High-efficiency separation and purification system for methyl tert-butyl ether

Abstract

The invention discloses a methyl tert-butyl ether high-efficiency separation and purification system which mainly comprises a reaction kettle, openings are formed in the upper portion and the lower portion of the reaction kettle, a top cover used for sealing is installed on the upper portion of the reaction kettle, and a bottom cover which can move up and down in a reciprocating mode and is used for sealing is installed in the lower portion of the reaction kettle. And a baffle plate is rotationally mounted at the middle position in the reaction kettle. The reaction kettle has the advantages that the reaction kettle is used as an equipment main body, the baffle capable of freely rotating is mounted in the reaction kettle, the heating plate capable of reciprocating up and down is mounted below the baffle, and the heating plate is obliquely arranged, so that a solution is uniformly heated by the heating plate and can be stirred through rotation of the baffle and up-down movement of the heating plate; the heating efficiency and the separation rate of the methyl tert-butyl ether are improved, the bottom cover capable of moving up and down in a reciprocating mode is installed below the reaction kettle, the space in the reaction kettle can be changed through vertical movement of the bottom cover, the effect of pressurizing the interior of the kettle can be achieved, and the separation condition of the methyl tert-butyl ether is met.

Description

Technical Field

[0001] The invention relates to the technical field of chemical separation and purification, in particular to a high-efficiency separation and purification system for methyl tert-butyl ether. Background Art

[0002] Methyl tert-butyl ether is an organic compound, a colorless transparent liquid, insoluble in water, easily soluble in ethanol and ether. It is an excellent high-octane gasoline additive and anti-knock agent.

[0003] Separating and purifying methyl tert-butyl ether can improve the purity of the solution, improve the utilization rate of methyl tert-butyl ether, and improve the combustion efficiency. The currently commonly used method for separating and purifying methyl tert-butyl ether is mostly distillation, in which methyl tert-butyl ether is mixed with a solvent and then distilled. The methyl tert-butyl ether is vaporized by controlling appropriate temperature and pressure, and then the pure methyl tert-butyl ether is collected by condensation. However, the separation and purification devices currently used are mostly two independent devices connected by a pipeline to achieve gas transfer, which increases the occupied space of the entire device, and more joints are prone to air leakage, resulting in poor integrity and compactness of the entire set of equipment, affecting use. Based on this, the present application proposes a high-efficiency separation and purification system for methyl tert-butyl ether, which has strong integrity and compactness, can realize multiple processes such as separation, purification and collection, is convenient to use and place, and solves the above-mentioned problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a system for efficiently separating and purifying methyl tert-butyl ether to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] (II) Technical solution

[0007] In order to solve the above-mentioned related problems and achieve the desired purpose, the present invention provides the following technical solutions: A methyl tert-butyl ether efficient separation and purification system, comprising a reactor, which is open at both the upper and lower parts, a top cover for sealing is installed on the upper part of the reactor, a bottom cover for sealing and capable of reciprocating up and down is installed inside the reactor, a baffle is installed in the middle of the reactor, and a gas space and a liquid space are formed at the upper and lower parts thereof, respectively, a plurality of circular array air ducts are installed on the baffle, and the plurality of air ducts are all in a Z shape as a whole, with one part located above the baffle and the other part located below the baffle. Located below the baffle, multiple air pores in uniform arrays are opened below the outside of the multiple air ducts, filter elements are installed inside the multiple air ducts, a heating plate is installed below the baffle, multiple purification tubes in a circular array are installed outside the reactor, and the two are arranged in parallel. The multiple purification tubes are connected to the reactor through connecting tubes, spiral condensers are installed inside the multiple purification tubes, the water inlets of the multiple spiral condensers are all at the bottom and the water outlets are all at the top, and water inlet valves and water outlet valves are installed at the water inlet and the water outlet respectively, and liquid outlet valves are installed below the outside of the multiple purification tubes.

[0008] Preferably, a plurality of fixed plates in a circular array are installed above the outside of the reaction kettle, and the plurality of purification tubes are respectively installed on the plurality of fixed plates.

