Stirring device and method for preparing aviation fuel anti-wear agent

Abstract

The invention relates to the technical field of anti-wear agent preparation, and discloses a stirring device for preparing an aviation fuel anti-wear agent.The stirring device comprises a body, a stirring cavity is formed in the body, a stirring assembly is arranged on the body, the stirring end of the stirring assembly extends into the stirring cavity, and a material storage part is further arranged on the body; a material storage cavity used for storing materials is formed in the material storage part, and the material storage cavity is provided with a material outlet communicated with the stirring cavity; the body is further provided with a discharging control assembly, and the discharging control assembly is matched with the discharging opening so that the material storage cavity can conduct intermittent discharging. When the aviation fuel anti-wear agent is prepared, oleic acid is placed in the stirring cavity, a catalyst is placed in the storage cavity, the discharging control assembly works to enable the catalyst in the storage cavity to be intermittently output into the stirring cavity, the stirring assembly is used for stirring the oleic acid and the catalyst, and the catalyst is added into the oleic acid in an intermittent discharging mode; the time required for fully mixing the two materials can be shortened, and the stirring efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of anti-wear agent preparation technology, and in particular to a stirring apparatus and method for preparing aviation fuel anti-wear agents. Background Technology

[0002] Aviation fuel, generally aviation kerosene, also known as jet fuel, is a petroleum product blended from straight-run fractions, hydrocracking and hydrorefining components, and necessary additives. It is mainly used as fuel for gas turbine engines and ramjet engines.

[0003] Wear resistance is one of the important indicators of aviation fuel. Its quality is extremely important for the sensitive regulation of engine fuel supply, the service life of fuel pumps, and even flight safety.

[0004] The preparation method of the anti-wear agent is shown in Chinese Invention Patent No. CN104789298B, published on October 17, 2017, "A Method for Preparing Anti-wear Agent for Aviation Fuel". The preparation process of the anti-wear agent requires a stirring step. In the stirring step, various raw materials used to prepare the anti-wear agent are put into a stirring device, and the stirring device stirs the raw materials, additives, etc. to mix and react with the raw materials and additives. In the prior art, when using a stirring device, the raw materials and additives are added to the stirring device at one time. This method of addition requires a sufficiently long stirring time to ensure that the raw materials and additives are fully mixed. That is, the time required for the raw materials and additives to be fully mixed is long, and the stirring efficiency is low. Summary of the Invention

[0005] The purpose of this invention is to shorten the time required for the production materials to be fully mixed and to improve the mixing efficiency.

[0006] To achieve the above objectives, the present invention provides a stirring device for preparing aviation fuel anti-wear agents, comprising a main body, a stirring chamber therein, a stirring assembly on the main body, the stirring end of the stirring assembly extending into the stirring chamber, a storage section on the main body, a storage cavity for storing materials within the storage section, and a discharge port communicating with the stirring chamber; the main body also comprises a discharge control assembly, which cooperates with the discharge port to intermittently discharge materials from the storage cavity.

[0007] In a specific embodiment of the present invention, the discharge control component includes a baffle plate, which is used to fit against the discharge end of the storage section to block the discharge port; the baffle plate is also provided with a clearance hole, and the baffle plate can be cyclically moved so that the clearance hole corresponds intermittently with the discharge port. When the discharge port corresponds with the clearance hole, the material is output from the storage chamber to the stirring chamber.

[0008] In a specific embodiment of the present invention, the stirring assembly includes a stirring motor disposed on the main body and a stirring shaft that is throttlely connected to the output end of the stirring motor, one end of the stirring shaft extending into the stirring chamber and having stirring blades thereon; The baffle plate is fixed on the stirring shaft, and the stirring shaft is perpendicular to the baffle plate; there are multiple clearance holes, which are arranged circumferentially with the stirring shaft as the center; the storage part is located on the upper side of the baffle plate.

[0009] In a specific embodiment of the present invention, the baffle plate is further provided with an annular groove, the annular groove is arranged coaxially with the stirring shaft, and a plurality of clearance holes are provided in the annular groove; the output end of the storage section is cylindrical, and its outer diameter is adapted to the width of the annular groove.

