Renewable energy self-adaptive CO2 methanol synthesis reactor

Abstract

The invention discloses a renewable energy self-adaptive CO2 methanol synthesis reactor, relates to a methanol synthesis reactor, and aims to solve the problems that a conventional methanol synthesis reactor usually needs to preheat raw material gas, the flow and component proportion of the raw material gas are difficult to keep constant, and the temperature of the raw material gas fluctuates. The device comprises a gas mixer, a preheater, a blender, a synthesis system, a gas collector and a sealing system, the gas mixer, the preheater, the blender, the synthesis system and the gas collector are vertically connected and fixed along the linear direction, and the gas mixer and the preheater, the preheater and the blender, the blender and the synthesis system as well as the synthesis system and the gas collector are sealed through flange plates and sealing systems. The invention belongs to the field of methanol synthesis.

Description

Technical Field

[0001] The invention relates to a methanol synthesis reactor, in particular to an adaptive CO2 methanol synthesis reactor using renewable energy. The invention belongs to the field of methanol synthesis. Background Art

[0002] Carbon dioxide hydrogenation to methanol is a technology that converts carbon dioxide (CO2) and hydrogen into methanol under the action of a catalyst. This process can not only reduce greenhouse gas emissions, but also convert renewable energy into chemical energy. Traditional methanol synthesis mainly relies on fossil fuels such as natural gas and coal. These processes not only consume a lot of energy, but also emit a lot of carbon dioxide. With the increasingly serious problem of global climate change, it is particularly important to develop a methanol synthesis technology that can utilize renewable energy and reduce carbon dioxide emissions.

[0003] Conventional synthetic methanol reactors usually need to preheat the raw gas. However, for raw gas prepared from renewable energy (wind and solar power generation - water electrolysis to produce hydrogen), due to the large fluctuations in wind and solar power generation load, it is difficult to keep the flow rate and composition ratio of the raw gas constant, and the raw gas temperature fluctuates. The CO2 synthesis of methanol reaction has strict requirements on the reaction temperature range, so it is necessary to develop an adaptive reactor to maintain a constant reactor temperature range, ensure a high level of CO2 conversion rate and extend the service life of the catalyst. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that conventional synthetic methanol reactors usually need to preheat the raw gas, the flow rate and component ratio of the raw gas are difficult to maintain constant, and the raw gas temperature fluctuates. Therefore, it is necessary to provide a renewable energy adaptive CO2 synthetic methanol reactor to maintain a constant reactor temperature range.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] An adaptive CO2 methanol synthesis reactor for renewable energy, comprising a gas mixer, a preheater, a blender, a synthesis system, a gas collector and a sealing system;

[0007] The mixer, preheater, blender, synthesis system and gas collector are vertically connected and fixed in a straight line direction, and the mixer and preheater, the preheater and blender, the blender and synthesis system, and the synthesis system and gas collector are sealed by flanges and sealing systems.

[0008] Further, the synthesis system includes a synthesizer and a secondary synthesizer;

[0009] The top end of the synthesizer is connected to the bottom end of the blender and is sealed through a sealing system, and the bottom end of the synthesizer is connected to the top end of the secondary synthesizer and is sealed through a sealing system.

[0010] Furthermore, the aerator comprises a four-way pipe and a mixer housing, and the outlet end of the four-way pipe is communicated with the inlet end of the mixer housing.

[0011] Furthermore, the preheater includes a preheater shell, a preheater heating coil and a plurality of gas mixing tubes;

[0012] The preheater heating coil is arranged on the preheater shell, and a plurality of gas mixing tubes are arranged in parallel and installed in the preheater shell. The top end of the preheater shell is fixedly connected to the outlet end of the mixer shell, and the top ends of the plurality of gas mixing tubes are communicated with the mixer shell.

[0013] Further, the blender includes a blender housing and a blender distributor;

[0014] The blender distributor is installed on the blender shell, the top end of the blender shell is fixedly connected to the bottom end of the preheater shell, and the inlet of the blender distributor is communicated with the outlets of a plurality of gas mixing tubes.

