System for preparing high-melting-point heterogeneous Fischer-Tropsch wax by taking Fischer-Tropsch synthetic wax as raw material

Abstract

The utility model relates to a system for preparing high-melting-point isomerization Fischer-Tropsch wax by taking Fischer-Tropsch synthetic wax as a raw material, the system comprises a raw material preheating tank, a hydroisomerization reactor, a plunger pump and a gas-liquid separation unit, the raw material preheating tank is provided with a feed port and a discharge port, the feed port is communicated with a raw material tank area, the discharge port is communicated with the plunger pump, and the gas-liquid separation unit is provided with a gas-liquid separation unit. The plunger pump is used for pumping out raw material wax in the raw material preheating tank and then conveying the raw material wax into the hydroisomerization reactor through a plunger pump outlet pipeline, and the gas-liquid separation unit is used for carrying out gas-liquid separation on a product from the hydroisomerization reactor. According to the system for preparing the high-melting-point isomerization Fischer-Tropsch wax by taking the Fischer-Tropsch synthetic wax as the raw material, the raw material preheating tank is introduced to heat the raw material Fischer-Tropsch synthetic wax, so that the raw material Fischer-Tropsch synthetic wax can be effectively prevented from solidifying and blocking a pipeline or a plunger pump, and the gas-liquid separation unit separates a reaction product from hydrogen; and the separated hydrogen can be recycled.

Description

Technical Field

[0001] The present disclosure relates to the technical field of isomerized wax production, and more precisely, to a system for preparing high-melting-point isomerized Fe wax using Fe wax as a raw material. Background Art

[0002] The production of high-melting-point isomerized Fischer-Tropsch wax mainly refers to the conversion of the original Fischer-Tropsch synthetic wax composed of saturated, long-chain normal alkanes into high-melting-point Fischer-Tropsch wax mainly composed of isomerized alkanes. Among them, high-melting-point Fischer-Tropsch wax has the characteristics of low hardness, good flexibility, large elongation and good flexibility, and can be widely used in military, electronics, metallurgy, chemical industry, daily chemical, pharmaceutical and food industries.

[0003] However, in the existing technology, since the raw material ferrous synthetic wax has the characteristics of high hardness and high melting point, it is very easy to solidify during the production process, thereby clogging the pipeline and causing equipment damage. In addition, hydrogen needs to be continuously introduced during the hydrogenation isomerization process, which consumes a large amount of hydrogen. Utility Model Content

[0004] In view of this, the embodiments of the present disclosure provide a system for preparing high-melting-point isomerized Fe-wax using Fe-wax synthetic wax as raw material to solve the technical defects existing in the prior art.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0006] The present disclosure provides a system for preparing high-melting-point isomerized Fe-wax using Fe-wax synthetic wax as raw material, comprising:

[0007] A raw material preheating tank, wherein the raw material preheating tank is provided with a feed port and a discharge port, the feed port is connected to the raw material tank area, and the raw material preheating tank is configured to preheat the raw material wax from the raw material tank area;

[0008] a hydroisomerization reactor, wherein the hydroisomerization reactor is provided with a hydroisomerization reactor inlet and a hydroisomerization reactor outlet, and the hydroisomerization reactor is configured to provide a reaction site for a hydroisomerization reaction;

[0009] a plunger pump, the plunger pump being provided with a plunger pump inlet and a plunger pump outlet, the plunger pump inlet being configured to communicate with a feed port of the raw material preheating tank, the plunger pump being configured to extract the raw material wax from the raw material preheating tank and then transport it to the hydroisomerization reactor through the plunger pump outlet pipeline;

[0010] A gas-liquid separation unit, wherein a first inlet of the gas-liquid separation unit is connected to the outlet of the hydroisomerization reactor, and the gas-liquid separation unit is configured to perform gas-liquid separation on the product from the hydroisomerization reactor.

[0011] In one embodiment of the present disclosure, the pump head of the plunger pump is further configured with a heating device, and the heating device is configured to heat the raw wax flowing through the plunger pump.