[0010] In a specific embodiment of the present invention, the storage section is disposed on the upper part of the main body, and the stirring shaft is arranged vertically; the storage chamber includes a feeding chamber and a discharging chamber, the feeding chamber is arranged at an inclination, the discharging chamber is arranged vertically, the discharging chamber corresponds to the output end of the storage section, and the discharge port is connected to the bottom of the discharging chamber.

[0011] In a specific embodiment of the present invention, the discharge chamber is further provided with a feeding hopper, the upper part of which is connected to the feeding chamber, and the material in the feeding chamber enters the discharge chamber through the feeding hopper.

[0012] In a specific embodiment of the present invention, an anti-blocking component for preventing the hopper from becoming clogged is also included, the anti-blocking component including a drive rod and a pusher portion disposed on the top of the drive rod; An installation block is fixedly connected inside the discharge chamber. The drive rod is arranged vertically and connected to the installation block in a way that allows it to slide up and down. The bottom surface of the drive rod is in contact with the baffle plate, and the pusher is located inside the output end of the hopper. The upper part of the clearance hole is provided with a guide slope; when the discharge port corresponds to the clearance hole, the bottom of the drive rod passes through the clearance hole and is arranged corresponding to the guide slope; during the rotation of the baffle plate, the drive rod moves up and down to drive the pusher to push the material in the output end of the hopper.

[0013] In a specific embodiment of the present invention, the pushing part is spherical, and a channel for material output is formed between the pushing part and the feeding hopper; the upper part of the pushing part is also provided with a plurality of pushing rods.

[0014] The present invention also provides a method for preparing an aviation fuel anti-wear agent, relating to the stirring apparatus described above, comprising the following steps: 1) Preparation of dimer acids; 2) Separate and purify the dimer acid; 3) The dimer acid and alcohol compounds after separation and purification are used to synthesize dimer acid esters, which are aviation fuel anti-wear agents; The stirring device is used in the preparation of dimer acid, and the steps include: putting a preset amount of oleic acid and soft water into the stirring chamber, and putting a preset amount of catalyst and auxiliary agent into the storage chamber; the discharge control component operates to intermittently output the catalyst and auxiliary agent into the stirring chamber; the stirring component operates to make the oleic acid, soft water, catalyst and auxiliary agent react to generate dimer acid.

[0015] In a specific embodiment of the present invention, the alcohol compound is one of ethanol, propanol, isopropanol, n-butanol, isobutanol, n-pentanol, isopentanol, n-hexanol, and isooctanol.

[0016] The present invention provides a stirring apparatus and method for preparing aviation fuel anti-wear agents, which, compared with the prior art, have the following advantages: In this invention, the storage chamber is used to store materials and has a discharge port that communicates with the stirring chamber. The discharge port cooperates with a discharge control component, which is used to intermittently discharge materials from the storage chamber. In the preparation of aviation fuel anti-wear agent, the production materials are oleic acid and catalyst. When using the stirring device to prepare aviation fuel anti-wear agent, oleic acid is placed in the stirring chamber and the catalyst is placed in the storage chamber. The discharge control component works to intermittently output the catalyst from the storage chamber to the stirring chamber. The stirring component is used to stir the oleic acid and the catalyst to mix them. By intermittently discharging the catalyst into the oleic acid, the time required for the oleic acid and the catalyst to mix fully can be shortened, and the stirring efficiency can be improved. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the stirring device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the storage section and the anti-clogging component in an embodiment of the present invention; Figure 3 This is a structural diagram of the discharge control component according to an embodiment of the present invention.

[0018] In the diagram, 1 is the main body; 11 is the mixing chamber; 2 is the mixing assembly; 21 is the mixing motor; 22 is the mixing shaft; 23 is the mixing blade; 3 is the storage section; 31 is the storage chamber; 32 is the hopper; 33 is the mounting block; 4 is the discharge control assembly; 41 is the baffle plate; 42 is the clearance hole; 421 is the guide slope; 43 is the annular groove; 5 is the anti-blocking assembly; 51 is the drive rod; 52 is the pusher section; and 53 is the pusher rod. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] like Figures 1 to 3 As shown in the figure, a preferred embodiment of the present invention provides a stirring device for preparing aviation fuel anti-wear agent, comprising a body 1, a stirring chamber 11 therein, a stirring assembly 2 on the body 1, the stirring end of the stirring assembly 2 extending into the stirring chamber 11, a storage section 3 on the body 1, a storage cavity 31 for storing materials in the storage section 3, and a discharge port communicating with the stirring chamber 11; the body 1 also provides a discharge control assembly 4, which cooperates with the discharge port to allow the storage cavity 31 to discharge materials intermittently.

