Energy storage integrated device for preparing combustible gas from biomass

Abstract

The invention belongs to the technical field of biomass gas preparation, and discloses a biomass-to-combustible gas energy storage integrated device which comprises a combustible gas generation system, the combustible gas generation system comprises a material storage tank used for storing raw materials, and an outlet of the material storage tank communicates with a combustible gas conversion assembly used for preparing combustible gas; the combustible gas cooling and purifying system comprises a desulfurization assembly communicated with the combustible gas conversion assembly and the like; an outlet of the desulfurization assembly is communicated with a purifying assembly for purifying and cooling combustible gas; the gas storage power generation system comprises a gas storage assembly communicated with the purification assembly, and the gas storage assembly is communicated with a power generation assembly used for using combustible gas. The method is simple in process, convenient to operate and operate, high in feasibility, high in conversion efficiency, wide in application range, capable of efficiently achieving raw material conversion, wide in raw material source, high in energy utilization rate, capable of conducting energy storage and power generation more flexibly and convenient to use and popularize.

Description

Technical Field

[0001] The present invention relates to the technical field of biomass gas preparation, and particularly to an integrated device for biomass to produce combustible gas and energy storage. Background Art

[0002] Producing combustible gas from biomass is a sustainable energy production method with broad development prospects, which can promote the resource utilization of oil and gas and reduce the dependence on traditional fossil energy.

[0003] In the existing technologies for producing combustible gas from biomass, in the biomass fluidized bed gasification technology, a large amount of tar is generated during the production process and adheres to the pipeline, blocking the pipeline; while the biomass fermentation gasification technology has low efficiency and poor continuity, and requires specific cultivation conditions and equipment support; therefore, the above methods for producing combustible gas from biomass are not convenient for popularization and use.

[0004] Therefore, the present application designs an integrated device for biomass to produce combustible gas and energy storage to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated device for biomass to produce combustible gas and energy storage to solve the problems existing in the prior art.

[0006] To achieve the above purpose, the present invention provides the following solutions: The present invention provides an integrated device for biomass to produce combustible gas and energy storage, including:

[0007] A combustible gas generation system, the combustible gas generation system includes a storage tank for storing raw materials, and the outlet of the storage tank is connected to a combustible gas conversion component for preparing combustible gas;

[0008] A combustible gas cooling and purification system, the combustible gas cooling and purification system includes a desulfurization component connected to the combustible gas conversion component, and the outlet of the desulfurization component is connected to a purification component for purifying and cooling the combustible gas;

[0009] A gas storage and power generation system, the gas storage and power generation system includes a gas storage component connected to the purification component, and the gas storage component is connected to a power generation component for using the combustible gas.

[0010] Preferably, the combustible gas conversion component includes a high-temperature pyrolysis chamber connected to the storage tank, and the high-temperature pyrolysis chamber is connected to a catalytic cracking device for converting raw materials into combustible gas and introducing it into the desulfurization component.

[0011] Preferably, the combustible gas conversion component includes an oil-gas separation device connected to the catalytic cracking device, the gas outlet of the oil-gas separation device is connected to the desulfurization component, and the oil outlet of the oil-gas separation device is connected to the catalytic cracking device.

[0012] Preferably, the desulfurization assembly includes a desulfurization device communicated with the catalytic cracking device, which is used for separating and removing sulfur components mixed in the combustible gas.

[0013] Preferably, the purification assembly includes a first heat exchanger and an adsorption device connected in sequence. The first heat exchanger is used for cooling the combustible gas after desulfurization, and the adsorption device is used for absorbing carbon dioxide; the inlet of the first heat exchanger is communicated with the outlet of the desulfurization device, and the outlet of the adsorption device is communicated with the gas storage assembly.

[0014] Preferably, the purification assembly further includes a second heat exchanger. The inlet of the second heat exchanger is communicated with the outlet of the adsorption device, and the outlet of the adsorption device is communicated with the inlet of the gas storage assembly, which is used for adjusting the temperature of the combustible gas after absorbing carbon dioxide.

[0015] Preferably, the gas storage assembly includes a plurality of gas storage tanks arranged in parallel. The inlets of the plurality of gas storage tanks are respectively communicated with the outlet of the second heat exchanger, and the outlets of the plurality of gas storage tanks are communicated with the power generation assembly.