[0012] In one embodiment of the present disclosure, the system is configured with a hydrogenation channel, which is constructed to be connected to hydrogen at one end and connected to the plunger pump outlet pipeline at the other end. The hydrogen is configured to enter the hydroisomerization reactor through the hydrogenation channel and the plunger pump outlet pipeline.

[0013] In one embodiment of the present disclosure, the gas-liquid separation unit includes a No. 1 separation tank, which is provided with a first inlet, a first exhaust port and a first drain port, wherein the first exhaust port is configured to be connected to the hydrogenation channel through a first circulation passage; the first drain port is connected to a first collecting tank, and the first collecting tank is configured to collect the generated liquid isomerized wax.

[0014] In one embodiment of the present disclosure, the gas-liquid separation unit includes a No. 2 separation tank, which is provided with a second inlet, a second exhaust port and a second drain port, the second inlet being connected to the outlet of the hydroisomerization reactor, the second exhaust port being configured to be connected to the first circulation passage through a second circulation passage; the second drain port is connected to a second collection tank, and the first collection tank is configured to collect the generated liquid isomerized wax.

[0015] In one embodiment of the present disclosure, a third bypass is provided on the first circulation passage, a No. 1 back pressure valve is provided on the third bypass, and the No. 1 back pressure valve is configured to control the system pressure of the No. 1 separation tank.

[0016] In one embodiment of the present disclosure, a fourth bypass is provided on the second circulation passage, and the fourth bypass is configured to be in communication with the third bypass. A No. 2 back pressure valve is provided on the fourth bypass, and the No. 2 back pressure valve is configured to control the system pressure of the No. 2 separation tank.

[0017] In one embodiment of the present disclosure, a No. 1 pressure gauge is provided on the top of the raw material preheating tank, and a pressure regulating valve is provided on the first bypass of the No. 1 pressure gauge, and the pressure regulating valve is configured to regulate the pressure of the raw material preheating tank.

[0018] In one embodiment of the present disclosure, a No. 2 pressure gauge is provided on the plunger pump outlet pipeline, and the No. 2 pressure gauge is arranged between the hydrogenation channel and the inlet of the hydroisomerization reactor. The No. 2 pressure gauge is configured to monitor the pressure of the plunger pump outlet pipeline.

[0019] In one embodiment of the present disclosure, a second bypass is provided on the plunger pump outlet pipeline, and the second bypass is provided between the plunger pump outlet and the hydrogenation channel.

[0020] The system provided by the present invention is for preparing high-melting-point isomerized Fe dewaxed wax using Fe dewaxed wax as raw material. A raw material preheating tank is provided, and a heating device is added to the pump head of the plunger pump. This can effectively prevent the raw material Fe dewaxed wax from solidifying before being introduced into the hydrogenation isomerization reactor, thereby clogging the pipeline and causing equipment damage. In addition, a hydrogen circulation path is added after the separation device, realizing the recycling of hydrogen and greatly reducing the hydrogen consumption.

[0021] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a system for preparing high-melting-point isomerized Fe-wax using Fe-wax synthetic wax as raw material, provided by one embodiment of the present disclosure.

[0023] 1-Raw material preheating tank; 2-Plunger pump; 3-Hydroisomerization reactor; 4-Separation tank No. 1; 5-Separation tank No. 2; 6-Feed port; 7-Discharge port; 8-Hydroisomerization reactor inlet; 9-Hydroisomerization reactor outlet; 10-Plunger pump inlet; 11-Plunger pump outlet; 12-Plunger pump outlet pipeline; 13-First inlet; 14-First exhaust port; 15-First liquid discharge port; 16-Second inlet; 17-Second exhaust port; 18-Second liquid discharge port; 19-First collecting tank; 20-Second collecting tank; 21-Hydrogenation channel; 22-First circulation channel; 23-Second circulation channel; 24-First bypass; 25-Second bypass; 26-Third bypass; 27-Fourth bypass; 28-Back pressure valve No. 1; 29-Back pressure valve No. 2; 30-Pressure gauge No. 1; 31-Pressure regulating valve; 32-Pressure gauge No. 2; 33-Flow meter. DETAILED DESCRIPTION

[0024] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0027] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0028] The specific embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0029] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0030] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the prerequisite for each other's existence.

