Gas-liquid reaction system

Abstract

The embodiment of the utility model provides a gas-liquid reaction system, which comprises: a reactor, the reactor is provided with a mixed reaction chamber, and a reaction gas inlet, a solvent inlet, a reacted gas outlet and a recycle gas inlet which are communicated with the mixed reaction chamber; the driving part is communicated with the post-reaction gas outlet and the circulating gas inlet, and the driving part circularly guides the post-reaction gas to the circulating gas inlet; the circulating gas detection element and the reaction gas detection element are used for detecting gas components and corresponding concentrations and flows of the reacted gas outlet and the reacted gas inlet respectively, and the control element is used for adjusting the amount of the reacted gas input into the mixed reaction cavity based on detection results of the circulating gas detection element and the reaction gas detection element. The concentration of different components of the reaction gas in the mixed reaction cavity is kept at a preset threshold value. According to the embodiment of the invention, the concentration of the reaction gas dissolved in the solvent in the reactor can be increased, the gas concentration of the reaction gas introduced into the reactor is controlled, and the reaction efficiency is improved.

Description

Technical Field

[0001] The disclosed embodiments relate to the technical field of chemical reaction devices, and in particular to a gas-liquid reaction system. Background Art

[0002] In chemical experiments and production practices, gas-phase reactions can only be carried out under the action of specific catalysts. However, due to the limitation of the reaction equilibrium constant, there are problems of low conversion rate and poor selectivity. Therefore, the reaction gas needs to be dissolved in a special solvent to prepare it into a liquid phase state, so that the gas-phase reaction is transformed into a liquid-phase reaction, and then the reaction occurs under the action of the catalyst. In liquid-phase reactions, the concentration of the reaction gas dissolved in the solvent becomes a key factor affecting the reaction process.

[0003] In the prior art, the concentration of the reaction gas dissolved in the reaction solvent is not high enough, resulting in low reaction efficiency, and the amount of gas introduced into the reactor cannot be measured, resulting in the inability to ensure efficient reaction, and as the reaction progresses, the deactivated catalyst cannot be transferred out in time, which systematically leads to a decrease in the efficiency of the reactor. Therefore, it is urgent to provide a solution to solve the above technical problems. Utility Model Content

[0004] In view of this, an embodiment of the present disclosure provides a gas-liquid reaction system to solve the technical defects existing in the prior art.

[0005] According to a first aspect of an embodiment of the present disclosure, a gas-liquid reaction system is provided, comprising:

[0006] A reactor, wherein the reactor has a mixing reaction chamber and a reaction gas inlet, a solvent inlet, a post-reaction gas outlet, and a circulating gas inlet connected to the mixing reaction chamber;

[0007] A driving member, the driving member is connected to the post-reaction gas outlet and the circulating gas inlet, and the driving member is configured to circulate the post-reaction gas to the circulating gas inlet;

[0008] A circulating gas detection element, wherein the circulating gas detection element is configured to detect gas components and concentrations of different components at the outlet of the reacted gas;

[0009] A reaction gas detection element, wherein the reaction gas detection element is configured to detect gas components and flow rates of different components at the reaction gas inlet;

[0010] A control element is configured to adjust the amount of reaction gas input to the mixed reaction chamber based on the detection results of the circulating gas detection element and the reaction gas detection element, so that the concentration of different components of the reaction gas in the mixed reaction chamber is maintained at a preset threshold.

[0011] In one embodiment of the present disclosure, a sieve plate is provided in the mixing reaction chamber, a plurality of sieve holes are provided on the sieve plate, the sieve plate divides the mixing reaction chamber into an upper space and a lower space, and the reactor further has a catalyst inlet connected to the upper space;

[0012] The mesh holes on the mesh plate are configured to allow deactivated catalyst to pass from the upper space into the lower space.

[0013] In one embodiment of the present disclosure, a baffle is connected to the lower surface of the sieve plate, and the baffle includes a connecting portion and a shielding portion.

[0014] The connecting portion is configured to connect the shielding portion to the sieve plate;

[0015] The shielding portion is a plate surface perpendicular to the flow direction of the gas in the mixed reaction chamber, and is used to shield the deactivated catalyst carried by the gas in the mixed reaction chamber during the flow from the bottom to the top.

[0016] In one embodiment of the present disclosure, the gas-liquid reaction system includes a gas distributor, which is disposed below the sieve plate in the mixing reaction chamber and is connected to the reaction gas inlet and / or the circulating gas inlet.

