Operation method and system for centralized treatment and quality improvement of distributed organic solid waste and application

Abstract

The invention discloses an operation method and system for distributed organic solid waste centralized treatment and quality improvement and application, and relates to the field of chemical engineering, the operation method comprises the following steps: respectively carrying out pyrolysis treatment on organic solid waste distributed in different areas to obtain combustible gas and solid combustible materials and / or pyrolysis oil, using the combustible gas as fuel for pyrolysis treatment, and using the solid combustible materials and / or pyrolysis oil for pyrolysis treatment; the solid combustible comprises carbon powder and / or pyrolysis residues; concentrating and gasifying the solid combustibles and / or pyrolytic oil obtained in different areas to obtain mixed gas, dedusting the mixed gas, and converting the dedusted mixed gas by using water vapor to obtain a hydrogen crude product; purifying the hydrogen crude product to obtain a hydrogen product; packaging, storing or conveying the hydrogen product; the method solves the problem that large-scale industrial treatment and economic benefit improvement are difficult to realize due to the fact that the organic solid waste in a distributed area or a remote area has the characteristics of multiple types, small quantity, dispersive distribution, high transportation, recovery and treatment cost and the like.

Description

Technical Field

[0001] The present invention relates to the field of chemical technology, and in particular to an operation method, system and use for distributed centralized treatment and quality improvement of organic solid waste. Background Art

[0002] Organic solid waste mainly includes domestic waste, sludge generated during the treatment of organic sewage, solid waste from crop sources (such as straw, fallen leaves and other agricultural and forestry wastes), solid waste from animal sources (such as livestock and poultry manure), leather, plastic, oil sludge, etc. Among them, the resource utilization of organic solid waste is an important means of disposing of organic solid waste; however, organic solid waste such as agricultural and forestry waste and domestic waste are not suitable for long-distance transportation due to their low bulk density and low calorific value.

[0003] At present, urban organic solid waste is not a difficult problem to treat, mainly because urban organic solid waste is of a single type and relatively concentrated. The real problem lies in the organic solid waste in small cities, county towns and villages. In these areas, the organic solid waste is of many types, small in quantity and scattered, making it difficult to treat them alone using traditional methods such as incineration, landfilling and composting.

[0004] At present, among the solutions to organic solid waste in many counties, the carbonization-incineration process of domestic waste is adopted. Because it burns the high calorific value pyrolysis oil and gas produced in the carbonization stage, it can still ensure stable combustion and high combustion efficiency after large-scale consumption. Compared with the raw material, the energy density of the carbonized charcoal powder is greatly improved, and it is uniform and has a high calorific value. It has characteristics similar to coal, which can make it replace part of the coal in cement kiln production, thereby realizing the "harmless, reduced, and resource-based" treatment of these high-water-content, low-calorific-value, small-quantity and scattered organic solid wastes. However, due to the limited radiation radius of these scattered organic solid waste treatment points, the treatment scale is usually small (usually <300 tons / day), and it is difficult to achieve large-scale industrial treatment of organic solid waste and high economic benefits.

[0005] Moreover, various regions and large and medium-sized cities have released their own hydrogen energy development plans. The development of urban hydrogen energy is heavily dependent on a low-cost hydrogen production terminal that can meet demand. There is a problem of misplaced distribution of hydrogen energy. The economically developed eastern region needs a large amount of hydrogen. For example, Guangdong has a large demand for hydrogen, and there is a huge gap between the daily demand and the actual supply in cities. In the underdeveloped western regions, although the production of hydrogen from coal chemical hydrogen, renewable energy wind power, photovoltaic power generation, etc. is huge and has cost advantages, except for industrial hydrogen, the demand for urban hydrogen is not large. If it is transported to the east, it will face the problem of "difficulty in sending hydrogen from the west to the east".

[0006] Therefore, at present, the hydrogen supplied by urban hydrogen refueling stations mainly relies on long-tube trailers for transportation, which poses safety risks, long loading and unloading times, low transportation efficiency, high costs, and unsatisfactory overall energy efficiency. This makes the supply and price issues of hydrogen at hydrogen refueling stations increasingly prominent, becoming a key link restricting the sustainable development of the entire hydrogen energy industry.

[0007] In view of the above problems, how to better realize the resource utilization of organic solid waste still needs further improvement. To this end, the present invention proposes an operation method, system and use for distributed centralized treatment and quality improvement of organic solid waste. Summary of the invention

[0008] In view of the shortcomings of the prior art, the present invention provides an operating method, system and use for distributed centralized treatment and quality improvement of organic solid waste, which solves the problem that it is difficult to achieve large-scale industrial treatment and improve economic benefits of organic solid waste treatment in decentralized areas due to the large variety and small quantity of organic solid waste, scattered resource distribution, and high transportation, recycling and treatment costs.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: In a first aspect of the present invention, a distributed method for centralized treatment and quality improvement of organic solid waste is proposed, and the method comprises the following steps: (1) The organic solid waste distributed in different areas is subjected to pyrolysis treatment by a plurality of different pyrolysis devices to obtain combustible gas, solid combustible material and / or pyrolysis oil, and the combustible gas is used as fuel for the pyrolysis treatment, wherein the solid combustible material includes charcoal powder and / or pyrolysis residue; (2) The solid combustibles and / or pyrolysis oil obtained from different areas are concentrated and gasified by a gasification device to obtain a mixed gas; (3) removing dust from the mixed gas using a dust removal device; (4) Further, the mixed gas after dust removal is converted by using water vapor through a conversion device to obtain crude hydrogen; (5) Purifying the crude hydrogen product by a purification device to obtain a hydrogen product; (6) Finally, the hydrogen product is packaged, stored or transported by a packaging device or a transportation device.

[0010] As a further technical solution of the present invention, the operating method satisfies at least one of the following conditions: (a) The different regions include: one or more of counties, towns, villages and industrial parks; (b) the different regions include: at least one of the first region, the second region, and the third region; The organic solid waste in the first area includes at least one of domestic waste, kitchen waste and sludge; The organic solid waste in the second area includes agricultural and forestry waste; The organic solid waste in the third area includes at least one of industrial waste, leather, plastic and packaging paper; (c) The solid combustibles and / or the pyrolysis oil obtained from different regions are concentrated in cities or other regions with hydrogen demand for gasification treatment.