[0009] Preferably, a plurality of mounting holes in a circular array are provided below the exterior of the reactor, each of which is equipped with a first telescopic cylinder, and a plurality of L-shaped plates in a circular array are installed on the bottom surface of the bottom cover, which are respectively installed at the output ends of the plurality of first telescopic cylinders.

[0010] Preferably, a solenoid valve is installed at the middle position below the bottom cover, and a plurality of grooves are provided on the side arc surface of the bottom cover, and a first sealing ring and a second sealing ring are respectively installed inside the plurality of grooves.

[0011] Preferably, a fixing tube is installed at the middle position of the top surface of the baffle, a second telescopic cylinder is installed inside the fixing tube, the heating plate is installed at the output end of the second telescopic cylinder, and the plate body of the heating plate is placed at an angle.

[0012] Preferably, a third sealing ring is installed on the side arc surface of the baffle, and the outer surface of the third sealing ring is in contact with the inner wall of the reaction kettle.

[0013] Preferably, a first gear is installed above the outside of the fixed cylinder, a motor is installed on one side of the top surface of the top cover, a second gear is installed at the output end of the motor and meshes with the first gear, a ball rolling track is opened on one side of the outer surface of the first gear, and a plurality of support plates are installed on the bottom surface of the top cover, and a plurality of balls are rotatably installed on the support plates, and the plurality of balls roll along the ball rolling track.

[0014] Preferably, a core taking opening is provided on the outside of each of the plurality of air ducts, and a core sealing cover is installed in each of the plurality of core taking openings.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides a high-efficiency separation and purification system for methyl tert-butyl ether, which has the following beneficial effects:

[0017] 1. The methyl tert-butyl ether efficient separation and purification system uses a reactor as the main body of the equipment, wherein a freely rotatable baffle is installed inside the reactor, a heating plate that can reciprocate up and down is installed below the baffle, and the heating plate is arranged obliquely, so that the solution is evenly heated by the baffle, and the solution can be stirred by the rotation of the baffle and the up and down movement of the heating plate, thereby improving the heating efficiency and the separation rate of methyl tert-butyl ether. A bottom cover that can reciprocate up and down is installed below the reactor, and the up and down movement of the bottom cover can change the space in the reactor, and the effect of pressurizing the reactor can be achieved to meet the separation conditions of methyl tert-butyl ether.

[0018] At the same time, a plurality of circular array air ducts are installed on the baffle, one part of which is above the baffle and the other part is below the baffle, and a plurality of air inlet holes are opened on the outside of the lower part, so that the separated methyl tert-butyl ether gas can be transmitted through the air duct for subsequent purification process, wherein a filter element is installed in the air duct, which can adsorb the liquid adhered to the gas, thereby improving the purity of subsequent purification to a certain extent.

[0019] 2. The methyl tert-butyl ether efficient separation and purification system has a plurality of mounting plates in a circular array mounted above the outside of the reactor, on which a purification tube is mounted. The lower part of the purification tube is inclined, and a spiral condenser is mounted inside the purification tube. The separated methyl tert-butyl ether gas can enter the purification tube, and condensed water is filled into the spiral condenser from bottom to top to condense the methyl tert-butyl ether into liquid, which is then discharged from the lower part of the purification tube for easy collection. The entire device integrates the components used for separation and purification, thereby improving the integrity and compactness of the equipment and facilitating use and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0022] Figure 3 A second perspective schematic diagram of the overall structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the reactor from the first perspective of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the reactor from a second viewing angle in the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of the reactor in the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the baffle in the present invention from a first viewing angle;

[0027] Figure 8 This is a schematic diagram of the structure of the baffle in the present invention from a second viewing angle;

[0028] Fig. 9 Schematic diagram of the internal structure of the baffle in the present invention;

[0029] Fig.10 It is a schematic diagram of the internal structure of the top cover in the present invention;

[0030] Fig.11 It is a schematic diagram of the internal structure of the bottom cover of the present invention;

[0031] Fig.12 It is a schematic diagram of the overall structure of the heating plate in the present invention;

[0032] Fig.13 It is a schematic cross-sectional structural diagram of the first gear in the present invention.

