Coke oven syngas generator and syngas preparation method

Abstract

This application provides a coking oven syngas generator and a syngas preparation method. The coking oven syngas generator includes a carbonization chamber, a reforming chamber, and a heat-conducting structure. The carbonization chamber is used to carbonize coking coal and produce raw coal gas. The reforming chamber is arranged adjacent to the carbonization chamber and is used to receive the raw coal gas produced by the carbonization chamber. The reforming chamber is provided with an oxygen inlet for supplying oxygen into the reforming chamber. The reforming chamber is configured such that the oxygen and the raw coal gas undergo an incomplete combustion reforming reaction inside it to generate syngas and release heat. The heat-conducting structure is disposed between the carbonization chamber and the reforming chamber, and is used to conduct the heat from the reforming chamber to the carbonization chamber to heat the carbonization chamber.

Description

Technical Field

[0001] This application relates to the field of energy and chemical technology, and in particular to a coking oven syngas generator and a syngas preparation method. Background Technology

[0002] Currently, industrial coking mainly adopts two technical routes: chemical product recovery coke ovens and heat recovery coke ovens. The core structure of a chemical product recovery coke oven includes a carbonization chamber and a combustion chamber. Coal is dry-distilled in the sealed carbonization chamber in the absence of air, and the resulting raw coal gas is entirely extracted from the furnace system. Coal tar, crude benzene, ammonia, and other chemical products are then recovered, yielding purified coke oven gas. A portion of this purified gas is returned to the combustion chamber for combustion, providing heat for coking in the carbonization chamber. This process generates significant pollutant emissions during coal charging and coke pushing, and the high-quality thermal energy of the high-temperature raw coal gas is degraded and lost, resulting in low system thermal efficiency.

[0003] The raw coal gas produced by the heat recovery coke oven is completely burned in the combustion chamber to recover heat energy for power generation. However, the raw coal gas is burned entirely as ordinary fuel, which wastes its high-value chemical components and results in poor economic efficiency in resource utilization.

[0004] This invention proposes a novel coking oven syngas generator and syngas preparation method. By reforming all raw coal gas to heat the carbonization chamber and recovering the chemical products from the reformed syngas, it achieves the coordinated production of heat, electricity, and chemical products, providing a clean, efficient, and resource-efficient new technological direction for the coking industry. Summary of the Invention

[0005] This application provides a coking oven syngas generator and a syngas preparation method.

[0006] A first aspect of this application provides a coking oven syngas generator, the coking oven syngas generator including a carbonization chamber, a reforming chamber and a heat-conducting structure; The carbonization chamber is used to carbonize coking coal and produce raw coal gas; The reforming chamber is arranged adjacent to the carbonization chamber and is used to receive the raw coal gas produced by the carbonization chamber; the reforming chamber is provided with an oxygen inlet for supplying oxygen into the reforming chamber; the reforming chamber is configured such that the oxygen and the raw coal gas undergo an incomplete combustion reforming reaction inside it to generate syngas and release heat. The heat-conducting structure is disposed between the carbonization chamber and the reforming chamber, and is used to conduct heat from the reforming chamber to the carbonization chamber to heat the carbonization chamber.

[0007] In some embodiments, the heat-conducting structure includes a partition wall, the upper part of which has a raw coal gas crossing opening, through which all the raw coal gas generated in the carbonization chamber enters the reforming chamber; The heat generated in the reforming chamber is transferred to the carbonization chamber through the partition wall, thereby heating the carbonization chamber.

[0008] In some embodiments, the reforming chamber is provided with at least one vertical flue, which extends along the height direction of the reforming chamber; the oxygen inlet is located on the side of the vertical flue.

[0009] In some embodiments, the number of oxygen inlets is multiple, and the multiple oxygen inlets are evenly spaced along the height direction of the vertical flue.

[0010] In some embodiments, the coking oven syngas generator further includes a preheating chamber and a connecting channel; the preheating chamber is located below the carbonization chamber; the preheating chamber is connected to the oxygen inlet through the connecting channel; The preheating chamber is equipped with an oxygen inlet. The oxygen enters the preheating chamber through the oxygen inlet, is preheated, and then enters the reforming chamber through the oxygen inlet.

[0011] In some embodiments, the coke oven syngas generator includes at least one carbonization chamber and at least two reforming chambers, with one carbonization chamber located between two adjacent reforming chambers.