[0011] As a further technical solution of the present invention, the above solution satisfies at least one of the following conditions: (A) the temperature of pyrolysis treatment of the organic solid waste in the first area is 250-400° C. and the time is 25-35 minutes; (B) subjecting the organic solid waste in the second region to pyrolysis at a temperature of 200-300° C. for a period of 15-25 minutes; (C) The temperature of pyrolysis treatment of the organic solid waste in the third area is 450-600° C. and the time is 25-35 minutes.

[0012] As a further technical solution of the present invention, the calorific value of the carbon powder is 2000-5000 kcal / kg, the calorific value of the pyrolysis oil is 5000-10000 kcal / kg; and / or the particle size of the solid combustible is ≤8 mm.

[0013] As a further technical solution of the present invention, in step (5) of the operating method, the purification treatment includes: desulfurization and decarbonization treatment and pressure swing adsorption treatment; The purity of the hydrogen product is >99.97%.

[0014] As a further technical solution of the present invention, the hydrogen product in step (6) can be transported by supplying the hydrogen product to one or more hydrogen refueling stations using a hydrogen transport pipeline; Alternatively, the hydrogen product is packaged and stored and then supplied to one or more hydrogen refueling stations.

[0015] As a further technical solution of the present invention, the operating method satisfies at least one of the following conditions: (i) in at least one area, the combustible gas is used to perform heat exchange on the organic solid waste in advance, and then the organic solid waste and the combustible gas after the heat exchange are used to perform the pyrolysis treatment; (ii) in step (3), the method further comprises: using the mixed gas or the dedusted mixed gas to perform heat exchange with water to obtain water vapor, and using the water vapor for the gasification process and / or the conversion process; (iii) The gasification process further includes: supplying oxygen-containing gas to achieve self-heating balance of the gasification process.

[0016] In a second aspect of the present invention, a distributed organic solid waste centralized treatment and quality improvement operation system is proposed, the system comprising: A plurality of different pyrolysis devices, wherein the plurality of different pyrolysis devices are distributed in different areas, each of the pyrolysis devices independently comprises an organic solid waste inlet, a fuel inlet, a combustible gas outlet, a solid combustible material outlet and a pyrolysis oil outlet, and the combustible gas outlet is connected to the fuel inlet; A gasification device, the gasification device comprising a raw material inlet for gasification, a first water vapor inlet and a mixed gas outlet, the raw material inlet for gasification being suitable for supplying the solid combustibles and / or pyrolysis oil discharged from the pyrolysis device to the gasification device; A dust removal device, the dust removal device comprising a mixed gas inlet and a mixed gas outlet after dust removal, the mixed gas inlet being connected to the mixed gas outlet; A conversion device, the conversion device comprising a dedusted mixed gas inlet, a second water vapor inlet and a crude hydrogen outlet, the dedusted mixed gas inlet being connected to the dedusted mixed gas outlet; A purification device, the purification device comprising a crude hydrogen product inlet and a purified hydrogen outlet, the crude hydrogen product inlet being connected to the crude hydrogen product outlet; A packaging device and / or a conveying device, wherein the packaging device is suitable for packaging the purified hydrogen, and the conveying device is suitable for conveying the purified hydrogen.

[0017] As a further technical solution of the present invention, the operating system satisfies at least one of the following conditions: (I) The different regions include: one or more of counties, towns, villages, and industrial parks; (II) The purification device comprises a desulfurization and decarbonization device and a pressure swing adsorption device, wherein the desulfurization and decarbonization device comprises the crude hydrogen inlet, the alkaline adsorbent inlet and the desulfurization and decarbonization gas outlet, the pressure swing adsorption device comprises a desulfurization and decarbonization gas inlet and the purified hydrogen outlet, and the desulfurization and decarbonization gas inlet is connected to the desulfurization and decarbonization gas outlet; (III) further comprising: a transportation vehicle, wherein the transportation vehicle is suitable for centrally supplying the solid combustibles and / or pyrolysis oil obtained from different areas to the gasification device, and / or suitable for transporting the hydrogen after packaging and storage; (IV) The transport device comprises: a transport pipeline, the transport pipeline comprising a main pipeline and at least one sub-pipeline, the main pipeline is connected to the outlet of the purified hydrogen, and each of the sub-pipeline is matched and connected to at least one hydrogen refueling station; (V) the gasification device further comprises an oxygen-containing gas inlet, wherein the oxygen-containing gas inlet is suitable for supplying oxygen-containing gas into the gasification device; (VI) further comprising: a waste heat boiler, the waste heat boiler comprising a high temperature gas inlet, a low temperature gas outlet and a water vapor outlet, the water vapor outlet being connected to the first water vapor inlet and / or the second water vapor inlet, the high temperature gas inlet being connected to the mixed gas outlet, and the low temperature gas outlet being connected to the mixed gas inlet; Alternatively, the high-temperature gas inlet is connected to the mixed gas outlet after dust removal, and the low-temperature gas outlet is connected to the mixed gas inlet after dust removal.

[0018] In the third aspect of the present invention, the use of the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation method and / or distributed organic solid waste centralized treatment and quality improvement operation system in the field of organic solid waste treatment is proposed.

[0019] The present invention provides an operation method, system and use for distributed centralized treatment and quality improvement of organic solid waste, which has the following beneficial effects compared with the prior art: 1. The present invention adopts the scheme of "distributed carbon production and centralized hydrogen production", pyrolyzes the dispersed organic solid waste respectively, and concentrates the carbon powder, pyrolysis oil, etc. obtained by the pyrolysis to gasify and convert them to produce hydrogen nearby, so as to not only achieve effective treatment of organic solid waste, but also convert low calorific value organic solid waste into high calorific value hydrogen, and alleviate the problem of large gap in urban hydrogen demand, and realize "reduction and harmlessness" environmental protection treatment of solid waste on site in areas where economic conditions are feasible, and carbonize organic solid waste materials into biochar powder or pyrolysis oil with high volume energy density, so as to facilitate further quality improvement of organic solid waste materials.