[0016] Preferably, the inlet of the gas storage tank is communicated with the second heat exchanger through an intake valve, and the outlet of the gas storage tank is communicated with the power generation assembly through an outlet valve.

[0017] Preferably, the outlets of the plurality of gas storage tanks converge and are communicated with the power generation assembly through a second regulating valve.

[0018] Preferably, a first regulating valve for adjusting the flow rate is arranged between the storage tank and the high-temperature pyrolysis chamber.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects: The present invention discloses an integrated device for producing combustible gas from biomass and storing energy, including three subsystems: a combustible gas generation system, a combustible gas cooling and purification system, and a gas storage and power generation system. The storage tank in the combustible gas generation system stores algal substances as raw materials, and then the raw materials are converted by the combustible gas conversion assembly to form combustible gas. The whole process has high environmental protection and effectively avoids carbon emissions; the combustible gas cooling and purification assembly receives the combustible gas converted from the raw materials and performs desulfurization through the desulfurization assembly to remove sulfur components in the combustible gas, improving the environmental protection of the combustible gas. The desulfurized combustible gas enters the purification assembly for cooling and purification to remove moisture and non-combustible impurities in the combustible gas, improving the purity of the combustible gas and facilitating subsequent use; the gas storage and power generation assembly is a gas storage assembly for storing combustible gas. The gas storage assembly supplies combustible gas to the power generation assembly according to the power usage demand, with flexible adjustment and avoiding waste.

[0020] The process of the present invention is simple, easy to operate, highly feasible, with high conversion efficiency, wide adaptability, capable of efficiently realizing the conversion of raw materials. Moreover, the raw materials are widely sourced, the energy utilization rate is high, and energy storage and power generation can be carried out more flexibly, which is convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0022] Figure 1 It is a schematic diagram of the integrated device for biomass-to-combustible gas energy storage of the present invention;

[0023] Figure 2 It is a schematic diagram of the combustible gas generation system of the present invention;

[0024] Figure 3 It is a schematic diagram of the combustible gas cooling and purification system of the present invention;

[0025] Figure 4 It is a schematic diagram of the gas storage and power generation system of the present invention;

[0026] Figure 5 It is a schematic diagram of the prior art biomass fluidized bed technology of the present invention;

[0027] Figure 6 It is a schematic diagram of the prior art biomass fermentation technology of the present invention;

[0028] In the figure: 1. storage tank; 2. first regulating valve; 3. high-temperature pyrolysis chamber; 4. catalytic cracking device; 5. oil-gas separation device; 6. return oil pipe; 7. desulfurization device; 8. first heat exchanger; 9. adsorption device; 10. second heat exchanger; 11. gas storage tank; 12. intake valve; 13. outlet valve; 14. second regulating valve; 15. first liquid inlet pipe; 16. first cooling pipe; 17. first liquid outlet pipe; 18. second liquid inlet pipe; 19. second cooling pipe; 20. second liquid outlet pipe; 21. combustible gas generation system; 22. combustible gas cooling and purification system; 23. gas storage and power generation system; 24. fuel cell power station. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] See Figure 5In the prior art shown, in the biomass fluidized bed technology, biomass raw materials are pretreated and fed into a fluidized bed gasifier. Through a gasifying agent (such as air, oxygen, or steam), the biomass particles are in a fluidized state. In the fluidized bed, the biomass undergoes processes such as drying, pyrolysis, combustion, and reduction, and finally generates combustible gases such as hydrogen, carbon monoxide, and methane. The produced raw gas needs to be purified to remove impurities such as dust, tar, and sulfides. During the gasification process, incomplete conversion of biomass will produce a large amount of tar. Tar will not only clog the downstream gas transmission pipelines and utilization equipment, but when using air as the gasifying agent, due to the large amount of nitrogen in the air, the calorific value of the biomass gas obtained is relatively low. Currently, the biomass gasification technology, especially the fixed bed gasification technology, has relatively low gasification efficiency and power generation efficiency.

[0031] See Figure 6 In the prior art shown, in the prior art, the organic matter in the biogas digester of the biomass fermentation technology undergoes microbial fermentation in an anaerobic environment to produce combustible gases such as methane, which are sent to a gas storage tank through pipelines. When the methane stored in the gas storage tank reaches a certain concentration, it is transported through pipelines to an internal combustion generator set for power generation. The biomass fermentation has a slow gas production rate, a long fermentation cycle, and the gas production efficiency is greatly affected by factors such as raw material types and fermentation conditions.

