Coal dry distillation power generation and green coal synthesis integrated system

Abstract

The utility model provides a coal dry distillation power generation and green coal synthesis integrated system. The system comprises a coal dry distillation module, an oxygen-fuel combustion power generation module, a hydrogen and oxygen production module and a green coal oil gas synthesis module. The coal dry distillation module is used for dry distillation of coal and can generate low-temperature dry distillation oil gas, medium-high-temperature coal gas, high-temperature coal tar and semicoke. Hydrogen generated by the coal dry distillation module and the hydrogen and oxygen production module is configured to be conveyed to the green coal oil gas synthesis module, and CO2 generated by the coal dry distillation module and the oxygen-fuel combustion power generation module is configured to be conveyed to the green coal oil gas synthesis module. Low-temperature dry distillation oil gas and semicoke generated by the coal dry distillation module, oxygen generated by the hydrogen and oxygen production module and coal gas generated by the green coal oil gas synthesis module are configured to be conveyed to the oxygen-fuel combustion power generation module, so that power is generated on the basis of oxygen-fuel combustion.

Description

Technical Field

[0001] The present application relates to the fields of coal, chemical industry and power generation, and in particular to coal dry distillation technology, full oxygen combustion technology, green coal synthesis and hydrogen and oxygen production technology equipment, and specifically to an integrated system of coal dry distillation power generation and green coal synthesis. Background Art

[0002] Clean and efficient utilization of coal and vigorous development of oil, gas, and new energy have become technological trends. However, current coal utilization technology, oil, gas, and new energy technologies still have some problems, such as:

[0003] (1) Coal utilization technologies (such as direct combustion thermal power generation, gasification, etc.) have low power generation efficiency and high greenhouse gas emissions. Carbon emissions account for more than 40% of the total, causing serious environmental pollution.

[0004] (2) Currently, China relies on imports for most of its oil and gas. However, oil and natural gas have strong regional characteristics and are difficult to transport. International transportation, in particular, is affected by various international factors and poses major safety risks.

[0005] (3) New energy is a major force in power generation, but its volatility is very high, and energy storage, especially new energy storage, plays a very limited role. Therefore, the energy storage problem must be solved in order to effectively and vigorously develop new energy.

[0006] (4) The technology for synthesizing green aviation kerosene has been industrialized, and has a broad market and high prices. For example, its price is more than three times that of traditional kerosene. However, its global production is still insufficient, and the production cost of green coal limits the scale of development.

[0007] In addition, in terms of the actual utilization of various energy sources, there are problems such as the inability to organically combine various energy sources and effectively utilize them in an integrated manner, for example:

[0008] (1) There are places where new energy sources can produce hydrogen and synthesize oil, gas and chemical raw materials with CO2, but CO2 cannot be obtained, or cheap CO2 can only be transported to other remote areas, which has high transportation costs.

[0009] (2) Many manufacturing companies, especially power plants, use traditional energy and emit large amounts of CO2. Some of them may have to pay carbon taxes. Utility Model Content

[0010] In order to solve or alleviate at least one technical problem raised by the background technology, the present application provides an integrated system for coal dry distillation power generation and green coal synthesis.

[0011] The integrated system of coal dry distillation power generation and green coal synthesis provided in the embodiment of the present application includes:

[0012] A coal dry distillation module, which is used to dry distill coal and can produce low-temperature dry distillation oil and gas, medium- and high-temperature coal gas, high-temperature coal tar and semi-coke, wherein the low-temperature dry distillation oil and gas include low-temperature coal tar and low-temperature coal gas, and the medium- and high-temperature coal gas includes hydrogen;

[0013] Oxygen-fuel combustion power generation module, used for combustion power generation and capable of recovering CO2;

[0014] Hydrogen and oxygen production modules, used to produce hydrogen and oxygen;

[0015] Green kerosene oil and gas synthesis module, used to synthesize green aviation kerosene or kerosene, gasoline, natural gas, methanol, and can produce coal gas,

[0016] The hydrogen produced by the coal dry distillation module and the hydrogen and oxygen production module is configured to be transported to the green coal oil and gas synthesis module, and the CO2 produced by the coal dry distillation module and the full oxygen combustion power generation module is configured to be transported to the green coal oil and gas synthesis module.

