A garbage pyrolysis hydrogen production system
The waste pyrolysis hydrogen production system generates clean hydrogen and solid residue through high-temperature pyrolysis and catalytic decomposition, solving the problems of harmlessness, volume reduction and resource utilization in waste treatment, and realizing environmentally friendly resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC TDC ENVIRONMENTAL ENG
- Filing Date
- 2025-08-02
- Publication Date
- 2026-07-14
AI Technical Summary
Existing waste treatment technologies cannot achieve the harmless, reduced, and resource-based treatment of waste. Deep burial and incineration methods pose problems of land occupation and environmental pollution.
The waste pyrolysis hydrogen production system includes a feeding module, a pyrolysis module, a dust removal module, a tar removal catalytic module, a hydrogen production module, and a carbon dioxide removal module. Through high-temperature pyrolysis, catalytic decomposition, and gas separation, it generates clean hydrogen and solid residue.
It achieves the harmless, reduced, and resource-based treatment of waste, generates clean new energy hydrogen, and uses the solid residue as building materials or fuel additives, thus solving the problems of environmental pollution and resource waste.
Smart Images
Figure CN224494081U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of waste treatment, and more specifically, relates to a waste pyrolysis hydrogen production system. Background Technology
[0002] With the acceleration of global urbanization and the improvement of consumption levels, the amount of waste is increasing daily. Currently, the main methods for waste disposal are deep landfill and incineration.
[0003] However, deep burial requires a large amount of land resources and also produces methane gas with a strong greenhouse effect and leachate that pollutes groundwater. While incineration can quickly reduce waste volume, it produces toxic dioxins and acidic gases, polluting the atmosphere. Neither method achieves the complete harmlessness, volume reduction, and resource recovery of waste. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing waste treatment technologies that cannot achieve harmless, volume-reduced, and resource-based treatment of waste, and to provide a waste pyrolysis hydrogen production system. This waste pyrolysis hydrogen production system can process solid waste to obtain hydrogen and solid residue, thus achieving harmless, volume-reduced, and resource-based treatment of waste.
[0005] The technical solution adopted by this utility model is: a waste pyrolysis hydrogen production system, including a controller and a feeding module, a pyrolysis module, a dust removal module, a tar removal catalytic module, a hydrogen production module, and a carbon dioxide removal module connected in sequence; the feeding module is used to feed materials to the pyrolysis module; the pyrolysis module is used to pyrolyze the materials to obtain pyrolysis gas; the dust removal module can remove impurities in the pyrolysis gas; the tar removal catalytic module is used to decompose large molecule gases in the pyrolysis gas into small molecule gases, the small molecule gases including carbon monoxide, carbon dioxide, hydrogen, and methane; the hydrogen production module is used to convert carbon monoxide and methane in the small molecule gases into hydrogen and carbon dioxide; the carbon dioxide removal module is used to absorb carbon dioxide in the small molecule gases; the controller is connected to the feeding module, pyrolysis module, dust removal module, tar removal catalytic module, hydrogen production module, and carbon dioxide removal module.
[0006] Preferably, the feeding module includes a storage bin and a feeding section, with both ends of the feeding section connected to the storage bin and the feeding end of the pyrolysis module, respectively.
[0007] Preferably, the pyrolysis module includes a pyrolysis device and a slag collection device. The pyrolysis device has a feeding belt inside its cavity. The two ends of the feeding belt are located at the feed end and the discharge end of the pyrolysis device, respectively. The slag collection device is connected to the discharge end of the pyrolysis device. The discharge end of the pyrolysis device is also connected to the dust removal module.
[0008] Preferably, the pyrolysis device includes a first heating chamber, a second heating chamber, and a third heating chamber connected in sequence. The feeding belt is located at the bottom of the first heating chamber, the second heating chamber, and the third heating chamber. The feeding module is connected to the first heating chamber, and the slag collection device is connected to the third heating chamber. The temperature in the first heating chamber is 300–400°C; the temperature in the second heating chamber is 500–700°C; and the temperature in the third heating chamber is 800–900°C.