[0012] In some embodiments, the coke oven syngas generator further includes a control component; the control component includes a temperature sensor and an oxygen flow control valve; The temperature sensors are evenly spaced along the height of the reforming chamber to detect the temperature distribution within the reforming chamber; there are multiple oxygen inlets, which are evenly spaced along the height of the reforming chamber; the oxygen flow control valve is connected to each oxygen inlet to regulate the oxygen flow rate of each oxygen inlet according to the temperature distribution within the reforming chamber.

[0013] In some embodiments, the coking oven syngas generator further includes a negative pressure control system, which includes an induced draft fan for making the negative pressure value in the reforming chamber lower than the negative pressure value in the carbonization chamber.

[0014] In some embodiments, the coke oven syngas generating unit further includes a syngas treatment system, which includes a waste heat boiler, a steam turbine, a dust removal device, and a deacidification device; the waste heat boiler is connected to the reforming chamber and is used to introduce the syngas and generate steam; the steam turbine is used to introduce the steam and generate electricity; the dust removal device is used to remove dust from the syngas; and the deacidification device is used to remove hydrogen sulfide, carbon dioxide, and water from the syngas.

[0015] A second aspect of this application provides a method for preparing syngas, which utilizes the aforementioned coke oven syngas generator to prepare syngas, the method comprising: Coking coal is filled into the carbonization chamber, the carbonization chamber is actively heated, the coking coal is carbonized in the carbonization chamber to produce raw coal gas, and all the raw coal gas is introduced into the reforming chamber adjacent to the carbonization chamber. Oxygen is supplied to the reforming chamber through the oxygen inlet, so that the oxygen reacts with the raw coal gas in the reforming chamber to generate syngas and release heat. Active heating of the carbonization chamber is stopped, and the heat generated in the reforming chamber is transferred to the carbonization chamber using the heat-conducting structure, providing a heat source for the subsequent carbonization process of the coking coal in the carbonization chamber.

[0016] The coking oven syngas generator provided in this application directly feeds the heat released from the reforming reaction in the reforming chamber back to the carbonization chamber, realizing the recovery and reuse of waste heat from the reaction. This reduces the direct loss of heat energy from the coking oven, significantly improves thermal energy utilization efficiency, and substantially reduces energy waste. After actively heating the carbonization chamber in the initial stage, there is no need to introduce an additional external heat source to meet the coal chemical needs, reducing additional energy consumption in the production process, improving economic efficiency, and meeting the development needs of the green and low-carbon transformation of modern coal chemical and clean energy industries.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0019] Figure 1 This is a schematic diagram of the structure of a coking oven syngas generator provided in an embodiment of this application. Detailed Implementation

[0020] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0021] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0022] The coking oven syngas generator and syngas preparation method according to embodiments of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementation methods can complement or combine with each other.

[0023] This application provides a coking oven syngas generator, such as... Figure 1 As shown, the coking oven syngas generator includes a carbonization chamber 10, a reforming chamber 20, and a heat-conducting structure 30.

[0024] The carbonization chamber 10 is used to carbonize coking coal and produce raw coal gas.

[0025] The reforming chamber 20 is located adjacent to the carbonization chamber 10, and the reforming chamber 20 is used to receive the raw coal gas produced by the carbonization chamber 10. The reforming chamber 20 is provided with an oxygen inlet 21 for supplying oxygen into the reforming chamber 20.

[0026] The reforming chamber 20 is configured to allow oxygen and raw coal gas to undergo an incomplete combustion reforming reaction inside, generating syngas and releasing heat.

[0027] A heat-conducting structure 30 is disposed between the carbonization chamber 10 and the reforming chamber 20. The heat-conducting structure 30 is used to conduct heat from the reforming chamber 20 to the carbonization chamber 10 to heat the carbonization chamber 10.

[0028] The carbonization chamber 10 is filled with coking coal, which is used to carbonize the coking coal and produce raw coal gas. All the raw coal gas is directly transported to the reforming chamber 20, which is located adjacent to the carbonization chamber 10. After oxygen is introduced into the oxygen inlet 21 of the reforming chamber 20, the raw coal gas and oxygen undergo a reforming reaction in the reforming chamber 20 to generate syngas. The heat energy released during the reforming reaction is not directly dissipated, but is transferred through the adjacent layout of the reforming chamber 20 and the carbonization chamber 10 using the heat-conducting structure 30. In other words, the heat generated by the reforming reaction can be used to provide the heat source required for the coking coal carbonization process in the carbonization chamber 10.