[0015] Further, the blender distributor comprises a connecting barrel, a distributor, a distributor punching hole and a distributor bottom circular hole;

[0016] The distributor inlet is installed on the connecting cylinder, a plurality of distributor punching holes are processed radially on the distributor, and a plurality of distributor bottom circular holes are processed at the bottom end of the distributor.

[0017] Further, the synthesizer includes a synthesizer housing, a working fluid water outlet, a working fluid water inlet, a plurality of synthesizer tubes and a plurality of working fluid water baffles;

[0018] The working fluid water outlet is installed on the side wall of the synthesizer shell near the top of the synthesizer shell, and the working fluid water inlet is installed on the side wall of the bottom end of the synthesizer shell near the synthesizer shell. A plurality of synthesizer tubes are vertically installed in the synthesizer shell, and a plurality of working fluid water baffles are horizontally installed in the synthesizer shell, and two adjacent working fluid water baffles are arranged in a staggered manner. The top of the synthesizer shell is fixedly connected to the bottom of the mixer shell, and the tops of the plurality of synthesizer tubes are communicated with the mixer shell. A working fluid heat exchange chamber is formed between the plurality of synthesizer tubes in the synthesizer shell.

[0019] Further, the secondary synthesizer includes a secondary synthesizer housing and a secondary synthesizer heating coil;

[0020] The secondary synthesizer heating coil is installed on the secondary synthesizer shell, the bottom ends of multiple synthesizer tubes are inserted in the secondary synthesizer shell, and the top end of the secondary synthesizer shell is installed on the bottom end of the synthesizer shell.

[0021] Further, the gas collector shell and the methanol-rich mixed gas outlet;

[0022] The gas collector shell is installed on the bottom end of the secondary synthesizer shell, and the outlet end of the gas collector shell is communicated with the methanol-rich mixed gas outlet.

[0023] Further, the sealing system includes a mixer-preheater sealing gasket, a preheater-blender sealing gasket, a blender-synthesizer sealing gasket, a synthesizer-secondary synthesizer sealing gasket and a secondary synthesizer-gas collector sealing gasket;

[0024] The mixer housing and the preheater housing are sealed by a mixer-preheater sealing gasket, the preheater housing and the blender housing are sealed by a preheater-blender sealing gasket, the blender housing and the synthesizer housing are sealed by a blender-synthesizer sealing gasket, the synthesizer housing and the secondary synthesizer housing are sealed by a synthesizer-secondary synthesizer sealing gasket, and the secondary synthesizer housing and the gas collector housing are sealed by a secondary synthesizer-gas collector sealing gasket.

[0025] Beneficial effects of the present invention:

[0026] 1. This application can accurately detect the concentration of mixed gases and effectively assist the control system in adjusting operating conditions.

[0027] 2. The preheater of the present application adopts electromagnetic heating to heat the mixed gas. The electromagnetic heating method has the advantage of fast heat transfer speed, can quickly adjust the temperature of the mixed gas to the optimal reaction range, and reduce the inertia of equipment operation.

[0028] 3. The mixer of the present application adopts a combination of punched holes and round holes, which can effectively improve the mixing effect of the mixed gas, ensure the uniform distribution of the components of the mixed gas, and improve the methanol synthesis efficiency.

[0029] 4. The synthesizer of the present application is internally arranged with a multi-stage temperature measuring device to monitor the temperature distribution of the mixed gas in the reactor in real time, and utilizes an intelligent control system to control the flow rate of the working fluid water, so as to accurately control the temperature in the reactor to the optimal reaction temperature of the methanol synthesis reaction.

[0030] 5. The present application designs a secondary synthesis gas and uses electromagnetic heating to assist the methanol synthesis reaction, heats the supercooled mixed gas at the synthesizer outlet, and synthesizes methanol again in the secondary synthesizer, which can further improve the methanol synthesis efficiency.

[0031] 6. The renewable energy provided by the present invention, which can be combined with carbon capture technology and is an adaptive reactor aimed at producing green methanol, is crucial. It is conducive to the large-scale consumption of green hydrogen prepared by renewable energy and biomass waste generated by agricultural planting, and can also effectively utilize the large amount of CO2 recovered by CCUS technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is the overall diagram of the methanol synthesis reactor.

[0033] Figure 2 This is a cross-sectional view of a methanol synthesis reactor.

