be favorable to reaction tube 105's installation.

The multiple baffle plates 106 can further prolong the length of the flow channel of the shell-side medium, so that the heat exchange efficiency is further improved.

As shown in fig. 3, optionally, the baffle 106 is provided with a plurality of special-shaped holes at the part through which the reaction tubes 105 do not pass.

In this application, set up a plurality of dysmorphism holes on baffling baffle 106, can increase the turbulent motion degree of shell side medium, improve heat exchange efficiency.

Optionally, a gas distributor 5 is arranged in the upper end enclosure 102, and the gas distributor 5 is connected with the material inlet 1021.

In this application, the gas distributor 5 is provided to uniformly distribute the gas material entering the reactor 1 and enter the reaction tube 105 for reaction.

Optionally, the gas distributor 5 is a dendritic gas distributor or a two-row vane gas distributor.

As shown in fig. 4, optionally, a heater 21 is provided in the first conduction oil supply tank 2.

In this application, be provided with heater 21 in the jar 2 is supplied with to first conduction oil, can heat the conduction oil in jar 2 is supplied with to first conduction oil to the required temperature of reaction.

As shown in fig. 4, optionally, the outer wall of the second conduction oil supply tank 3 is provided with a water-cooled jacket 31.

In the application, the water cooling jacket 31 is mainly used for cooling the heat conducting oil in the second heat conducting oil supply tank 3, and the heat exchange medium flowing in the water cooling jacket 31 is normal-temperature circulating water or low-temperature frozen brine.

A synthesizer of methyl isopropyl ketone, its theory of operation is as follows:

when the device is used, before reaction, a first valve 1001, a second valve 1002, a third valve 1003 and a sixth valve are opened, a fourth valve 1004 and a fifth valve 1005 are closed, heat conduction oil in a first heat conduction oil supply tank 2 is heated to a preset temperature by a heater 21, the temperature is 180-200 ℃, the heat conduction oil in the first shell pass is input from a first heat exchange medium inlet 1011 to the first shell pass through a sixth valve 1006 from an output port of the first heat conduction oil supply tank 2, the reaction tube 105 in the first shell pass is heated, the heat conduction oil after heat exchange is output from a first heat exchange medium outlet 1012, flows through the first valve 1001 and then enters the first heat conduction oil supply tank 2 through an input port of the first heat conduction oil supply tank 2, the turbulence degree of the heat conduction oil is increased due to the blocking of a baffle 106 of a special-shaped hole in the flowing process of the heat conduction oil in the first shell pass, and the heat exchange efficiency is improved.

The normal temperature heat transfer oil in the second heat transfer oil supply tank 3 is input from the output port of the second heat transfer oil supply tank 3 to the second shell pass through the second valve 1002 and the second heat transfer medium inlet 1013, the heat transfer oil does not enter the material transfer pump 4 due to the blocking of the check valve 2001 (the check valve only allows the heat transfer oil to flow from the material transfer pump 4 to the second heat transfer medium inlet), and the heat transfer oil filling the second shell pass is output from the second heat transfer medium outlet 1014, flows through the third valve 1003 and then enters the second heat transfer oil supply tank 3 through the input port of the second heat transfer oil supply tank 3.

When the temperature of the reaction tube 105 reaches the reaction temperature of 200 ℃ (suitable reaction temperature), the gaseous reaction substrate uniformly distributes the gaseous material in the upper end enclosure 102 from the feed inlet 1021 of the upper end enclosure 102 through the gas distributor 5, and the gaseous material enters the reaction tube 105 filled with the catalyst, so that the reaction starts.

After the reaction starts, closing the first valve 1001, the second valve 1002, the third valve 1003 and the sixth valve, opening the fourth valve 1004 and the fifth valve 1005, and starting the material transfer pump 4, wherein at the moment, high-temperature (180-200 ℃) heat transfer oil in the first shell pass is output from a first heat exchange medium outlet 1012, flows through the fifth valve 1005, then passes through the material transfer pump 4 and the one-way valve 2001, enters the second shell pass through a second heat exchange medium inlet 1013, and heats the reaction tube 105 in the second shell pass; the normal temperature heat transfer oil in the second shell pass flows through the fourth valve from the second heat exchange medium outlet 1014 (due to the blocking of the sixth valve 1006, the heat transfer oil cannot enter the first heat transfer oil supply tank 2 from the second heat exchange medium outlet 1014), and flows through the first heat exchange medium inlet 1011 to enter the first shell pass, so as to cool the reaction tube 105 in the first shell pass.

The product produced by the reaction flows out of the reaction tube 105 to the lower head 103, and is output to the next process.