[0017] The low-temperature dry distillation oil and gas, semi-coke produced by the coal dry distillation module, the oxygen produced by the hydrogen and oxygen production module, and the coal gas produced by the green coal oil and gas synthesis module are configured to be transported to the full oxygen combustion power generation module, so that power generation is achieved based on full oxygen combustion.

[0018] In at least one embodiment, the coal dry distillation module includes a two-stage three-stage rotary kiln, which enables drying and low- and high-temperature dry distillation of the raw coal.

[0019] In at least one embodiment, the integrated coal dry distillation power generation and green coal synthesis system also includes a coal tar separator, and the medium- and high-temperature coal gas and the high-temperature coal tar are configured to be transported to the coal tar separator so as to be cooled and separated, and the separated medium- and high-temperature coal gas including the hydrogen is configured to be transported to the green coal synthesis tower for synthesizing green coal in the green coal oil and gas synthesis module.

[0020] In at least one embodiment, the integrated system of coal dry distillation power generation and green coal synthesis further includes a distillation tower, and the high-temperature coal tar is configured to be transported to the distillation tower for distillation.

[0021] In at least one embodiment, the coal dry distillation module further includes a hot blast furnace, and the semi-coke produced by the coal dry distillation module is configured to be transported to the hot blast furnace for full oxygen combustion and used to heat the rotary kiln in the coal dry distillation module, and the generated flue gas is transported to the purification device of the full oxygen combustion power generation module to recover CO2 and / or water.

[0022] In at least one embodiment, a filter is provided in the channel for transporting the low-temperature dry distillation oil gas to the oxy-combustion power generation module, for removing impurities including ash.

[0023] In at least one embodiment, the oxy-combustion power generation module includes a gas turbine, which is used to generate electricity and can produce flue gas.

[0024] In at least one embodiment, the oxy-fuel combustion power generation module further includes a waste heat boiler, and the flue gas generated by the gas turbine is configured to be transported to the waste heat boiler for heat exchange.

[0025] In at least one embodiment, the hydrogen and oxygen production module includes a hydroelectric hydrogen production device, which is configured to be connected to green electricity and off-peak electricity of the power grid, so that the hydrogen and oxygen can be produced by electrolyzing water.

[0026] In at least one embodiment, the hydrogen and oxygen production module further includes an air separation device, which is capable of separating air to produce the oxygen.

[0027] In at least one embodiment, the semi-coke from the coal dry distillation module is transported to the waste heat boiler of the oxy-fuel combustion power generation module for combustion with all oxygen and CO2, or combustion with air.

[0028] This application combines four modules: coal distillation module, full oxygen combustion power generation module, hydrogen and oxygen production module, and green coal oil and gas synthesis module. It deeply couples coal power generation, power grid, hydrogen production, and CO2 recovery and hydrogenation to synthesize oil and gas. It can not only promote the clean development of traditional coal energy and ensure energy security, but also promote the development of new energy and promote economic development, and solve the key problems of clean energy development in a package. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A structural schematic diagram of an integrated system for coal dry distillation power generation and green coal synthesis according to an embodiment of the present application is shown.

[0030] Description of Reference Numerals

[0031] 100 Coal distillation module

[0032] 110 Rotary Kiln

[0033] 120 filters

[0034] 200 Oxygen-combustion power generation module

[0035] 210 gas turbine

[0036] 220 Waste Heat Boiler

[0037] 230 Purification Unit

[0038] 240 steam turbine

[0039] 300 Hydrogen and Oxygen Production Module

[0040] 310 Hydropower hydrogen production device

[0041] 320 Air Separation Unit

[0042] 400 Green Coal Oil and Gas Synthesis Module

[0043] 410 Coal Tar Separator

[0044] 420 Green Coal Synthesis Tower

[0045] 430 distillation tower

[0046] 440 Gasoline Synthesis Tower

[0047] 450 Natural Gas Synthesis Tower DETAILED DESCRIPTION

[0048] The following describes exemplary embodiments of the present application with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present application, and are not intended to exhaust all possible embodiments of the present application, nor to limit the scope of the present application.