[0031] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0032] The present disclosure relates to a system for preparing high-melting-point isomerized Fe-wax using Fe-wax synthetic wax as raw material. The system comprises a raw material preheating tank, a hydroisomerization reactor, a plunger pump and a gas-liquid separation unit, wherein the raw material preheating tank is provided with a feed port and a discharge port, the feed port is connected to the raw material tank area, and the discharge port is connected to the plunger pump, the plunger pump is used to extract the raw material wax in the raw material preheating tank and then transport it to the hydroisomerization reactor through the plunger pump outlet pipeline, and the gas-liquid separation unit is used to perform gas-liquid separation on the product from the hydroisomerization reactor.

[0033] The present disclosure provides a high-melting-point isomerization Fischer-Tropsch wax preparation system using Fischer-Tropsch wax as raw material. Since the raw material Fischer-Tropsch wax has the characteristics of high hardness and high melting point, it is easy to solidify and cause the pipeline or plunger pump to be blocked. Therefore, a raw material preheating tank is introduced to heat the raw material Fischer-Tropsch wax, thereby preventing the raw material Fischer-Tropsch wax from solidifying before entering the hydroisomerization reactor and then blocking the pipeline. The gas-liquid separation unit separates the reaction product from the hydrogen, so that the separated hydrogen can be recycled.

[0034] For ease of understanding, refer to Figure 1 , the specific structure and working principle of the disclosed system for preparing high-melting-point isomerized Fe dewaxing wax using Fe dewaxing synthetic wax as raw material are described in detail with reference to an embodiment.

[0035] like Figure 1As shown, the present disclosure provides a system for preparing high-melting-point isomerized Fe dewax using Fe dewax synthetic wax as raw material, comprising: a raw material preheating tank 1, a hydroisomerization reactor 3, a plunger pump 2, and a gas-liquid separation unit, wherein the raw material preheating tank 1 is provided with a feed port 6 and a discharge port 7, the feed port 6 is connected to the raw material tank area, and the raw material preheating tank 1 is used to preheat the raw material wax from the raw material tank area;

[0036] Specifically, the raw material preheating tank 1 is provided with a feed port 6 and a discharge port 7. The feed port 6 is used to input the Fischer-Tropsch wax in the raw material tank area into the raw material preheating tank 1. Since the raw material Fischer-Tropsch wax selected by this device has the characteristics of high hardness and high melting point, it is very easy to solidify. In order to ensure that the raw material Fischer-Tropsch wax is in a flowing state before being introduced into the hydroisomerization reactor 3, this system is provided with a raw material preheating tank 1 for preheating the raw material Fischer-Tropsch wax from the raw material tank area.

[0037] The plunger pump 2 is provided with a plunger pump inlet 10 and a plunger pump outlet 11. The plunger pump inlet 10 is configured to communicate with the feed port 6 of the raw material preheating tank 1. The plunger pump 2 is used to extract the raw material wax from the raw material preheating tank 1 and transport it to the hydroisomerization reactor 3 through the plunger pump outlet pipeline 12;

[0038] Specifically, the plunger pump inlet 10 is specially configured to be in close communication with the feed port 6 of the feed preheating tank 1. This ensures that the raw wax can be effectively extracted from the preheating tank and delivered to the hydroisomerization reactor 3 through the plunger pump outlet line 12. The plunger pump 2 is a commonly used positive displacement pump, which is provided with a plunger pump inlet 10 and a plunger pump outlet 11. The working principle of the plunger pump 2 is to use a reciprocating plunger to suck in and discharge liquid. When the plunger is pulled backward, the raw wax enters the pump body through the plunger pump inlet 10; when the plunger is pushed forward, the raw wax is compressed and delivered through the plunger pump outlet 11. The plunger pump 2 ensures that the raw wax can enter the hydroisomerization reactor 3 at a stable flow rate and pressure.