[0034] Figure 3 This is the structural diagram of the mixer distributor.

[0035] Figure 4 This is a cross-sectional view of the main structure of the synthesizer.

[0036] Figure 5 This is the diagram of the synthesizer tube structure. DETAILED DESCRIPTION

[0037] Specific implementation method 1: Combination Figure 1-Figure 5 The embodiment of the present invention is described as an adaptive CO2 methanol synthesis reactor for renewable energy, which includes a gas mixer 1, a preheater 2, a blender 3, a synthesis system, a gas collector 6 and a sealing system 7;

[0038] The aerator 1, the preheater 2, the blender 3, the synthesis system and the gas collector 6 are vertically connected and fixed in a straight line direction, and the aerator 1 and the preheater 2, the preheater 2 and the blender 3, the blender 3 and the synthesis system, and the synthesis system and the gas collector 6 are sealed by flanges and a sealing system 7. The flange connection is fixed by fastening bolts.

[0039] Specific implementation method 2: Combination Figure 1 , Figure 2 , Figure 4 and Figure 5 This embodiment is described. This embodiment is an adaptive CO2-to-methanol reactor for renewable energy, and the synthesis system includes a synthesizer 4 and a secondary synthesizer 5;

[0040] The top of the synthesizer 4 is connected to the bottom of the blender 3 and sealed by the sealing system 7, and the bottom of the synthesizer 4 is connected to the top of the secondary synthesizer 5 and sealed by the sealing system 7. Other methods are the same as those in the first embodiment.

[0041] The mixer can mix green hydrogen, CO2 obtained from carbon supplementation and circulating reaction gas into a mixed gas. After the mixed gas is heated by the preheater to reach the reaction temperature of 200-300°C, it enters the synthesizer to react and produce a methanol-rich mixed gas. The mixed gas flows downstream into the secondary synthesizer equipped with a heating function to continue the methanol synthesis reaction. Finally, it is mixed in the gas collector and introduced into the methanol distillation equipment.

[0042] Specific implementation method three: Combination Figure 2This embodiment describes an adaptive CO2 methanol synthesis reactor for renewable energy, wherein the mixer 1 comprises a four-way pipe and a mixer housing 14, and the outlet end of the four-way pipe is connected to the inlet end of the mixer housing 14. Other methods are the same as those in the second embodiment.

[0043] The circulating gas inlet 11, the green hydrogen inlet 12 and the supplementary CO2 inlet 13 are all equipped with high-precision gas composition detection devices, which can be remotely transmitted to the control center to obtain the composition of the mixed gas in the mixer in real time.

[0044] Specific implementation method four: Combination Figure 2 This embodiment is described. In this embodiment, a self-adaptive CO2-to-methanol reactor for renewable energy is described. The preheater 2 includes a preheater shell 21, a preheater heating coil 22, and a plurality of gas mixing tubes 23.

[0045] The preheater heating coil 22 is arranged on the preheater housing 21, and a plurality of gas mixing tubes 23 are arranged in parallel and installed in the preheater housing 21. The top end of the preheater housing 21 is fixedly connected to the outlet end of the mixer housing 14, and the top ends of the plurality of gas mixing tubes 23 are connected to the mixer housing 14. Other methods are the same as those in the third embodiment.

[0046] A multi-stage temperature measuring device is arranged on the outer wall of the gas-mixing tube 23 to monitor the temperature of the mixed gas in real time. An electromagnetic heating preheater heating coil 22 is arranged between the outer side of the gas-mixing tube 23 and the inner surface of the preheater shell 21 to preheat the mixed gas in the gas-mixing tube by electromagnetic heating. The operating power of the heating coil is adjusted in real time by the control system according to the temperature of the mixed gas to ensure that the temperature of the mixed gas is always constant.

[0047] Specific implementation method five: Combination Figure 1-Figure 3 To explain this embodiment, the embodiment of the invention is a self-adaptive CO2 methanol synthesis reactor for renewable energy, wherein the blender 3 includes a blender housing 31 and a blender distributor 32;

[0048] The blender distributor 32 is installed on the blender housing 31, the top of the blender housing 31 is fixedly connected to the bottom of the preheater housing 21, and the inlet of the blender distributor 32 is connected to the outlets of the plurality of gas mixing tubes 23. Other methods are the same as those of the fourth embodiment.