[0020] 2. The present invention adopts the scheme of "distributed carbon production and centralized hydrogen production". Compared with organic solid waste raw materials, the organic solid waste is converted into solid combustibles such as carbon powder and / or pyrolysis oil, which has achieved the reduction of organic solid waste and is convenient for the subsequent centralized treatment of solid combustibles and / or pyrolysis oil. In addition, the scheme can also concentrate the solid combustibles and / or pyrolysis oil obtained in different areas to the economic transportation radius of the hydrogen supply point for gasification treatment, so as to realize local hydrogen production and supply, thereby not only narrowing the demand gap for hydrogen energy in the development of large and medium-sized cities, but also shortening the supply and transportation distance of hydrogen, reducing safety risks, improving transportation efficiency and reducing transportation costs.

[0021] 3. The present invention adopts the solution of "distributed carbon production and centralized hydrogen production". During use, the combustible gas outlet of the pyrolysis device is connected to the fuel inlet, and the combustible gas obtained from the pyrolysis treatment in each area is reused as fuel for the pyrolysis treatment in the area where it is located, which is beneficial to achieve self-heating balance during the pyrolysis treatment in different areas, thereby reducing the additional fuel supply and achieving the effect of treating waste with waste. Furthermore, while achieving environmentally friendly treatment of organic solid waste, by-products with high calorific value such as biochar powder and / or pyrolysis oil can be produced.

[0022] 4. The present invention adopts the scheme of "distributed carbon production and centralized hydrogen production". By performing pyrolysis treatment in multiple areas respectively, suitable pyrolysis process operating parameters can be selected based on the characteristics of organic solid waste in different areas. For example, the suitable pyrolysis process operating parameters are different for organic solid waste mainly composed of domestic waste, organic solid waste mainly composed of agricultural and forestry waste, and organic solid waste such as leather and plastic. By adjusting the pyrolysis process operating parameters in different areas respectively, it is beneficial to produce carbon powder or pyrolysis residue with similar calorific value and properties while achieving the purpose of environmentally friendly treatment of organic solid waste in each area, thereby helping to improve the efficiency and stability of subsequent gasification treatment.

[0023] 5. The "distributed carbon production and centralized hydrogen production" solution adopted by the present invention can be applied to the scale of organic solid waste carbonization-incineration treatment under construction and operation, and is also suitable for organic solid waste treatment projects with a scale of less than 300 tons / day. It is especially suitable for the resource treatment of organic solid waste in decentralized areas such as small cities, county towns and villages that are not within the economic transportation radius of garbage incineration. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall flow chart of the operating method for distributed organic solid waste centralized treatment and quality improvement.

[0025] Figure 2 Principle flow of the operation method for improving the quality of distributed organic solid waste centralized treatment Figure 1 .

[0026] Figure 3 Principle flow of the operation method for improving the quality of distributed organic solid waste centralized treatment Figure 2 .

[0027] Figure 4 Schematic diagram of the structure of the operating system for distributed organic solid waste centralized treatment and quality improvement Figure 1 .

[0028] Figure 5 Schematic diagram of the structure of the operating system for distributed organic solid waste centralized treatment and quality improvement Figure 2 .

[0029] Description of reference numerals: 100-pyrolysis device; 110-organic solid waste inlet; 120-fuel inlet; 130-combustible gas outlet; 140-solid combustible outlet; 150-pyrolysis oil outlet; 200 - gasification device; 210 - inlet of raw materials to be gasified; 220 - inlet of first water vapor; 230 - outlet of mixed gas; 240 - inlet of oxygen-containing gas; 300 - dust removal device; 310 - mixed gas inlet; 320 - mixed gas outlet after dust removal; 400 - conversion device; 410 - inlet of mixed gas after dust removal; 420 - inlet of second water vapor; 430 - outlet of crude hydrogen; 500-purification device; 5001-desulfurization and decarbonization device; 5002-pressure swing adsorption device; 510-hydrogen crude product inlet; 520-purified hydrogen outlet; 530-alkaline adsorbent inlet; 540-desulfurization and decarbonization gas outlet; 550-desulfurization and decarbonization gas inlet; 600 - Hydrogen refueling station. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Embodiment 1

[0031] refer to Figure 1 or Figure 2 It is understood that in the first aspect of the present invention, a distributed method for centralized treatment and quality improvement of organic solid waste is proposed, the method comprising: (1) The organic solid waste distributed in different areas is subjected to pyrolysis treatment by a plurality of different pyrolysis devices 100 to obtain combustible gas, solid combustible material and / or pyrolysis oil, and the combustible gas is used as fuel for pyrolysis treatment, wherein the solid combustible material includes charcoal powder and / or pyrolysis residue; (2) The solid combustibles and / or pyrolysis oil obtained in different areas are concentrated and gasified by a gasification device 200 to obtain a mixed gas; (3) Using the dust removal device 300 to remove dust from the mixed gas; (4) Further, the mixed gas after dust removal is converted by using water vapor through the conversion device 400 to obtain crude hydrogen; (5) Purifying the crude hydrogen product by the purification device 500 to obtain a hydrogen product; (6) Finally, the hydrogen product is packaged, stored and / or transported by a packaging device or a transportation device.

[0032] Among them, reference Figure 2 Understand that the main routes of this run method include: ① First, locate the distributed organic solid waste upgrading points, which are scattered in different areas and suitable for pyrolysis treatment of organic solid waste in the area; ② At each organic solid waste upgrading point, the organic solid waste is pyrolyzed independently to obtain intermediate products, such as carbon powder, pyrolysis oil, etc. The intermediate products located in different upgrading points are concentrated to the centralized hydrogen production point for hydrogen production. The hydrogen production process includes gasification, dust removal, steam conversion and purification process to obtain hydrogen products; ③The hydrogen products are then supplied to hydrogen refueling stations and other users who need hydrogen.