[0049] This application provides an integrated system for coal dry distillation power generation and green coal synthesis (hereinafter sometimes referred to as "integrated system"). Figure 1 In one embodiment, the integrated system may include a coal dry distillation module 100, an oxy-combustion power generation module 200, a hydrogen and oxygen production module 300, and a green coal oil and gas synthesis module 400.

[0050] 1. Coal distillation module 100

[0051] The coal dry distillation module 100 may include a rotary kiln 110 , a filter 120 , and a hot air stove.

[0052] The rotary kiln 110 may be a two-stage three-stage rotary kiln 110, which is configured to perform a two-stage three-stage rotary kiln pyrolysis process, performing integrated dry distillation of low-rank coal from low temperature to medium-high temperature, greatly improving energy efficiency.

[0053] More specifically, the first section is the drying section for the raw coal, which makes full use of the low-temperature dry distillation waste gas for drying and dehydration.

[0054] The second section is the dry distillation section, which is divided into low-temperature dry distillation and medium-high temperature dry distillation. Low-temperature dry distillation produces a type of upgraded coal, low-temperature coal gas, and low-temperature coal tar, while medium-high temperature dry distillation produces a type of upgraded coal (high-temperature semi-coke), medium-high temperature coal gas, and high-temperature coal tar. It can be understood that the low temperature during the coal dry distillation process can be 500-600°C. The medium temperature can be 700-900°C, and the high temperature can be 900-1100°C. Medium and high temperatures include medium and high temperatures. Low and high temperatures (see below) include low and medium and high temperatures.

[0055] Class I upgraded coal can be further carbonized to form Class II upgraded coal, medium and high temperature coal gas and high temperature coal tar.

[0056] Low-temperature retorted oil gas (low-temperature coal gas and low-temperature coal tar are collectively referred to as low-temperature retorted oil gas) passes through filter 120 at approximately 500°C to remove dust and impurities such as ash (substances containing elements such as alkali metals and silicon), ensuring that it meets the requirements for combustion in gas turbine 210 (an example component of oxy-fuel combustion power generation module 200, described later). Filter 120 can be a ceramic filter.

[0057] A portion of the Class II upgraded coal (18.5% in one example) is burned with full oxygen in a hot blast furnace to heat the rotary kiln 110, and the resulting flue gas is transported to the purification device 230 to recover CO2 and / or water. The remaining Class II upgraded coal can be used for full oxygen combustion in the full oxygen combustion power generation module 200 to generate electricity. Full oxygen combustion in the waste heat boiler 220 of the full oxygen combustion power generation module 200 facilitates low-cost recovery of CO2 and achieves zero emissions (the Class II upgraded coal can be combined with CO2 during full oxygen combustion to facilitate temperature control). The Class II upgraded coal can also be sold directly on the market.

[0058] The CO2 generated by the full oxygen combustion in the waste heat boiler 220 can be synthesized into oil, gas, and chemical products through hydrogenation as described below, or can be sealed and utilized in structures such as oil and gas fields and underground salt caverns.

[0059] The medium and high temperature coal gas contains about 80% hydrogen, and the rest is CO, CH4, CO2 and other gases. After cooling and separation, they can be synthesized with CO2 in the green coal synthesis tower 420 (the green coal synthesis tower 420 can be located in the green coal oil and gas synthesis module 400, which will be introduced later) to synthesize kerosene and other oils and gases.

[0060] High-temperature coal tar mainly includes coal pitch and polycyclic aromatic hydrocarbons, which can be further separated after cooling and separation through a distillation tower 430 (the distillation tower 430 can be located in the green coal oil and gas synthesis module 400, which will be introduced later) to form various products for market sale.

[0061] Kerosene and other oils and gases synthesized from hydrogen in medium and high temperature coal gas and high temperature coal tar can be sold directly on the market, and the by-product coal gas (a by-product of the green coal synthesis tower 420, which will be introduced later) can be used for power generation with a high utilization rate.