[0049] Specific implementation method six: Combination Figure 2-Figure 3 To illustrate this embodiment, the embodiment of the invention is an adaptive CO2 methanol synthesis reactor for renewable energy, wherein the blender distributor 32 comprises a connecting tube 321, a distributor 322, a distributor punching hole 323 and a distributor bottom circular hole 324;

[0050] The inlet of the distributor 322 is installed on the connecting tube 321. The distributor 322 is processed with a plurality of distributor punching holes 323 in the radial direction, and the bottom end of the distributor 322 is processed with a plurality of distributor bottom circular holes 324. Other methods are the same as those in the fifth embodiment.

[0051] The connecting tube 321 is fixed to the inner wall of the mixer housing 31 by fastening bolts, the side wall of the distributor 322 is punched with holes, and the bottom plate of the distributor 322 is opened with centrally symmetrical small circular holes to ensure that the mixed gas flow is evenly distributed on the side wall and the bottom plate.

[0052] Specific implementation method seven: Combination Figure 1-Figure 5 The embodiment of the present invention is described as an adaptive CO2 methanol synthesis reactor for renewable energy, wherein the synthesizer 4 comprises a synthesizer housing 41, a working fluid water outlet 42, a working fluid water inlet 46, a plurality of synthesizer tubes 44 and a plurality of working fluid water baffles 43;

[0053] The working fluid water outlet 42 is installed on the side wall of the synthesizer shell 41 near the top of the synthesizer shell 41, and the working fluid water inlet 46 is installed on the side wall of the bottom end of the synthesizer shell 41 near the synthesizer shell 41. A plurality of synthesizer tubes 44 are vertically installed in the synthesizer shell 41, and a plurality of working fluid water baffles 43 are horizontally installed in the synthesizer shell 41, and two adjacent working fluid water baffles 43 are arranged in an alternating manner. The top of the synthesizer shell 41 is fixedly connected to the bottom end of the mixer shell 31, and the tops of the plurality of synthesizer tubes 44 are connected to the mixer shell 31. A working fluid heat exchange chamber 45 is formed between the plurality of synthesizer tubes 44 in the synthesizer shell 41.

[0054] A plurality of partition tube holes 431 are processed on the working medium water partition 43, and a plurality of synthesizer tubes 44 are inserted into the partition tube holes 431. Other methods are the same as those of the fifth or sixth specific implementation.

[0055] Catalyst material is attached to the inner wall of each tube of the synthesizer tube array 44, and a tube perforated plate 411 is welded on the upper part of the synthesizer tube array 44. The tube perforated plate 411 is placed on the synthesizer housing 41, and the two tubes are sealed with a porous gasket. The working medium water baffles 43 are staggered and welded on the inner wall of the synthesizer housing 41, and the partition area of ​​the working medium water baffles 43 is 60-80%. The heat released by the mixed gas in the synthesizer tube to synthesize methanol is taken out by the working medium water, which can be used as the factory feed water.

[0056] The tube holes 412 of the tube perforated plate are arranged in a centrally symmetrical manner, and the opening positions are consistent with the tube holes 431 of the partition plate, which can ensure that the synthesizer tubes pass through and are exposed in the interior of the synthesizer housing 41.

[0057] Specific implementation method eight: Combination Figure 1-Figure 2To explain this embodiment, the embodiment described in this embodiment is an adaptive CO2-to-methanol reactor for renewable energy, wherein the secondary synthesizer 5 includes a secondary synthesizer housing 51 and a secondary synthesizer heating coil 52;

[0058] The secondary synthesizer heating coil 52 is installed on the secondary synthesizer housing 51, the bottom ends of the multiple synthesizer tubes 44 are inserted into the secondary synthesizer housing 51, and the top end of the secondary synthesizer housing 51 is installed on the bottom end of the synthesizer housing 41. Other methods are the same as the specific embodiment seven.