[0033] This operation method adopts the scheme of "distributed carbon production (and / or pyrolysis oil) and centralized hydrogen production", combined with the advantages of low-temperature carbonization process of organic solid waste with moderate treatment scale (such as 30-300 tons / day), it can realize the "reduction and harmlessness" environmental protection treatment of solid waste on-site in areas where economic conditions are feasible, and carbonize organic solid waste materials into biochar powder or pyrolysis oil with high volume energy density, so as to facilitate the further quality improvement of organic solid waste materials; Reusing the combustible gas obtained from the pyrolysis treatment in each area as fuel for the pyrolysis treatment in that area is beneficial to achieving self-thermal balance during the pyrolysis treatment in different areas, thereby reducing the supply of additional fuel and achieving the effect of treating waste with waste. Under normal circumstances, the combustible gas obtained from the pyrolysis treatment of organic solid waste in each area is sufficient to maintain its self-thermal balance, and no additional fuel needs to be supplied during the period.

[0034] This solution can also be used to concentrate the solid combustibles and / or pyrolysis oil obtained from various regions within the economic transportation radius of the hydrogen supply point for gasification treatment, thereby achieving local hydrogen production and supply. This can not only narrow the demand gap for hydrogen energy in the development of large and medium-sized cities, but also shorten the supply and transportation distance of hydrogen, reduce safety risks, improve transportation efficiency and reduce transportation costs.

[0035] Reference below Figure 1-3 , the operation method of the distributed organic solid waste centralized treatment and quality improvement of the above embodiment of the present invention is described in detail: For example, taking biomass organic solid waste as an example, the above-mentioned "distributed carbon powder production, centralized hydrogen production" operation mode of the present invention is adopted. Based on the calculation of 0.33 tons of carbon powder produced from 1 ton of biomass, the income from the sale of carbon powder for 1 ton of biomass needs to be 660 yuan to be economically feasible. Through the production of hydrogen by carbon powder, about 600Nm³ of hydrogen can be produced. Based on the hydrogen sales price of 20 yuan / kg, the income is 1071 yuan, of which the cost of the carbon powder hydrogen production section is 400 yuan, which can provide a stable income of more than 660 yuan for the carbonization section to produce carbon powder. Compared with the high cost of using straw to make biochar in the relevant field, if the sales price of the obtained biochar powder does not reach 2,000 yuan / ton, the entire carbonization project is not economical. The operation method of the distributed organic solid waste centralized treatment and quality improvement in the above-mentioned embodiment of the present invention is extremely feasible.

[0036] In some specific embodiments of the present invention, after the pyrolysis treatment of organic solid waste is completed, solid pyrolysis products (i.e., solid combustibles) and combustible gases can be obtained. In addition, liquid pyrolysis oil may also be obtained. It can be understood that the solid pyrolysis products obtained by pyrolysis treatment of biomass organic solid waste are mainly pyrolysis charcoal; the solid pyrolysis products of non-biomass organic solid waste such as leather and plastic, in addition to carbon, also include other solid residues, such as metal oxides, fillers, etc., collectively referred to as pyrolysis residues.

[0037] In some specific embodiments of the present invention, according to step (1) of the above-mentioned operation method, different regions may include: one or more of: counties, towns, villages, and industrial parks; For example, refer to Figure 3 Understanding, it shows the operation method of including at least two different counties and one industrial park as distributed organic solid waste upgrading points, and Figure 3 It also shows that township areas can also be used as organic solid waste quality improvement points; among them, counties, towns, villages, and industrial parks all have the characteristics of many types of organic solid waste, small quantities, and dispersion, which are difficult to be treated independently by traditional methods such as incineration, landfill, and composting. Especially in counties, towns, and villages in remote areas, the problem is particularly prominent, and it is difficult to achieve industrialization and large-scale treatment of organic solid waste, and the economic feasibility is poor; By pyrolyzing organic solid waste distributed in different counties, towns, villages, and industrial parks respectively, and then concentrating the solid combustibles and / or pyrolysis oil obtained in different areas for hydrogen production, it is more conducive to achieving large-scale industrial processing of decentralized regional organic solid waste and high economic benefits, thereby not only narrowing the gap in the demand for hydrogen energy in the development of large and medium-sized cities, but also shortening the supply and transportation distance of hydrogen, reducing safety risks, improving transportation efficiency and reducing transportation costs. In addition, it can also be understood that in the present invention, the number of different areas is not particularly limited, and technicians in this field can flexibly choose according to actual needs.

[0038] Further, in some specific embodiments of the present invention, the different regions may include, but are not limited to: at least one of the first region, the second region, and the third region, and the organic solid waste in the first region may include at least one of domestic waste, kitchen waste, and sludge; refer to Figure 3 Understand, we can know: ① Pyrolysis of this type of organic solid waste can produce pyrolysis products mainly composed of pyrolysis carbon and combustible gas; the organic solid waste in the second area may include agricultural and forestry waste; ② Pyrolysis of such organic solid waste can produce pyrolysis products mainly composed of pyrolysis carbon and combustible gas; the organic solid waste in the third area may include at least one of industrial waste, leather, plastic and packaging paper; ③ Pyrolysis of this type of organic solid waste can produce pyrolysis products mainly consisting of pyrolysis residue, pyrolysis oil and combustible gas.

[0039] It should be noted that the pyrolysis residues obtained from the pyrolysis of leather, plastics, etc. are also carbon-containing products and are flammable. Due to the geographical, economic, architectural, and living standards of different regions, the types of organic solid waste that may be generated in different regions are also different. According to the different regional distributions and different types of organic solid waste compositions, the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation method can be used to achieve the purpose of "distributed carbon production (and / or pyrolysis oil) and centralized hydrogen production", thereby realizing large-scale industrial treatment of decentralized regional organic solid waste and high economic benefits.

[0040] In some specific embodiments of the present invention, according to the types and characteristics of organic solid waste sorted out from different regions, such as organic solid waste sorted out from one or more of domestic garbage, straw, nursery flower waste, livestock and poultry manure, agricultural and forestry mulch, construction waste, etc., solid combustibles (such as charcoal powder) or pyrolysis oil with similar calorific value and properties can be obtained by adjusting the pyrolysis process parameters in different regions while ensuring environmentally friendly treatment at each point.