[0009] Preferably, it also includes a steam generator that can provide water vapor, the outlet of which is connected to the feed end of the detar catalytic module and the feed end of the hydrogen production module.
[0010] Preferably, the tar removal catalytic module includes a generating tube, a first heating element is installed inside the generating tube, the inner cavity of the generating tube is filled with a catalyst, the feed end of the generating tube is connected to the steam generator and the dust removal module, and the discharge end of the generating tube is connected to the hydrogen production module.
[0011] Preferably, there are several generating tubes, and the feed ends of the several generating tubes are all connected to the steam generator and the dust removal module, and the discharge ends are all connected to the hydrogen production module.
[0012] Preferably, the hydrogen production module includes a reaction tube, a second heating element is installed inside the reaction tube, the feed end of the reaction tube is connected to the discharge end of the steam generator and the detar catalytic module, and the discharge end of the reaction tube is connected to the carbon dioxide removal module.
[0013] Preferably, the carbon dioxide removal module includes a compressor, a pressure swing adsorption (PSA) tower, and a vacuum pump. The feed end of the compressor is connected to the discharge end of the hydrogen production module, the discharge end of the compressor is connected to the feed end of the PSA tower, the vacuum pump is connected to the discharge end of the PSA tower, the discharge end of the PSA tower is also connected to a hydrogen guide pipe, the other end of the vacuum pump is connected to a carbon dioxide collection section, and the PSA tower is filled with an adsorption section capable of adsorbing carbon dioxide.
[0014] Preferably, the adsorption section is a 13x zeolite molecular sieve.
[0015] The advantages and positive effects of this utility model are:
[0016] This invention provides a waste pyrolysis hydrogen production system, which can pyrolyze solid waste to obtain clean new energy hydrogen, and can also collect solid waste residue and carbon dioxide gas, realizing the harmless, reduced and resource-based treatment of solid waste. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model, where the arrows indicate the direction of gas movement;
[0018] Figure 2 This is a schematic diagram of the pyrolysis module of this utility model. The arrows in the diagram indicate the direction of gas movement.
[0019] Figure 3 This is a schematic diagram of the pyrolysis device of this utility model.
[0020] In the picture:
[0021] 1. Feeding module; 101. Storage bin; 102. Feeding section; 2. Pyrolysis module; 201. Pyrolysis device; 202. Slag collection device; 203. Feeding belt; 211. First heating chamber; 212. Second heating chamber; 213. Third heating chamber; 3. Dust removal module; 4. Tar removal catalytic module; 5. Hydrogen production module; 6. Carbon dioxide removal module; 601. Compressor; 602. Pressure swing adsorption tower; 603. Vacuum pump; 7. Steam generator. Detailed Implementation
[0022] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.
[0023] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0025] like Figure 1As shown, the system includes a controller and sequentially connected components: a feeding module 1, a pyrolysis module 2, a dust removal module 3, a tar removal catalytic module 4, a hydrogen production module 5, and a carbon dioxide removal module 6. The controller is connected to these modules and controls their operation.
[0026] The feeding module 1 is used to feed materials to the pyrolysis module 2, which is used to pyrolyze the materials to obtain pyrolysis gas. The dust removal module 3 can remove impurities from the pyrolysis gas. The tar removal catalytic module 4 is used to decompose the large molecular gases in the pyrolysis gas into small molecular gases. The large molecular gases include tar and aromatic hydrocarbons, and the small molecular gases include carbon monoxide, hydrogen, carbon dioxide and methane. The hydrogen production module 5 is used to convert carbon monoxide and methane in the small molecular gases into hydrogen and carbon dioxide. The carbon dioxide removal module 6 is used to absorb carbon dioxide in the small molecular gases.