[0059] An electromagnetic heating type secondary synthesizer heating coil 52 is arranged between the outer side of the synthesizer tube 44 and the inner wall of the secondary synthesizer housing 51, and provides heat for the mixed gas reaction in the synthesizer tube by electromagnetic heating. The operating power of the heating coil is adjusted in real time by the control system according to the mixed gas temperature to ensure that the mixed gas temperature always meets the optimal temperature for methanol synthesis.

[0060] Specific implementation method nine: Combination Figure 1-Figure 2 This embodiment is described. This embodiment is an adaptive CO2-to-methanol reactor for renewable energy, a gas collector shell 61 and a methanol-rich mixed gas outlet 62;

[0061] The gas collector housing 61 is installed on the bottom end of the secondary synthesizer housing 51, and the outlet end of the gas collector housing 61 is connected to the methanol-rich mixed gas outlet 62. Other methods are the same as those in the eighth embodiment.

[0062] Specific implementation method ten: Combination Figure 1-Figure 2 To explain this embodiment, the adaptive CO2 methanol synthesis reactor for renewable energy described in this embodiment, the sealing system 7 includes a mixer-preheater sealing gasket 71, a preheater-blender sealing gasket 72, a blender-synthesizer sealing gasket 73, a synthesizer-secondary synthesizer sealing gasket 74 and a secondary synthesizer-gas collector sealing gasket 75;

[0063] The aerator housing 14 and the preheater housing 21 are sealed by a mixer-preheater sealing gasket 71, the preheater housing 21 and the blender housing 31 are sealed by a preheater-blender sealing gasket 72, the blender housing 31 and the synthesizer housing 41 are sealed by a blender-synthesizer sealing gasket 73, the synthesizer housing 41 and the secondary synthesizer housing 51 are sealed by a synthesizer-secondary synthesizer sealing gasket 74, and the secondary synthesizer housing 51 and the gas collector housing 61 are sealed by a secondary synthesizer-gas collector sealing gasket 75. Other methods are the same as those in the ninth embodiment.

[0064] The preheater-blender sealing gasket 72 and the blender-synthesizer sealing gasket 73 are octagonal metal ring gaskets embedded in the flange grooves. The synthesizer-secondary synthesizer sealing gasket 74 and the secondary synthesizer-gas collector sealing gasket 75 are a combination of an octagonal metal ring gasket and a porous gasket. The porous gasket is used to prevent the mixed gas from moving in each system. The flanges of each part are all made of tongue-and-groove flanges with trapezoidal ring grooves. Stainless steel octagonal metal ring gaskets are placed in the grooves. The flanges are connected with fastening bolts.

[0065] The reaction gas after the reaction is introduced from the circulating gas inlet 11 on the mixer 1 after methanol distillation, cooling, dust removal and other processes. The green hydrogen prepared by electrolysis of water is introduced from the green hydrogen inlet 12. The CO2 collected by CO2 collection technology is introduced from the CO2 collection inlet 13 after dust removal. Before the three gases are introduced into the mixer 1, their gas composition and concentration are monitored in real time by their respective gas composition analyzers, and then transmitted to the control center to calculate the mixed gas composition and proportion in real time. The three gas composition analyzers are arranged before the mixer 1 because the mixed gas in the mixer 1 is not completely uniform. If a gas composition analyzer is arranged in the mixer 1, the detection result will have a large deviation.

[0066] The mixed gas is first preliminarily blended in the mixer 1, and then enters the multiple groups of centrally symmetrical gas mixing tubes 23 located inside the preheater 2. The mixed gas is preheated to a specified temperature that satisfies methanol synthesis under the heating of the preheater heating coil 22 on the outside of the gas mixing tube 23. The determination of the specified temperature comes from the optimal temperature calculated by the control center after calculating the proportion of the mixed gas components in combination with the methanol synthesis mechanism. Since the preheater heating coil 22 adopts electromagnetic heating, the gas mixing tube 23 can be quickly heated to a predetermined temperature. Compared with traditional resistive heaters, electromagnetic heaters have the advantages of fast heating speed and short response time, and can more effectively convert heating power according to changes in gas composition. It has a high adaptability to the fluctuating hydrogen sources produced by wind power and photovoltaics, and CO2 flow changes caused by boiler load adjustment.