[0021] In this invention, the storage chamber 31 is used to store materials and has a discharge port that communicates with the stirring chamber 11. The discharge port cooperates with the discharge control component 4, which is used to make the storage chamber 31 discharge materials intermittently. In the preparation of aviation fuel anti-wear agent, the production materials are oleic acid and catalyst. When the stirring device is used to prepare aviation fuel anti-wear agent, oleic acid is placed in the stirring chamber 11 and the catalyst is placed in the storage chamber 31. The discharge control component 4 works to make the catalyst in the storage chamber 31 intermittently output to the stirring chamber 11. The stirring component 2 is used to stir the oleic acid and the catalyst to mix them. By adding the catalyst to the oleic acid in an intermittent discharge manner, the time required for the oleic acid and the catalyst to mix fully can be shortened, and the stirring efficiency can be improved.

[0022] The discharge control component 4 can be a solenoid valve, which is controlled by a controller to open and close intermittently to achieve intermittent discharge from the storage chamber 31; it can also be an auger, which is controlled by a controller to work intermittently to achieve intermittent discharge from the storage chamber 31. This embodiment does not limit this. As a specific implementation of this embodiment, the discharge control component 4 includes a baffle plate 41, which is used to fit against the discharge end of the storage section 3 to block the discharge port; the baffle plate 41 is also provided with a clearance hole 42, and the baffle plate 41 can be moved cyclically so that the clearance hole 42 is intermittently aligned with the discharge port. When the discharge port is aligned with the clearance hole 42, the material is output from the storage chamber 31 into the stirring chamber 11; Specifically, the cyclic movement of the baffle plate 41 can be reciprocating translation or cyclic rotation; when it reciprocates to make the clearance hole 42 intermittently correspond to the discharge port, the baffle plate 41 has a plurality of clearance holes 42 arranged sequentially along a straight line. The baffle plate 41 is driven to reciprocate by a driving source, so that the clearance holes 42 correspond to the discharge port one by one, thereby realizing the intermittent discharge of the storage chamber 31. In this embodiment, the baffle plate 41 rotates cyclically to intermittently align the clearance hole 42 with the discharge port; Specifically, the stirring assembly 2 includes a stirring motor 21 mounted on the main body 1 and a stirring shaft 22 that is drivenly connected to the output end of the stirring motor 21. One end of the stirring shaft 22 extends into the stirring chamber 11 and is provided with stirring blades 23 thereon. The baffle plate 41 is fixed on the stirring shaft 22, and the stirring shaft 22 is perpendicular to the baffle plate 41; there are multiple clearance holes 42, and the multiple clearance holes 42 are arranged circumferentially with the stirring shaft 22 as the center; the storage part 3 is located on the upper side of the baffle plate 41. That is, the baffle plate 41 uses the stirring motor 21 as the driving source for rotation, without the need to set a new driving source to drive the baffle plate 41 to reciprocate, making the stirring device of the present invention more compact in structure. In actual use, the stirring motor 21 drives the stirring shaft 22 to rotate, so that the stirring blades 23 stir the oleic acid and the catalyst. At the same time, the rotation of the stirring shaft 22 will drive the baffle plate 41 to rotate, so that multiple clearance holes 42 rotate around the stirring shaft 22 in a circumferential motion, so that the multiple clearance holes 42 correspond to the discharge port in sequence, so that the material storage chamber 31 outputs material intermittently.

[0023] In this embodiment, the baffle plate 41 is also provided with an annular groove 43, which is coaxially arranged with the stirring shaft 22, and a plurality of clearance holes 42 are provided in the annular groove 43; the output end of the storage section 3 is cylindrical, and its outer diameter is adapted to the width of the annular groove 43; the annular groove 43 plays a limiting role, and during the rotation of the baffle plate 41, the output end of the storage section 3 is always located in the annular groove 43, ensuring the normal output of material in the storage section 3; Specifically, the annular groove 43 is composed of two coaxially arranged annular protrusions.