[0029] It should be noted that before the reforming reaction occurs in the reforming chamber 20, the carbonization chamber 10 needs to be actively heated to reach the temperature required for coking coal. Once the raw coal gas produced in the carbonization chamber 10 enters the reforming chamber 20 and undergoes a reforming reaction with oxygen, the heat generated by the reforming reaction is sufficient to meet the subsequent carbonization requirements of the carbonization chamber 10 for coking coal. At this point, the active heating of the carbonization chamber 10 can be stopped.

[0030] The coking oven syngas generator provided in this application embodiment directly feeds the heat released by the reforming reaction in the reforming chamber 20 back to the carbonization chamber 10, realizing the recovery and reuse of reaction waste heat, reducing the direct loss of coking oven heat energy, greatly improving heat energy utilization efficiency, and significantly reducing energy waste.

[0031] After the carbonization chamber 10 is actively heated in the initial stage, the coking coal needs can be met without the need to introduce an additional external heat source. This reduces the additional energy consumption input in the production process, improves economic efficiency, and meets the development needs of the green and low-carbon transformation of the modern coal chemical and clean energy industries.

[0032] In one embodiment, such as Figure 1 As shown, the coking oven syngas generator includes at least one carbonization chamber 10 and at least two reforming chambers 20, with a carbonization chamber 10 located between two adjacent reforming chambers 20.

[0033] After coking coal is filled into the carbonization chamber 10, it is actively heated in the initial stage to reach the coking coal carbonization temperature and produce raw coal gas. All the raw coal gas is transported to the adjacent reforming chambers 20 on both sides. Reforming reactions occur in each reforming chamber 20, releasing a large amount of heat.

[0034] The reforming chambers 20 on both sides can conduct heat to the carbonization chamber 10 in the middle through the heat conduction structure 30, so that the carbonization chamber 10 receives more uniform and sufficient heat supply, avoiding the problem of insufficient local temperature or uneven heating in the carbonization chamber 10. This is conducive to improving the stability and thoroughness of the coking coal reaction, thereby improving the product quality of raw coal gas and subsequent syngas.

[0035] In one embodiment, such as Figure 1 As shown, the heat-conducting structure 30 includes a partition wall 31, and a raw coal gas crossing port 32 is provided at the upper part of the partition wall 31. The raw coal gas generated in the carbonization chamber 10 enters the reforming chamber 20 through the raw coal gas crossing port 32. The heat generated in the reforming chamber 20 is transferred to the carbonization chamber 10 through the partition wall 31 to heat the carbonization chamber 10.

[0036] The partition wall 31 not only physically separates the carbonization chamber 10 from the reforming chamber 20, preventing the disorderly mixing of the raw coal gas produced in the carbonization chamber 10 and the syngas produced in the reforming chamber 20, but also ensures, through the raw coal gas crossing port 32 at its upper part, that almost all of the raw coal gas produced in the carbonization chamber 10 is introduced into the adjacent reforming chamber 20. At the same time, the partition wall 31 acts as a heat conduction carrier, transferring the heat energy released by the reforming reaction in the reforming chamber 20 to the carbonization chamber 10 through the partition wall 31, thus efficiently utilizing the heat generated by reforming.

[0037] In one embodiment, such as Figure 1 As shown, at least one vertical flue 22 is provided in the reforming chamber 20. The vertical flue 22 extends along the height direction of the reforming chamber 20, and the oxygen inlet 21 is opened on the side of the vertical flue 22.

[0038] The vertical flue 22 extends along the height of the reforming chamber 20, guiding the raw coal gas and oxygen to fully contact and mix along the height of the reforming chamber 20, significantly improving the conversion rate of the reforming reaction and helping to ensure the yield and component stability of the syngas. The vertical flue 22 also provides a flow channel for the syngas, facilitating the transportation of the generated syngas from inside the reforming chamber 20 to the outside.

[0039] In one embodiment, such as Figure 1 As shown, there are multiple oxygen inlets 21, which are evenly spaced along the height of the vertical flue 22. These multiple oxygen inlets 21, distributed along the height of the vertical flue 22, can simultaneously deliver oxygen to different height areas within the flue 22, achieving uniform oxygen distribution within the flue 22, ensuring thorough mixing of raw coal gas and oxygen, and significantly improving the overall conversion rate of the reforming reaction.