[0041] (A) the temperature of pyrolysis treatment of the organic solid waste in the first area is 250-400° C. and the time is 25-35 minutes; (B) subjecting the organic solid waste in the second region to pyrolysis at a temperature of 200-300° C. for a period of 15-25 minutes; (C) the temperature of pyrolysis treatment of the organic solid waste in the third area is 450-600°C and the time is 25-35 minutes, by Figure 3Taking it as an example, it shows the pyrolysis process parameters for organic solid waste in County 1, County 2 and Industrial Park 1. For areas where the organic solid waste meets the given type, the conditions for the pyrolysis treatment of organic solid waste are controlled to meet the given range. This is further beneficial to achieving environmentally friendly treatment of organic solid waste in different regions, so that different regions can obtain solid combustibles (such as charcoal powder) or pyrolysis oil with similar calorific value and properties.

[0042] It should be noted that before the pyrolysis treatment, the organic solid waste can be crushed in advance, which is beneficial to improve the efficiency and effect of the pyrolysis treatment.

[0043] Moreover, after the pyrolysis treatment, the solid pyrolysis product can be crushed to obtain granular or powdered solid combustibles, which include charcoal powder and / or pyrolysis residues. This can further improve the efficiency and effect of subsequent gasification treatment, thereby further realizing high value-added resource utilization of organic solid waste.

[0044] In some embodiments of the present invention, the particle size of the solid combustible material may be ≤8 mm, for example, ≤7 mm, ≤6 mm, ≤5 mm, ≤4 mm, ≤3 mm or ≤2 mm, etc.; and reducing the particle size of the solid combustible material is conducive to further realizing the efficient subsequent gasification treatment. Taking the gasification treatment using a pressurized fluidized bed as an example, controlling the particle size of the solid combustible material within a given range can not only meet the use requirements of the pressurized fluidized bed, but also further improve the gasification efficiency and conversion rate of the solid combustible material, thereby further realizing the high added value resource utilization of organic solid waste. Optionally, the volume particle size Dv50 of the solid combustible material can be 1.5 mm-2.5 mm.

[0045] In some embodiments of the present invention, it should be supplemented that after pyrolysis treatment of low calorific value organic solid waste, solid combustibles and pyrolysis oil with higher calorific value can be obtained. Taking charcoal powder and pyrolysis oil as examples, the calorific value of charcoal powder can reach 2000-5000 kcal / kg, and the calorific value of pyrolysis oil can reach 5000-10000 kcal / kg; among them, the calorific value of charcoal powder and pyrolysis oil can be further improved by adjusting the operating parameters of the pyrolysis treatment.

[0046] In some specific embodiments of the present invention, in at least one area, combustible gas can be used to perform heat exchange on organic solid waste in advance, and then the organic solid waste and combustible gas after heat exchange can be used for pyrolysis treatment. This can improve the efficiency and effect of the pyrolysis treatment, improve the waste heat utilization rate of the combustible gas, and also help maintain system stability during the pyrolysis treatment process.

[0047] In some specific embodiments of the present invention, solid combustibles and / or pyrolysis oil obtained from different areas can be concentrated in cities or other areas with hydrogen demand for gasification treatment to achieve local hydrogen production and supply. This can not only shorten the transportation distance between the solid combustibles and / or pyrolysis oil and the hydrogen production point, but also shorten the distance between the hydrogen production point and the hydrogen supply point (such as a hydrogen refueling station, etc.) that needs hydrogen replenishment. This can not only reduce the transportation distance of hydrogen, thereby reducing the safety risks that may arise during the hydrogen transportation process, but also improve the transportation efficiency and reduce transportation costs.

[0048] In some specific embodiments of the present invention, solid combustibles and / or pyrolysis oil obtained from different areas can be gathered together for gasification treatment by means of transportation. When the solid combustibles and / or pyrolysis oil produced in different areas are concentrated within the economic transportation radius of the hydrogen supply point for gasification treatment, the use of transportation not only makes it easy to realize the "distributed charcoal production (and / or pyrolysis oil) and centralized hydrogen production" of organic solid waste in remote areas or multiple dispersedly distributed areas, but also improves transportation efficiency, thereby realizing large-scale industrial treatment of organic solid waste in decentralized areas and high economic benefits.

[0049] Furthermore, the gasification process may also include: supplying oxygen-containing gas to achieve self-heating balance of the gasification process. During the gasification process, in addition to supplying water vapor to react with small molecular hydrocarbons (such as methane, ethane, acetylene, etc.) produced by cracking of carbon powder or pyrolysis oil, oxygen-containing gas, such as air or oxygen, may also be supplied to burn a small amount of mixed gas to provide heat for the gasification process and achieve self-heating balance.

[0050] In step (3) of the distributed organic solid waste centralized treatment and quality improvement operation method, it also includes: using the mixed gas or the mixed gas after dust removal to exchange heat with water to obtain water vapor, and using the water vapor for gasification treatment and / or conversion treatment; Among them, the reactions occurring during the gasification process include: pyrolysis oil cracking to produce small molecular products such as hydrocarbons, carbon and / or small molecular hydrocarbons reacting with water vapor to produce CO and H2, etc. In the subsequent conversion process, CO and / or small molecular hydrocarbons continue to react with water vapor to produce CO2 and H2.

[0051] In addition, the temperature of the mixed gas obtained by gasification treatment is as high as 900°C-1000°C, and the conversion treatment can be carried out within the range of 250°C-500°C. By performing heat exchange treatment on the mixed gas before or after dust removal, not only can the waste heat of the mixed gas be fully utilized and water vapor be provided for gasification treatment and / or conversion treatment, but also the conversion treatment can be carried out smoothly. In some embodiments, a waste heat boiler can be used to exchange heat between the mixed gas and water to obtain water vapor and the mixed gas after heat exchange.

[0052] In step (5) of the distributed method for centralized treatment and quality improvement of organic solid waste, the purification treatment may include: desulfurization and decarbonization treatment and pressure swing adsorption treatment.

[0053] Furthermore, during the conversion process, CO and other gases in the mixed gas continue to react with water vapor to produce CO2 and H2. Through desulfurization and decarbonization treatment, CO2 and possible impurity gases such as H2S in the crude hydrogen product can be removed; through pressure swing adsorption (PSA) treatment, nitrogen and a small amount of residual CO and other impurity gases in the crude hydrogen product can be further removed, thereby obtaining a high-purity hydrogen product.