[0039] The hydroisomerization reactor 3 is provided with a hydroisomerization reactor inlet 8 and a hydroisomerization reactor outlet 9. The hydroisomerization reactor 3 is used to provide a reaction site for the hydroisomerization reaction;

[0040] Specifically, the hydroisomerization reactor inlet 8 is configured to be closely connected with the plunger pump outlet 11. The hydroisomerization reactor 3 is a device specially used for hydroisomerization reaction. It is provided with a hydroisomerization reactor inlet 8 and a hydroisomerization reactor outlet 9. During the hydroisomerization reaction, the raw material Fischer-Tropsch wax enters the hydroisomerization reactor 3 through the hydroisomerization reactor inlet 8, and then, under the action of the catalyst, chemically reacts with hydrogen to complete the isomerization process of the molecular structure. The inside of the hydroisomerization reactor 3 usually maintains certain temperature and pressure conditions to ensure that the reaction can proceed smoothly. In one embodiment provided by the present disclosure, the raw material Fischer-Tropsch wax is first melted through the raw material preheating tank 1 and then passed through the plunger pump 2 and mixed with hydrogen and transported to the hydroisomerization reactor 3 together with the catalyst and hydrogen at a pressure of 1-2 MPa, a temperature of 250-300°C, and an air velocity of 0.7-1.2h -1 The reaction was carried out under experimental conditions.

[0041] The first inlet 13 of the gas-liquid separation unit is connected to the outlet 9 of the hydroisomerization reactor, and the gas-liquid separation unit is used to perform gas-liquid separation on the product from the hydroisomerization reactor 3.

[0042] Specifically, the main function of the gas-liquid separation unit is to perform gas-liquid separation on the product from the hydroisomerization reactor 3. The above-mentioned product is high-melting-point isomerized ferrous dewax. In the hydroisomerization reactor 3, the raw material ferrous dewax undergoes a complex chemical reaction to synthesize wax, and the generated high-melting-point isomerized ferrous dewax is mixed with hydrogen. The mixture needs to be separated into gas and liquid by the gas-liquid separation unit to obtain pure high-melting-point isomerized ferrous dewax.

[0043] In one embodiment of the present disclosure, the pump head of the plunger pump 2 is further configured with a heating device, and the heating device is used to heat the raw wax flowing through the plunger pump 2.

[0044] Specifically, the pump head portion of the plunger pump 2 disclosed herein is specially configured with a heating device, and this configuration is particularly important for processing high-viscosity raw material synthetic wax. The function of the heating device is to heat the raw material synthetic wax flowing through the plunger pump 2, and to reduce the viscosity of the raw material synthetic wax by increasing the temperature. This is because the raw material synthetic wax has the characteristics of high hardness and high melting point, which will increase the pumping difficulty of the plunger pump 2 at lower temperatures, and may cause the performance of the pump to deteriorate or even be damaged. By adding a heating device to the pump head of the plunger pump 2, the raw material wax can be made easier to flow, thereby ensuring the normal operation of the pump and extending its service life.

[0045] In one embodiment of the present disclosure, the system is configured with a hydrogenation channel 21, one end of the hydrogenation channel 21 is connected to hydrogen, and the other end is connected to the plunger pump outlet pipeline 12. Hydrogen enters the hydroisomerization reactor 3 through the hydrogenation channel 21 and the plunger pump outlet pipeline 12.

[0046] Specifically, hydrogen is introduced into the hydrogenation channel 21 and then transported to the plunger pump outlet pipe 12 through this hydrogenation channel 21. In this process, the hydrogen is mixed with the raw material Fischer-Tropsch wax output from the plunger pump 2 and transported to the hydroisomerization reactor 3 through the plunger pump outlet pipe 12. In the hydroisomerization reactor 3, the hydrogen and the raw material wax react chemically under the action of the catalyst to complete the hydroisomerization process of the raw material Fischer-Tropsch wax. This configuration ensures that the hydrogen can be evenly distributed and fully contacted with the raw material Fischer-Tropsch wax, thereby improving the reaction efficiency and product quality. In order to ensure a smooth supply of hydrogen, a flow meter 33 is also provided on the hydrogenation channel 21 to ensure that the entire hydrogenation process is carried out under appropriate operating conditions.