[0040] Furthermore, through the above-mentioned setup, the heat released by the reforming reaction can be evenly released along the height of the vertical flue, avoiding local overheating or uneven heat distribution, which helps to make the heat transferred to the carbonization chamber 10 more stable and balanced.

[0041] In one embodiment, such as Figure 1As shown, the coking oven syngas generator also includes a preheating chamber 40 and a connecting channel 50. The preheating chamber 40 is located below the carbonization chamber 10 and is connected to the oxygen inlet 21 via the connecting channel 50. The preheating chamber 40 is equipped with an oxygen inlet 41. After being preheated, oxygen enters the preheating chamber 40 through the oxygen inlet 41 and then enters the reforming chamber 20 through the oxygen inlet 21.

[0042] The reforming reaction occurs in the reforming chamber 20. The high-temperature synthesis gas produced by the reaction passes through the preheating chamber, which can store heat in the preheating chamber. After being preheated in the preheating chamber 40, the oxygen enters the reforming chamber 20 through the connecting channel 50, which can increase the temperature of the oxygen and make efficient use of heat. This avoids the temperature drop in the reforming chamber 20 caused by the direct introduction of low-temperature oxygen, which is conducive to maintaining the stability of the reaction temperature inside the reforming chamber 20.

[0043] In one embodiment, such as Figure 1 As shown, the connecting channel 50 is arc-shaped, allowing soot and other contaminants to be smoothly discharged from the connecting channel 50, thus preventing the connecting channel 50 from being blocked by soot.

[0044] In one embodiment, the coke oven syngas generator further includes a control component. The control component includes a temperature sensor and an oxygen flow control valve.

[0045] Temperature sensors are evenly spaced along the height of the reforming chamber 20 to detect the temperature distribution within the reforming chamber 20. Oxygen flow control valves are connected to oxygen inlets 21 to regulate the oxygen flow rate at each oxygen inlet 21 based on the temperature distribution within the reforming chamber 20 or the compositional distribution of the syngas in the reforming products.

[0046] When the temperature sensor detects that the temperature in a certain area of ​​the reforming chamber 20 is too high, the corresponding flow control valve can reduce the oxygen supply to decrease the intensity of the local reforming reaction and reduce heat release. When the temperature sensor detects that the temperature in a certain area of ​​the reforming chamber 20 is too low, the corresponding flow control valve can increase the oxygen supply to intensify the local reaction and increase heat release. This achieves temperature regulation within the reforming chamber 20, which is beneficial for improving the stability of syngas production and the uniformity of its composition.

[0047] In one embodiment, the coke oven syngas generator can obtain oxygen using oxygen-generating devices such as cryogenic air separation units and pressure swing adsorption units.

[0048] In one embodiment, the coking oven syngas generator further includes a negative pressure control system, which includes an induced draft fan used to lower the negative pressure value in the reforming chamber 20 to the negative pressure value in the carbonization chamber 10.

[0049] When the induced draft fan is running, the negative pressure value inside the reforming chamber 20 can be adjusted to be lower than that inside the carbonization chamber 10. Based on the pressure difference, a directional airflow driving force is formed, which enables the raw coal gas generated in the carbonization chamber 10 to be quickly transported to the reforming chamber 20 through the raw coal gas crossing port 32, thus avoiding the retention of raw coal gas due to pressure balance or local resistance.

[0050] In one embodiment, such as Figure 1 As shown, the coking oven syngas generator also includes a branch flue 61 located below the preheating chamber 40, and a main flue 62 located below the branch flue 61. Syngas generated in the reforming chamber 20 enters the preheating chamber 40 through the connecting channel 50, and then enters the branch flue 61 through the preheating chamber 40. The branch flue 61 prevents the discharged syngas from spreading disorderly within the unit, preventing syngas backflow from interfering with the reaction environment of the reforming and carbonization chambers. The main flue 62 is connected to the branch flue 61, allowing the syngas in each branch flue 61 to be collected and centrally output.

[0051] In one embodiment, such as Figure 1 As shown, the coke oven syngas generator also includes a syngas processing system 70, which comprises a waste heat boiler 71 and a steam turbine 72. The waste heat boiler 71 is connected to the reforming chamber 20 and is used to introduce syngas and generate steam. The steam turbine 72 is used to introduce steam and generate electricity.