[0017] In one embodiment of the present disclosure, the gas-liquid reaction system includes two gas distributors, and the two gas distributors are respectively connected to the reaction gas inlet and the circulation gas inlet.

[0018] In one embodiment of the present disclosure, the gas-liquid reaction system includes at least two reaction gas inlet pipelines arranged in parallel with each other, at least two of the reaction gas inlet pipelines are connected to the mixed reaction chamber through the reaction gas inlet, and at least two of the reaction gas inlet pipelines are configured to pass the same or different reaction gases, and each of the reaction gas inlet pipelines is provided with the reaction gas detection element.

[0019] In one embodiment of the present disclosure, the reactor is further provided with a catalyst inlet, and the catalyst inlet is used to introduce fresh catalyst into the mixing reaction chamber.

[0020] In one embodiment of the present disclosure, the gas-liquid reaction system further comprises:

[0021] A gas-liquid separator, wherein the gas inlet of the gas-liquid separator is connected to the post-reaction gas outlet, and the gas outlet of the gas-liquid separator is connected to the gas inlet of the driving member; and

[0022] The gas-liquid separator is configured to separate the post-reaction gas outputted from the post-reaction gas outlet and the liquid carried therein.

[0023] In one embodiment of the present disclosure, the gas-liquid reaction system further includes a stirring device, which is disposed in the mixing reaction chamber and is configured to stir the raw materials in the mixing reaction chamber.

[0024] In one embodiment of the present disclosure, the gas-liquid reaction system further includes a slag discharge device, which is connected to the bottom of the reactor and is configured to receive the deactivated catalyst discharged from the reactor and discharge the deactivated catalyst.

[0025] One beneficial effect of the disclosed embodiment is that the disclosed embodiment introduces the reacted gas in the reactor into the circulating gas inlet through the driving member, so that the gas generated from the reactor can be introduced into the reactor again for reuse, and at the same time, the concentration of the reaction gas dissolved in the solvent in the reactor can be increased, thereby promoting the reaction in the positive direction and improving the reaction efficiency. Through the coordination between the circulating gas detection element, the reaction gas detection element and the control element, the concentration of the reaction gas introduced into the reactor is controlled according to the concentration of the generated gas components, so that the concentration of the gas participating in the reaction in the reactor is maintained at an optimal ratio, further improving the efficiency of the chemical reaction in the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a gas-liquid reaction system provided by an embodiment of the present disclosure;

[0027] Figure 2 is a schematic diagram of the structure of a gas-liquid reaction system provided by another embodiment of the present disclosure;

[0028] Figure 3 It is a schematic diagram of the structure of a sieve plate and a baffle in a gas-liquid reaction system provided in another embodiment of the present disclosure.

[0029] Figures 1 to 3 The one-to-one correspondence between the component names and the reference numerals is as follows:

[0030] 1. Reactor; 11. Mixing reaction chamber; 12. Reaction gas inlet; 121. Reaction gas distributor; 122. First reaction gas inlet pipeline; 123. Second reaction gas inlet pipeline; 13. Solvent inlet; 14. Post-reaction gas outlet; 15. Circulation gas inlet; 151. Circulation gas distributor; 152. Circulation gas inlet pipeline; 16. Catalyst inlet; 17. Sieve plate; 18. Baffle; 181. Connecting part; 182. Shielding part; 2. Driving part; 3. Circulation gas detection element; 4. Reaction gas detection element; 5. Control element; 6. Gas-liquid separator; 61. Gas inlet; 62. Gas outlet; 63. Liquid outlet; 7. Stirring device; 8. Slag discharge device. DETAILED DESCRIPTION

[0031] Many specific details are described in the following description to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present disclosure, so the present disclosure is not limited by the specific implementation disclosed below.

[0032] The terms used in one or more embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of the present disclosure. The singular forms of "a", "said" and "the" used in one or more embodiments of the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of the present disclosure refers to and includes any or all possible combinations of one or more associated listed items.

[0033] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of the present disclosure, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of the present disclosure, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0034] In chemical experiments and production practices, in order to improve the conversion rate, the gas is dissolved in a solvent for reaction, that is, the gas phase reaction is converted into a liquid phase reaction. However, in the liquid phase reaction, the concentration of the reaction gas dissolved in the solvent becomes an important factor affecting the reaction process. In the actual reaction, the concentration of the reaction gas participating in the reaction dissolved in the solvent is not high enough, and the concentration of the reaction gas participating in the reaction cannot be measured, resulting in a poor ratio of the reaction gas participating in the reaction, leading to the problem of low reaction efficiency.