[0047] In one embodiment of the present disclosure, the gas-liquid separation unit includes a No. 1 separation tank 4, which is provided with a first inlet 13, a first exhaust port 14 and a first drain port 15. The first exhaust port 14 is connected to the hydrogenation channel 21 through a first circulation passage 22; the first drain port 15 is connected to a first collection tank 19, which is used to collect the generated liquid isomerized wax.

[0048] Specifically, the first exhaust port 14 is connected to the hydrogenation channel 21 through the first circulation passage 22. The purpose of this design is that after the gas-liquid mixture enters the No. 1 separation tank 4, the hydrogen therein can be guided back to the hydrogenation channel 21 through the first exhaust port 14, and then participate in the hydrogenation isomerization reaction again. This recycling process helps to improve the utilization rate of hydrogen. The above-mentioned liquid isomerized wax refers to the target product high-melting point isomerized wax dewaxing. After the high-melting point isomerized wax is discharged from the first drain port 15, it will enter the first collection tank 19. The first collection tank 19 is specifically used to collect the generated liquid isomerized wax for subsequent further processing or direct use as a product.

[0049] In one embodiment of the present disclosure, the gas-liquid separation unit includes a No. 2 separation tank 5, which is provided with a second inlet 16, a second exhaust port 17 and a second drain port 18. The second inlet 16 is connected to the outlet 9 of the hydroisomerization reactor, and the second exhaust port 17 is connected to the first circulation passage 22 through a second circulation passage 23; the second drain port 18 is connected to the second collection tank 20, and the first collection tank 19 is used to collect the generated liquid isomerized wax.

[0050] Specifically, the second inlet 16 is closely connected to the hydroisomerization reactor outlet 9 and is used to receive the product from the hydroisomerization reactor 3. The second exhaust port 17 is connected to the first circulation passage 22 via the second circulation passage 23. The purpose of this design is that after the gas-liquid mixture enters the second separation tank 5, the gas portion can be guided to the first circulation passage 22 through the second exhaust port 17 and then participate in the hydroisomerization reaction again. This recycling process helps to improve the utilization rate of hydrogen.

[0051] In one embodiment of the present disclosure, a third bypass 26 is provided on the first circulation passage 22 , and a No. 1 back pressure valve 28 is provided on the third bypass 26 . The No. 1 back pressure valve 28 is used to control the system pressure of the No. 1 separation tank 4 .

[0052] Specifically, the back-pressure valve works by utilizing the elastic force of the spring. When the system pressure is smaller than the set pressure, the diaphragm blocks the pipeline under the action of the spring force; when the system pressure is larger than the set pressure, the diaphragm compresses the spring, the pipeline is connected, and the liquid passes through the back-pressure valve. In actual application, when the pressure in the No. 1 separation tank 4 is greater than the set pressure, the No. 1 back-pressure valve 28 automatically opens, and part of the hydrogen passes through the No. 1 back-pressure valve 28 and enters the third bypass 26, and is finally discharged into the exhaust gas treatment device. When the pressure in the No. 1 separation tank 4 is lower than the set pressure, the No. 1 back-pressure valve 28 automatically closes, and all the separated hydrogen enters the first circulation path 22, and then participates in the hydrogenation isomerization reaction again.

[0053] In one embodiment of the present disclosure, a fourth bypass 27 is provided on the second circulation passage 23, and the fourth bypass 27 is connected to the third bypass 26. A No. 2 back pressure valve 29 is provided on the fourth bypass 27, and the No. 2 back pressure valve 29 is used to control the system pressure of the No. 2 separation tank 5.

[0054] Specifically, the working principle of the No. 2 back-pressure valve 29 is the same as that of the No. 1 back-pressure valve 28. In actual application, when the pressure in the No. 2 separation tank 5 is greater than the set pressure, the No. 2 back-pressure valve 29 automatically opens, and part of the hydrogen passes through the No. 2 back-pressure valve 29 and enters the fourth bypass 27, and is finally discharged into the exhaust gas treatment device. When the pressure in the No. 2 separation tank 5 is less than the set pressure, the No. 2 back-pressure valve 29 automatically closes, and all the separated hydrogen enters the second circulation path 23, and is finally introduced into the first circulation path 22, and then participates in the hydrogenation isomerization reaction again.