[0062] On the whole, clean and efficient utilization of coal according to its grading and quality has been achieved, truly realizing the "full utilization" of coal resources.

[0063] 2. Oxygen-fuel combustion power generation module 200

[0064] The oxygen combustion power generation module may include a gas turbine 210 , a supercharger, a waste heat boiler 220 , and a purification device 230 .

[0065] The low-temperature dry distillation oil and gas from the coal dry distillation module 100 and the by-product coal gas in the green coal oil and gas synthesis module 400 can pass through a supercharger into the steam boiler in the gas turbine 210 for full oxygen combustion power generation. It can be understood that oil and gas can increase the energy density per unit volume and increase efficiency by compression. The power generation efficiency of full oxygen combustion is high, and the product is clean (mainly CO2). The low-temperature dry distillation oil and gas, the second-class upgraded coal, and the by-product coal gas in the green coal oil and gas synthesis module 400 (after the commodity value is "equivalent" replacement with the hydrogen after coal dry distillation and the high-temperature coal tar) can all be regarded as coming from the raw coal itself. It has been calculated that the combined cycle power generation efficiency can reach about 65%.

[0066] The low-temperature retorted oil gas (about 500° C.) can be heat-exchanged with the oxygen from the hydrogen and oxygen production module 300 entering the gas turbine 210 before compression to meet the oil and gas temperature requirement of the gas turbine 210 .

[0067] The flue gas generated by the gas turbine 210 after oxy-fuel combustion can enter the waste heat boiler 220 for waste heat recovery. The flue gas is then separated into pure CO2 and water by the purification device 230, ensuring that the CO2 meets the requirements for entering the green coal oil and gas synthesis module 400. The flue gas can also be cooled by heat exchange with the water to be electrolyzed in the hydrogen and oxygen production module 300 before being purified. The waste heat boiler 220 can also be connected to the steam turbine 240 to further utilize the energy.

[0068] 3. Hydrogen and oxygen production module 300

[0069] The hydrogen and oxygen production module 300 may include a hydropower hydrogen production device 310 and an air separation device 320 .

[0070] The hydroelectric hydrogen production device 310 can generate hydrogen and oxygen as a by-product by electrolysis. The water electrolysis hydrogen production device can operate at a wide load (for example, an efficiency of 20% to 110%). Its electricity comes from the power grid, mainly green electricity, and also off-peak electricity or other non-green electricity. That is, for example, two water electrolysis hydrogen production devices can be set up, one energy source is green electricity, and the other energy source is off-peak electricity or other non-green electricity. It can reduce peak loads and valley filling on a large scale, reduce grid fluctuations, and especially after large-scale promotion, it can solve the problem of energy storage under the new power system.

[0071] The air can also produce oxygen after passing through the air separation device 320. The air separation device 320 can be more specifically an air cryogenic separation device.

[0072] The oxygen generated by the hydropower hydrogen production device 310 and the air separation device 320 can be introduced into the coal dry distillation module 100 and the full oxygen combustion power generation module 200 for full oxygen combustion.

[0073] Of course, storage tanks for storing hydrogen and oxygen may also be provided in the hydrogen and oxygen production module 300 to be able to store and reasonably distribute the output of hydrogen and oxygen.

[0074] 4. Green coal oil and gas synthesis module 400

[0075] There are two processes for green kerosene oil and gas synthesis: one uses biomass as the raw material and supplements it with a certain amount of green hydrogen (or blue hydrogen) to synthesize bio-jet fuel; the other uses captured carbon dioxide as the raw material and synthesizes it by adding carbon dioxide to green hydrogen. This application adopts the second process.

[0076] The green coal oil and gas synthesis module 400 may include a coal tar separator 410 , a green coal synthesis tower 420 , a distillation tower 430 , a gasoline synthesis tower 440 , and a natural gas synthesis tower 450 .

[0077] The coal tar separator 410 can separate the medium-high temperature coal gas and high temperature coal tar from the coal dry distillation module 100 by cooling. The separated medium-high temperature coal gas with hydrogen is transported to the green coal synthesis tower 420, and the high temperature coal tar is separated and transported to the distillation tower 430.