[0027] The operating principle of this waste pyrolysis hydrogen production system is as follows:
[0028] Material made from solid waste is fed into pyrolysis module 2 by feeding module 1. Pyrolysis module 2 performs high-temperature pyrolysis on the material under anaerobic conditions, yielding pyrolysis gas and residue. The pyrolysis gas consists of macromolecular and small-molecule gases. Macromolecular gases include tar and aromatic hydrocarbons, while small-molecule gases include carbon monoxide, hydrogen, carbon dioxide, and methane. The molecular particle size of each component in the macromolecular gases is greater than 1 nm, and the molecular particle size of each component in the small-molecule gases is less than 1 nm. The residue, discharged from the outlet of pyrolysis module 2, can be used as building material or fuel additive. After exiting pyrolysis module 2, the pyrolysis gas enters dust removal module 3, which further purifies the gas, removing dust and other particulate impurities carried within it. The pyrolysis gas exiting the dust removal module 3 has had particulate impurities such as dust removed. It then enters the tar removal catalytic module 4, which breaks down large molecules such as tar and aromatic hydrocarbons into smaller molecules including methane, carbon monoxide, carbon dioxide, and hydrogen. After this breakdown, the main components of the pyrolysis gas are replaced by carbon monoxide, methane, carbon dioxide, and hydrogen. The pyrolysis gas from the tar removal catalytic module 4 is then transported to the hydrogen production module 5, where it reforms the methane into carbon dioxide and hydrogen, and converts carbon monoxide into carbon dioxide. The pyrolysis gas from the hydrogen production module 5 is then transported to the carbon dioxide removal module 6, which absorbs carbon dioxide and purifies the hydrogen. The output hydrogen is then reused as a clean, renewable energy source.
[0029] Please see Figure 1 , Figure 2 and Figure 3 It can be seen that:
[0030] The feeding module 1 includes a storage bin 101 and a feeding section 102. Both ends of the feeding section 102 are connected to the storage bin 101 and the feeding end of the pyrolysis module 2, respectively. The storage bin 101 can store solid waste materials. The feeding section 102 is a feeding pipe with an internal spiral. Both ends of the feeding pipe are connected to the bottom of the storage bin 101 and the feeding end of the pyrolysis module 2, respectively. One end of the feeding spiral is connected to a drive motor. The feeding spiral can rotate inside the feeding pipe under the drive of the drive motor. The length of the feeding spiral is equal to the length of the feeding pipe. As the feeding spiral rotates, it can drive the material inside the feeding pipe forward, that is, drive the material from the storage bin 101 into the pyrolysis module 2.
[0031] The feeding pipe can also be two-sectioned, consisting of a first feeding screw and a second feeding screw. There is a height difference between the first and second feeding screws. Material from the first feeding screw enters the second feeding screw, which then continues to transport the material into the pyrolysis module 2. Setting two feeding screws at both ends further improves the accuracy of the feeding quantity. The storage silo 101 can temporarily store solid waste materials and replenish them when needed, improving the overall stability of the system.
[0032] The pyrolysis module 2 includes a pyrolysis device 201 and a slag collection device 202. The pyrolysis device 201 has a feeding belt 203 inside, with its two ends located at the feed end and discharge end of the pyrolysis device 201, respectively. The slag collection device 202 is connected to the discharge end of the pyrolysis device 201, which is also connected to a dust removal module 3. The pyrolysis device 201 is a closed shell, inside which thermocouples are fixedly installed for heating the inner cavity. A heat insulation layer is provided on the shell to prevent heat loss. The feed end of the shell is connected to a nitrogen source, which can purge the inner cavity with nitrogen to provide an oxygen-deficient environment.