[0052] Waste heat boiler 71 can use the waste heat carried in syngas to convert water into steam, and steam turbine 72 uses steam to generate electricity, thereby converting the heat that would otherwise be lost with the syngas into usable electricity, improving the energy utilization efficiency of the coking oven syngas generator and further reducing energy waste.

[0053] In one embodiment, such as Figure 1 As shown, the syngas treatment system includes a dust removal device 73 and a deacidification device 74. The dust removal device 73 is used to remove dust from the syngas. The deacidification device 74 is used to remove hydrogen sulfide, carbon dioxide, and water from the syngas.

[0054] Dust removal devices can remove dust and impurities from syngas, preventing dust from entering subsequent deacidification units or pipelines and causing blockages, while also reducing the impact of dust on subsequent processes. Deacidification units can remove hydrogen sulfide, carbon dioxide, and water from syngas, which helps improve the purity and component stability of the syngas. This allows the purified syngas to be directly used as raw material for the subsequent production of basic chemical products such as methanol, olefins, and ammonia, improving product conversion rates and quality.

[0055] Specifically, dust removal devices can be, for example, electrostatic precipitators, bag filters, cyclone separators, etc.

[0056] In one embodiment, such as Figure 1 As shown, the coke oven syngas generator also includes a syngas conversion system 80. The syngas desorbed by the deacidification unit 74 is transported to the syngas conversion system, which can convert the syngas into chemical products such as methanol, hydrocarbon fuels, and ammonia. The syngas conversion system 80 can be, for example, one or more of a methanol synthesis system, a Fischer-Tropsch synthesis system, an ammonia synthesis system, or a hydrogen production system.

[0057] This application also provides a method for preparing syngas, which utilizes the aforementioned coke oven syngas generator to prepare syngas. The preparation method includes: Coking coal is filled into the carbonization chamber 10, and the carbonization chamber 10 is actively heated. The coking coal is carbonized in the carbonization chamber 10 to produce raw coal gas, and all the raw coal gas is introduced into the reforming chamber 20 adjacent to the carbonization chamber 10.

[0058] Oxygen is supplied into the reforming chamber 20 through the oxygen inlet 21, so that the oxygen and raw coal gas undergo a reforming reaction in the reforming chamber 20 to generate syngas and release heat.

[0059] Active heating of the carbonization chamber 10 is stopped, and the heat generated in the reforming chamber 20 is transferred to the carbonization chamber 10 by the heat conduction structure 30, so as to provide a heat source for the subsequent carbonization process of the coking coal in the carbonization chamber 10.

[0060] Utilizing the heat generated in the reforming chamber to provide a heat source for the subsequent carbonization process of coking coal in the carbonization chamber can reduce energy consumption in the coking coal carbonization process and significantly improve resource utilization efficiency in the syngas production process. Secondly, all raw coal gas is introduced into the reforming chamber to participate in the reaction, which improves the utilization rate of raw materials, reduces raw material waste, and increases the yield of syngas.

[0061] After purification, the resulting syngas has high purity and low impurity content, and can be directly used as a raw material for downstream conversion systems such as methanol, reducing the difficulty and cost of subsequent product processing.

[0062] Taking methanol production from syngas as an example, based on an annual coke production scale of 1.5 million tons, this application also simulated and calculated the changes in the material and calorific value before and after the reaction in the reforming chamber of the coking oven syngas generator (see Table 1), and calculated the input, output and efficiency of the coking oven syngas generator (see Table 2, with a water content of 10.44 wt% in the raw coal). The specific data are as follows: Table 1 Table 2 The distribution of coking products in coke ovens in related technologies, used as a comparison, was simulated and calculated (see Table 3). The input, output, and efficiency of coke ovens in related technologies were also calculated (see Table 4). Specific data are as follows: Table 3 Table 4 As shown in the table above, the coke oven syngas generator of this application has high energy efficiency. After the raw coal gas undergoes reforming, the organic components such as tar can be completely converted into syngas components at 1200℃ and under pure oxygen conditions. Furthermore, the H2 / CO ratio in the syngas components is close to 2, making it directly usable in downstream processes such as methanol synthesis or Fischer-Tropsch synthesis. The heat released by the pure oxygen reforming of the entire raw coal gas generated in the carbonization chamber can meet the heat requirements of the carbonization chamber, significantly improving thermal energy utilization efficiency and reducing energy waste.