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Refer to Figures 1-4 As shown, this embodiment provides a biomass-to-combustible gas energy storage integrated device, including:

[0034] A combustible gas generation system 21, the combustible gas generation system 21 includes a storage tank 1 for storing raw materials, and the outlet of the storage tank 1 is connected to a combustible gas conversion component for preparing combustible gas;

[0035] A combustible gas cooling and purification system 22, the combustible gas cooling and purification system 22 includes a desulfurization component connected to the combustible gas conversion component, and the outlet of the desulfurization component is connected to a purification component for purifying and cooling the combustible gas;

[0036] A gas storage and power generation system 23, the gas storage and power generation system 23 includes a gas storage component connected to the purification component, and the gas storage component is connected to a power generation component for using combustible gas.

[0037] The present invention discloses an integrated device for biomass-produced combustible gas energy storage, which includes three subsystems: a combustible gas generation system, a combustible gas cooling and purification system 22, and a gas storage and power generation system 23. The storage tank 1 of the combustible gas generation system stores algal substances as raw materials, and then the raw materials are converted by a combustible gas conversion component to form combustible gas. The environmental protection level of the whole process is high, effectively avoiding carbon emissions; the combustible gas cooling and purification component receives the combustible gas converted from the raw materials and performs desulfurization through a desulfurization component to remove the sulfur components in the combustible gas, improving the environmental protection level of the combustible gas. The desulfurized combustible gas enters the purification component for cooling and purification to remove the moisture and non-combustible impurities in the combustible gas, improving the purity of the combustible gas and facilitating subsequent use; the gas storage and power generation component is a gas storage component for storing combustible gas, and the gas storage component supplies combustible gas to the power generation component according to the power usage demand, with flexible adjustment to avoid waste. The process of the present invention is simple, easy to operate, highly feasible, with high conversion efficiency, wide adaptability, capable of efficiently realizing raw material conversion, having a wide range of raw material sources, high energy utilization rate, and being able to store energy and generate electricity more flexibly, facilitating popularization and use.

[0038] In an embodiment of the present application, the power generation component includes a fuel cell power station 24, which uses the pure combustible gas stored in the storage component as fuel for thermal combustion power generation and stores the electric energy for convenient use of the electric energy.

[0039] In an embodiment of the present application, the raw material is selected as algal organisms, such as Chlorella. Producing combustible gas from algal bio-oil as a renewable energy method can make good use of marine renewable energy and effectively alleviate the energy shortage problem; compared with traditional fossil fuels, the combustible gas produced by burning algal bio-oil generates fewer harmful substances such as nitrogen oxides and sulfur oxides, which helps to improve air quality; compared with terrestrial plants, algae can produce up to 10 times more biomass per unit area, and they can grow rapidly in various environments, including salt water, brackish water, and wastewater, without competing with the fresh water resources required for human consumption and agriculture, which makes algae an ideal source for large-scale production of combustible gas.

[0040] In an embodiment of the present application, the algae used as raw materials can be produced using lakes, swamps, and wetlands, realizing the renewable of biomass and driving the development of local agricultural economy.

[0041] In an embodiment of the present application, the algae used in the process is Chlorella. The raw materials of Chlorella come from lakes and wetlands. Chlorella is easy to reproduce and has a short growth cycle. It can reproduce rapidly in large quantities in a light and humid environment, and can supply a large amount of raw materials in a relatively short time. Combustible gas is produced through biomass pyrolysis technology and hydrocarbon catalytic cracking technology.

[0042] For a further optimized solution, the combustible gas conversion assembly includes a high-temperature pyrolysis chamber 3 connected to the storage tank 1. The high-temperature pyrolysis chamber 3 is connected to a catalytic cracking device 4, which is used to convert the raw material into combustible gas and introduce it into the desulfurization assembly. The algal raw material flows from the storage tank into the high-temperature pyrolysis chamber 3, generating methane, carbon monoxide, hydrogen, carbon dioxide, and heavy hydrocarbons, etc. Then, the products obtained from pyrolysis are introduced into the catalytic cracking device 4, where reactions occur under high temperature, high pressure, and the action of a catalyst. Heavy hydrocarbons will generate combustible gases such as methane, hydrogen, carbon monoxide, propylene, and ethylene, light oil, and impurity gases such as sulfur and carbon dioxide, enabling it to be used as fuel for subsequent use.