[0024] In this embodiment, the storage section 3 is located on the upper part of the main body 1. The material in the storage section 3 is output from the storage port due to gravity. The stirring shaft 22 is arranged vertically, that is, the baffle plate 41 is arranged horizontally. This arrangement is simple in structure and easy to manufacture. The storage chamber 31 includes an inlet chamber and an outlet chamber. The inlet chamber is arranged at an angle to slow down the output speed of the material. The outlet chamber is arranged vertically and corresponds to the output end of the storage section 3. The outlet is connected to the bottom of the outlet chamber to ensure that the material can be output based on gravity.

[0025] The discharge chamber is also provided with a feeding hopper 32. The upper part of the feeding hopper 32 is connected to the feeding chamber. The material in the feeding chamber enters the discharge chamber through the feeding hopper 32. The conical structure of the feeding hopper 32 has its larger end connected to the side wall of the storage chamber 31, so that the feeding hopper 32 forms the material outlet of the feeding chamber. This can further slow down the output speed of the material and avoid the material output speed being too fast, resulting in too much output at one time. The small output of the storage chamber 31 at one time is conducive to the full mixing of the material in the mixing chamber 11.

[0026] In this invention, an anti-blocking component 5 is also included to prevent the hopper 32 from becoming blocked. The anti-blocking component 5 includes a drive rod 51 and a pusher part 52 disposed on the top of the drive rod 51. An installation block 33 is fixedly connected inside the discharge chamber. The drive rod 51 is arranged vertically and is connected to the installation block 33 in a way that allows it to slide up and down. The bottom surface of the drive rod 51 is in contact with the baffle plate 41. The pusher part 52 is located inside the output end of the hopper 32. The upper part of the clearance hole 42 is provided with a guide slope 421; when the discharge port corresponds to the clearance hole 42, the bottom of the drive rod 51 passes through the clearance hole 42 and is arranged corresponding to the guide slope 421; when the discharge port is misaligned with the clearance hole 42, the bottom of the drive rod 51 located at the clearance hole 42 will move along the guide slope, so that the drive rod 51 moves upward as a whole; when the bottom surface of the drive rod 51 is in contact with the baffle plate 41, the drive rod 51 will not move up and down under the support of the baffle plate 41. During the rotation of the baffle plate 41, the drive rod 51 moves up and down, driving the pusher part 52 to push the material in the output end of the feed hopper 32, thereby preventing the feed hopper 32 from being blocked; the drive rod 51 includes a contact part that contacts the baffle plate 41 and a connecting part for connecting the pusher part 52. The pushing part 52 is spherical, and a channel for material output is formed between the pushing part 52 and the feeding hopper 32; the upper part of the pushing part 52 is also provided with a plurality of pushing rods 53, which extend upward, making it easier to push the material in the feeding hopper 32 and avoid material blockage of the feeding hopper 32; Specifically, when the discharge port corresponds to the clearance hole 42, the pusher 52 can be located inside the output end of the feed hopper 32 or outside the feed hopper 32. This embodiment does not impose any restrictions on this.

[0027] In this embodiment, the storage section 3 is also provided with an openable and closable sealing cover, and materials are added to the storage chamber 31 by opening the sealing cover; the main body 1 is also provided with an exhaust valve, a feeding pipe and other structures that are connected to the stirring chamber 11.

[0028] The present invention also provides a method for preparing an aviation fuel anti-wear agent, relating to the stirring apparatus described above, comprising the following steps: 1) Preparation of dimer acids; 2) Separate and purify the dimer acid; 3) The dimer acid and alcohol compounds after separation and purification are used to synthesize dimer acid esters, which are aviation fuel anti-wear agents; The stirring device is used in the preparation of dimer acid, and the steps include: putting a preset amount of oleic acid and soft water into the stirring chamber 11, and putting a preset amount of catalyst and auxiliary agent into the storage chamber 31; the discharge control component 4 operates to intermittently output the catalyst and auxiliary agent into the stirring chamber 11; the stirring component 2 operates to make the oleic acid, soft water, catalyst, and auxiliary agent react to generate dimer acid; by stirring the materials for preparing dimer acid with the stirring device, the time required for the materials to be fully mixed can be shortened and the stirring efficiency can be improved; Specifically, the catalyst is kaolin, and the additive is lithium carbonate. The catalyst accounts for 9%-14%, and the additive accounts for 0.8%-1.2%. The percentages shown are by mass, meaning the percentage content of the raw materials. When the stirring device is working, it needs to heat the raw materials in the stirring chamber 11. When the temperature of the raw materials rises to 100°C, the exhaust valve is opened to remove the air from the reactor. Then, the temperature is continued to rise to 245°C and reacted under autogenous pressure for 3 hours. Then, cooling water is introduced to rapidly reduce the pressure and temperature of the reactants. Appropriate amounts of phosphoric acid and soft water are added, and the mixture is stirred at 150°C for 30 minutes. Finally, the material is released and cooled. After filtration, the material is centrifuged and rotary evaporated to obtain dimer acid.