[0033] like Figure 3As shown, the pyrolysis device 201 includes a first heating chamber 211, a second heating chamber 212, and a third heating chamber 213 connected in sequence. A feeding belt 203 is located at the bottom of the first heating chamber 211, the second heating chamber 212, and the third heating chamber 213. A feeding module 1 is connected to the first heating chamber 211, and a slag collection device 202 is connected to the third heating chamber 213. The temperature inside the first heating chamber 211 is 300–400°C; the temperature inside the second heating chamber 212 is 500–700°C; and the temperature inside the third heating chamber 213 is 800–900°C. The first heating chamber 211, the second heating chamber 212, and the third heating chamber 213 are separated by a heat insulation plate. The heat insulation plate only has an outlet for the feeding belt 203 and material transport. The feeding belt 203 can drive the material entering the first heating chamber 211 forward into the second heating chamber 212 and the third heating chamber 213. Each heating chamber is equipped with a thermocouple, and the feed end of each heating chamber is connected to a nitrogen source to purge the heating chamber. The nitrogen purging direction is the same as the movement direction of the feeding belt 203, which is used to blow the pyrolysis gas to the next module.
[0034] The temperatures of the three heating chambers increase sequentially. The first heating chamber 211 removes moisture from the material at high temperatures, preventing moisture from subsequently entering the high-temperature zone and causing explosions and increased energy consumption. The second heating chamber 212 pyrolyzes the material, breaking down the solid organic matter in the material into pyrolysis gases. The third heating chamber 213 further heats the material at high temperatures, forming stable carbon slag with a high fixed carbon content. The three heating chambers in the pyrolysis device 201 further improve the utilization rate of solid waste.
[0035] The pyrolysis unit 2 can convert solid waste into gas under high temperature and oxygen-deficient conditions. The pyrolysis unit 201 is a closed shell, and thermocouples are fixedly installed inside the shell to heat the inner cavity. An insulation layer is provided on the shell to prevent heat loss. The feed end of the shell is connected to a nitrogen source, which can purge the inner cavity with nitrogen to provide oxygen-deficient conditions. Nitrogen is an inert gas and does not participate in the pyrolysis gas reaction after mixing with it; its presence does not affect the system operation. When the solid waste is conveyed into the pyrolysis unit 201 by the feeding unit, the material falls onto the feeding belt 203. The feeding belt 203 prevents the solid waste from accumulating in the pyrolysis module 2, avoiding uneven heating and incomplete pyrolysis. The feeding belt 203 carries the material forward in the pyrolysis device 201. During the material's movement, the thermocouples in the pyrolysis device 201 heat the material, causing it to decompose at high temperature. Most of the material decomposes into pyrolysis gas, which then enters the dust removal module 3. A small amount of material residue remains on the feeding belt 203. When the material residue is transported to the end of the feeding belt 203, it falls from the feeding belt 203 into the slag collection device 202. The residue collected by the slag collection device 202 can be used as building material or fuel additive.
[0036] Dust removal module 3 is a cyclone dust collector; specifically, any cyclone dust collector that meets the technical requirements for environmental protection products in HJ / T 286-2006 is acceptable. The working principle of the cyclone dust collector is as follows:
[0037] 1) Dust-laden gas enters tangentially: Dust-laden gas enters the upper part of the cyclone dust collector through a tangential inlet at a speed of 15-25 m / s. Due to the tangential inlet design, the airflow forms a high-speed rotating external vortex (moving downwards) within the cylinder; 2) Centrifugal separation of dust: In the rotating airflow, dust particles, due to their much higher density than the gas, are subjected to centrifugal force and thrown towards the cylinder wall. Larger and heavier particles first impact the cylinder wall, lose kinetic energy, and then slide down the wall to the bottom ash hopper; 3) Reversing airflow upwards (internal vortex): After the rotating airflow reaches the bottom of the cone, due to the contraction of the conical structure, the radius of rotation decreases, and the airflow velocity further increases. Most of the purified gas forms an internal vortex (rotating upwards) and is discharged from the top exhaust pipe.