[0055] In one embodiment of the present disclosure, a No. 1 pressure gauge 30 is provided on the top of the raw material preheating tank 1 , and a pressure regulating valve 31 is provided on the first bypass 24 of the No. 1 pressure gauge 30 . The pressure regulating valve 31 is used to adjust the pressure of the raw material preheating tank 1 .

[0056] Specifically, when pressure gauge 30 detects excessive pressure within raw material preheating tank 1, pressure regulating valve 31 automatically opens, allowing some gas to escape through first bypass 24 to the atmosphere or another designated exhaust system, thereby reducing the pressure within the tank. The primary function of pressure regulating valve 31 is to automatically adjust the pressure in raw material preheating tank 1 based on the reading of pressure gauge 30, ensuring it remains within a desired range. This design ensures that raw material preheating tank 1 operates under stable pressure conditions.

[0057] In one embodiment of the present disclosure, a second pressure gauge 32 is provided on the plunger pump outlet pipeline 12 . The second pressure gauge 32 is provided between the hydrogenation channel 21 and the hydroisomerization reactor inlet 8 . The second pressure gauge 32 is used to monitor the pressure of the plunger pump outlet pipeline 12 .

[0058] Specifically, to ensure that the raw material ferrous wax in the plunger pump outlet pipeline 12 enters the hydroisomerization reactor 3 under appropriate conditions, a second pressure gauge 32 is specifically provided on the plunger pump outlet pipeline 12. The second pressure gauge 32 is located between the hydrogenation channel 21 and the hydroisomerization reactor inlet 8. This allows for real-time monitoring of the pressure level in the plunger pump outlet pipeline 12. When the pressure in the plunger pump outlet pipeline 12 is too high or too low, the second pressure gauge 32 promptly displays the information, allowing the operator or the control system to take appropriate measures to adjust the pressure.

[0059] In one embodiment of the present disclosure, a second bypass 25 is provided on the plunger pump outlet pipeline 12 , and the second bypass 25 is provided between the plunger pump outlet 11 and the hydrogenation channel 21 .

[0060] Specifically, a second bypass 25 is specially provided on the plunger pump outlet pipeline 12, and the bypass is located between the plunger pump outlet 11 and the hydrogenation channel 21. The main function of setting the second bypass 25 is to judge the blockage condition of the plunger pump 2. Since the raw wax has the characteristics of high hardness and high melting point, even if the heating device of the raw material preheating tank 1 and the pump head of the plunger pump 2 is added, the plunger pump 2 may be blocked. When the amount of liquid isomerized wax flowing out of the first discharge port 15 of the No. 1 separation tank 4 and the second discharge port 18 of the No. 2 separation tank 5 is significantly reduced, the plunger pump outlet pipeline 12 is closed and the second bypass 25 is opened. If there is no raw wax or a small amount of raw wax flowing out, it means that the plunger pump 2 is blocked, and the staff is required to repair the plunger pump 2 at this time.

[0061] The system provided by the present disclosure for preparing high-melting-point isomerized Fe dewaxed wax using Fe dewaxed wax as raw material has a raw material preheating tank 1 and a heating device added to the pump head of the plunger pump 2. Therefore, the raw material Fe dewaxed wax can be effectively prevented from solidifying before being passed into the hydroisomerization reactor 3, thereby clogging the pipeline or the plunger pump 2 and causing equipment damage. In addition, a hydrogen circulation path is added after the separation device, thereby realizing the recycling of hydrogen and greatly reducing the consumption of hydrogen.

[0062] It should be noted that for the aforementioned method embodiments, for ease of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present disclosure is not limited by the order of the actions described, because according to the present disclosure, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present disclosure.

[0063] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] The preferred embodiments of the present disclosure disclosed above are intended only to help illustrate the present disclosure. The optional embodiments do not describe all details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made based on the content of the present disclosure. The present disclosure selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present disclosure, so that those skilled in the art can better understand and utilize the present disclosure. The present disclosure is limited only by the claims and their full scope and equivalents.