[0078] After passing through the green coal synthesis tower 420, hydrogen and CO2 can be synthesized into green aviation kerosene or kerosene (kerosene can include green aviation kerosene and other types of kerosene), with coal gas (primarily composed of CO, CH4, C2H6, etc.) as a byproduct. Of course, this process also produces blue hydrogen and gray hydrogen. Depending on market demand, hydrogen and CO2 can also be synthesized into substances such as gasoline, natural gas, and methanol in the gasoline synthesis tower 440, the natural gas synthesis tower 450, or other equipment. The byproduct gas from gasoline synthesis can also be fed into the oxy-fuel combustion power generation module 200 for power generation.

[0079] The CO2 is derived from the oxy-fuel combustion in the coal dry distillation module 100 and the oxy-fuel combustion power generation module 200. This makes CO2 easy to recover and process, reducing investment and production costs. Hydrogen is generated by water electrolysis in the hydrogen and oxygen production module 300 and by medium- and high-temperature coal gas in the coal dry distillation module 100. The electricity used in the water electrolysis hydrogen production comes from the power grid, eliminating investment in new energy power generation facilities. The byproduct gas produced during the CO2 hydrogenation synthesis process can also be separated and fed into the oxy-fuel combustion power generation module 200 for oxy-fuel combustion, reducing investment and achieving comprehensive energy utilization.

[0080] This application combines the above four modules, deeply coupling coal-fired power generation, power grid, hydrogen production and CO2 recovery and hydrogenation to synthesize oil and gas.

[0081] It can improve power generation efficiency, reduce investment and costs, lower carbon emissions, mitigate grid fluctuations, solve energy storage issues in new power systems, synthesize green coal, earn lucrative profits, or produce kerosene, gasoline, natural gas, methanol and other products to fill the oil and gas gap and ensure energy security.

[0082] This application can improve the efficiency of coal-fired power generation, reduce CO2 and other pollutant emissions, and especially its carbon emissions are close to those of natural gas-fired power generation, making coal cleaner.

[0083] This application can absorb green electricity such as wind and solar power through the power grid, reduce peak power and fill valley power, solve the problem of energy storage under the new power system, and improve the utilization rate of new energy.

[0084] This application can make CO2 recovery, green electricity hydrogen production, and green coal synthesis as an overall process system, organically combining various parts, thereby reducing investment and green coal production costs, and producing green coal on a large scale to meet the needs of the world's green development; at the same time, it can also economically and efficiently synthesize chemical products such as kerosene, gasoline, natural gas or methanol to ensure energy security.

[0085] Overall, this application can not only promote the clean development of traditional coal energy and ensure energy security, but also promote the development of new energy, promote economic development, and provide a comprehensive solution to the key problems existing in the development of clean energy.

[0086] For an example of a 1 million kilowatt generator set burning 1.8 million tons of low-rank coal per year, the specific evaluation of the integrated system provided in this application is as follows:

[0087] 1. Improve power generation efficiency and reduce carbon emissions

[0088] The project generates 7.6 billion kilowatt-hours of electricity annually, with an efficiency of 65.3%. Each kilowatt-hour consumes 188 grams of standard coal (compared to the current average of 320 grams per kilowatt-hour for thermal power generation), significantly exceeding all existing coal-fired power generation technologies. It also emits 386 grams of CO2 per kilowatt-hour (compared to the current average of 900 grams per kilowatt-hour for thermal power generation), representing a CO2 reduction of over 57%, very close to that of natural gas (which emits an average of 330-350 grams per kilowatt-hour).

[0089] Especially when there is a demand for CO2 around the integrated system, "zero emissions" of thermal power generation can be achieved economically and efficiently.

[0090] 2. Reduce grid fluctuations and solve energy storage issues in new power systems

[0091] By utilizing green power from the grid and off-peak electricity and water electrolysis to produce hydrogen, we can reduce peak loads by at least 1.5 million kilowatts. With the widespread adoption of this application, we will completely resolve the energy storage challenges inherent in new energy grids. This will significantly boost the development of new energy, allowing us to leapfrog the coal-based era and enter the clean energy era.

