System for preparing sustainable aviation fuel through biomass gasification coupling green hydrogen and energy recovery

Abstract

The utility model provides a system for producing sustainable aviation fuel by biomass gasification coupling green hydrogen and energy recovery, which comprises a gasification section, a gasification section, a waste heat recovery device and a gas supply section, the gasification section comprises a gasification furnace and a waste heat recovery device, the gasification furnace is used for combusting biomass to output crude synthesis gas, and the waste heat recovery device is connected with an outlet of the gasification furnace to receive the crude synthesis gas; the methanol synthesis section is communicated with a crude synthesis gas outlet of the waste heat recovery device; the methanol conversion section is communicated with an outlet of the methanol synthesis section and is used for receiving methanol and performing conversion and oligomerization to obtain long-chain olefin; the hydrogen production section comprises a hydrogen production device, a renewable power generation device, an energy recovery device and a hydrogen storage device, the hydrogen production device produces hydrogen through water electrolysis, and the hydrogen storage device is connected with an outlet of the hydrogen production device to store hydrogen; the hydrogenation section is communicated with the methanol conversion treatment section and the hydrogen storage device at the same time to receive the long-chain olefin and the hydrogen, and the long-chain olefin and the hydrogen react to obtain the sustainable aviation fuel.

Description

Technical Field

[0001] The utility model relates to the technical field of energy conversion, and in particular to a system for producing sustainable aviation fuel by coupling biomass gasification with green hydrogen and energy recovery. Background Art

[0002] Sustainable Aviation Fuel (SAF) generally refers to a kerosene substitute produced through chemical reactions using a variety of sustainably sourced raw materials (biomass or synthetic). SAF offers the advantages of diverse raw material sources, significantly reduced carbon emissions throughout its lifecycle, significantly reduced soot, nitrogen oxides, and sulfur compounds, and carbon dioxide produced during combustion that can be neutralized through raw material production. Furthermore, its use does not require a fundamental redesign of current engine / aircraft structures. Therefore, SAF is crucial for the aviation industry to achieve net-zero carbon emissions and is a viable option for sustainable long-distance flight.

[0003] Currently, when producing hydrocarbons within the aviation fuel sector, particularly sustainable aviation fuel (SAF), aromatics are not permitted in the olefin feed stream. To produce aviation fuel from methane, biomass-to-methanol is typically used, followed by methanol-to-olefins, followed by olefin oligomerization and hydrogenation of long-chain olefins to produce SAF.

[0004] However, in the above reaction, a large amount of energy is wasted in the preparation process of methanol, resulting in high energy consumption. Utility Model Content

[0005] The purpose of the utility model is to provide a biomass gasification coupled green hydrogen and energy recovery system for producing sustainable aviation fuel with low energy consumption, so as to solve the problems in the prior art.

[0006] To solve the above technical problems, the present invention provides a system for producing sustainable aviation fuel by coupling biomass gasification with green hydrogen and energy recovery, comprising:

[0007] The gasification section includes a gasifier and a waste heat recovery device. The gasifier is used to burn biomass to output raw synthesis gas, and the waste heat recovery device is connected to the outlet of the gasifier to receive the raw synthesis gas.

[0008] The methanol synthesis section is connected to the crude synthesis gas outlet of the waste heat recovery device and is used to purify the crude synthesis gas and then synthesize methanol;

[0009] The methanol conversion section is connected to the outlet of the methanol synthesis section and is used to receive methanol and convert and oligomerize it to obtain long-chain olefins;

[0010] A hydrogen production section includes a hydrogen production device, a renewable power generation device, an energy recovery device, and a hydrogen storage device. The hydrogen production device produces hydrogen by electrolyzing water. The renewable power generation device supplies power to the hydrogen production device. The energy recovery device is connected to a waste heat recovery device and is used to recover heat from the crude synthesis gas and convert it into electrical energy. The energy recovery device is connected to the hydrogen production device to supply power to the hydrogen production device. The hydrogen storage device is connected to the outlet of the hydrogen production device to store hydrogen.

[0011] The hydrogenation section is connected to the methanol conversion processing section and the hydrogen storage device to receive long-chain olefins and hydrogen, and provide long-chain olefins and hydrogen for reaction to obtain sustainable aviation fuel.