[0067] After being heated by the preheater 2, the mixed gas enters the blender 3. Since the blender distributor 32 structure is configured inside the blender 3, the punching hole 323 of the distributor on the blender distributor 32 is opened upward, so the overall airflow is ejected along the axial direction and with a horizontal upward component, and the bottom circular hole 324 of the distributor can ensure a certain radial airflow, thereby ensuring that all airflows are evenly distributed in the overall direction. Since the blender distributor 32 adopts a porous form and has a large flow resistance, the various components of the mixed gas can be fully mixed, and finally the mixed gas is homogenized and uniformly flowed within a short distance.

[0068] The heated, uniformly mixed mixed gas enters the synthesizer 4 through the synthesizer tube 44. Since the CO2 methanol synthesis reaction is heat-releasing as a whole, working water is used for heat exchange to ensure that the temperature in the synthesizer tube 44 is within a suitable range. The inner wall of the synthesizer tube 44 is attached with a high-efficiency catalyst to effectively reduce the temperature and pressure required for the reaction. The working water is introduced from the working water inlet 46 located on the lower side wall of the synthesizer shell 41. Since a plurality of groups of working water baffles 43 are arranged radially in a staggered manner in the working heat exchange chamber 45 formed by the synthesizer shell 41 and the synthesizer tube 44, the working water flows upward in a serpentine shape inside the working heat exchange chamber 45 and flows out from the working water outlet 42 located on the upper side wall of the synthesizer shell 41. The heated working water can be used as process water in the plant area, or as feed water for heating the plant area and other purposes. The synthesizer tube 44 is equipped with a multi-stage temperature monitoring device to monitor the temperature of the mixed gas in the synthesizer tube 44 in real time. The temperature of the mixed gas in the synthesis tube array 44 is automatically controlled by a program set by the control center. The temperature of the mixed gas is controlled by changing the working medium water flow rate, thereby ensuring that the mixed gas with different components is always at the optimal reaction temperature.

[0069] The synthesis tube 44 passes through the synthesizer 4 and enters the secondary synthesizer 5. After the reaction, the mixed gas enters the lower end of the synthesis tube 44 located in the secondary synthesizer 5. Since the working water temperature near the secondary synthesizer 5 is relatively low, the mixed gas at the inlet of the secondary synthesizer 5 will be reduced and deviate from the optimal methanol synthesis temperature range. Therefore, in the present invention, a secondary synthesizer heating coil 52 is arranged between the inner wall of the secondary synthesizer housing 51 and the synthesis tube 44 to heat the mixed gas in the synthesis tube 44 again to reach the optimal reaction temperature and improve the single-pass efficiency of methanol synthesis.

[0070] The methanol-rich mixed gas after the reaction is completed enters the gas collector 6 through the outlet of the synthesis tube 44, and is sent to the methanol refining equipment for purification through the methanol-rich mixed gas outlet 62.

[0071] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. An adaptive CO2 methanol synthesis reactor for renewable energy, characterized in that: It includes a gas mixer (1), a preheater (2), a blender (3), a synthesis system, a gas collector (6) and a sealing system (7); The aerator (1), the preheater (2), the blender (3), the synthesis system and the gas collector (6) are vertically connected and fixed in a straight line direction, and the aerator (1) and the preheater (2), the preheater (2) and the blender (3), the blender (3) and the synthesis system, and the synthesis system and the gas collector (6) are sealed by flanges and a sealing system (7).

2. The adaptive CO2 methanol synthesis reactor of renewable energy according to claim 1, characterized in that: The synthesis system comprises a synthesizer (4) and a secondary synthesizer (5); The top end of the synthesizer (4) is connected to the bottom end of the blender (3) and is sealed by a sealing system (7), and the bottom end of the synthesizer (4) is connected to the top end of the secondary synthesizer (5) and is sealed by a sealing system (7).

3. The adaptive CO2-to-methanol reactor of renewable energy according to claim 2, characterized in that: The aerator (1) comprises a four-way pipe and a mixer housing (14), wherein the outlet end of the four-way pipe is connected to the inlet end of the mixer housing (14).

