Vertical alkylation reactor

Abstract

The utility model provides a vertical alkylation reactor which comprises a vertical reactor and a sealing cover, a mixing component used for actively stirring mixed reactants is arranged in the vertical reactor, and a flow guide component used for guiding, falling and dispersing hydrocarbon materials and acid materials is arranged in the sealing cover. Through the arrangement of the main through cavity, hydrocarbon materials discharged by the main feeding valve can be directly guided into the main guide falling pipe, the main guide falling pipe can downwards guide the hydrocarbon materials to the dispersing block to be dispersed, and through the arrangement of the auxiliary through cavity, acid materials discharged by the auxiliary feeding valve can be downwards guided into the flow guide inclined pipe; the falling guide inclined pipe can guide the acid material downwards to the dispersion block through the main falling guide pipe for dispersion, the low-speed motor drives the rotating vertical shaft to rotate, and the rotating vertical shaft can drive the stirring strip to rotate together to actively stir the mixture of the hydrocarbon material and the acid material in the vertical reactor; therefore, the mixing reaction efficiency of the hydrocarbon material and the acid material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of alkylation reactors, in particular to a vertical alkylation reactor. Background Art

[0002] Alkylation refers to the reaction of introducing alkyl groups (-R) into carbon, nitrogen, oxygen and other atoms in organic molecules, referred to as alkylation. Commonly used alkylating agents include olefins, halogenated alkanes, alkyl sulfates and alcohols. Alkylation is one of the important reactions in organic synthesis. Through alkylation, new carbon, carbon-heterovalent bonds can be formed, thereby extending the molecular skeleton of organic compounds, changing the chemical structure of the alkylated compounds, giving them new properties, and producing many organic chemicals with specific uses. In the process of alkylation, corresponding alkylation reactors are required for reaction operations.

[0003] Announcement No. "CN209952815U" provides a vertical alkylation reaction device, in which two liquids are poured into the reactor from different independent pipes, and then gathered in the same branch pipe. After being fully mixed and evenly distributed, they are divided into multiple levels and multiple small streams of materials, and finally sprayed through the through holes to evenly cover the entire spatial cross-section of the reactor and react.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the vertical alkylation reaction device can spray through the through-holes to evenly cover the entire spatial cross-section of the reactor for reaction, the second feed pipe is L-shaped. Therefore, in actual use, the corners of the second feed pipe are very prone to siltation and blockage, and the through-holes are also prone to blockage, thereby affecting the processing efficiency of the reaction device. In addition, the vertical alkylation reaction device does not have an active mixing structure inside to stir and mix the reactants, and the reaction efficiency needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to provide a vertical alkylation reactor to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A vertical alkylation reactor comprises a supporting base frame, a vertical reactor, a heat exchange jacket and a sealing cover, wherein the sealing cover is installed on the upper end surface of the vertical reactor, the heat exchange jacket is fixedly connected to the annular side surface of the vertical reactor, the supporting base frame is fixedly connected to the bottom of the vertical reactor, a mixing component for actively stirring the mixed reactants is arranged inside the vertical reactor, and a flow guide component for guiding and dispersing hydrocarbon materials and acid materials is arranged inside the sealing cover.

[0009] Preferably, the flow guide component includes a flow guide inclined tube, a secondary through cavity, a secondary feed valve, a main feed valve, a main through cavity and a main drop pipe, the secondary feed valves are symmetrically installed on the left and right sides of the upper end surface of the sealing cover, the main feed valve is installed in the middle position of the upper end surface of the sealing cover, the main through cavity is opened in the middle position of the upper end surface of the sealing cover, the secondary through cavity is symmetrically opened on the left and right sides of the upper end surface of the sealing cover, the main drop pipe is fixedly connected to the middle position inside the sealing cover, and the flow guide inclined tubes are symmetrically fixedly connected to the left and right sides of the annular side of the main drop pipe.

[0010] Preferably, a dispersion block is provided on the upper side of the vertical reactor, and support rods are symmetrically installed on the left and right sides and the front and rear sides of the annular side of the dispersion block, and the dispersion block is conical in shape.