[0043] For a further optimized solution, the combustible gas conversion assembly includes an oil-gas separation device 5 connected to the catalytic cracking device 4. The gas outlet of the oil-gas separation device 5 is connected to the desulfurization assembly, and the oil outlet of the oil-gas separation device 5 is connected to the catalytic cracking device 4. The mixture generated by high-temperature cracking enters the oil-gas separation device 5 for oil-gas separation, separating the gas and light oil. The oil is at the bottom layer and the gas is at the upper layer. The gas in the upper layer enters the next process, while the separated light oil flows back to the catalytic cracking device 4 through the oil return pipe 6 for catalytic cracking again, further improving the gas production efficiency and promoting the resource utilization of oil and gas.

[0044] For a further optimized solution, the desulfurization assembly includes a desulfurization device 7 connected to the catalytic cracking device 4, which is used to separate and remove the sulfur components mixed in the combustible gas. The desulfurization device 7 is used to separate and remove the sulfur components mixed in the combustible gas to ensure the smooth progress of subsequent processing.

[0045] In an embodiment of the present application, the desulfurization device 7 refers to a device for removing sulfur from the raw material, mainly used to remove sulfur dioxide in the combustion flue gas to reduce air pollution.

[0046] Currently, the desulfurization methods are mainly divided into two categories: dry desulfurization and wet desulfurization.

[0047] Dry desulfurization

[0048] Principle: Use a fixed bed to absorb sulfur dioxide generated during the coal combustion process.

[0049] Device: The dry desulfurization device 7 is usually a hollow cylindrical device filled with desulfurization agents such as iron oxide, silica gel, and activated carbon.

[0050] Application: Mainly used in small coal-fired power plants.

[0051] Advantages and disadvantages: The treatment efficiency is relatively low, but it has less impact on wastewater generation and does not require the use of water. Therefore, it is more suitable for areas with water shortages.

[0052] Wet desulfurization

[0053] Principle: The gas after coal combustion is brought into contact with a liquid absorbent, enabling sulfur dioxide to be absorbed by the chemical absorbent solution.

[0054] Device: The wet desulfurization device 7 usually consists of components such as an absorption tower, a sprayer, and a controller. The absorption tower is equipped with a sprayer for spraying alkaline absorbent solutions such as limestone slurry and ammonia water.

[0055] Application: Wet desulfurization is the main method for gas treatment in the petroleum refining system and is also widely used in flue gas desulfurization of large enterprises such as coal-fired power plants.

[0056] Advantages and disadvantages: It has a high desulfurization efficiency and treatment effect, but causes relatively serious pollution to wastewater and requires a large amount of absorbent.

[0057] Types and Processes of Desulfurization Device 7

[0058] Lime Method - Lime Gypsum Method

[0059] Device: The desulfurization process consists of an absorbent preparation system, a flue gas absorption and oxidation system, a desulfurization by-product treatment system, a desulfurization wastewater treatment system, flue gas system automatic control, a gypsum treatment system, a wastewater system, a control electrical system, and an on-line monitoring system.

[0060] Scope of application: Suitable for flue gas desulfurization of large enterprises.

[0061] Seawater Method

[0062] Device: The desulfurization process consists of a flue gas system, a SO 2 absorption system, a seawater supply and drainage system, a seawater restoration system, electrical and control system equipment, etc.

[0063] Scope of application: Applicable to flue gas desulfurization of power plants near the sea, with good diffusion conditions, using seawater as cooling water, and burning low to medium sulfur coal. However, it is restricted by geography, the sulfur content of the fuel should be controlled at about 1%, and the content of heavy metal elements in the fuel is required to be low.

[0064] Magnesium Method

[0065] Device: The desulfurization device 7 consists of equipment such as a booster, an absorption tower, an absorption circulation pump, and an oxidation blower.

[0066] Desulfurization principle: Using magnesium oxide and calcium oxide generated by calcining magnesite as desulfurization absorbents, magnesium hydroxide and calcium hydroxide are prepared from magnesium oxide and calcium oxide through a slurry preparation system and brought into full contact with the flue gas in the desulfurization absorption tower. Sulfur dioxide in the flue gas reacts chemically with magnesium hydroxide and calcium hydroxide in the slurry to form magnesium sulfite and calcium sulfite, removing SO 2 、SO 3 、HC l, acidic substances such as HF, to purify flue gas from coal-fired power plants.