[0038] It also includes a steam generator 7 that provides water vapor, the outlet of which is connected to the inlet of the detar removal catalytic module 4 and the inlet of the hydrogen production module 5. Water vapor is required in the process of decomposing large molecules of gas into smaller molecules in the pyrolysis gas and in preparing carbon monoxide and methane from the smaller molecules into carbon dioxide and hydrogen. Therefore, the steam generator 7 provides high-temperature water vapor to the detar removal catalytic module 4 and the hydrogen production module 5, facilitating the reaction of the pyrolysis gas within these modules.
[0039] In this embodiment, the tar removal catalytic module 4 includes a generating tube, inside which a thermocouple is installed. The inner cavity of the generating tube is filled with catalyst. The feed end of the generating tube is connected to the steam generator 7 and the dust removal module 3, and the discharge end of the generating tube is connected to the hydrogen production module 5. There are several generating tubes, and the feed ends of all generating tubes are connected to the steam generator 7 and the dust removal module 3, and the discharge ends of all generating tubes are connected to the hydrogen production module 5. An insulation layer is provided on the outer wall of the generating tube to prevent heat leakage. The generating tube is a tubular furnace, and the catalyst is a Ni-based catalyst.
[0040] There are several generating tubes, each with its inlet connected to a steam generator 7 and a dust removal module 3, and its outlet connected to a hydrogen production module 5. The first heating element is a thermocouple, and the outer wall of the generating tube is equipped with an insulation layer to prevent heat leakage. The generating tube can be a tubular furnace structure, and the catalyst is a Ni-based catalyst, such as Ni-Mg / Al2O3. The temperature of the thermocouple inside the generating tube is 1000℃. Under high-temperature conditions, substances such as tar are deeply cracked into carbon monoxide, carbon dioxide, methane, and hydrogen by the Ni-based catalyst. That is, the gas composition of the pyrolysis gas exiting the generating tube is renewed to carbon monoxide, carbon dioxide, methane, and hydrogen. Multiple generating tubes can be installed to further increase the pyrolysis efficiency of the pyrolysis gas.
[0041] In this embodiment, the hydrogen production module 5 includes a reaction tube, a thermocouple is installed inside the reaction tube, the feed end of the reaction tube is connected to the discharge end of the steam generator 7 and the detar catalytic module 4, the discharge end of the reaction tube is connected to the carbon dioxide removal module 6, and the reaction tube is a tubular furnace.
[0042] The second heating element is a thermocouple, and the outer wall of the reaction tube is insulated to prevent heat leakage. The reaction tube can be a tubular furnace structure. The pyrolysis gas mixes with water vapor inside the reaction tube and undergoes high-temperature reforming to produce hydrogen and carbon dioxide. The chemical reactions occurring inside the reaction tube are as follows: CH4 + 2H2O = 4H2 + CO2; CO + H2O = CO2 + H2.
[0043] In this embodiment, as shown... Figure 2 As shown, the carbon dioxide removal module 6 includes a compressor 601, a pressure swing adsorption tower 602, and a vacuum pump 603. The feed end of the compressor 601 is connected to the discharge end of the hydrogen production module 5, the discharge end of the compressor is connected to the feed end of the pressure swing adsorption tower 602, the vacuum pump 603 is connected to the discharge end of the pressure swing adsorption tower 602, the discharge end of the pressure swing adsorption tower 602 is also connected to a hydrogen guide pipe, and the other end of the vacuum pump 603 is connected to a carbon dioxide collection section. The pressure swing adsorption tower 602 is filled with an adsorption section that can adsorb carbon dioxide.
[0044] The adsorption section is composed of 13x zeolite molecular sieve, which is a synthetic porous aluminosilicate crystal with... Its uniform pore structure, with its honeycomb configuration, creates a sieving effect through micropores, allowing selective adsorption of particles smaller than [a certain size]. This product is used in the petrochemical industry for deep drying and desulfurization of gases, in the environmental protection field for the removal of VOCs, and is widely used in air separation units for gas purification.