[0033] In the figure: 1-reactor, 2-top cover, 3-bottom cover, 4-motor, 5-purification tube, 6-water outlet valve, 7-water inlet valve, 8-liquid outlet valve, 9-solenoid valve, 10-spiral condenser, 11-connecting tube, 12-second gear, 13-first gear, 14-rolling ball, 15-baffle, 16-filter element, 17-second telescopic cylinder, 18-heating plate, 19-first sealing ring, 20-second sealing ring, 21-first telescopic cylinder, 22-third sealing ring, 23-fixing plate, 24-mounting hole, 25-fixing cylinder, 26-air duct, 27-coring port, 28-core sealing cover, 29-air hole, 30-groove, 31-L-shaped plate, 32-rolling ball path, 33-support plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-13A highly efficient separation and purification system for methyl tert-butyl ether comprises a reactor 1, which is open at both the upper and lower parts, a top cover 2 for sealing is installed above the reactor 1, a bottom cover 3 for sealing which can reciprocate up and down is installed inside the reactor 1, a baffle 15 is installed in the middle position of the reactor 1, and a gas space and a liquid space are formed at the upper and lower parts thereof respectively, a plurality of air ducts 26 in a circumferential array are installed on the baffle 15, and the plurality of air ducts 26 are all in a Z shape as a whole, a part of which is located above the baffle 15, and another part is located below the baffle 15, and the lower part of the outer part of the plurality of air ducts 26 is located below the baffle 15. A plurality of uniformly arrayed air holes 29 are provided, filter elements 16 are installed inside the plurality of air ducts 26, a heating plate 18 is installed below the baffle 15, a plurality of circular arrayed purification tubes 5 are installed outside the reactor 1, and the two are arranged in parallel. The plurality of purification tubes 5 are connected to the reactor 1 through a connecting tube 11, spiral condensers 10 are installed inside the plurality of purification tubes 5, the water inlets of the plurality of spiral condensers 10 are all at the bottom and the water outlets are all at the top, and water inlet valves 7 and water outlet valves 6 are installed at the water inlet and the water outlet, respectively, and liquid outlet valves 8 are installed below the outside of the plurality of purification tubes 5.

[0036] As an optional technical solution of the present invention:

[0037] A plurality of fixed plates 23 in a circular array are installed above the outside of the reactor 1, and a plurality of purification tubes 5 are respectively installed on the plurality of fixed plates 23. In actual use, a threaded installation method can be adopted between the purification tube 5 and the fixed plate 23 to facilitate the installation and disassembly of the purification tube 5. One end of the purification tube 5 is closed and the other end is not closed, and the unclosed end of the purification tube 5 is bent to facilitate the flow of the condensed liquid.

[0038] As an optional technical solution of the present invention:

[0039] A plurality of mounting holes 24 in a circular array are provided at the lower portion of the exterior of the reactor 1, each of which is provided with a first telescopic cylinder 21. A plurality of L-shaped plates 31 in a circular array are provided on the bottom surface of the bottom cover 3, which are respectively provided at the output ends of the plurality of first telescopic cylinders 21. Driven by the first telescopic cylinders 21, the bottom cover 3 can be lifted up and down.

[0040] As an optional technical solution of the present invention:

[0041] A solenoid valve 9 is installed in the middle position below the bottom cover 3. A plurality of grooves 30 are provided on the side arc surface of the bottom cover 3. A first sealing ring 19 and a second sealing ring 20 are respectively installed inside the plurality of grooves 30. The staff can fill or discharge the solution into or out of the reactor 1 through the solenoid valve 9. At the same time, the presence of the plurality of sealing rings can improve the sealing effect between the bottom cover 3 and the reactor 1.

[0042] As an optional technical solution of the present invention:

[0043] A fixed tube 25 is installed at the middle position of the top surface of the baffle 15, and a second telescopic cylinder 17 is installed inside the fixed tube 25. The heating plate 18 is installed at the output end of the second telescopic cylinder 17. The plate body of the heating plate 18 is placed obliquely. The heating plate 18 is powered on for heating, which can increase the temperature of the solution and make the methyl tert-butyl ether evaporate into gas. At the same time, the inclined plate body can increase the contact area with the solution.