[0012] In one embodiment, the energy recovery device includes a steam turbine generator set connected to the steam outlet of the waste heat recovery device, and the electrical output end of the steam turbine generator set is connected to the hydrogen production device.

[0013] In one embodiment, the methanol synthesis section includes a purification device and a methanol synthesis tower located downstream of the purification device, and the purification device is connected to the crude synthesis gas outlet of the waste heat recovery device.

[0014] In one embodiment, the purge gas outlet of the methanol synthesis tower is connected to a hydrogen extraction device, which receives the purge gas in the methanol synthesis tower and performs hydrogen extraction processing, and the outlet of the hydrogen extraction device is connected to a hydrogen storage device.

[0015] In one embodiment, the hydrogen extraction device extracts hydrogen by pressure swing adsorption or membrane separation.

[0016] In one embodiment, the methanol synthesis tower is provided with a hydrogen replenishing port, which is connected to a hydrogen storage device for receiving hydrogen supplied by the hydrogen storage device.

[0017] In one embodiment, the methanol synthesis section includes a methanol distillation tower connected to the outlet of a methanol synthesis tower, and the outlet of the methanol distillation tower is connected to the methanol conversion section.

[0018] In one embodiment, the hydrogen storage device is a spherical tank.

[0019] In one embodiment, the methanol conversion section includes a methanol conversion reactor and an oligomerization reactor. The methanol conversion reactor is arranged downstream of the methanol synthesis tower, and is used to receive methanol and react to obtain short-chain olefins, wherein the carbon atoms in the short-chain olefins are 3 to 8. The oligomerization reactor is arranged downstream of the methanol conversion reactor, and is used to receive the short-chain olefins and perform oligomerization reaction to obtain the long-chain olefins.

[0020] In one embodiment, the renewable electricity generation device includes at least one of a hydroelectric power generation device, a biomass power generation device, a wind power generation device, and a photovoltaic power generation device;

[0021] The hydroelectric power generation equipment, the biomass power generation equipment, the wind power generation equipment and the photovoltaic power generation equipment are arranged individually or in parallel.

[0022] It can be seen from the above technical solution that the advantages and positive effects of the utility model are:

[0023] The present invention's biomass gasification-coupled green hydrogen and energy recovery system for producing sustainable aviation fuel utilizes waste heat generated during methanol production in a methanol production unit through waste heat recovery and energy recovery devices, converting the waste heat into electricity. This electricity can power the hydrogen production equipment, increasing hydrogen production and reducing energy consumption. This system, coupled with green hydrogen and energy recovery, reduces energy consumption through the recycling device while ensuring a sufficient supply of hydrogen, and thus production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of one embodiment of the system for producing sustainable aviation fuel by coupling biomass gasification with green hydrogen and energy recovery in the present invention.

[0025] The following are the descriptions of the reference numerals:

[0026] 11. Gasifier; 12. Waste heat recovery device; 13. Separator; 14. Dust collector; 15. Water scrubber; 16. Methanol synthesis tower; 17. Booster; 18. Desulfurization tank; 19. Decarbonization tower; 20. Pressurizer; 21. Methanol distillation tower; 22. Methanol conversion reactor; 23. Oligomerization reactor; 24. Hydrogen production device; 25. Renewable power generation device; 26. Hydrogenation reaction device; 27. Steam turbine generator; 28. Hydrogen storage device; 30. Hydrogen extraction device. DETAILED DESCRIPTION

[0027] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0028] Thus, a feature indicated in this specification is intended to illustrate one of the features of one embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other, not explicitly described, combinations. Thus, unless otherwise noted, the described combinations are not intended to be limiting.

[0029] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of various components of the present invention are not absolute but relative. These descriptions are applicable when these components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, these directional indications will also change accordingly.

[0030] Figure 1 A schematic diagram of one embodiment of a system for producing sustainable aviation fuel by coupling biomass gasification with green hydrogen and energy recovery is shown. Figure 1 The biomass gasification coupled with green hydrogen and energy recovery to produce sustainable aviation fuel system (hereinafter referred to as the system) includes a gasification section, a methanol synthesis section, a methanol conversion section, a hydrogen production section and a hydrogenation section.