[0029] In this embodiment, a molecular distillation system is used to separate and purify the dimer acid. The specific process is as follows: when the vacuum of the molecular distillation system reaches <5Pa, the feed pump is turned on to feed the crude dimer acid; at the same time, the material entering the molecular distiller is heated and the condenser of the distillation apparatus is cooled. When the temperature and vacuum reach the predetermined values, the metering valve is opened, and the distillate monoacid and the residual dimer acid are obtained from the two outlets respectively; the distillation temperature is controlled at 180℃; the dimer acid distilled from the first stage is subjected to molecular distillation at a distillation temperature of 220℃ to obtain a high-purity dimer acid product.

[0030] In this embodiment, the alcohol compound is isooctanol, which is synthesized with a dimer acid to form isooctyl dimer acid ester; The synthesis process is as follows: high-purity dimer acid and isooctyl alcohol are placed in a container, toluenesulfonic acid is added dropwise, and the mixture is shaken well. Zeolite is then added to the container, and a reflux condenser is assembled after the addition of zeolite is complete. The reaction is stopped after reflux in a water bath for 2 hours, and the mixture is washed with water and sodium carbonate solution until it is neutral. Finally, the mixture is dehydrated using a vacuum dryer to remove impurities and obtain isooctyl dimer acid, which is the anti-wear agent for aviation fuel.

[0031] In another embodiment, the alcohol compound may also be ethanol, propanol, isopropanol, n-butanol, isobutanol, n-pentanol, isopentanol, or n-hexanol, which, when combined with dimer acids, can be synthesized into ethyl dimerate, propyl dimerate, isopropyl dimerate, n-butyl dimerate, isobutyl dimerate, n-pentanol dimerate, isopentanol dimerate, or n-hexanol dimerate, respectively.

[0032] In existing technologies, the most widely used aviation fuel anti-wear agent is T1602 petroleum naphthenic acid type aviation kerosene anti-wear agent. Petroleum naphthenic acid is derived from the diesel alkaline washing process. Naphthenic acid has drawbacks such as a pungent odor and generates hazardous and non-biodegradable waste during production, which does not meet my country's green chemistry development plan. This embodiment uses high-purity dimer acid as raw material and employs a reflux dehydration esterification method to synthesize an aviation fuel anti-wear agent with alcohol compounds. Compared to the existing T1602 petroleum naphthenic acid type aviation kerosene anti-wear agent, it does not generate hazardous or non-biodegradable waste during production, making it more environmentally friendly.

[0033] In practical applications, the viscosity-temperature properties of the above nine dimer acid synthetic esters at 40℃ and 100℃ were analyzed. The results are shown in Table 1 below. As the chain length of the dimer acid synthetic ester increases, its kinematic viscosity also gradually increases. The viscosity of synthetic esters with isomers is higher than that of synthetic esters without isomers. Therefore, as the kinematic viscosity of the nine different dimer acid synthetic esters increases, the thickness of the adsorption film also increases accordingly, which can improve the load-bearing capacity of the dimer acid synthetic esters and enhance their anti-wear properties. Table 1 Viscosity-temperature properties of synthesized dimer acid esters In summary, the isooctyl dimerate aviation fuel anti-wear agent synthesized by isooctanol and dimer acid in this embodiment has the best anti-wear performance.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A stirring apparatus for preparing an anti-wear agent for aviation fuel, comprising a body, wherein a stirring chamber is provided within the body, and a stirring assembly is provided on the body, wherein the stirring end of the stirring assembly extends into the stirring chamber, characterized in that, The main body is also provided with a material storage section, which has a material storage cavity for storing materials. The material storage cavity has a discharge port that communicates with the stirring cavity. The main body is also provided with a discharge control component, which cooperates with the discharge port to make the material storage cavity discharge materials intermittently.