Claims

1. A system for preparing high melting point isomerized Fe dewax using Fe dewax synthetic wax as raw material, characterized in that: include: A raw material preheating tank (1), the raw material preheating tank (1) being provided with a feed port (6) and a discharge port (7), the feed port (6) being in communication with a raw material tank area, the raw material preheating tank (1) being configured to preheat the raw material wax from the raw material tank area; A hydroisomerization reactor (3), wherein the hydroisomerization reactor (3) is provided with a hydroisomerization reactor inlet (8) and a hydroisomerization reactor outlet (9), and the hydroisomerization reactor (3) is configured to provide a reaction site for a hydroisomerization reaction; A plunger pump (2), the plunger pump (2) being provided with a plunger pump inlet (10) and a plunger pump outlet (11), the plunger pump inlet (10) being configured to communicate with a feed port (6) of the raw material preheating tank (1), the plunger pump (2) being configured to extract the raw material wax from the raw material preheating tank (1) and then transport the extracted raw material wax to the hydroisomerization reactor (3) through a plunger pump outlet pipeline (12); A gas-liquid separation unit, wherein the first inlet (13) of the gas-liquid separation unit is connected to the outlet (9) of the hydroisomerization reactor, and the gas-liquid separation unit is configured to perform gas-liquid separation on the product from the hydroisomerization reactor (3).

2. The system according to claim 1, wherein The pump head of the plunger pump (2) is further provided with a heating device, and the heating device is configured to heat the raw wax flowing through the plunger pump (2).

3. The system according to claim 1, wherein: The system is equipped with a hydrogenation channel (21), one end of the hydrogenation channel (21) is connected to the hydrogen, and the other end is connected to the plunger pump outlet pipeline (12). The hydrogen is configured to enter the hydroisomerization reactor (3) through the hydrogenation channel (21) and the plunger pump outlet pipeline (12).

4. The system according to claim 3, wherein: The gas-liquid separation unit includes a No. 1 separation tank (4), which is provided with a first inlet (13), a first exhaust port (14) and a first drain port (15), wherein the first exhaust port (14) is configured to communicate with the hydrogenation channel (21) through a first circulation passage (22); the first drain port (15) is connected to a first collection tank (19), and the first collection tank (19) is configured to collect the generated liquid isomerized wax.

5. The system according to claim 4, wherein: The gas-liquid separation unit includes a No. 2 separation tank (5), and the No. 2 separation tank (5) is provided with a second inlet (16), a second exhaust port (17) and a second drain port (18), wherein the second inlet (16) is connected to the outlet (9) of the hydroisomerization reactor, and the second exhaust port (17) is configured to be connected to the first circulation passage (22) through a second circulation passage (23); the second drain port (18) is connected to a second collection tank (20), and the first collection tank (19) is configured to collect the generated liquid isomerized wax.

6. The system according to claim 5, wherein: A third bypass (26) is provided on the first circulation passage (22), and a No. 1 back pressure valve (28) is provided on the third bypass (26). The No. 1 back pressure valve (28) is configured to control the system pressure of the No. 1 separation tank (4).

7. The system according to claim 6, wherein: A fourth bypass (27) is provided on the second circulation passage (23), and the fourth bypass (27) is configured to communicate with the third bypass (26). A second back pressure valve (29) is provided on the fourth bypass (27), and the second back pressure valve (29) is configured to control the system pressure of the second separation tank (5).

8. The system according to claim 1, wherein: A No. 1 pressure gauge (30) is provided on the top of the raw material preheating tank (1), and a pressure regulating valve (31) is provided on the first bypass (24) of the No. 1 pressure gauge (30). The pressure regulating valve (31) is configured to regulate the pressure of the raw material preheating tank (1).

9. The system according to claim 3, wherein: A second pressure gauge (32) is provided on the plunger pump outlet pipeline (12). The second pressure gauge (32) is provided between the hydrogenation channel (21) and the inlet (8) of the hydroisomerization reactor. The second pressure gauge (32) is configured to monitor the pressure of the plunger pump outlet pipeline (12).

10. The system according to claim 9, wherein: A second bypass (25) is provided on the plunger pump outlet pipeline (12), and the second bypass (25) is provided between the plunger pump outlet (11) and the hydrogenation channel (21).

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