[0031] The gasification section includes a gasifier 11 and a waste heat recovery device 12. The gasifier 11 is used to burn biomass and output crude syngas. Specifically, biomass enters the gasifier 11 and reacts to produce crude syngas. Specifically, biomass includes forestry and agricultural waste and byproducts, such as straw, sawdust, rice husks, branches, and waste wood. The biomass gasification reaction produces crude syngas. The main components of crude syngas are hydrogen (H2), carbon monoxide (CO), and carbon dioxide (CO2), all of which are raw materials for synthesizing methanol.

[0032] The gasifier 11 may be a moving bed gasifier or a fluidized bed gasifier.

[0033] The waste heat recovery device 12 is connected to the outlet of the gasifier 11 to receive the raw synthesis gas and is used to recover the heat carried by the raw synthesis gas.

[0034] The gasification section also includes a separator 13 positioned between the gasifier 11 and the waste heat recovery unit 12. Separator 13 is located downstream of the gasifier 11 and is used to separate gas and solids. Separator 13 communicates with the gas outlet of the gasifier 11. Solids separated by separator 13 are returned to the gasifier 11 for further separation. The bottom outlet of separator 13 is used to discharge solids and is connected to a reflux port on the side of the lower portion of the gasifier 11.

[0035] The methanol synthesis section is connected to the crude syngas outlet of the waste heat recovery unit 12 and is used to purify the crude syngas before synthesizing methanol. Specifically, the methanol synthesis section includes a purification unit and a methanol synthesis tower 16 located downstream of the purification unit. The purification unit is connected to the crude syngas outlet of the waste heat recovery unit 12 and is used to receive and purify the crude syngas.

[0036] Specifically, the purification device includes a dust collector 14 and a water washing tower 15 which are arranged in sequence.

[0037] The dust collector 14 receives the raw syngas after heat recovery from the waste heat recovery device 12 and is used to remove dust from the raw syngas. The top of the dust collector 14 is a gas outlet, and the bottom is a dust outlet.

[0038] The water scrubber 15 is used to remove tar and ammonia. Specifically, it dissolves the tar and ammonia contained in the gas in water, thereby achieving the purpose of removal. The inlet of the water scrubber 15 is located at the bottom and is connected to the output port at the top of the dust collector 14. The outlet of the water scrubber 15 is located at the top and leads to the methanol synthesis tower 16. The flow path between the water scrubber 15 and the methanol synthesis tower 16 can also be sequentially provided with a supercharger 17, a desulfurization tank 18, a decarbonization tower 19, and a pressurizer 20, which will be described below.

[0039] The methanol synthesis tower 16 is used for reacting to produce methanol. The reaction in the methanol synthesis tower 16 is mainly hydrogen and carbon monoxide, and hydrogen and carbon dioxide react to produce methanol.

[0040] The reaction formula is as follows:

[0041] CO+2H2→CH3OH.

[0042] CO2+3H2→CH3OH+H2O.

[0043] The methanol synthesis section preferably includes a methanol distillation tower 21 connected to the outlet of the methanol synthesis tower 16. The methanol distillation tower 21 receives and distills the crude methanol synthesized by the methanol synthesis tower 16. The outlet of the methanol distillation tower 21 is connected to the methanol conversion section.

[0044] The booster 17 is used to increase the pressure of the gas entering the downstream. The desulfurization tank 18 is used to remove sulfur compounds including hydrogen sulfide. Specifically, the desulfurization tank 18 is arranged downstream of the booster 17.

[0045] The methanol synthesis section also includes a decarbonization tower 19, located upstream of the methanol synthesis tower 16. This tower is used to remove carbon dioxide, reducing its content or even completely eliminating it to ensure the required hydrogen production. Specifically, it is located downstream of the desulfurization tank 18.

[0046] A compressor 20 is also provided between the decarbonization tower 19 and the methanol synthesis tower 16 for pressurizing the gas entering the methanol synthesis tower 16 .

[0047] The methanol conversion section is connected to the outlet of the methanol synthesis section, and is used to receive methanol and convert and oligomerize it to obtain long-chain olefins.