[0035] To this end, the present disclosure provides a gas-liquid reaction system, which is described in detail in the following embodiments. Figure 1 , Figure 1 A schematic structural diagram of a gas-liquid reaction system provided according to an embodiment of the present disclosure is shown, which specifically includes: a reactor 1, a driving member 2, a circulating gas detection element 3, a reaction gas detection element 4 and a control element 5.

[0036] Specifically, the reactor 1 has a mixing reaction chamber 11 and a reaction gas inlet 12, a solvent inlet 13, a post-reaction gas outlet 14, and a circulating gas inlet 15 connected to the mixing reaction chamber 11; the mixing reaction chamber 11 allows the reaction gas entering through the reaction gas inlet 12, the solvent entering through the solvent inlet 13, and the post-reaction gas entering through the circulating gas inlet 15 to mix, and allows the mixed raw materials to react in the mixing reaction chamber 11, wherein the reaction gas inlet 12 can be connected to a pump to introduce gas. Preferably, in the embodiment of the present disclosure, the upper part of the reactor 1 is cylindrical and the lower part is conical, which can be conducive to the discharge of solid waste deposited at the bottom during the reaction process.

[0037] The driving member 2 is connected to the post-reaction gas outlet 14 and the circulating gas inlet 15, and is configured to circulate the post-reaction gas to the circulating gas inlet 15; the driving member 2 can be a gas compressor, which can provide power for the post-reaction gas to re-enter the mixing reaction chamber 11 from the circulating gas inlet 15.

[0038] The circulating gas detection element 3 is configured to detect the gas components and the concentrations of different components at the post-reaction gas outlet 14; the reaction gas detection element 4 is configured to detect the gas components and the concentrations of different components at the reaction gas inlet 12; the control element 5 is configured to adjust the amount of reaction gas input to the mixed reaction chamber 11 based on the detection results of the circulating gas detection element 3 and the reaction gas detection element 4, so that the concentrations of different components of the reaction gas in the mixed reaction chamber 11 are maintained at a preset threshold.

[0039] The circulating gas detection element 3 can be connected to the post-reaction gas outlet 14 to detect the gas components contained in the gas obtained after the reaction, as well as the concentrations of gases of different components. The reaction gas detection element 4 can be connected to the reaction gas inlet 12 to detect the gas flow of different components entering the mixed reaction chamber 11. The control element 5 can obtain the post-reaction gas concentration data detected by the circulating gas detection element 3, and perform logical calculations on the acquired data, that is, the control element 5 compares the concentration of each component in the post-reaction gas with the concentration of each component generated to achieve the best reaction effect, determines the content of each component of the required reaction gas according to the comparison result, controls the flow control valve of the reaction gas inlet 12, and adjusts the flow of each component of the input reaction gas by controlling the flow control valve to achieve the content of each component required for the best reaction effect. Among them, the preset threshold value is the concentration of different component gases participating in the reaction when the reaction effect is optimal.

[0040] In the disclosed embodiment, the gas generated in the reactor 1 is guided to the mixed reaction chamber 11 for reuse by the driving member 2, and at the same time, the concentration of the reaction gas dissolved in the mixed reaction chamber 11 can be increased, so that the reaction proceeds in the positive direction, and the reaction efficiency is improved. The amount of gas introduced into the reactor 1 is controlled by the reaction gas detection element 4, the circulating gas detection element 3 and the control element 5, so that the gas concentration of different components participating in the reaction is optimal, and the reaction efficiency is further improved.

[0041] Furthermore, since the dissolved gas in the mixed reaction chamber 11 can react only under the condition of adding a catalyst, and it is difficult to separate the deactivated catalyst during the reaction, a sieve plate 17 is provided in the mixed reaction chamber 11. Figure 2 and Figure 3 A plurality of sieve holes are provided on the sieve plate 17, and the sieve plate 17 divides the mixing reaction chamber 11 into an upper space and a lower space; the reactor 1 also has a catalyst inlet 16 connected to the upper space, and the sieve holes on the sieve plate 17 are configured to allow the deactivated catalyst to pass from the upper space into the lower space.