[0067] Advantages and disadvantages: The desulfurization rate can reach over 95%, the floor area is relatively small, the one-time investment is less, the operating cost is low, the operation is reliable, and there will be no problems such as fouling, caking, abrasion, and pipeline blockage. It has a wide range of applications, and the desulfurized waste liquid has a high recycling value. However, the system is relatively complex, the price of magnesium salts is high, and the comprehensive utilization efficiency is low in China.

[0068] Scope of application: Widely applicable to desulfurization projects in the power industry, flue gas from metallurgical sintering machines, industrial boilers, paper mills, etc.

[0069] Organic amine method

[0070] Device: The desulfurization process consists of a pre-separator, an absorption device, a desorption device, and an amine purification device.

[0071] Desulfurization principle: Use the alkalinity of the organic amine solvent to absorb the acidic gas SO2 in the flue gas, and use the desorption device to separate SO 2 from the amine solution to obtain high-purity saturated SO 2 . The organic amine is regenerated and recycled, and SO 2 can be used to produce sulfuric acid or sulfur.

[0072] Advantages and disadvantages: The desulfurization efficiency is high, over 99%. The process flow is simple, the system operation and maintenance are simple and reliable, the system corrosion is small, there is no secondary pollution, and the by-products sulfuric acid and sulfur have high commercial value. However, the one-time investment is large, downstream supporting devices such as sulfur or sulfuric acid recovery are required, the consumption of regeneration steam is large, the energy consumption cost is high, and a small amount of heat-stable salts generated during the oxidation of organic amines need to be removed.

[0073] Scope of application: Generally applied to the removal of H 2 S in refineries. This process has achieved great success in the selective removal of H 2 S.

[0074] Sodium sulfite method

[0075] Device: The desulfurization process includes flue gas pretreatment, SO 2 absorption, absorbent regeneration, SO 2 recovery, and product purification processes.

[0076] Desulfurization principle: Using sodium sulfite as the absorbent, absorb sulfur dioxide in the flue gas at low temperature to form sodium bisulfite. The saturated solution is heated and decomposed to regenerate SO 2 , which can be used to produce sulfuric acid or sulfur. Due to the evaporation of water, sodium sulfite crystallizes. The sodium sulfite crystals are dissolved and then used as the absorbent for recycling. Therefore, it is also called the "sodium sulfite circulation method".

[0077] Scope of application: applicable to occasions where sulfur dioxide needs to be recovered and sulfuric acid or sulfur is to be prepared.

[0078] Zinc oxide method

[0079] Device: mainly composed of processes such as pulp preparation, washing and desulfurization, and solid-liquid separation.

[0080] Scope of application: This technology is applicable to various furnace types burning coals with high, medium, and low sulfur contents, and the sulfur content of the coal is in the range of 0.4% - 8%.

[0081] Adsorption method

[0082] Device: mainly composed of flue gas pretreatment, adsorbent, SO 2 Recovery system, etc.

[0083] Desulfurization principle: mainly uses a porous solid adsorbent to treat sulfur-containing flue gas, so that the SO 2 components in the flue gas are adsorbed on the solid surface to achieve the purpose of flue gas desulfurization.

[0084] The desulfurization device 7 of this application can be selected according to requirements, which is a conventional technology in the field and will not be elaborated here.

[0085] Further optimization plan, the purification component includes a first heat exchanger 8 and an adsorption device 9 connected in sequence. The first heat exchanger 8 is used to cool the desulfurized combustible gas, and the adsorption device 9 is used to absorb carbon dioxide; the inlet of the first heat exchanger 8 is connected to the outlet of the desulfurization device 7, and the outlet of the adsorption device 9 is connected to the gas storage component; the purification component also includes a second heat exchanger 10. The inlet of the second heat exchanger 10 is connected to the outlet of the adsorption device 9, and the outlet of the adsorption device 9 is connected to the inlet of the gas storage component, and is used to adjust the temperature of the combustible gas after adsorbing carbon dioxide. The purification component is composed of the first heat exchanger 8, the adsorption device 9, and the second heat exchanger 10. The first heat exchanger 8 is used to cool the desulfurized combustible gas to avoid damage caused by high-temperature gas passing through the adsorption device 9; the adsorption device 9 is used to absorb carbon dioxide to further improve the purity of the gas; during the process of adsorbing carbon dioxide, the second heat exchanger 10 is used to adjust the temperature of the combustible gas after adsorbing carbon dioxide to ensure its suitability for subsequent storage and utilization.