[0045] Under high-temperature conditions, substances such as tar are deeply cracked into carbon monoxide, carbon dioxide, methane, and hydrogen through a Ni-based catalyst. This means the gaseous composition of the pyrolysis gas exiting the generator tube is renewed to include carbon monoxide, carbon dioxide, methane, and hydrogen. The pyrolysis gas in the reaction tube mixes with water vapor and undergoes high-temperature reforming within the tube to produce hydrogen and carbon dioxide.
[0046] The 13x zeolite molecular sieve can adsorb carbon dioxide from the gas during the high-pressure stage and release the adsorbed carbon dioxide during the low-pressure stage. The specific working principle of the carbon dioxide removal module 6 is as follows: Compressor 601 delivers the pyrolysis gas mixed with carbon dioxide and hydrogen to the pressure swing adsorption tower 602. The pressure swing adsorption tower 602 is a high-pressure environment. Under this high-pressure environment, the carbon dioxide in the pyrolysis gas is adsorbed in the adsorption section (13x zeolite molecular sieve), while hydrogen enters the hydrogen guide pipe through the outlet connected to the hydrogen guide pipe on the pressure swing adsorption tower 602, completing the hydrogen collection. The hydrogen guide pipe is equipped with a switch. When the adsorption section reaches saturation, the hydrogen guide pipe is closed, and vacuum pump 603 evacuates the interior of the pressure swing adsorption tower 602. At this time, the carbon dioxide adsorbed on the adsorption section is discharged from the adsorption section and enters the carbon dioxide collection section through vacuum pump 603 for storage, for subsequent use.
[0047] Multiple sets of generating tubes are installed, and the inner diameter of each set of generating tubes is reduced to further increase the pyrolysis efficiency of the pyrolysis gas. The pressure swing adsorption tower 602 can not only separate hydrogen and carbon dioxide, but also collect hydrogen and carbon dioxide separately, further completing the resource utilization treatment of solid waste.
[0048] 13x zeolite molecular sieves can adsorb carbon dioxide from gases during the high-pressure stage and release the adsorbed carbon dioxide during the low-pressure stage. The specific working principle of the carbon dioxide removal module is as follows: Compressor 601 delivers pyrolysis gas mixed with carbon dioxide and hydrogen to the pressure swing adsorption (PSA) tower 602. The PSA tower 602 operates under high pressure. Under this pressure, carbon dioxide in the pyrolysis gas is adsorbed in the adsorption section (13x zeolite molecular sieve), while hydrogen enters the hydrogen delivery pipe through the outlet connected to the hydrogen delivery pipe on the PSA tower 602, completing hydrogen collection. The hydrogen delivery pipe is equipped with a switch. When the adsorption section reaches saturation, the hydrogen delivery pipe is closed, and vacuum pump 603 evacuates the interior of the PSA tower 602. At this time, the carbon dioxide adsorbed on the adsorption section is discharged from the adsorption section and enters the carbon dioxide collection section through vacuum pump 603 for storage, for later use. The PSA tower 602 not only separates carbon dioxide and hydrogen but also collects them separately for convenient subsequent use.
[0049] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.
[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A waste pyrolysis hydrogen production system, characterized in that: The system includes a controller and sequentially connected feeding module (1), pyrolysis module (2), dust removal module (3), tar removal catalytic module (4), hydrogen production module (5), and carbon dioxide removal module (6). The feeding module (1) is used to feed materials to the pyrolysis module (2). The pyrolysis module (2) is used to pyrolyze the materials to obtain pyrolysis gas. The dust removal module (3) can remove impurities in the pyrolysis gas. The tar removal catalytic module (4) is used to decompose the large molecular gas in the pyrolysis gas into small molecular gas, including carbon monoxide, carbon dioxide, hydrogen, and methane. The hydrogen production module (5) is used to convert carbon monoxide and methane in the small molecular gas into hydrogen and carbon dioxide. The carbon dioxide removal module (6) is used to absorb carbon dioxide in the small molecular gas. The controller is connected to the feeding module (1), pyrolysis module (2), dust removal module (3), tar removal catalytic module (4), hydrogen production module (5), and carbon dioxide removal module (6).