[0048] Specifically, the methanol conversion section includes a methanol conversion reactor 22 and an oligomerization reactor 23. The methanol conversion reactor 22 is located downstream of the methanol synthesis tower 16 and is used to receive methanol and react to produce short-chain olefins. The short-chain olefins have 3 to 8 carbon atoms.

[0049] The oligomerization reactor 23 is disposed downstream of the methanol conversion reactor 22 and is used to receive short-chain olefins and perform oligomerization reaction to obtain long-chain olefins.

[0050] The hydrogen production section includes a hydrogen production unit 24, a renewable electricity generation unit 25, an energy recovery unit, and a hydrogen storage unit 28. The hydrogen production unit 24 produces hydrogen through water electrolysis, and the renewable electricity generation unit 25 supplies power to the hydrogen production unit 24. The use of the renewable electricity generation unit 25 reduces the energy consumption of the entire biomass gasification-coupled green hydrogen and energy recovery system for producing sustainable aviation fuel.

[0051] The renewable power generation device 25 includes at least one of a hydroelectric power generation device, a biomass power generation device, a wind power generation device, and a photovoltaic power generation device. The hydroelectric power generation device, the biomass power generation device, the wind power generation device, and the photovoltaic power generation device are arranged individually or in parallel.

[0052] That is, the renewable power generation device 25 may be composed solely of hydropower generation equipment, solely of biomass power generation equipment, solely of wind power generation equipment, or solely of photovoltaic power generation equipment. Alternatively, the renewable power generation device 25 may be composed of any two of wind power generation equipment and photovoltaic power generation equipment, any three of hydropower generation equipment, wind power generation equipment, and photovoltaic power generation equipment, or any four of hydropower generation equipment, biomass power generation equipment, wind power generation equipment, and photovoltaic power generation equipment, depending on actual needs.

[0053] Hydropower refers to the use of water to generate electricity, that is, the use of water potential energy to convert into electrical energy.

[0054] Biomass power generation refers to thermal power generation technology that uses biomass and the solid, liquid and gas converted from it as fuel.

[0055] Wind power refers to the use of wind power to generate electricity, which converts the kinetic energy of wind into electrical energy.

[0056] Photovoltaic power generation refers to solar photovoltaic power generation or solar thermal power generation. Photovoltaic power generation uses the photoelectric effect to directly convert sunlight energy into electrical energy; solar thermal power generation refers to converting solar energy into thermal energy and then converting thermal energy into electrical energy.

[0057] Using this renewable electricity to provide power reduces the energy consumption of the entire biomass gasification coupled with green hydrogen and energy recovery sustainable aviation fuel system. Furthermore, the use of renewable electricity makes the entire biomass gasification coupled with green hydrogen and energy recovery sustainable aviation fuel system more environmentally friendly.

[0058] The energy recovery device is in communication with the waste heat recovery device 12 and is used to recover heat from the raw synthesis gas and convert it into electrical energy. The energy recovery device is connected to the hydrogen production device 24 to supply power to the hydrogen production device 24.

[0059] Specifically, the energy recovery device includes a steam turbine generator set 27 connected to the steam outlet of the waste heat recovery device 12. The electrical output end of the steam turbine generator set 27 is connected to the hydrogen production device 24.

[0060] Generally speaking, renewable electricity has unstable characteristics such as intermittency and volatility. For example, hydropower has flood season and dry season. Wind power and photovoltaic output not only change every hour, but also have large differences every month, showing seasonal changes. Changes in renewable power output will lead to changes in the amount of hydrogen produced by water electrolysis.

[0061] The hydrogen storage device 28 is connected to the outlet of the hydrogen production device 24 to store hydrogen. Specifically, the hydrogen storage device 28 can be a spherical tank.

[0062] That is, when there is excess renewable electricity, the electricity is used to electrolyze water to produce hydrogen, and the excess hydrogen is stored for future use. When there is insufficient renewable electricity, the hydrogen stored in the hydrogen storage device 28 is released to supply the hydrogenation stage.