[0011] Preferably, the mixing assembly includes a motor bracket, a low-speed motor, a rotating vertical shaft and a stirring bar. The motor bracket is installed in the middle position of the bottom of the vertical reactor, the low-speed motor is installed at the lower end of the motor bracket, the rotating vertical shaft is installed at the upper end of the low-speed motor, and the stirring bar is arranged on the annular side of the rotating vertical shaft.

[0012] Preferably, a rectangular through cavity is provided inside the stirring bar, a vertical baffle is fixedly connected to the lower side of the inner annular side of the vertical reactor, and a mechanical seal is installed on the lower side of the annular side of the rotating vertical shaft.

[0013] Preferably, the main through cavity is respectively connected with the main feed valve and the main drop pipe, the secondary through cavity is connected with the secondary feed valve and the guide inclined pipe, and the main drop pipe is connected with the guide inclined pipe.

[0014] Preferably, an observation window is installed on the upper side of the sealing cover upper end surface, a thermometer is installed on the right side of the sealing cover upper end surface, a liquid outlet pipe is connected to the upper side of the left end surface of the heat exchange jacket, a liquid inlet pipe is connected to the lower side of the right end surface of the heat exchange jacket, and a discharge valve is installed on the lower side of the left end surface of the vertical reactor.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model uses the main through cavity to directly guide the hydrocarbon material discharged from the main feed valve into the main drop pipe, and the main drop pipe guides the hydrocarbon material downward to the dispersion block for dispersion, and uses the secondary through cavity to guide the acid material discharged from the secondary feed valve downward into the diversion inclined pipe, and the diversion inclined pipe guides the acid material downward to the dispersion block through the main drop pipe for dispersion, so as to avoid the hydrocarbon material and the acid material being concentrated and dropped to one place for accumulation, thereby ensuring the subsequent mixing uniformity of the hydrocarbon material and the acid material, and because the diversion inclined pipe and the main drop pipe adopt a straight-through structure, they will not be easily blocked during use, and the utility model has good practicality;

[0017] 2. The utility model can make the rotating vertical shaft driven by the low-speed motor rotate, so that the rotating vertical shaft can drive the stirring bar to rotate together to actively stir the mixture of hydrocarbon material and acid material inside the vertical reactor. In this process, the rectangular through cavity can increase the stirring area of ​​the stirring bar, and the vertical baffle can block a part of the mixed material at the inner edge of the vertical reactor and make it surge, thereby improving the mixing reaction efficiency of the hydrocarbon material and the acid material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a front cross-sectional view of the mixing component and the flow guide component in the utility model;

[0020] Figure 3 It is a partial structural diagram of the flow guide component in the utility model;

[0021] Figure 4 It is a partial structural diagram of the mixing component in the utility model;

[0022] Figure 5 It is a structural diagram of the sealing cover in the utility model.

[0023] In the figure: 1. supporting frame; 2. mixing assembly; 21. motor bracket; 22. low-speed motor; 23. rotating vertical axis; 231. mechanical seal; 24. stirring bar; 25. rectangular through cavity; 26. vertical baffle; 3. vertical reactor; 31. discharge valve; 4. heat exchange jacket; 41. liquid inlet pipe; 42. liquid outlet pipe; 5. sealing cover; 51. observation window; 52. thermometer; 6. guide assembly; 61. support rod; 62. dispersion block; 63. guide inclined pipe; 64. auxiliary through cavity; 65. auxiliary feed valve; 66. main feed valve; 67. main through cavity; 68. main drop pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution: Example

[0026] A vertical alkylation reactor comprises a supporting frame 1, a vertical reactor 3, a heat exchange jacket 4 and a sealing cover 5. The sealing cover 5 is installed on the upper end surface of the vertical reactor 3, and the sealing cover 5 is a detachable structure. The detachable sealing cover 5 not only seals the upper end surface of the vertical reactor 3, but also facilitates the staff to enter the vertical reactor 3 for maintenance at a later time. The heat exchange jacket 4 is fixedly connected to the annular side surface of the vertical reactor 3, and the heat exchange jacket 4 facilitates the external heat transfer oil to heat the vertical reactor 3. The supporting frame 1 is fixedly connected to the bottom of the vertical reactor 3, and the supporting frame 1 supports and fixes the vertical reactor 3. The lower side of the inner wall of the vertical reactor 3 is low on the left and high on the right. The vertical reactor 3 with the lower side of the inner wall being low on the left and high on the right facilitates the internal mixed reactants to flow to the left side in a concentrated manner, so that the discharge valve 31 can discharge all the internal mixed reactants of the vertical reactor 3.