[0054] It should be noted that the specific operation mode and the adopted equipment of the desulfurization and decarbonization treatment are not particularly limited, and those skilled in the art can flexibly select them according to actual needs. For example, chemical adsorption or physical adsorption can be adopted. For example, alkaline adsorbent can be used to react with impurity gases such as CO2 and H2S in the crude hydrogen to achieve the effect of desulfurization and decarbonization. For another example, the desulfurization and decarbonization treatment can be carried out in an adsorption tower.

[0055] In addition, the dust removal treatment is carried out before the conversion treatment in the present invention, which can not only remove impurities such as dust in the mixed gas and reduce the impurity content in the obtained crude hydrogen product, but also reduce the risk of decreased adsorption efficiency due to high dust content in the gas during the pressure swing adsorption process, and even clogging the equipment and causing safety problems.

[0056] In some specific embodiments of the present invention, the purity of the hydrogen obtained after purification is relatively high. For example, the purity of the hydrogen product obtained after dust removal and purification can be greater than 99.97%, thereby further meeting the demand for high-purity hydrogen at various hydrogen refueling stations.

[0057] In some specific embodiments of the present invention, hydrogen products can also be supplied to one or more hydrogenation stations by using hydrogen transportation pipelines; or, hydrogen products can be supplied to one or more hydrogenation stations after being packaged and stored, and solid combustibles and / or pyrolysis oil obtained in different regions can be concentrated within the economic transportation radius of hydrogen supply points such as hydrogenation stations for gasification treatment, so as to realize nearby hydrogen production and supply. Therefore, whether hydrogen products are transported to hydrogenation stations by using hydrogen transportation pipelines or hydrogen products are packaged and stored and supplied to hydrogenation stations, it is easy to realize, and the transportation distance is short, the efficiency is high, and the transportation cost is low; It is understandable that the multiple hydrogenation stations can be located in the same area or in different areas, as long as they are within the economic transportation radius of the hydrogen production point. For example, if the hydrogen production point is located within the encirclement of multiple cities, the solid combustibles and / or pyrolysis oil obtained in different areas can be concentrated in the encirclement of multiple cities for gasification, conversion, dust removal and purification. At this time, the hydrogen product can be supplied to multiple hydrogenation stations in one city, or it can be supplied to multiple hydrogenation stations located in multiple different cities at the same time (refer to Figure 3 understand). Embodiment 2

[0058] refer to Figure 4 It is understood that, based on the same inventive concept, in the second aspect of the present invention, a distributed organic solid waste centralized treatment and quality improvement operation system is proposed, the system comprising: A plurality of different pyrolysis devices 100 , gasification devices 200 , dust removal devices 300 , conversion devices 400 , purification devices 500 , and packaging devices (not shown) and / or transportation devices (not shown).

[0059] Among them, multiple different pyrolysis devices 100 are distributed in different areas, and each pyrolysis device 100 independently includes an organic solid waste inlet 110, a fuel inlet 120, a combustible gas outlet 130, a solid combustible material outlet 140 and a pyrolysis oil outlet 150, and the combustible gas outlet 130 is connected to the fuel inlet 120.

[0060] Among them, multiple different pyrolysis devices 100 are suitable for performing pyrolysis treatment on organic solid waste distributed in different areas to obtain combustible gas, solid combustible materials, and pyrolysis oil. At the same time, the combustible gas can be used as fuel for pyrolysis treatment, wherein the solid combustible materials can include charcoal powder and / or pyrolysis residue.

[0061] The gasification device 200 includes a raw material inlet 210 for gasification, a first steam inlet 220 and a mixed gas outlet 230 . The raw material inlet 210 for gasification is suitable for supplying solid combustibles and / or pyrolysis oil discharged from the pyrolysis device 100 to the gasification device 200 .

[0062] The gasification device 200 is suitable for concentrating the solid combustibles and / or pyrolysis oil obtained from different areas and performing gasification treatment to obtain a mixed gas.

[0063] The dust removal device 300 includes a mixed gas inlet 310 and a mixed gas outlet 320 after dust removal. The mixed gas inlet 310 is connected to the mixed gas outlet 230. The dust removal device 300 is suitable for performing dust removal on the mixed gas.

[0064] The conversion device 400 includes a dust-removed mixed gas inlet 410, a second water vapor inlet 420 and a crude hydrogen product outlet 430. The dust-removed mixed gas inlet 410 is connected to the dust-removed mixed gas outlet 320. The conversion device 400 is suitable for using water vapor to convert the dust-removed mixed gas to obtain a crude hydrogen product; the purification device 500 is suitable for extracting the crude hydrogen product to obtain a hydrogen product.

[0065] The purification device 500 includes a crude hydrogen product inlet 510 and a purified hydrogen product outlet 520 , wherein the crude hydrogen product inlet 510 is connected to the crude hydrogen product outlet 430 .

[0066] The packaging device is suitable for packaging hydrogen, and the transportation device is suitable for transporting hydrogen.

[0067] Furthermore, the obtained hydrogen product can be transported to hydrogen filling station 600 and other places or users requiring hydrogen supply through packaging devices and / or transportation devices. The packaging devices can adopt existing conventional hydrogen packaging devices and / or transportation devices, which will not be described in detail here.

[0068] By adopting this operating system, we can fully take into account the actual situation that there are many types of organic solid waste in different decentralized areas, the output is small and scattered, and the economic transportation radius is limited, and give full play to the advantages of the moderate scale of low-temperature carbonization process of organic solid waste (such as 30-300 tons / day). In areas where economic conditions are feasible, we can use pyrolysis equipment on site to achieve "reduction and harmlessness" and environmentally friendly treatment of solid waste.

[0069] Among them, different areas may include one or more of: counties, towns, villages, and industrial parks.

[0070] Furthermore, the solid combustibles and / or pyrolysis oil discharged from the pyrolysis devices located in different areas can be concentrated in the nearest cities or regions with hydrogen demand for gasification treatment, so as to realize local hydrogen production and supply. As a result, large-scale industrial treatment and high economic benefits of organic solid waste in decentralized areas, especially remote areas, can be achieved, which can not only narrow the demand gap for hydrogen energy in the development of large and medium-sized cities, but also shorten the supply and transportation distance of hydrogen, reduce safety risks, improve transportation efficiency and reduce transportation costs.