[0063] Methanol synthesis column 16 is equipped with a hydrogen replenishment port, which is connected to hydrogen storage device 28 and is used to receive hydrogen supplied by hydrogen storage device 28. Hydrogen in hydrogen storage device 28 can be transported to methanol synthesis column 16, increasing the hydrogen content within methanol synthesis column 16, thereby achieving an appropriate hydrogen-to-carbon ratio and increasing methanol production. In other words, hydrogen storage device 28 can supply hydrogen to the hydrogenation section and methanol synthesis section simultaneously or separately.

[0064] The hydrogenation section is connected to the methanol conversion treatment section and the hydrogen storage device 28 to receive long-chain olefins and hydrogen, and allows the long-chain olefins and hydrogen to react to obtain sustainable aviation fuel.

[0065] The hydrogenation section includes a hydrogenation reaction device 26 . The hydrogenation reaction device 26 is connected to the methanol conversion treatment section and the hydrogen storage device 28 .

[0066] That is, the long-chain olefins output from the methanol conversion treatment section enter the hydrogenation reaction device 26, and the hydrogen output from the hydrogen production device 24 enters the hydrogenation reaction device 26. The long-chain olefins and hydrogen react in the hydrogenation reaction device 26 to obtain sustainable aviation fuel.

[0067] The present application utilizes a creative design to fully utilize the hydrogen and / or waste heat generated during the methanol preparation process.

[0068] Specifically, it can be connected to the methanol synthesis section to receive hydrogen generated during the methanol preparation process and provide it to the hydrogenation reaction device 26 and / or receive waste heat and convert it into electrical energy and provide it to the hydrogen production device 24.

[0069] Specifically, the hydrogen produced during the methanol production process is separated and extracted from the purge gas, which is then stored and delivered to the hydrogenation reactor 26 as needed. This increases SAF production, conserves raw materials, and reduces energy consumption. Heat generated during the methanol production process is recovered and converted into electricity, increasing the production capacity of the hydrogen production unit 24 and reducing energy consumption. This electricity can also supplement renewable electricity when it is insufficient.

[0070] It should be noted that the utilization of hydrogen and heat in the methanol production process can be either one or both. In this application, hydrogen and heat are recovered and utilized simultaneously.

[0071] In one embodiment, a waste heat recovery device 12, located downstream of the gasifier 11, absorbs heat from the crude syngas output by the gasifier 11 and converts it into electricity via a steam turbine generator set 27, thereby providing power to the hydrogen production unit 24. This not only increases the production capacity of the hydrogen production unit 24 but also compensates for hydrogen shortages caused by insufficient renewable electricity. Due to the renewable nature of biomass gasification, the electricity used by the hydrogen production unit 24 to produce hydrogen through water electrolysis is also renewable.

[0072] The crude syngas output by the gasifier 11 has a temperature exceeding 1000°C. After passing through the waste heat recovery device 12, its temperature is reduced to 200-300°C. The boiler water absorbs heat and converts it into steam, which then enters the steam turbine generator set 27. The steam turbine generator set 27 comprises a steam turbine and a generator. The steam drives the turbine's impeller, transferring mechanical energy to the generator, converting the steam's thermal energy into electrical energy.

[0073] In one embodiment, the purge gas generated during the methanol production process can be processed by hydrogen extraction. Specifically, the purge gas outlet of the methanol synthesis tower 16 is connected to a hydrogen extraction device 30. The hydrogen extraction device 30 receives the purge gas from the methanol synthesis tower 16 and extracts hydrogen from it. The outlet of the hydrogen extraction device 30 is connected to the hydrogen storage device 28.

[0074] Specifically, the hydrogen extraction device 30 extracts hydrogen by pressure swing adsorption or membrane separation.

[0075] When there is excess renewable power, the hydrogen storage device 28 can use all the electricity to produce hydrogen by electrolyzing water in the hydrogen production device 24, and then store the excess hydrogen in the hydrogen storage device 28. When there is insufficient renewable power, the stored hydrogen is released to supply the hydrogenation reaction device 26.

[0076] In this embodiment, the hydrogen production device 24 and the hydrogen extraction device 30 are connected to the hydrogen storage device 28 to provide hydrogen to the hydrogenation reaction device 26.