[0027] A mixing assembly 2 for actively stirring the mixed reactants is arranged inside the vertical reactor 3, a flow guide assembly 6 for guiding and dispersing the hydrocarbon material and the acid material is arranged inside the sealing cover 5, an observation window 51 is installed on the front side of the upper end face of the sealing cover 5, and the observation window 51 is convenient for the staff to observe the internal situation of the vertical reactor 3 in real time, a thermometer 52 is installed on the right side of the upper end face of the sealing cover 5, and the thermometer 52 will display the internal temperature of the vertical reactor 3 in real time for the staff to observe, and the upper side of the left end face of the heat exchange jacket 4 is connected to a liquid outlet pipe 42, and the liquid outlet pipe 42 is connected to the inlet of the electric heater. The liquid outlet pipe 42 will guide the heat transfer oil in the heat exchange jacket 4 to the external circulation electric heater for heating and circulation. The lower side of the right end surface of the heat exchange jacket 4 is connected with a liquid inlet pipe 41, which is connected with the outlet of the external circulation electric heater. The liquid inlet pipe 41 will guide the heat transfer oil discharged from the external circulation electric heater into the heat exchange jacket 4. A discharge valve 31 is installed on the lower side of the left end surface of the vertical reactor 3. The outlet of the discharge valve 31 is connected with the inlet of the external reaction material temporary storage tank through a pipeline. When the discharge valve 31 is opened, the mixed reactants in the vertical reactor 3 will be discharged.

[0028] The flow guide assembly 6 includes a flow guide inclined pipe 63, a secondary through cavity 64, a secondary feed valve 65, a main feed valve 66, a main through cavity 67 and a main drop pipe 68. The secondary feed valves 65 are symmetrically installed on the left and right sides of the upper end surface of the sealing cover 5. The inlet of the secondary feed valve 65 is connected to the outlet of the external hydrocarbon material storage tank through a pipeline. When the secondary feed valve 65 is opened, the hydrocarbon material will be introduced into the secondary through cavity 64. The main feed valve 66 is installed in the middle position of the upper end surface of the sealing cover 5. The inlet of the main feed valve 66 is connected to the outlet of the external acid material storage tank through a pipeline. When the main feed valve 66 is opened, the acid material will be introduced into the main through cavity 67. The main through cavity 67 is opened in the middle position of the upper end surface of the sealing cover 5. The main through cavity 67 is respectively connected to the main feed valve 66 and the main drop pipe 68. The main through cavity 67 will downwardly introduce the acid material discharged from the main feed valve 66 into the inside of the main drop pipe 68.

[0029] The upper end surface of the sealing cover 5 is symmetrically provided with auxiliary through-cavities 64 on both sides, which are connected with the auxiliary feed valve 65 and the guide inclined pipe 63. The auxiliary through-cavity 64 will guide the hydrocarbon material discharged from the auxiliary feed valve 65 to the guide inclined pipe 63. A main drop pipe 68 is fixedly connected to the middle position inside the sealing cover 5. The main drop pipe 68 is connected with the guide inclined pipe. The main drop pipe 68 will guide the hydrocarbon material or acid material discharged from the main through-cavity 67 or the guide inclined pipe downward to the dispersion block 62. The left and right sides of the annular side of the main drop pipe 68 are symmetrically fixedly connected. There is a guide inclined pipe 63, which will guide the hydrocarbon material inside the secondary cavity 64 to the main drop pipe 68. A dispersion block 62 is arranged on the upper side of the vertical reactor 3. The dispersion block 62 is conical in shape. The dispersion block 62 with a conical shape will disperse the hydrocarbon material and acid material guided down from the main drop pipe 68 to avoid the hydrocarbon material and acid material being concentrated and guided to one place to affect their mixing efficiency. Support rods 61 are symmetrically installed on the left and right sides and the front and back sides of the annular side of the dispersion block 62, and the support rods 61 will support the dispersion block 62. Example

