Methyl tert-butyl ether (MTBE) catalytic rectification device

Abstract

The utility model discloses an MTBE catalytic rectification device, and particularly relates to the technical field of MTBE processing, the MTBE catalytic rectification device comprises a first processing cylinder, one side of the first processing cylinder is provided with a second processing cylinder, the top end of the first processing cylinder is fixedly communicated with a second connecting pipe, and the other end of the second connecting pipe is fixedly communicated with the second processing cylinder; and a second valve is fixedly installed on the second connecting pipe, a heater is fixedly connected to the interior of the first processing cylinder, a condenser is movably arranged in the second processing cylinder, and the condenser is fixedly installed on the second connecting pipe. According to the MTBE processing device, the second valve is opened, gas enters the second processing barrel through the second connecting pipe, the condenser condenses the gas, silica gel can absorb moisture in liquid MTBE, finally, the threaded piston is rotated to be away from the second processing barrel, the liquid MTBE in the second processing barrel is discharged, operation is easy, moisture in the MTBE is conveniently removed, and the MTBE processing device is suitable for popularization and application. And the product quality of MTBE is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of MTBE processing, and more specifically, to a MTBE catalytic distillation device. Background Art

[0002] MTBE (methyl tert-butyl ether) is a clear, colorless liquid with a low boiling point and volatility. MTBE is often used as an additive and added to gasoline to increase the octane number of the fuel and prevent engine knock. After long-term use, the existing catalytic distillation tower has a lower catalyst efficiency at the bottom, while the catalyst at the top still has a high catalytic efficiency. When replacing the catalyst, the entire tower is replaced, which invisibly increases the cost of the catalyst and reduces the actual use efficiency of the catalyst.

[0003] After searching, a Chinese patent with announcement number CN210933849U discloses an "MTBE catalytic distillation device". By setting at least two catalytic reaction towers in parallel, while ensuring a certain isobutylene conversion rate, the number and thickness of the catalyst bed are reduced. On the one hand, the overall tower height of the catalytic distillation tower is reduced, the capital construction cost is reduced, and the difficulty of inspection and management by operators is reduced. On the other hand, when replacing the catalyst or inspecting and repairing the catalytic reaction tower, the spare catalytic reaction tower can be switched to carry out normal production, thereby ensuring the continuity of production.

[0004] When the above-mentioned distillation device is in use, the mixture after rough separation enters the catalytic distillation tower, and the MTBE in the mixture is purified and extracted through the distillation process. However, the extracted MTBE contains moisture, and it is inconvenient to remove the moisture in the MTBE, which affects the product quality of MTBE. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a MTBE catalytic distillation device, aiming to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a MTBE catalytic distillation device, comprising a first processing cylinder, a second processing cylinder is arranged on one side of the first processing cylinder, the top end of the first processing cylinder is fixedly connected with a second connecting pipe, and the other end of the second connecting pipe is fixedly connected with the second processing cylinder, a second valve is fixedly installed on the second connecting pipe, a heater is fixedly connected to the interior of the first processing cylinder, a condenser is movably arranged inside the second processing cylinder, and the condenser is fixedly installed on the second connecting pipe, the bottom end of the interior of the second processing cylinder is fixedly connected with a mesh tube, the top end of the mesh tube is fixedly connected with a conduit, and silica gel is arranged inside the conduit.

[0007] Furthermore, a threaded piston is provided at the bottom of the second processing cylinder, and the top end of the threaded piston extends into the second processing cylinder and is threadedly connected thereto.

[0008] Furthermore, the top end of the threaded piston is fixedly connected to an extrusion frame, and the top end of the extrusion frame is in contact with the silicone.

[0009] It can be seen that in the above technical solution, the silicone in the catheter is taken out and replaced, and the silicone is installed in the same way, and the extrusion frame extrude the silicone.

[0010] Furthermore, the top ends of the first processing cylinder and the second processing cylinder are both fixedly connected with a first connecting pipe, and the first valves are fixedly installed on the two first connecting pipes.

[0011] It can be seen that the above technical solution is convenient for feeding and exhausting.

[0012] Furthermore, the first processing cylinder is provided with a rotating assembly, and the rotating assembly includes a motor, a rotating shaft, a plurality of stirring blades and a brush plate.