[0086] In an embodiment of this application, the adsorption device 9 is filled with soda lime. Carbon dioxide in the cooled combustible gas reacts with the soda lime and is adsorbed to achieve the purpose of removing carbon dioxide; at the same time, the first heat exchanger 8 pre-cools the combustible gas to prevent the high-temperature soda lime that absorbs carbon dioxide from being decomposed by high temperature.

[0087] In an embodiment of this application, the adsorption of carbon dioxide by soda lime will release heat, resulting in the temperature rise of the combustible gas. Therefore, the second heat exchanger 10 is used to cool the combustible gas for convenient subsequent storage.

[0088] In one embodiment of the present application, the first heat exchanger 8 includes a first cooling pipe 16 bent and disposed inside the first housing. Both ends of the first cooling pipe 16 are respectively used to realize the circulation of the coolant through a first liquid inlet pipe 15 and a first liquid outlet pipe 17. When the high-temperature combustible gas passes through the first cooling pipe 16, heat exchange occurs to reduce the temperature of the combustible gas, facilitating the adsorption of carbon dioxide.

[0089] In one embodiment of the present application, the second heat exchanger 10 includes a second cooling pipe 19 bent and disposed inside the second housing. Both ends of the second cooling pipe 19 are respectively used to realize the circulation of the coolant through a second liquid inlet pipe 18 and a second liquid outlet pipe 20. When the combustible gas that has been reheated after carbon dioxide removal passes through the second cooling pipe 19, heat exchange occurs to reduce the temperature of the combustible gas, facilitating subsequent storage.

[0090] In a further optimized solution, the gas storage assembly includes a number of gas storage tanks 11 arranged in parallel. The inlets of the number of gas storage tanks 11 are respectively communicated with the outlet of the second heat exchanger 10, and the outlets of the number of gas storage tanks 11 are communicated with the power generation assembly. The gas storage assembly is composed of a number of gas storage tanks 11 arranged in parallel, which can be used to store the combustible gas after purification and temperature reduction, and can store more flexibly so as to be supplied to the power generation assembly for use when needed; and the number of gas storage tanks 11 are independently arranged, which can conveniently control the flow rate and speed of the gas supply, provide fuel for the fuel cell power station 24, and generate electricity.

[0091] In a further optimized solution, the inlet of the gas storage tank 11 is communicated with the second heat exchanger 10 through an intake valve 12, and the outlet of the gas storage tank 11 is communicated with the power generation assembly through an outlet valve 13. The intake valve 12 and the outlet valve 13 are used to control the inlet and outlet of the gas in the gas storage tank 11 to ensure the safe and stable operation of the system, facilitate the inspection and maintenance of the gas storage tank 11, and can also facilitate the replacement of the gas storage tank 11 without damaging the system.

[0092] In a further optimized solution, the outlets of the number of gas storage tanks 11 converge and are communicated with the power generation assembly through a second regulating valve 14. The structure in which the outlets of the number of gas storage tanks 11 converge into a main pipe through branch pipes, and the main pipe is communicated with the fuel cell power station 24 through the second regulating valve 14, facilitates the control of the flow rate and pressure of the combustible gas entering the fuel cell power station 24 to ensure the smooth progress of the power generation process.

[0093] In a further optimized solution, a first regulating valve 2 for regulating the flow rate is provided between the storage tank 1 and the high-temperature pyrolysis chamber 3. The first regulating valve 2 is used to control the flow rate of the raw material entering the high-temperature pyrolysis chamber 3 to ensure the smooth progress of the pyrolysis process and the stable operation of the system.

[0094] Advantages of the device:

[0095] 1. The present invention uses chlorella as a raw material for pyrolysis and catalytic cracking. Hydrocarbons are obtained by pyrolyzing chlorella, and the liquid hydrocarbons and combustible gas generated by catalytic cracking of the hydrocarbons are separated by an oil-gas separator. The liquid hydrocarbons return to the catalytic cracking chamber to generate combustible gas. After the combustible gas is purified, it is stored and then released through a fuel cell. This technology has a high energy utilization rate and is easy to operate, and can be achieved only with simple chemical catalytic cracking equipment and heating equipment.