4. The adaptive CO2 methanol synthesis reactor of renewable energy according to claim 3, characterized in that: The preheater (2) comprises a preheater housing (21), a preheater heating coil (22) and a plurality of gas mixing tubes (23); The preheater heating coil (22) is arranged on the preheater shell (21), and a plurality of gas mixing tubes (23) are arranged in parallel and installed in the preheater shell (21). The top end of the preheater shell (21) is fixedly connected to the outlet end of the mixer shell (14), and the top ends of the plurality of gas mixing tubes (23) are in communication with the mixer shell (14).

5. The adaptive CO2-to-methanol reactor of renewable energy according to claim 4, characterized in that: The blender (3) comprises a blender housing (31) and a blender distributor (32); The blender distributor (32) is installed on the blender housing (31), the top end of the blender housing (31) is fixedly connected to the bottom end of the preheater housing (21), and the inlet of the blender distributor (32) is connected to the outlets of the plurality of gas mixing tubes (23).

6. The adaptive CO2-to-methanol reactor of renewable energy according to claim 5, characterized in that: The mixer distributor (32) comprises a connecting tube (321), a distributor (322), a distributor punching hole (323) and a distributor bottom circular hole (324); The inlet of the distributor (322) is installed on the connecting tube (321), a plurality of distributor punching holes (323) are processed radially on the distributor (322), and a plurality of distributor bottom circular holes (324) are processed at the bottom end of the distributor (322).

7. The adaptive CO2-to-methanol reactor of renewable energy according to claim 5 or 6, characterized in that: The synthesizer (4) comprises a synthesizer housing (41), a working fluid water outlet (42), a working fluid water inlet (46), a plurality of synthesizer tubes (44) and a plurality of working fluid water baffles (43); The working fluid water outlet (42) is installed on the side wall of the synthesizer shell (41) near the top of the synthesizer shell (41), and the working fluid water inlet (46) is installed on the side wall of the bottom end of the synthesizer shell (41) near the synthesizer shell (41). A plurality of synthesizer tubes (44) are vertically installed in the synthesizer shell (41), and a plurality of working fluid water baffles (43) are horizontally installed in the synthesizer shell (41), and two adjacent working fluid water baffles (43) are arranged in a staggered manner. The top of the synthesizer shell (41) is fixedly connected to the bottom of the blender shell (31), and the tops of the plurality of synthesizer tubes (44) are connected to the blender shell (31). A working fluid heat exchange chamber (45) is formed between the plurality of synthesizer tubes (44) in the synthesizer shell (41).

8. The adaptive CO2-to-methanol reactor of renewable energy according to claim 7, characterized in that: The secondary synthesizer (5) comprises a secondary synthesizer housing (51) and a secondary synthesizer heating coil (52); The secondary synthesizer heating coil (52) is installed on the secondary synthesizer housing (51), the bottom ends of a plurality of synthesizer tubes (44) are inserted into the secondary synthesizer housing (51), and the top end of the secondary synthesizer housing (51) is installed on the bottom end of the synthesizer housing (41).

9. The adaptive CO2-to-methanol reactor of renewable energy according to claim 8, characterized in that: A gas collector shell (61) and a methanol-rich mixed gas outlet (62); The gas collector shell (61) is installed on the bottom end of the secondary synthesizer shell (51), and the outlet end of the gas collector shell (61) is connected to the methanol-rich mixed gas outlet (62).

10. The adaptive CO2-to-methanol reactor of renewable energy according to claim 9, characterized in that: The sealing system (7) comprises a gas mixer-preheater sealing gasket (71), a preheater-blender sealing gasket (72), a blender-synthesizer sealing gasket (73), a synthesizer-secondary synthesizer sealing gasket (74) and a secondary synthesizer-gas collector sealing gasket (75); The aerator housing (14) and the preheater housing (21) are sealed by a mixer-preheater sealing gasket (71), the preheater housing (21) and the blender housing (31) are sealed by a preheater-blender sealing gasket (72), the blender housing (31) and the synthesizer housing (41) are sealed by a blender-synthesizer sealing gasket (73), the synthesizer housing (41) and the secondary synthesizer housing (51) are sealed by a synthesizer-secondary synthesizer sealing gasket (74), and the secondary synthesizer housing (51) and the gas collector housing (61) are sealed by a secondary synthesizer-gas collector sealing gasket (75).

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