[0013] Furthermore, the motor is fixedly mounted on the top of the first processing cylinder, the top of the rotating shaft is fixedly connected to the end of the motor output shaft, a plurality of stirring blades are fixedly sleeved on the rotating shaft, and the brush plate is fixedly connected to the bottom end of the rotating shaft.

[0014] Furthermore, a sealing cover is provided on one side of the first processing cylinder.

[0015] It can be seen that in the above technical solution, it is convenient to clean the impurities in the first processing cylinder.

[0016] Technical effects and advantages of the utility model:

[0017] 1. The utility model heats the mixture in the first processing cylinder by the heater. Since MTBE has a low boiling point, it will evaporate first at an appropriate temperature. The second valve is opened, and the gas enters the second processing cylinder through the second connecting pipe. The condenser condenses the gas, and the silica gel can absorb the moisture in the liquid MTBE. Finally, the threaded piston is rotated and kept away from the second processing cylinder to discharge the liquid MTBE in the second processing cylinder. The operation is simple, the moisture in MTBE is convenient to remove, and the product quality of MTBE is effectively improved.

[0018] 2. The utility model drives the rotating shaft to rotate through the operation of the motor, thereby driving multiple stirring blades to rotate. The multiple stirring blades stir the mixture so that the mixture can be heated evenly. At the same time, the brush plate cleans the impurities at the bottom end of the first processing cylinder to prevent the impurities from being adsorbed at the bottom end of the first processing cylinder. Finally, the sealing cover is opened to clean the impurities in the first processing cylinder. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of an MTBE catalytic distillation device of the utility model;

[0021] Figure 2 This is a bottom view of the overall structure of an MTBE catalytic distillation device of the utility model;

[0022] Figure 3 This is a cross-sectional view of the first processing barrel and the assembly structure diagram of the rotating assembly of an MTBE catalytic distillation device of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional view of the second processing cylinder and the threaded piston assembly structure of an MTBE catalytic distillation device of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of a rotating assembly of a MTBE catalytic distillation device of the utility model;

[0025] Figure 6 It is a schematic diagram of the cross-section of a conduit and an assembly structure of an extrusion frame of an MTBE catalytic distillation device of the utility model.

[0026] In the figure: 1. first processing cylinder; 2. second processing cylinder; 3. first connecting pipe; 4. first valve; 5. second connecting pipe; 6. second valve; 7. rotating assembly; 8. sealing cover; 9. threaded piston; 10. heater; 11. condenser; 12. conduit; 13. mesh tube; 14. silica gel; 15. extrusion frame; 701. motor; 702. rotating shaft; 703. stirring blade; 704. brush plate. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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.

[0028] like Figure 1-6 As shown, an MTBE catalytic distillation device of this embodiment includes a first processing cylinder 1, a second processing cylinder 2 is arranged on one side of the first processing cylinder 1, the top end of the first processing cylinder 1 is fixedly connected with a second connecting pipe 5, and the other end of the second connecting pipe 5 is fixedly connected with the second processing cylinder 2, a second valve 6 is fixedly installed on the second connecting pipe 5, a heater 10 is fixedly connected inside the first processing cylinder 1, a condenser 11 is movably arranged inside the second processing cylinder 2, and the condenser 11 is fixedly installed on the second connecting pipe 5, the bottom end of the inside of the second processing cylinder 2 is fixedly connected with a mesh tube 13, the top end of the mesh tube 13 is fixedly connected with a conduit 12, and silica gel 14 is arranged inside the conduit 12.

[0029] Furthermore, a threaded piston 9 is provided at the bottom of the second processing cylinder 2, and the top end of the threaded piston 9 extends into the second processing cylinder 2 and is threadedly connected thereto, the top end of the threaded piston 9 is fixedly connected to an extrusion frame 15, and the top end of the extrusion frame 15 is in contact with the silicone 14, and the top ends of the first processing cylinder 1 and the second processing cylinder 2 are fixedly connected to a first connecting pipe 3, and a first valve 4 is fixedly installed on the two first connecting pipes 3.

[0030] Furthermore, a rotating assembly 7 is provided on the first processing cylinder 1, and the rotating assembly 7 includes a motor 701, a rotating shaft 702, a plurality of stirring blades 703 and a brush plate 704. The motor 701 is fixedly installed on the top of the first processing cylinder 1, the top of the rotating shaft 702 is fixedly connected to the end of the output shaft of the motor 701, the plurality of stirring blades 703 are fixedly sleeved on the rotating shaft 702, and the brush plate 704 is fixedly connected to the bottom end of the rotating shaft 702. A sealing cover 8 is provided on one side of the first processing cylinder 1, and the sealing cover 8 is preferably connected in the form of overlapping, so that the sealing cover 8 is easy to disassemble and assemble, and it is convenient to clean the internal impurities of the first processing cylinder 1.