[0063] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A coke oven syngas generator, characterized in that, The coking oven syngas generator includes a carbonization chamber, a reforming chamber, and a heat-conducting structure; The carbonization chamber is used to carbonize coking coal and produce raw coal gas; The reforming chamber is arranged adjacent to the carbonization chamber and is used to receive the raw coal gas produced by the carbonization chamber; the reforming chamber is provided with an oxygen inlet for supplying oxygen into the reforming chamber; the reforming chamber is configured such that the oxygen and the raw coal gas undergo an incomplete combustion reforming reaction inside it to generate syngas and release heat. The heat-conducting structure is disposed between the carbonization chamber and the reforming chamber, and is used to conduct heat from the reforming chamber to the carbonization chamber to heat the carbonization chamber.

2. The coking oven syngas generator according to claim 1, characterized in that, The heat-conducting structure includes a partition wall, and a raw coal gas crossing port is opened at the upper part of the partition wall. The raw coal gas generated in the carbonization chamber enters the reforming chamber through the raw coal gas crossing port. The heat generated in the reforming chamber is transferred to the carbonization chamber through the partition wall, thereby heating the carbonization chamber.

3. The coking oven syngas generator according to claim 1, characterized in that, The reforming chamber is provided with at least one vertical flue, which extends along the height of the reforming chamber; the oxygen inlet is located on the side of the vertical flue.

4. The coking oven syngas generator according to claim 3, characterized in that, The number of oxygen inlets is multiple, and the multiple oxygen inlets are evenly spaced along the height direction of the vertical flue.

5. The coking oven syngas generator according to claim 1, characterized in that, The coking oven syngas generator also includes a preheating chamber and a connecting channel; the preheating chamber is located below the carbonization chamber; the preheating chamber is connected to the oxygen inlet through the connecting channel; The preheating chamber is equipped with an oxygen inlet. The oxygen enters the preheating chamber through the oxygen inlet, is preheated, and then enters the reforming chamber through the oxygen inlet.

6. The coking oven syngas generator according to claim 1, characterized in that, The coke oven syngas generator includes at least one carbonization chamber and at least two reforming chambers, with one carbonization chamber located between two adjacent reforming chambers.

7. The coking oven syngas generator according to claim 1, characterized in that, The coke oven syngas generator also includes a control component; the control component includes a temperature sensor and an oxygen flow control valve. The temperature sensors are evenly spaced along the height of the reforming chamber to detect the temperature distribution within the reforming chamber; there are multiple oxygen inlets, which are evenly spaced along the height of the reforming chamber; the oxygen flow control valve is connected to each oxygen inlet to regulate the oxygen flow rate of each oxygen inlet according to the temperature distribution within the reforming chamber.

8. The coking oven syngas generator according to claim 1, characterized in that, The coking oven syngas generator also includes a negative pressure control system, which includes an induced draft fan. The induced draft fan is used to make the negative pressure value in the reforming chamber lower than the negative pressure value in the carbonization chamber.

9. The coking oven syngas generator according to claim 1, characterized in that, The coke oven syngas generating unit also includes a syngas treatment system, which includes a waste heat boiler, a steam turbine, a dust removal device, and a deacidification device. The waste heat boiler is connected to the reforming chamber and is used to introduce the syngas and generate steam. The steam turbine is used to introduce the steam and generate electricity. The dust removal device is used to remove dust from the syngas. The deacidification device is used to remove hydrogen sulfide, carbon dioxide, and water from the syngas.

10. A method for preparing syngas, comprising preparing syngas using a coke oven syngas generator as described in any one of claims 1 to 9, characterized in that, The preparation method includes: Coking coal is filled into the carbonization chamber, the carbonization chamber is actively heated, the coking coal is carbonized in the carbonization chamber to produce raw coal gas, and all the raw coal gas is introduced into the reforming chamber adjacent to the carbonization chamber. Oxygen is supplied to the reforming chamber through the oxygen inlet, so that the oxygen reacts with the raw coal gas in the reforming chamber to generate syngas and release heat. Active heating of the carbonization chamber is stopped, and the heat generated in the reforming chamber is transferred to the carbonization chamber using the heat-conducting structure, providing a heat source for the subsequent carbonization process of the coking coal in the carbonization chamber.

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