[0044] As an optional technical solution of the present invention:

[0045] A third sealing ring 22 is installed on the side arc surface of the baffle 15. The outer surface of the third sealing ring 22 is in contact with the inner wall of the reactor 1. The sealing ring improves the sealing between the baffle 15 and the reactor 1 to avoid air leakage, liquid leakage, etc.

[0046] As an optional technical solution of the present invention:

[0047] A first gear 13 is installed above the outside of the fixed cylinder 25, a motor 4 is installed on one side of the top surface of the top cover 2, a second gear 12 is installed on the output end of the motor 4, which meshes with the first gear 13, and a ball rolling track 32 is opened on one side of the outer surface of the first gear 13, and a plurality of support plates 33 are installed on the bottom surface of the top cover 2, and balls 14 are rollingly installed on the plurality of support plates 33, and the plurality of balls 14 roll along the ball rolling track 32, and the gears are supported by the support plates 33 to prevent the baffle 15 from falling. At the same time, the rolling balls 14 can reduce the friction between the two components, so that the baffle 15 can rotate smoothly. At the same time, the meshing gears can have a self-locking function to prevent the baffle 15 from rotating accidentally.

[0048] As an optional technical solution of the present invention:

[0049] The outside of the multiple air ducts 28 are all provided with core ports 27, and the multiple core ports 27 are all installed with core sealing covers 28. The staff can take out the filter element 16 from the core ports 27. The filter element 16 can be replaced according to the type of solvent to absorb the solvent.

[0050] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0051] When in use, a solution obtained by mixing methyl tert-butyl ether and a solvent is poured into the reaction kettle 1, the bottom cover 3 moves upward to pressurize the kettle, the heating plate 18 heats the solution, and the environment in the kettle reaches the conditions for evaporation of methyl tert-butyl ether. At the same time, the baffle 15 rotates to heat the solution evenly, and the evaporated gas can be discharged from the air duct 26 into the gas space, wherein the filter element 16 absorbs the solvent adhered to the gas, so that the gas has a higher dryness. The gas enters into a plurality of purification tubes 5 respectively, and the condensate is filled into the spiral condenser tube 10 from bottom to top, so that the gas can be condensed into liquid and flows out from the purification tube 5, which is convenient for the staff to collect. After the gas separation and purification is completed, the liquid in the kettle is discharged from the solenoid valve 9.

[0052] In summary, the characteristics, assembly methods, use processes and functions realized by each component in the methyl tert-butyl ether efficient separation and purification system are as follows: a reactor 1 is used as the main body of the equipment, and a freely rotatable baffle 15 is installed inside the reactor, and a heating plate 18 that can reciprocate up and down is installed below the baffle 15, and the heating plate 18 is arranged at an angle, so that the solution is evenly heated by the baffle 15, and the solution can be stirred by the rotation of the baffle 15 and the up and down movement of the heating plate 18, thereby improving the heating efficiency and the separation rate of methyl tert-butyl ether. A bottom cover 3 that can reciprocate up and down is installed below the reactor 1. Through its up and down movement, the space in the reactor 1 can be changed, and the effect of pressurizing the reactor can be achieved to meet the separation conditions of methyl tert-butyl ether. A plurality of air ducts 26 in a circular array are installed on the baffle 15, a part of which is above the baffle 15 and the other part is located below the baffle 15. Below, and a plurality of air inlet holes 29 are opened on the outside of the lower part, so that the separated methyl tert-butyl ether gas can be transmitted through the air duct 26 for subsequent purification process, wherein a filter element 16 is installed in the air duct 26, which can adsorb the liquid adhered to the gas, and can improve the purity of subsequent purification to a certain extent, and a plurality of circular array mounting plates 23 are installed above the outside of the reactor 1, on which a purification tube 5 is installed, the lower part of the purification tube 5 is inclined, and a spiral condenser 10 is installed inside the purification tube 5, the separated methyl tert-butyl ether gas can enter the purification tube 5, and condensed water is filled into the spiral condenser 10 from bottom to top, so that the methyl tert-butyl ether is condensed into liquid, and discharged from the bottom of the purification tube 5 for easy collection, and the whole equipment integrates the components used for separation and purification, improves the integrity and compactness of the equipment, and is convenient for use and operation.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A methyl tert-butyl ether efficient separation and purification system, characterized in that: The invention comprises a reaction kettle (1) which is open at both the top and bottom. A top cover (2) for sealing is installed at the top of the reaction kettle (1). A bottom cover (3) for sealing and capable of reciprocating up and down is installed inside the bottom of the reaction kettle (1). A baffle (15) is installed at the middle position of the reaction kettle (1) to form a gas space and a liquid space at the top and bottom, respectively. A plurality of circular arrays of air ducts (26) are installed on the baffle (15). The plurality of air ducts (26) are all in a Z-shape as a whole, with one part located above the baffle (15) and the other part located below the baffle (15). A plurality of uniform arrays of air holes (26) are opened below the outside of the plurality of air ducts (26). 29), filter elements (16) are installed inside the plurality of air ducts (26), a heating plate (18) is installed below the baffle (15), a plurality of purification tubes (5) in a circular array are installed outside the reactor (1), and the two are arranged in parallel. The plurality of purification tubes (5) are connected to the reactor (1) through a connecting tube (11), spiral condensers (10) are installed inside the plurality of purification tubes (5), the water inlets of the plurality of spiral condensers (10) are all at the bottom and the water outlets are all at the top, and water inlet valves (7) and water outlet valves (6) are installed at the water inlet and the water outlet, respectively, and liquid outlet valves (8) are installed below the outside of the plurality of purification tubes (5).