[0042] Specifically, the catalyst added to the mixed reaction chamber 11 can be a liquid phase catalyst or a solid phase catalyst, wherein the liquid phase catalyst will be converted into a solid state after being deactivated as the reaction proceeds, and the solid phase catalyst will be broken after being deactivated as the reaction proceeds, that is, the particle size of the deactivated solid phase catalyst is smaller than the particle size of the active solid phase catalyst. The aperture of the sieve plate 17 is designed according to the particle size of the catalyst. For example, when a liquid phase catalyst is used, the aperture of the sieve plate 17 is greater than or equal to the particle size of the deactivated catalyst. When a solid phase catalyst is used, the aperture of the sieve plate 17 is greater than or equal to the particle size of the deactivated catalyst, and is less than or equal to the particle size of the active catalyst. The above design enables the sieve plate 17 to filter the deactivated catalyst.

[0043] The shape of the sieve plate 17 is designed according to the shape of the cross section of the mixing reaction chamber 11 in the horizontal direction. The edge of the sieve plate 17 fits with the inner wall of the mixing reaction chamber 11 to divide the mixing reaction chamber 11 into an upper space and a lower space.

[0044] In the disclosed embodiment, by providing a sieve plate 17 in the reactor 1, the deactivated catalyst can be effectively filtered out to ensure the continuous operation of the system.

[0045] Furthermore, since the deactivated catalyst will be deposited at the bottom of the reactor 1 after passing through the sieve plate 17, and the reaction gas is also introduced from the bottom of the reactor 1, when the reaction gas flows upward, the deactivated catalyst deposited at the bottom may be carried to the upper space. Therefore, a baffle 18 is connected to the lower surface of the sieve plate 17, and the baffle 18 includes a connecting portion 181 and a shielding portion 182. The connecting portion 181 is constructed to connect the shielding portion 182 to the sieve plate 17; the shielding portion 182 is a plate surface perpendicular to the gas flow direction in the mixing reaction chamber 11, and is used to shield the deactivated catalyst carried by the gas in the mixing reaction chamber 11 during the flow from the bottom to the top.

[0046] Specifically, the shape of the connecting portion 181 may be a column or a plate, and the size of the shielding portion 182 may be set according to actual conditions, which is not limited in this embodiment.

[0047] The embodiment of the present disclosure provides a baffle 18 at the bottom of the sieve plate 17, which can effectively prevent the deactivated catalyst deposited at the bottom of the reactor 1 from being diverted back to the upper space of the mixing reaction chamber 11 along with the introduced gas, and can discharge the deactivated catalyst in time to improve the reaction efficiency.

[0048] In order to allow the gas introduced into the mixing reaction chamber 11 to be fully dissolved in the solvent, see Figure 2 The gas-liquid reaction system also includes a gas distributor, which is provided with a plurality of gas channels; the gas distributor is arranged below the sieve plate 17 in the mixed reaction chamber 11 and is connected to the reaction gas inlet 12 and / or the circulating gas inlet 15, the gas distributor is in full contact with the solvent in the mixed reaction chamber 11, and is configured to introduce gas into the mixed reaction chamber 11.

[0049] Specifically, the gas passes through several gas pipes of the gas distributor into the mixing reaction chamber 11, which can increase the contact area between the gas and the solvent. After the gas continues to flow upward, it will pass through the sieve plate 17. The sieve holes of the sieve plate 17 can further disperse the gas and increase the contact between the gas and the solvent.

[0050] In the disclosed embodiment, by arranging a gas distributor below the sieve plate 17, the contact area between the gas and the solvent can be effectively increased, so that the gas is fully dissolved in the solvent, the concentration of the gas dissolved in the solvent is increased, and the reaction efficiency is improved.

[0051] Furthermore, there are two types of gas sources in the reactor 1, one is the gas directly introduced into the reactor 1 from the reaction gas source, and the other is the gas generated in the mixed reaction chamber 11 is re-introduced into the mixed reaction chamber 11 through the driving member 2. In this regard, the gas-liquid reaction system includes two gas distributors, which are a reaction gas distributor 121 and a circulation gas distributor 151; the two gas distributors are respectively connected to the reaction gas inlet and the circulation gas inlet.