[0092] 3. Synthesize green coal (oil and gas) to earn huge profits

[0093] For example, the price of green coal in the European market in 2024 is about 20,000 yuan per ton. In this example, 408,500 tons of green coal can be synthesized annually, with a total profit of 3.06 billion yuan per year.

[0094] 4. Production of other oil and gas

[0095] This process can also produce 273,000 tons of kerosene per year, 27,000 tons of high-temperature coal tar per year, and 408,500 tons of green coal per year, for a total of 708,500 tons of oil and gas per year, making it self-sufficient in oil and gas production.

[0096] Finally, this application involves an integrated system of coal distillation power generation and green coal synthesis. The other process parts except power generation can be extended to other coal combustion production enterprises other than thermal power plants to improve energy utilization efficiency, reduce carbon and pollutant emissions, and realize clean coal utilization.

[0097] Furthermore, the integrated system provided by the present application may include the following embodiments.

[0098] In one embodiment, the integrated system includes: a coal distillation module 100, which is used for coal distillation and can produce low-temperature distillation oil and gas (including low-temperature coal tar and low-temperature coal gas), medium- and high-temperature coal gas (mostly hydrogen), high-temperature coal tar and semi-coke; a full-oxygen combustion power generation module 200, which is used for combustion power generation and can recover CO2; a hydrogen and oxygen production module 300, which is used to produce hydrogen and oxygen; a green coal oil and gas synthesis module 400, which is used to synthesize green aviation kerosene or kerosene, gasoline, natural gas, methanol, and can produce coal gas.

[0099] The hydrogen produced by the coal dry distillation module 100 and the hydrogen and oxygen production module 300 is configured to be transported to the green coal oil and gas synthesis module 400, and the CO2 produced by the coal dry distillation module 100 and the full oxygen combustion power generation module 200 is configured to be transported to the green coal oil and gas synthesis module 400.

[0100] The low-temperature dry distillation oil and gas produced by the coal dry distillation module 100, the semi-coke and oxygen produced by the hydrogen and oxygen production module 300, and the coal gas produced by the green coal oil and gas synthesis module 400 are configured to be transported to the full oxygen combustion power generation module 200, so as to generate electricity based on full oxygen combustion.

[0101] In one embodiment, the coal dry distillation module 100 includes a two-stage three-stage rotary kiln 110, which enables drying and low-temperature dry distillation of the raw coal.

[0102] In one embodiment, the integrated system of coal dry distillation power generation and green coal synthesis also includes a coal tar separator 410. The medium- and high-temperature coal gas and high-temperature coal tar generated by the coal dry distillation module 100 are configured to be transported to the coal tar separator 410 so as to be cooled and separated. The separated medium- and high-temperature coal gas including hydrogen is configured to be transported to the green coal synthesis tower 420 for synthesizing green coal in the green coal oil and gas synthesis module 400.

[0103] In one embodiment, the integrated system of coal dry distillation power generation and green coal synthesis further includes a distillation tower 430 , and the high-temperature coal tar is configured to be transported to the distillation tower 430 for distillation.

[0104] In one embodiment, the coal distillation module 100 further includes a hot blast furnace, and the semi-coke produced by the coal distillation module 100 is configured to be transported to the hot blast furnace for full oxygen combustion and used to heat the rotary kiln 110 in the coal distillation module 100, and the generated flue gas is transported to the purification device 230 to recover CO2 and (or) water.

[0105] In one embodiment, a filter 120 is provided in the channel for transporting the low-temperature dry distillation oil gas to the oxy-combustion power generation module 200 to remove impurities such as ash.

[0106] In one embodiment, the oxy-combustion power generation module 200 includes a gas turbine 210 , which is used to generate electricity and can produce flue gas.

[0107] In one embodiment, the oxy-fuel combustion power generation module 200 further includes a waste heat boiler 220 and a purification device 230, with flue gas being transported to the waste heat boiler 220 for heat exchange. In one embodiment, the hydrogen and oxygen production module 300 includes a hydroelectric hydrogen production device 310, which is configured to be connected to green electricity and off-peak electricity from the power grid, enabling the production of hydrogen and oxygen through water electrolysis.