2. The stirring apparatus for preparing aviation fuel anti-wear agent according to claim 1, characterized in that, The discharge control component includes a baffle plate, which is used to fit against the discharge end of the storage section to block the discharge port; the baffle plate is also provided with a clearance hole, and the baffle plate can be moved cyclically so that the clearance hole corresponds intermittently with the discharge port. When the discharge port corresponds with the clearance hole, the material is output from the storage chamber to the stirring chamber.

3. The stirring apparatus for preparing aviation fuel anti-wear agent according to claim 2, characterized in that, The stirring assembly includes a stirring motor mounted on the main body and a stirring shaft that is throttle-connected to the output end of the stirring motor. One end of the stirring shaft extends into the stirring chamber and is provided with stirring blades thereon. The baffle plate is fixed on the stirring shaft, and the stirring shaft is perpendicular to the baffle plate; there are multiple clearance holes, which are arranged circumferentially with the stirring shaft as the center; the storage part is located on the upper side of the baffle plate.

4. The stirring apparatus for preparing aviation fuel anti-wear agent according to claim 3, characterized in that, The baffle plate is also provided with an annular groove, which is arranged coaxially with the stirring shaft, and a plurality of clearance holes are provided in the annular groove; the output end of the storage section is cylindrical, and its outer diameter is adapted to the width of the annular groove.

5. The stirring apparatus for preparing aviation fuel anti-wear agent according to claim 4, characterized in that, The storage section is located on the upper part of the main body, and the stirring shaft is arranged vertically. The storage chamber includes a feeding chamber and a discharging chamber. The feeding chamber is arranged at an incline, and the discharging chamber is arranged vertically. The discharging chamber corresponds to the output end of the storage section, and the discharge port is connected to the bottom of the discharging chamber.

6. The stirring apparatus for preparing aviation fuel anti-wear agent according to claim 5, characterized in that, The discharge chamber is also provided with a feeding hopper, the upper part of which is connected to the feeding chamber, and the material in the feeding chamber enters the discharge chamber through the feeding hopper.

7. The stirring apparatus for preparing aviation fuel anti-wear agent according to claim 6, characterized in that, It also includes an anti-blocking component for preventing the hopper from becoming clogged, the anti-blocking component including a drive rod and a pusher part disposed on the top of the drive rod; An installation block is fixedly connected inside the discharge chamber. The drive rod is arranged vertically and connected to the installation block in a way that allows it to slide up and down. The bottom surface of the drive rod is in contact with the baffle plate, and the pusher is located inside the output end of the hopper. The upper part of the clearance hole is provided with a guide slope; when the discharge port corresponds to the clearance hole, the bottom of the drive rod passes through the clearance hole and is arranged corresponding to the guide slope; during the rotation of the baffle plate, the drive rod moves up and down to drive the pusher to push the material in the output end of the hopper.

8. The stirring apparatus for preparing aviation fuel anti-wear agent according to claim 7, characterized in that, The pushing part is spherical, and a channel for material output is formed between the pushing part and the feeding hopper; the upper part of the pushing part is also provided with multiple pushing rods.

9. A method for preparing an anti-wear agent for aviation fuel, characterized in that, The stirring apparatus according to any one of claims 1-8 includes the following steps: 1) Preparation of dimer acids; 2) Separate and purify the dimer acid; 3) The dimer acid and alcohol compounds after separation and purification are used to synthesize dimer acid esters, which are aviation fuel anti-wear agents; The stirring device is used in the preparation of dimer acid, and the steps include: putting a preset amount of oleic acid and soft water into the stirring chamber, and putting a preset amount of catalyst and auxiliary agent into the storage chamber; the discharge control component operates to intermittently output the catalyst and auxiliary agent into the stirring chamber; the stirring component operates to make the oleic acid, soft water, catalyst and auxiliary agent react to generate dimer acid.

10. The method for preparing aviation fuel anti-wear agent according to claim 9, characterized in that, The alcohol compound is one of ethanol, propanol, isopropanol, n-butanol, isobutanol, n-pentanol, isopentanol, n-hexanol, and isooctanol.

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