[0071] The distributed organic solid waste centralized treatment and quality improvement operation system may also include: one or more first crushing devices (not shown), which may be arranged upstream of the pyrolysis device 100 and are suitable for crushing the organic solid waste before supplying it to the pyrolysis device 100 for pyrolysis treatment, thereby improving the efficiency and effect of pyrolysis treatment of the organic solid waste.

[0072] The distributed organic solid waste centralized treatment and quality improvement operation system may further include: one or more second crushing devices (not shown), which may be arranged downstream of the pyrolysis device 100 and are suitable for crushing the solid combustibles discharged from the pyrolysis device 100. Thus, the efficiency and effect of the gasification treatment may be improved. It should be added that the first crushing device and the second crushing device are both crushers used for conventional organic solid waste treatment.

[0073] refer to Figure 5 As shown, the purification device 500 may include a desulfurization and decarbonization device 5001 and a pressure swing adsorption device 5002. The desulfurization and decarbonization device 5001 may include a crude hydrogen inlet 510, an alkaline adsorbent inlet 530 and a desulfurization and decarbonization gas outlet 540. The pressure swing adsorption device 5002 may include a desulfurization and decarbonization gas inlet 550 and a purified hydrogen outlet 520. The desulfurization and decarbonization gas inlet 550 is connected to the desulfurization and decarbonization gas outlet 540. The desulfurization and decarbonization device 5001 and the pressure swing adsorption device 5002 can be used to sequentially perform desulfurization and decarbonization treatment and pressure swing adsorption treatment on the crude hydrogen product, thereby making the purified hydrogen have a higher hydrogen purity.

[0074] The distributed organic solid waste centralized treatment and quality improvement operation system may also include: a vehicle (not shown), which is suitable for centralized supply of solid combustibles and / or pyrolysis oil obtained from different areas to the gasification device, and / or suitable for transporting the hydrogen after packaging and storage. This is further conducive to the realization of "distributed charcoal production (and / or pyrolysis oil) and centralized hydrogen production" of organic solid waste in remote areas or multiple decentralized areas, and can also improve transportation efficiency, thereby realizing large-scale industrial treatment of organic solid waste in decentralized areas and high economic benefits.

[0075] In some embodiments of the present invention, the transport device may include: a transport pipeline (not shown), the transport pipeline may include a main pipeline and at least one sub-pipeline, the main pipeline may be connected to the purified hydrogen outlet 520, and each sub-pipeline may be matched and connected to at least one hydrogen refueling station 600, thereby directly utilizing the hydrogen pipeline to achieve the transport of high-purity hydrogen.

[0076] In some embodiments of the present invention, the gasification device 200 may further include an oxygen-containing gas inlet 240, which is suitable for supplying oxygen-containing gas, such as air or oxygen, into the gasification device 200. Therefore, during the gasification process, a small amount of mixed gas can be burned to provide heat for the gasification process, thereby achieving self-heating balance.

[0077] The distributed organic solid waste centralized treatment and quality improvement operation system may further include: a waste heat boiler (not shown), the waste heat boiler may include a high-temperature gas inlet, a low-temperature gas outlet and a water vapor outlet, the water vapor outlet may be connected to the first water vapor inlet 220 and / or the second water vapor inlet 420, the high-temperature gas inlet is connected to the mixed gas outlet 230, and the low-temperature gas outlet is connected to the mixed gas inlet 310; Alternatively, the high-temperature gas inlet can be connected to the mixed gas outlet 320 after dust removal, and the low-temperature gas outlet can be connected to the mixed gas inlet 410 after dust removal. The waste heat boiler is suitable for cooling the mixed gas before or after dust removal, and producing water vapor as a by-product. Therefore, not only can the waste heat of the mixed gas be fully utilized, and water vapor can be provided for gasification treatment and / or conversion treatment, but also the conversion treatment can be carried out smoothly.

[0078] It should be noted that the distributed organic solid waste centralized treatment and quality improvement operation system and the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation method are proposed based on the same inventive concept, and the characteristics and effects described for the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation method are also applicable to the distributed organic solid waste centralized treatment and quality improvement operation system, which will not be repeated here one by one. Embodiment 3

[0079] In the third aspect of the present invention, the use of the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation method and / or distributed organic solid waste centralized treatment and quality improvement operation system in the field of organic solid waste treatment is proposed.

[0080] It should be noted that the characteristics and effects described for the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation method and the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation system are also applicable to this purpose and will not be repeated here. Among them, the above-mentioned distributed organic solid waste centralized treatment and quality improvement operation method and / or distributed organic solid waste centralized treatment and quality improvement operation system not only provide a new direction for the resource utilization and high-economic-efficiency treatment of organic solid waste in remote areas or multiple dispersed areas, but also provide new ideas for the resource utilization treatment of other solid wastes or renewable energy.

[0081] It should be noted that, in the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples and the features of different embodiments or examples described in this specification without contradiction.

[0082] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distributed method for centralized treatment and quality improvement of organic solid waste, characterized in that: The operation method comprises the following steps: (1) organic solid waste distributed in different areas is subjected to pyrolysis treatment by using a plurality of different pyrolysis devices (100) to obtain combustible gas, solid combustible material and / or pyrolysis oil, and the combustible gas is used as fuel for the pyrolysis treatment, wherein the solid combustible material includes charcoal powder and / or pyrolysis residue; (2) The solid combustibles and / or pyrolysis oil obtained in different areas are concentrated and gasified using a gasification device (200) to obtain a mixed gas; (3) performing dust removal treatment on the mixed gas using a dust removal device (300); (4) Further, the mixed gas after dust removal is converted by using water vapor in a conversion device (400) to obtain a crude hydrogen product; (5) purifying the crude hydrogen product using the purification device (500) to obtain a hydrogen product; (6) Finally, the hydrogen product is packaged, stored or transported by a packaging device or a transportation device.

2. The distributed organic solid waste centralized treatment and quality improvement operation method according to claim 1 is characterized in that: The operation method satisfies at least one of the following conditions: (a) The different regions include: one or more of counties, towns, villages and industrial parks; (b) the different regions include: at least one of the first region, the second region, and the third region; The organic solid waste in the first area includes at least one of domestic waste, kitchen waste and sludge; The organic solid waste in the second area includes agricultural and forestry waste; The organic solid waste in the third area includes at least one of industrial waste, leather, plastic and packaging paper; (c) The solid combustibles and / or the pyrolysis oil obtained from different regions are concentrated in cities or other regions with hydrogen demand for gasification treatment.