[0096] 2. The flow rate of the biomass material entering the device is adjusted by the first regulating valve 2 to control the mass flow rate of the pyrolysis and catalytic cracking products, and the gas storage volume is regulated in real time. The gas transmission flow rate of the gas storage tank 11 can also be controlled by the regulating valve, thereby regulating the power generation of the fuel cell power station 24.

[0097] 3. This system can be combined with the marine industry to utilize algae aquaculture to produce renewable chlorella raw materials, realizing the renewable utilization of marine energy and the resource utilization of oil and gas, and effectively driving the development of the marine economy.

[0098] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0099] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A biomass-to-gas energy storage integrated device, characterized in that: include: A combustible gas generating system (21), the combustible gas generating system (21) comprising a storage tank (1) for storing raw materials, the outlet of the storage tank (1) being connected to a combustible gas conversion component for preparing combustible gas; A combustible gas cooling and purification system (22), the combustible gas cooling and purification system (22) comprising a desulfurization component connected to the combustible gas conversion component, the outlet of the desulfurization component being connected to a purification component for purifying and cooling the combustible gas; A gas storage power generation system (23), the gas storage power generation system (23) comprising a gas storage component connected to the purification component, the gas storage component being connected to a power generation component for using combustible gas.

2. The biomass-to-combustible gas energy storage integrated device according to claim 1 is characterized in that: The combustible gas conversion component comprises a high-temperature pyrolysis chamber (3) connected to the storage tank (1), and the high-temperature pyrolysis chamber (3) is connected to a catalytic cracking device (4) for converting raw materials into combustible gas and passing it into the desulfurization component.

3. The biomass-to-combustible gas energy storage integrated device according to claim 2 is characterized in that: The combustible gas conversion component comprises an oil-gas separation device (5) connected to the catalytic cracking device (4), the gas outlet of the oil-gas separation device (5) is connected to the desulfurization component, and the oil outlet of the oil-gas separation device (5) is connected to the catalytic cracking device (4).

4. The biomass-to-combustible gas energy storage integrated device according to claim 2 is characterized in that: The desulfurization component comprises a desulfurization device (7) connected to the catalytic cracking device (4) and used for separating and removing sulfur components mixed in the combustible gas.

5. The biomass-to-combustible gas energy storage integrated device according to claim 4 is characterized in that: The purification component comprises a first heat exchanger (8) and an adsorption device (9) which are connected in sequence, wherein the first heat exchanger (8) is used to cool the combustible gas after desulfurization, and the adsorption device (9) is used to absorb carbon dioxide; the inlet of the first heat exchanger (8) is connected to the outlet of the desulfurization device (7), and the outlet of the adsorption device (9) is connected to the gas storage component.

6. The biomass-to-combustible gas energy storage integrated device according to claim 5 is characterized in that: The purification component further comprises a second heat exchanger (10), the inlet of the second heat exchanger (10) being connected to the outlet of the adsorption device (9), and the outlet of the adsorption device (9) being connected to the inlet of the gas storage component, for adjusting the temperature of the combustible gas after the adsorption of carbon dioxide.

7. The biomass-to-combustible gas energy storage integrated device according to claim 6 is characterized in that: The gas storage assembly comprises a plurality of gas storage tanks (11) arranged in parallel, the inlets of the plurality of gas storage tanks (11) being respectively connected to the inner outlets of the second heat exchanger (10), and the outlets of the plurality of gas storage tanks (11) being connected to the power generation assembly.

8. The integrated biomass-to-combustible gas energy storage device according to claim 7 is characterized in that: The inlet of the gas storage tank (11) is connected to the second heat exchanger (10) through an inlet valve (12), and the outlet of the gas storage tank (11) is connected to the power generation component through an outlet valve (13).

9. The biomass-to-combustible gas energy storage integrated device according to claim 7, characterized in that: The outlets of the plurality of gas storage tanks (11) are collected and communicated with the power generation assembly through a second regulating valve (14).

10. The biomass-to-combustible gas energy storage integrated device according to claim 2, characterized in that: A first regulating valve (2) for regulating flow is provided between the material storage tank (1) and the high-temperature pyrolysis chamber (3).

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