[0108] In one embodiment, the hydrogen and oxygen production module 300 further includes an air separation device 320 , which is capable of separating air to produce oxygen.

[0109] In one embodiment, the semi-coke from the coal dry distillation module 100 may also be combusted with CO 2 or air during the oxy-fuel combustion process in the waste heat boiler 220 of the oxy-fuel combustion power generation module 200 .

[0110] The above is a preferred embodiment of the present application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as within the scope of protection of the present application.

Claims

1. A coal dry distillation power generation and green coal synthesis integrated system, characterized in that: include: A coal dry distillation module, which is used to dry distill coal and can produce low-temperature dry distillation oil and gas, medium- and high-temperature coal gas, high-temperature coal tar and semi-coke, wherein the low-temperature dry distillation oil and gas include low-temperature coal tar and low-temperature coal gas, and the medium- and high-temperature coal gas includes hydrogen; Oxygen-fuel combustion power generation module, used for combustion power generation and capable of recovering CO2; Hydrogen and oxygen production modules, used to produce hydrogen and oxygen; Green kerosene oil and gas synthesis module, used to synthesize green aviation kerosene or kerosene, gasoline, natural gas, methanol, and can produce coal gas, The hydrogen produced by the coal dry distillation module and the hydrogen and oxygen production module is configured to be transported to the green coal oil and gas synthesis module, and the CO2 produced by the coal dry distillation module and the full oxygen combustion power generation module is configured to be transported to the green coal oil and gas synthesis module. The low-temperature dry distillation oil and gas, semi-coke produced by the coal dry distillation module, the oxygen produced by the hydrogen and oxygen production module, and the coal gas produced by the green coal oil and gas synthesis module are configured to be transported to the full oxygen combustion power generation module, so that power generation is achieved based on full oxygen combustion.

2. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The coal dry distillation module includes a two-stage three-stage rotary kiln, which enables the raw coal to be dried and dry distilled at low and high temperatures.

3. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The integrated system of coal dry distillation power generation and green coal synthesis also includes a coal tar separator. The medium- and high-temperature coal gas and the high-temperature coal tar are configured to be transported to the coal tar separator so as to be cooled and separated. The separated medium- and high-temperature coal gas including the hydrogen is configured to be transported to the green coal synthesis tower for synthesizing green coal in the green coal oil and gas synthesis module.

4. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The integrated system of coal dry distillation power generation and green coal synthesis further includes a distillation tower, and the high-temperature coal tar is configured to be transported to the distillation tower for distillation.

5. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The coal dry distillation module also includes a hot blast furnace. The semi-coke produced by the coal dry distillation module is configured to be transported to the hot blast furnace for full oxygen combustion and used to heat the rotary kiln in the coal dry distillation module. The generated flue gas is transported to the purification device of the full oxygen combustion power generation module to recover CO2 and / or water.

6. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: A filter is provided in the channel for transporting the low-temperature dry distillation oil gas to the oxy-combustion power generation module, for removing impurities including ash.

7. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The oxy-fuel combustion power generation module includes a gas turbine, which is used to generate electricity and can produce flue gas.

8. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 7, characterized in that: The oxy-fuel combustion power generation module further includes a waste heat boiler, and the flue gas generated by the gas turbine is configured to be transported to the waste heat boiler for heat exchange.

9. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The hydrogen and oxygen production module includes a hydroelectric hydrogen production device, which is configured to be connected to green electricity and off-peak electricity of the power grid, so that the hydrogen and oxygen can be produced by electrolyzing water.

10. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The hydrogen and oxygen production module further includes an air separation device, which is capable of separating air to produce the oxygen.

11. The integrated system of coal dry distillation power generation and green coal synthesis according to claim 1, characterized in that: The semi-coke from the coal dry distillation module is transported to the waste heat boiler of the oxy-fuel combustion power generation module for combustion with oxy-fuel or air.

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