3. The distributed organic solid waste centralized treatment and quality improvement operation method according to claim 2 is characterized in that: At least one of the following conditions is met: (A) the temperature of pyrolysis treatment of the organic solid waste in the first area is 250-400° C. and the time is 25-35 minutes; (B) subjecting the organic solid waste in the second region to pyrolysis at a temperature of 200-300° C. for a period of 15-25 minutes; (C) The temperature of pyrolysis treatment of the organic solid waste in the third area is 450-600° C. and the time is 25-35 minutes.

4. The distributed organic solid waste centralized treatment and quality improvement operation method according to claim 1 is characterized in that: The calorific value of the carbon powder is 2000-5000 kcal / kg, the calorific value of the pyrolysis oil is 5000-10000 kcal / kg; and / or the particle size of the solid combustible is ≤8 mm.

5. The distributed organic solid waste centralized treatment and quality improvement operation method according to claim 1 is characterized in that: The purification treatment in step (5) includes: desulfurization and decarbonization treatment and pressure swing adsorption treatment; The purity of the hydrogen product is >99.97%.

6. The distributed organic solid waste centralized treatment and quality improvement operation method according to claim 1 is characterized in that: The hydrogen product in step (6) may be transported by using a hydrogen transport pipeline to supply the hydrogen product to one or more hydrogen refueling stations; Alternatively, the hydrogen product is packaged and stored and then supplied to one or more hydrogen refueling stations.

7. The distributed organic solid waste centralized treatment and quality improvement operation method according to any one of claims 1 to 6 is characterized in that: The operation method satisfies at least one of the following conditions: (i) in at least one area, the combustible gas is used to perform heat exchange on the organic solid waste in advance, and then the organic solid waste and the combustible gas after the heat exchange are used to perform the pyrolysis treatment; (ii) in step (3), the method further comprises: using the mixed gas or the dedusted mixed gas to perform heat exchange with water to obtain water vapor, and using the water vapor for the gasification process and / or the conversion process; (iii) The gasification process further includes: supplying oxygen-containing gas to achieve self-heating balance of the gasification process.

8. An operating system for carrying out the distributed organic solid waste centralized treatment and quality improvement method according to any one of claims 1 to 7, characterized in that: The system includes: A plurality of different pyrolysis devices (100), wherein the plurality of different pyrolysis devices (100) are distributed in different areas, each of the pyrolysis devices (100) independently comprises an organic solid waste inlet (110), a fuel inlet (120), a combustible gas outlet (130), a solid combustible material outlet (140), and a pyrolysis oil outlet (150), wherein the combustible gas outlet (130) is connected to the fuel inlet (120); A gasification device (200), the gasification device (200) comprising a raw material inlet (210) to be gasified, a first water vapor inlet (220) and a mixed gas outlet (230), the raw material inlet (210) to be gasified being suitable for supplying solid combustibles and / or pyrolysis oil discharged from the pyrolysis device (100) to the gasification device (200); A dust removal device (300), the dust removal device (300) comprising a mixed gas inlet (310) and a mixed gas outlet (320) after dust removal, the mixed gas inlet (310) being connected to the mixed gas outlet (230); A conversion device (400), the conversion device (400) comprising a dedusted mixed gas inlet (410), a second water vapor inlet (420) and a crude hydrogen product outlet (430), the dedusted mixed gas inlet (410) being connected to the dedusted mixed gas outlet (320); A purification device (500), the purification device (500) comprising a crude hydrogen product inlet (510) and a purified hydrogen outlet (520), the crude hydrogen product inlet (510) being connected to the crude hydrogen product outlet (430); A packaging device and / or a conveying device, wherein the packaging device is suitable for packaging the purified hydrogen, and the conveying device is suitable for conveying the purified hydrogen.

9. The distributed organic solid waste centralized treatment and quality improvement operation system according to claim 8 is characterized in that: The operating system meets at least one of the following conditions: (I) The different regions include: one or more of counties, towns, villages, and industrial parks; (II) The purification device (500) comprises a desulfurization and decarbonization device (5001) and a pressure swing adsorption device (5002), wherein the desulfurization and decarbonization device (5001) comprises the crude hydrogen inlet (510), the alkaline adsorbent inlet (530) and the desulfurization and decarbonization gas outlet (540), and the pressure swing adsorption device (5002) comprises a desulfurization and decarbonization gas inlet (550) and the purified hydrogen outlet (520), and the desulfurization and decarbonization gas inlet (550) is connected to the desulfurization and decarbonization gas outlet (540); (III) further comprising: a transportation vehicle, wherein the transportation vehicle is suitable for centrally supplying the solid combustibles and / or pyrolysis oil obtained from different areas to the gasification device (200), and / or is suitable for transporting the hydrogen after packaging and storage; (IV) The transport device comprises: a transport pipeline, the transport pipeline comprising a main pipeline and at least one sub-pipeline, the main pipeline is connected to the purified hydrogen outlet (520), and each of the sub-pipelines is matched and connected to at least one hydrogen refueling station (600); (V) the gasification device (200) further comprises an oxygen-containing gas inlet (240), wherein the oxygen-containing gas inlet (240) is suitable for supplying oxygen-containing gas into the gasification device (200); (VI) further comprising: a waste heat boiler, the waste heat boiler comprising a high-temperature gas inlet, a low-temperature gas outlet and a water vapor outlet, the water vapor outlet being connected to the first water vapor inlet (220) and / or the second water vapor inlet (420), the high-temperature gas inlet being connected to the mixed gas outlet (230), and the low-temperature gas outlet being connected to the mixed gas inlet (310); Alternatively, the high-temperature gas inlet is connected to the dust-removed mixed gas outlet (320), and the low-temperature gas outlet is connected to the dust-removed mixed gas inlet (410).

10. Use of the operating method according to any one of claims 1 to 7 and / or the operating system according to any one of claims 8 to 9 in the field of organic solid waste treatment.

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