[0052] Specifically, the reaction gas distributor 121 is connected to the first reaction gas inlet pipeline 122 and the second reaction gas inlet pipeline 123 through the reaction gas inlet 12, and the reaction gas distributor 121 is configured to introduce the first reaction gas and the second reaction gas into the mixed reaction chamber 11; the circulating gas distributor 151 is connected to the circulating gas inlet pipeline 152 through the circulating gas inlet 15, and the circulating gas distributor 151 is configured to pass the post-reaction gas guided by the driving member 2 into the mixed reaction chamber 11.

[0053] The first reaction gas inlet pipeline 122 is connected to a first reaction gas generating device or a storage tank and other equipment, and the second reaction gas inlet pipeline 123 is connected to a second reaction gas generating device or a storage tank and other equipment. After the first reaction gas inlet pipeline 122 and the second reaction gas inlet pipeline 123 are combined, they are passed into the mixed reaction chamber 11 from the reaction gas inlet port of the reactor 1, and are connected to the reaction gas distributor 121 inside the mixed reaction chamber 11, so that the first reaction gas and the second reaction gas enter the mixed reaction chamber 11 through the reaction gas distributor 121; one end of the circulating gas inlet pipeline 152 is connected to the post-reaction gas outlet 14 of the reactor 1, and the other end is passed into the mixed reaction chamber 11 from the circulating gas inlet port of the reactor 1, and is connected to the circulating gas distributor 151 in the mixed reaction chamber 11, so that the gas generated in the mixed reaction chamber 11 enters the mixed reaction chamber 11 through the circulating gas inlet pipeline 152 and the circulating gas distributor 151.

[0054] In the embodiment of the present disclosure, by setting up a reaction gas distributor 121 and a circulating gas distributor 151, the reaction gas introduced from the outside and the post-reaction gas generated from the mixed reaction chamber 11 can be respectively introduced into the mixed reaction chamber 11, thereby increasing the contact area between the gas and the solvent, allowing the gas introduced into the mixed reaction chamber 11 to be more fully dissolved, thereby improving the reaction efficiency.

[0055] Furthermore, since there are two sources of reaction gas, the reaction gas detection element 4 also needs to detect the gas flow in the two inlet pipelines respectively. The gas-liquid reaction system includes at least two reaction gas inlet pipelines arranged in parallel with each other, and at least two of the reaction gas inlet pipelines are connected to the mixing reaction chamber 11 through the reaction gas inlet 12, and at least two reaction gas inlet pipelines are configured to pass the same or different reaction gases, and each reaction gas inlet pipeline is provided with a reaction gas detection element 4.

[0056] In one embodiment of the present disclosure, at least two reaction gas inlet pipelines include a first reaction gas inlet pipeline and a second reaction gas inlet pipeline, and the reaction gas detection element 4 is used to detect the gas flow in the first reaction gas inlet pipeline 122 and the second reaction gas inlet pipeline 123 respectively.

[0057] Furthermore, flow control valves are respectively provided on the first reaction gas inlet pipeline 122 and the second reaction gas inlet pipeline 123. According to the analysis result of the input and output gases in the mixed reaction chamber 11 by the control element 5, the flow control valves on the first reaction gas inlet pipeline 122 and the second reaction gas inlet pipeline 123 are controlled, thereby controlling the concentrations of different gas components participating in the reaction in the mixed reaction chamber 11.

[0058] In the embodiment of the present disclosure, the reaction gas detection element 4 detects the gas flow in the first air inlet pipeline and the second air inlet pipeline respectively, which can make the detected gas content more accurate, and thus can accurately control the concentration of different components of reaction gas input into the mixed reaction chamber 11, so that the reaction effect is optimized.

[0059] Furthermore, in order to replenish fresh catalyst in time after the deactivated catalyst in the reactor 1 is discharged, see Figure 2 The reactor 1 is also provided with a catalyst inlet 16 , and the catalyst inlet 16 is used to introduce fresh catalyst into the mixing reaction chamber 11 .

[0060] The embodiment of the present disclosure provides a catalyst inlet 16, so that in the event of deactivated catalyst, fresh catalyst can be added to the mixing reaction chamber 11 in a timely manner to prevent the deactivated catalyst from affecting the reaction efficiency.