In the reaction process, when the temperatures of the heat conducting oil in the first shell pass and the second shell pass are equal, if the temperature of the heat conducting oil is higher than the high-temperature (230 ℃) of the reaction, the material transferring pump 4 and the fifth valve 1005 are closed, and the first valve 1001 and the second valve 1002 are opened; the third valve 1003 and the sixth valve 1006 are kept closed, the fourth valve 1004 is kept open, at the moment, the normal-temperature heat conduction oil is conveyed to the second shell pass from the second heat conduction oil storage tank 3, then enters the first shell pass, and then enters the first heat conduction oil supply tank 2, the overheated heat conduction oil in the shell 101 is replaced by the normal-temperature heat conduction oil in the process, so that the effect of cooling the reaction tube 105 is achieved, and the heat conduction oil with lower temperature entering the first heat conduction oil supply tank 2 is heated to 180-200 ℃ by the heater 21.

Similarly, in the reaction process, when the temperatures of the heat conducting oil in the first shell pass and the second shell pass are equal, if the temperature of the heat conducting oil at the moment is lower than the low temperature (180 ℃) of the reaction, the third valve 1003 and the sixth valve 1006 are opened, and the fourth valve 1004 is closed; the first valve 1001 and the second valve 1002 are kept closed, the material transferring pump 4 and the fifth valve 1005 are kept open, at the moment, high-temperature heat conduction oil is conveyed to the first shell pass from the first heat conduction oil storage tank 2, then enters the second shell pass, and then enters the second heat conduction oil supply tank 3, and in the process, the high-temperature heat conduction oil is used for replacing the heat conduction oil with the temperature lower than the reaction temperature in the shell 101, so that the effect of heating the reaction tube 105 is achieved. The heat transfer oil with higher temperature entering the second heat transfer oil supply tank 3 is cooled to room temperature again through heat exchange of water in the water cooling jacket 31.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims (8)

1. The device for synthesizing the methyl isopropyl ketone is characterized by comprising a reactor (1), a first heat conduction oil supply tank (2), a second heat conduction oil supply tank (3) and a material transfer pump (4);

the reactor (1) comprises a shell (101), an upper seal head (102), a lower seal head (103), a partition plate (104) arranged in the shell (101) and at least one reaction tube (105), wherein the reaction tube (105) penetrates through the partition plate (104) to communicate the upper seal head (102) and the lower seal head (103);

a first shell pass is formed between the partition plate (104) and the top of the shell (101), and a second shell pass is formed between the partition plate (104) and the bottom of the shell (101);

a first heat exchange medium inlet (1011) is formed in the position, close to the upper surface of the partition plate (104), of the shell (101), and a first heat exchange medium outlet (1012) is formed in the upper portion of the shell (101);

a second heat exchange medium inlet (1013) is formed in the lower part of the shell (101), and a second heat exchange medium outlet (1014) is formed in the position, close to the lower surface of the partition plate (104), of the shell (101);

the first heat exchange medium inlet (1011) is connected with the first heat conduction oil supply tank (2) through a sixth valve (1006), and the first heat exchange medium outlet (1012) is connected with the first heat conduction oil supply tank (2) through a first valve (1001);

the second heat exchange medium inlet (1013) is connected with the second heat transfer oil supply tank (3) through a second valve (1002), and the second heat exchange medium outlet (1014) is connected with the second heat transfer oil supply tank (3) through a third valve (1003);

the first heat exchange medium inlet (1011) is also connected with the second heat exchange medium outlet (1014) through a fourth valve (1004), the first heat exchange medium outlet (1012) is also connected with the material transferring pump (4) through a fifth valve (1005), and the second heat exchange medium inlet (1013) is connected with the material transferring pump (4) through a one-way valve (2001);

the top of the upper sealing head (102) is provided with a feeding port (1021), and the bottom of the lower sealing head (103) is provided with a discharging port (1031).

2. The apparatus for synthesizing methyl isopropyl ketone according to claim 1, wherein a baffle (106) is disposed in the shell (101), one end of the baffle (106) is fixed on the inner wall of the shell (101), the other end of the baffle (106) extends radially inward of the shell (101) and the baffle (106) is penetrated by the reaction tube (105).

3. The apparatus for synthesizing methyl isopropyl ketone according to claim 2, wherein the baffle plate (106) has a plurality of irregularly shaped holes at the portion thereof not penetrated by the reaction tube (105).

4. The apparatus for synthesizing methyl isopropyl ketone according to claim 1, wherein a gas distributor (5) is arranged in the upper sealing head (102), and the gas distributor (5) is connected with the feed inlet (1021).

5. Apparatus for the synthesis of methyl isopropyl methanone according to claim 4, characterized in that said gas distributor (5) is a dendritic gas distributor or a double row blade gas distributor.

6. The apparatus for synthesizing methyl isopropyl ketone according to claim 1, wherein a heater (21) is provided in the first conduction oil supply tank (2).

7. The apparatus for synthesizing methyl isopropyl ketone according to any one of claims 1 to 6, wherein the outer wall of the second conduction oil supply tank (3) is provided with a water-cooled jacket (31).

8. The apparatus for synthesizing methyl isopropyl ketone according to claim 2, wherein the baffle (106) is provided in a plurality, and the plurality of baffles (106) are arranged in a staggered manner in the housing (101).

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