[0031] Among them, the motor 701 is started, and the motor 701 drives the rotating shaft 702 to rotate, thereby driving the multiple stirring blades 703 to rotate. The multiple stirring blades 703 stir the mixture so that the mixture can be heated evenly. At the same time, the brush plate 704 cleans the impurities at the bottom end of the first processing cylinder 1 to prevent the impurities from being adsorbed on the bottom end of the first processing cylinder 1. Finally, the overlap is opened to release the fixation between the sealing cover 8 and the first processing cylinder 1, and the impurities in the first processing cylinder 1 are cleaned. The structure is simple and easy to use.

[0032] The method of using this embodiment is:

[0033] When in use, the mixture after rough separation enters the first processing cylinder 1 through one of the first connecting pipes 3, one of the first valves 4 is closed and the heater 10 is started, the heater 10 works to heat the mixture in the first processing cylinder 1, since MTBE has a low boiling point, MTBE will evaporate first at an appropriate temperature, the second valve 6 is opened, the gas enters the second processing cylinder 2 through the second connecting pipe 5, the condenser 11 condenses the gas, the silica gel 14 can absorb the moisture in the liquid MTBE, and finally the threaded piston 9 is rotated and kept away from the second processing cylinder 2 to discharge the liquid MTBE in the second processing cylinder 2. The operation is simple, the moisture in MTBE is convenient to remove, and the product quality of MTBE is effectively improved. At the same time, the silica gel 14 in the conduit 12 is taken out and replaced, and the silica gel 14 is installed in the same way, and the extrusion frame 15 extrude the silica gel 14.

[0034] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A MTBE catalytic distillation device, comprising a first processing cylinder (1), a second processing cylinder (2) being arranged on one side of the first processing cylinder (1), characterized in that: The top end of the first processing cylinder (1) is fixedly connected to a second connecting pipe (5), and the other end of the second connecting pipe (5) is fixedly connected to the second processing cylinder (2); a second valve (6) is fixedly installed on the second connecting pipe (5); a heater (10) is fixedly connected to the interior of the first processing cylinder (1); a condenser (11) is movably provided inside the second processing cylinder (2), and the condenser (11) is fixedly installed on the second connecting pipe (5); a mesh tube (13) is fixedly connected to the bottom end of the interior of the second processing cylinder (2); a conduit (12) is fixedly connected to the top end of the mesh tube (13); and silica gel (14) is provided inside the conduit (12).

2. The MTBE catalytic distillation device according to claim 1, characterized in that: A threaded piston (9) is provided at the bottom of the second processing cylinder (2), and the top end of the threaded piston (9) extends into the second processing cylinder (2) and is threadedly connected thereto.

3. The MTBE catalytic distillation device according to claim 2, characterized in that: The top end of the threaded piston (9) is fixedly connected to an extrusion frame (15), and the top end of the extrusion frame (15) is in contact with the silica gel (14).

4. The MTBE catalytic distillation device according to claim 1, characterized in that: The top ends of the first processing cylinder (1) and the second processing cylinder (2) are both fixedly connected with a first connecting pipe (3), and a first valve (4) is fixedly installed on the two first connecting pipes (3).

5. The MTBE catalytic distillation device according to claim 1, characterized in that: The first processing cylinder (1) is provided with a rotating assembly (7), and the rotating assembly (7) comprises a motor (701), a rotating shaft (702), a plurality of stirring blades (703) and a brush plate (704).

6. The MTBE catalytic distillation device according to claim 5, characterized in that: The motor (701) is fixedly mounted on the top end of the first processing cylinder (1); the top end of the rotating shaft (702) is fixedly connected to the end of the output shaft of the motor (701); the plurality of stirring blades (703) are fixedly sleeved on the rotating shaft (702); and the brush plate (704) is fixedly connected to the bottom end of the rotating shaft (702).

7. The MTBE catalytic distillation device according to claim 1, characterized in that: A sealing cover (8) is provided on one side of the first processing cylinder (1).

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