[0061] Furthermore, since the mixed reaction chamber 11 contains liquid, the generated gas will inevitably carry liquid, so the gas-liquid reaction system also includes a gas-liquid separator 6, see Figure 2Specifically, the gas-liquid separator 6 includes a gas inlet 61, a gas outlet 62 and a liquid outlet 63. The gas inlet 61 of the gas-liquid separator 6 is connected to the post-reaction gas outlet 14, and the gas outlet 62 of the gas-liquid separator 6 is connected to the gas inlet of the driving member 2; and the gas-liquid separator 6 is configured to separate the post-reaction gas outputted from the post-reaction gas outlet 14 and the liquid carried by it, and the post-reaction gas obtained after separation enters the driving member 2 from the gas outlet 62, and the liquid obtained after separation is discharged from the liquid outlet 63, and the separated liquid can also be recovered and reused.

[0062] In the embodiment of the present disclosure, by setting a gas-liquid separator 6 between the post-reaction gas outlet 14 and the driving member 2, the liquid carried in the post-reaction gas can be separated, the liquid content in the gas can be reduced, and the gas introduced into the mixed reaction chamber 11 can be purer. In addition, the gas-liquid separator 6 can also play a buffering role on the gas output after the reaction.

[0063] In order to make the reaction gas in the mixed reaction chamber 11 fully dissolved in the solvent and the dissolved liquid fully contact with the catalyst, the gas-liquid reaction system further includes a stirring device 7, see Figure 2 The stirring device 7 is disposed in the mixing reaction chamber 11 and is configured to stir the raw materials in the mixing reaction chamber 11 .

[0064] Specifically, the types of the stirring device 7 include propeller type, turbine type, magnetic stirring and the like. In addition, it may also be other devices in the prior art that can achieve a stirring function, and the embodiments of the present disclosure are not limited thereto.

[0065] Furthermore, after filtering through the sieve plate 17, a large amount of deactivated catalyst will be deposited at the bottom of the mixed reaction chamber 11. In order not to affect the progress of the reaction, the deactivated catalyst needs to be discharged. Therefore, the gas-liquid reaction system also includes a slag discharge device 8, which is connected to the bottom of the reactor 1 and is configured to receive the deactivated catalyst discharged from the reactor 1 and discharge the deactivated catalyst.

[0066] See also Figure 2 Specifically, a discharge port is further provided at the bottom of the reactor 1, and the slag discharge device 8 can be a lock bucket. The lock bucket is connected to the discharge port at the bottom of the reaction device through a pipeline, and a first discharge valve is provided between the discharge port and the lock bucket. The discharge port at the bottom of the lock bucket is provided with a second discharge valve. When the volume of the deactivated catalyst deposited in the reaction device exceeds the preset volume, the second discharge valve is opened, the first discharge valve is closed, and the deactivated catalyst in the lock bucket is discharged. After the discharge, the second discharge valve is closed, and then the first discharge valve is opened to discharge the deactivated catalyst in the reactor 1 into the lock bucket. After all the deactivated catalyst in the reactor 1 is discharged into the lock bucket, the first discharge valve is closed.

[0067] In the embodiment of the present disclosure, by providing a slag discharge device 8, it is easier to control the discharge of the deactivated catalyst in the reactor 1, and prevent the liquid in the reactor 1 from leaking onto the ground or other devices when the deactivated catalyst in the reactor 1 is discharged, thereby preventing the other devices from being affected.

[0068] The reaction device is also provided with a product discharge port for discharging and collecting the product obtained after the reaction.

[0069] One beneficial effect of the disclosed embodiment is that the disclosed embodiment introduces the gas from the post-reaction gas outlet 14 of the reactor 1 into the circulating gas inlet 15 through the driving member 2, so that the gas generated from the reactor 1 can be introduced into the reactor 1 again for reuse, and at the same time, the concentration of the reaction gas dissolved in the solvent in the reactor 1 can be increased, thereby promoting the reaction in the positive direction and improving the reaction efficiency. Through the coordination between the circulating gas detection element 3, the reaction gas detection element 4 and the control element 5, the concentration of the reaction gas introduced into the reactor 1 is controlled according to the concentration of the generated gas components, so that the concentration of the gas participating in the reaction in the reactor 1 is maintained at the optimal ratio, further improving the efficiency of the chemical reaction in the reactor 1.

[0070] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should know that the embodiments of the present disclosure are not limited by the described action sequence, because according to the embodiments of the present disclosure, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of the present disclosure.

[0071] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0072] The preferred embodiments of the present disclosure disclosed above are only used to help explain the present disclosure. The optional embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the embodiments of the present disclosure. The present disclosure selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of the present disclosure, so that technicians in the relevant technical field can well understand and use the present disclosure. The present disclosure is limited only by the claims and their full scope and equivalents.