[0030] On the basis of the first embodiment, in this embodiment, by driving the low-speed motor 22 to rotate the rotating vertical shaft 23, the rotating vertical shaft 23 can drive the stirring bar 24 to rotate together to actively stir the mixture of hydrocarbon material and acid material inside the vertical reactor 3. In this process, the rectangular through cavity 25 can increase the stirring area of ​​the stirring bar 24, and the vertical baffle 26 can block a part of the mixed material at the inner edge of the vertical reactor 3 and make it surge, thereby improving the mixing reaction efficiency of the hydrocarbon material and the acid material.

[0031] The mixing assembly 2 includes a motor bracket 21, a low-speed motor 22, a rotating vertical shaft 23 and a stirring bar 24. The motor bracket 21 is installed at the middle position of the bottom of the vertical reactor 3. The motor bracket 21 will support the low-speed motor 22. The low-speed motor 22 is installed at the lower end of the motor bracket 21. The low-speed motor 22 is connected to an external control switch through a wire. When working, the low-speed motor 22 will drive the rotating vertical shaft 23 to rotate at a low speed. The upper end of the low-speed motor 22 is installed with a rotating vertical shaft 23. The rotating vertical shaft 23 is connected to the stirring bar 24 by welding, and the rotating vertical shaft 23 will drive the stirring bar 24 to rotate.

[0032] A stirring bar 24 is arranged on the annular side of the rotating vertical shaft 23. The stirring bar 24 stirs the mixed material inside the vertical reactor 3 when rotating. A rectangular through cavity 25 is opened inside the stirring bar 24. The rectangular through cavity 25 can increase the stirring area of ​​the stirring bar 24, thereby further improving the stirring efficiency of the stirring bar 24. A vertical baffle 26 is fixedly connected to the lower side of the inner annular side of the vertical reactor 3. The vertical baffle 26 blocks a part of the mixed material at the inner edge of the vertical reactor 3 and makes it surge, so that the mixed material is mixed more fully. A mechanical seal 231 is installed on the lower side of the annular side of the rotating vertical shaft 23. The mechanical seal 231 makes the sealing between the rotating vertical shaft 23 and the vertical reactor 3 better, so as to prevent the mixed material inside the vertical reactor 3 from overflowing to the outside through the gap.

[0033] Working principle: the staff first opens the main feed valve 66 to introduce a proper amount of acid material into the vertical reactor 3, and then opens the auxiliary feed valve 65 to introduce a proper amount of hydrocarbon material into the vertical reactor 3. During this process, the auxiliary through cavity 64 will guide the acid material discharged from the auxiliary feed valve 65 downward into the diversion inclined pipe 63, and the diversion inclined pipe will guide the acid material into the main diversion pipe 68, so that the active diversion pipe guides the acid material downward to the upper end surface of the dispersion block 62, and the main through cavity 67 will directly guide the hydrocarbon material discharged from the main feed valve 66 into the main diversion pipe 68, so that the main diversion pipe 68 guides the hydrocarbon material downward to the upper end surface of the dispersion block 62. At this time, the conical dispersion block 62 will disperse the hydrocarbon material and acid material that are guided down to the surroundings to avoid the hydrocarbon material and acid material being concentrated and guided down to one place for accumulation, so as to ensure the subsequent mixing uniformity of the hydrocarbon material and the acid material; at the same time, the low-speed motor 22 is started to drive the low-speed motor 22 to rotate the vertical shaft 23 rotates, and the rotating vertical shaft 23 drives the stirring bar 24 to rotate together, so that the stirring bar 24 stirs the mixture of hydrocarbon material and acid material in the vertical reactor 3. In this process, the rectangular through cavity 25 can increase the stirring area of ​​the stirring bar 24, so as to further improve the stirring efficiency of the stirring bar 24, and the vertical baffle 26 can block a part of the mixed material at the inner edge of the vertical reactor 3 and make it surge, so as to accelerate the mixing reaction efficiency of the hydrocarbon material and the acid material; at the same time, the staff only needs to start the external circulation electric heater to make the heat transfer oil heated to the required temperature be transported to the inside of the heat exchange jacket 4 through the liquid inlet pipe 41 to heat the vertical reactor 3, so that the vertical reactor 3 heats the mixture of hydrocarbon material and acid material inside to react. After the reaction reaches the required time, the staff first turns off the external circulation electric heater, then turns off the low-speed motor 22 and opens the discharge valve 31 to discharge the reactants in the vertical reactor 3.