2. The waste pyrolysis hydrogen production system as described in claim 1, characterized in that: The feeding module (1) includes a storage bin (101) and a feeding section (102), with the two ends of the feeding section (102) connected to the storage bin (101) and the feeding end of the pyrolysis module (2), respectively.
3. The waste pyrolysis hydrogen production system according to claim 1, characterized in that: The pyrolysis module (2) includes a pyrolysis device (201) and a slag collection device (202). The pyrolysis device (201) has a feeding belt (203) inside. The two ends of the feeding belt (203) are located at the feed end and the discharge end of the pyrolysis device (201) respectively. The slag collection device (202) is connected to the discharge end of the pyrolysis device (201). The discharge end of the pyrolysis device (201) is also connected to the dust removal module (3).
4. The waste pyrolysis hydrogen production system according to claim 3, characterized in that: The pyrolysis device (201) includes a first heating chamber (211), a second heating chamber (212), and a third heating chamber (213) connected in sequence. The feeding belt (203) is located at the bottom of the first heating chamber (211), the second heating chamber (212), and the third heating chamber (213). The feeding module (1) is connected to the first heating chamber (211), and the slag collection device (202) is connected to the third heating chamber (213). The temperature in the first heating chamber (211) is 300-400℃; the temperature in the second heating chamber (212) is 500-700℃; and the temperature in the third heating chamber (213) is 800-900℃.
5. The waste pyrolysis hydrogen production system according to claim 1, characterized in that: It also includes a steam generator (7) that can provide water vapor, the outlet of which is connected to the feed end of the detar catalytic module (4) and the feed end of the hydrogen production module (5).
6. The waste pyrolysis hydrogen production system according to claim 5, characterized in that: The tar removal catalytic module (4) includes a generating tube, a first heating unit is installed inside the generating tube, the inner cavity of the generating tube is filled with a catalyst, the feed end of the generating tube is connected to the steam generator (7) and the dust removal module (3), and the discharge end of the generating tube is connected to the hydrogen production module (5).
7. The waste pyrolysis hydrogen production system according to claim 6, characterized in that: There are several generating tubes, and the feed ends of the several generating tubes are all connected to the steam generator (7) and the dust removal module (3), and the discharge ends are all connected to the hydrogen production module (5).
8. The waste pyrolysis hydrogen production system according to claim 5, characterized in that: The hydrogen production module (5) includes a reaction tube, a second heating unit is installed inside the reaction tube, the feed end of the reaction tube is connected to the steam generator (7) and the discharge end of the tar removal catalytic module (4), and the discharge end of the reaction tube is connected to the carbon dioxide removal module (6).
9. The waste pyrolysis hydrogen production system according to claim 1, characterized in that: The carbon dioxide removal module (6) includes a compressor (601), a pressure swing adsorption tower (602), and a vacuum pump (603). The feed end of the compressor (601) is connected to the discharge end of the hydrogen production module (5). The discharge end of the compressor (601) is connected to the feed end of the pressure swing adsorption tower (602). The vacuum pump (603) is connected to the discharge end of the pressure swing adsorption tower (602). The discharge end of the pressure swing adsorption tower (602) is also connected to a hydrogen guide pipe. The other end of the vacuum pump (603) is connected to a carbon dioxide collection section. The pressure swing adsorption tower (602) is filled with an adsorption section that can adsorb carbon dioxide.
10. The waste pyrolysis hydrogen production system according to claim 9, characterized in that: The adsorption section is a 13x zeolite molecular sieve.