2. A methyl tert-butyl ether efficient separation and purification system according to claim 1, characterized in that: A plurality of fixed plates (23) in a circumferential array are installed above the outside of the reaction kettle (1), and the plurality of purification tubes (5) are respectively installed on the plurality of fixed plates (23).

3. A methyl tert-butyl ether efficient separation and purification system according to claim 1, characterized in that: A plurality of mounting holes (24) in a circular array are provided below the exterior of the reaction kettle (1), each of which is provided with a first telescopic cylinder (21). A plurality of L-shaped plates (31) in a circular array are provided on the bottom surface of the bottom cover (3), which are respectively provided at the output ends of the plurality of first telescopic cylinders (21).

4. A methyl tert-butyl ether efficient separation and purification system according to claim 1, characterized in that: A solenoid valve (9) is installed at the middle position below the bottom cover (3), and a plurality of grooves (30) are provided on the side arc surface of the bottom cover (3), wherein a first sealing ring (19) and a second sealing ring (20) are respectively installed inside the plurality of grooves (30).

5. A methyl tert-butyl ether efficient separation and purification system according to claim 1, characterized in that: A fixing tube (25) is installed at the middle position of the top surface of the baffle (15), and a second telescopic cylinder (17) is installed inside the fixing tube. The heating plate (18) is installed at the output end of the second telescopic cylinder (17), and the plate body of the heating plate (18) is placed obliquely.

6. A methyl tert-butyl ether efficient separation and purification system according to claim 1, characterized in that: A third sealing ring (22) is installed on the side arc surface of the baffle (15), and the outer surface of the third sealing ring (22) is in contact with the inner wall of the reaction kettle (1).

7. A methyl tert-butyl ether efficient separation and purification system according to claim 5, characterized in that: A first gear (13) is installed above the outside of the fixed cylinder (25); a motor (4) is installed on one side of the top surface of the top cover (2); a second gear (12) is installed at the output end of the motor (4) and meshes with the first gear (13); a ball rolling track (32) is opened on one side of the outer surface of the first gear (13); a plurality of support plates (33) are installed on the bottom surface of the top cover (2); a plurality of rolling balls (14) are rollingly installed on the plurality of support plates (33); and the plurality of rolling balls (14) roll along the ball rolling track (32).

8. A methyl tert-butyl ether efficient separation and purification system according to claim 1, characterized in that: The exteriors of the plurality of air ducts (28) are each provided with a core removal opening (27), and the interiors of the plurality of core removal openings (27) are each provided with a core sealing cover (28).

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