[0077] Therefore, the biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel production system in this application provides electricity to the hydrogen production device 24 through the waste heat recovery device 12 and the steam turbine generator set 27, recovers hydrogen through the hydrogen extraction device 30, stores hydrogen through the hydrogen storage device 28 and uses it to provide hydrogen to the hydrogenation section and the methanol synthesis section, thereby reducing the energy consumption of the entire biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel production system.

[0078] At the same time, the sources of green hydrogen have been increased, ensuring the supply of hydrogen and preventing fluctuations in the hydrogen supply due to unstable hydrogen sources, which in turn affects the fluctuations in the production load of the sustainable aviation fuel system produced by biomass gasification coupled with green hydrogen and energy recovery.

[0079] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A biomass gasification coupled with green hydrogen and energy recovery system for producing sustainable aviation fuel, characterized in that: include: The gasification section includes a gasifier and a waste heat recovery device. The gasifier is used to burn biomass to output raw synthesis gas, and the waste heat recovery device is connected to the outlet of the gasifier to receive the raw synthesis gas. The methanol synthesis section is connected to the crude synthesis gas outlet of the waste heat recovery device and is used to purify the crude synthesis gas and then synthesize methanol; The methanol conversion section is connected to the outlet of the methanol synthesis section and is used to receive methanol and convert and oligomerize it to obtain long-chain olefins; A hydrogen production section includes a hydrogen production device, a renewable power generation device, an energy recovery device, and a hydrogen storage device. The hydrogen production device produces hydrogen by electrolyzing water. The renewable power generation device supplies power to the hydrogen production device. The energy recovery device is connected to a waste heat recovery device and is used to recover heat from the crude synthesis gas and convert it into electrical energy. The energy recovery device is connected to the hydrogen production device to supply power to the hydrogen production device. The hydrogen storage device is connected to the outlet of the hydrogen production device to store hydrogen. The hydrogenation section is connected to the methanol conversion processing section and the hydrogen storage device to receive long-chain olefins and hydrogen, and provide long-chain olefins and hydrogen for reaction to obtain sustainable aviation fuel.

2. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 1 is characterized in that: The energy recovery device comprises a steam turbine generator set connected to the steam outlet of the waste heat recovery device, and the electrical output end of the steam turbine generator set is connected to the hydrogen production device.

3. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 1 is characterized in that: The methanol synthesis section includes a purification device and a methanol synthesis tower located downstream of the purification device, and the purification device is connected to the crude synthesis gas outlet of the waste heat recovery device.

4. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 3 is characterized in that: The purge gas outlet of the methanol synthesis tower is connected to a hydrogen extraction device, which receives the purge gas in the methanol synthesis tower and performs hydrogen extraction processing. The outlet of the hydrogen extraction device is connected to a hydrogen storage device.

5. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 4 is characterized in that: The hydrogen extraction device extracts hydrogen by pressure swing adsorption or membrane separation.

6. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 3, 4 or 5, characterized in that: The methanol synthesis tower is provided with a hydrogen replenishing port, which is connected to a hydrogen storage device for receiving hydrogen supplied by the hydrogen storage device.

7. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 3, 4 or 5, characterized in that: The methanol synthesis section includes a methanol distillation tower connected to the outlet of a methanol synthesis tower, and the outlet of the methanol distillation tower is connected to the methanol conversion section.

8. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 1 is characterized in that: The hydrogen storage device is a spherical tank.

9. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 3 is characterized in that: The methanol conversion section includes a methanol conversion reactor and an oligomerization reactor. The methanol conversion reactor is arranged downstream of the methanol synthesis tower, and is used to receive methanol and react to obtain short-chain olefins, wherein the carbon atoms in the short-chain olefins are 3 to 8. The oligomerization reactor is arranged downstream of the methanol conversion reactor, and is used to receive the short-chain olefins and perform oligomerization reaction to obtain the long-chain olefins.

10. The biomass gasification coupled green hydrogen and energy recovery sustainable aviation fuel system according to claim 1 is characterized in that: The renewable electricity generation device includes at least one of a hydroelectric power generation device, a biomass power generation device, a wind power generation device, and a photovoltaic power generation device; The hydroelectric power generation equipment, the biomass power generation equipment, the wind power generation equipment and the photovoltaic power generation equipment are arranged individually or in parallel.

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