[0034] 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 vertical alkylation reactor, comprising a supporting frame (1), a vertical reactor (3), a heat exchange jacket (4) and a sealing cover (5), characterized in that: The upper end surface of the vertical reactor (3) is provided with a sealing cover (5), the annular side surface of the vertical reactor (3) is fixedly connected to a heat exchange jacket (4), and the bottom of the vertical reactor (3) is fixedly connected to a supporting base frame (1); The vertical reactor (3) is provided with a mixing component (2) for actively stirring the mixed reactants, and the sealing cover (5) is provided with a flow guiding component (6) for guiding and dispersing the hydrocarbon material and the acid material. The flow guide assembly (6) comprises a flow guide inclined pipe (63), a secondary through cavity (64), a secondary feed valve (65), a main feed valve (66), a main through cavity (67) and a main drop pipe (68); the secondary feed valves (65) are symmetrically mounted on the left and right sides of the upper end surface of the sealing cover (5); the main feed valve (66) is mounted at the middle position of the upper end surface of the sealing cover (5); the main through cavity (67) is opened at the middle position of the upper end surface of the sealing cover (5); the secondary through cavity (64) is symmetrically opened on the left and right sides of the upper end surface of the sealing cover (5); the main drop pipe (68) is fixedly connected to the middle position inside the sealing cover (5); and the flow guide inclined pipe (63) is symmetrically fixedly connected to the left and right sides of the annular side surface of the main drop pipe (68).

2. A vertical alkylation reactor according to claim 1, characterized in that: A dispersion block (62) is arranged on the upper inner side of the vertical reactor (3), and support rods (61) are symmetrically mounted on the left and right sides and the front and rear sides of the annular side surface of the dispersion block (62), and the dispersion block (62) is conical in shape.

3. A vertical alkylation reactor according to claim 1, characterized in that: The mixing assembly (2) comprises a motor support (21), a low-speed motor (22), a rotating vertical shaft (23) and a stirring bar (24); the motor support (21) is installed at the middle position of the bottom of the vertical reactor (3); the low-speed motor (22) is installed at the lower end of the motor support (21); the rotating vertical shaft (23) is installed at the upper end of the low-speed motor (22); and the stirring bar (24) is arranged on the annular side surface of the rotating vertical shaft (23).

4. A vertical alkylation reactor according to claim 3, characterized in that: A rectangular through cavity (25) is provided inside the stirring bar (24), a vertical baffle (26) is fixedly connected to the lower side of the inner annular side surface of the vertical reactor (3), and a mechanical seal (231) is installed on the lower side of the annular side surface of the rotating vertical shaft (23).

5. A vertical alkylation reactor according to claim 1, characterized in that: The main through cavity (67) is respectively connected to the main feed valve (66) and the main drop pipe (68), the secondary through cavity (64) is connected to the secondary feed valve (65) and the diversion inclined pipe (63), and the main drop pipe (68) is connected to the diversion inclined pipe.

6. A vertical alkylation reactor according to claim 1, characterized in that: An observation window (51) is installed on the front side of the upper end surface of the sealing cover (5), a thermometer (52) is installed on the right side of the upper end surface of the sealing cover (5), a liquid outlet pipe (42) is connected to the upper side of the left end surface of the heat exchange jacket (4), a liquid inlet pipe (41) is connected to the lower side of the right end surface of the heat exchange jacket (4), and a discharge valve (31) is installed on the lower side of the left end surface of the vertical reactor (3).

Images