Claims

1. A gas-liquid reaction system, characterized in that: The gas-liquid reaction system comprises: A reactor (1), the reactor (1) comprising a mixing reaction chamber (11), and a reaction gas inlet (12), a solvent inlet (13), a post-reaction gas outlet (14), and a circulating gas inlet (15) connected to the mixing reaction chamber (11); A driving member (2), the driving member (2) being connected to the post-reaction gas outlet (14) and the circulating gas inlet (15), the driving member (2) being configured to circulate the post-reaction gas to the circulating gas inlet (15); A circulating gas detection element (3), the circulating gas detection element (3) being configured to detect gas components and concentrations of different components at the post-reaction gas outlet (14); A reaction gas detection element (4), the reaction gas detection element (4) being configured to detect gas components and flow rates of different components at the reaction gas inlet (12); A control element (5), the control element (5) being configured to adjust the amount of reaction gas input to the mixed reaction chamber (11) based on the detection results of the circulating gas detection element (3) and the reaction gas detection element (4), so as to keep the concentrations of different components of the reaction gas in the mixed reaction chamber (11) at a preset threshold value.

2. The gas-liquid reaction system according to claim 1, characterized in that: A sieve plate (17) is arranged in the mixing reaction chamber (11), the sieve plate (17) is provided with a plurality of sieve holes, the sieve plate (17) divides the mixing reaction chamber (11) into an upper space and a lower space, and the reactor (1) further comprises a catalyst inlet (16) connected to the upper space; The mesh holes on the sieve plate (17) are configured to allow deactivated catalyst to pass from the upper space into the lower space.

3. The gas-liquid reaction system according to claim 2, characterized in that: A baffle (18) is connected to the lower surface of the sieve plate (17), wherein the baffle (18) comprises a connecting portion (181) and a shielding portion (182). The connecting portion (181) is configured to connect the shielding portion (182) to the sieve plate (17); The shielding portion (182) is a plate surface perpendicular to the flow direction of the gas in the mixing reaction chamber (11), and is used to shield the deactivated catalyst carried by the gas in the mixing reaction chamber (11) during the flow from the bottom to the top.

4. The gas-liquid reaction system according to claim 2, characterized in that: The gas-liquid reaction system comprises a gas distributor, which is arranged below the sieve plate (17) in the mixing reaction chamber (11) and is connected to the reaction gas inlet (12) and / or the circulating gas inlet (15).

5. The gas-liquid reaction system according to claim 4, characterized in that: The gas-liquid reaction system comprises two gas distributors, and the two gas distributors are respectively connected to the reaction gas inlet (12) and the circulation gas inlet (15).

6. The gas-liquid reaction system according to claim 1, characterized in that: The gas-liquid reaction system comprises at least two reaction gas inlet pipelines arranged in parallel with each other, at least two of the reaction gas inlet pipelines are connected to the mixed reaction chamber (11) through the reaction gas inlet (12), and at least two of the reaction gas inlet pipelines are configured to pass the same or different reaction gases, and each of the reaction gas inlet pipelines is provided with the reaction gas detection element (4).

7. The gas-liquid reaction system according to claim 1, characterized in that: The reactor (1) is also provided with a catalyst inlet (16), and the catalyst inlet (16) is used to introduce fresh catalyst into the mixing reaction chamber (11).

8. The gas-liquid reaction system according to claim 1, characterized in that: The gas-liquid reaction system also includes: a gas-liquid separator (6), wherein the gas inlet (61) of the gas-liquid separator (6) is in communication with the post-reaction gas outlet (14), and the gas outlet (62) of the gas-liquid separator (6) is in communication with the gas inlet of the driving member (2); and The gas-liquid separator (6) is configured to separate the post-reaction gas output from the post-reaction gas outlet (14) and the liquid carried by it.

9. The gas-liquid reaction system according to claim 1, characterized in that: The gas-liquid reaction system further comprises a stirring device (7), wherein the stirring device (7) is arranged in the mixing reaction chamber (11) and is configured to stir the raw materials in the mixing reaction chamber (11).

10. The gas-liquid reaction system according to claim 1, characterized in that: The gas-liquid reaction system further comprises a slag discharge device (8), wherein the slag discharge device (8) is connected to the bottom of the reactor (1) and is configured to receive the deactivated catalyst discharged from the reactor (1) and discharge the deactivated catalyst.

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