WO2021042699A1 - 一种双熔浴有机固废喷吹气化装置 - Google Patents
一种双熔浴有机固废喷吹气化装置 Download PDFInfo
- Publication number
- WO2021042699A1 WO2021042699A1 PCT/CN2020/080167 CN2020080167W WO2021042699A1 WO 2021042699 A1 WO2021042699 A1 WO 2021042699A1 CN 2020080167 W CN2020080167 W CN 2020080167W WO 2021042699 A1 WO2021042699 A1 WO 2021042699A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slag
- bath
- furnace
- molten iron
- gasification
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/57—Gasification using molten salts or metals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/52—Ash-removing devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/78—High-pressure apparatus
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/008—Use of special additives or fluxing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/09—Mechanical details of gasifiers not otherwise provided for, e.g. sealing means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1246—Heating the gasifier by external or indirect heating
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2200/00—Recycling of non-gaseous waste material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/32—Technologies related to metal processing using renewable energy sources
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Definitions
- the present invention belongs to the field of chemical industry, the classification number is C10J3, and specifically relates to a double-melt bath organic solid waste blowing gasification device.
- the high-speed gas jet is blown to the molten metal or the slag liquid by a spray gun, forming a fierce gas-liquid mixed flow, which brings intense stirring of the molten pool, which constitutes a good reaction kinetics
- the mixing conditions of the metal and slag liquid have a good effect on the momentum transfer, heat energy transfer, and mass transfer of the molten pool of metal and slag. It is called "process intensification" in the industry. This is also an efficient and efficient development of modern metallurgical science and technology. Technological path to increase productivity.
- the high-speed gas jet is immersed and injected into the molten metal or slag liquid, and the high-speed gas jet is used as the carrier gas to inject solid particles into the molten metal and molten slag to form a so-called molten iron bath.
- the reaction conditions of the slag bath, the gas-solid-liquid three-phase is fully mixed under the kinetic energy of the gas jet, and the total reaction rate is further increased rapidly, especially the solid particles have a larger specific surface area than the bulk solids. , The contact with bubbles and molten pool is better, and the reaction efficiency is greatly improved.
- the steel industry has three important functions. The first is the production of steel products, which is well known to the whole society. There are also two major functions that are often not known to the public, that is, the function of processing and absorbing large amounts of solid waste from society and other industries, and the resulting energy conversion function. These latter two functions are closely related.
- the iron and steel industries in Germany, Japan and other countries have consciously dealt with social solid waste since the 1980s. For example, blast furnace injection of waste plastics instead of coal injection has achieved good results, although blast furnace injection of waste plastics is not iron melting. Bath and slag bath treatment methods, but already have the embryonic form of the iron and steel industry to achieve the second function.
- the waste is sprayed into the molten bath at a high speed, and the gasification agent is blown into it for thorough treatment and conversion.
- the hydrocarbon elements are converted into clean synthetic fuel gas, and most of the inorganic matter enters the slag, achieving reduction and no
- the synthetic gas can be used as fuel gas, or by appropriately changing the H/C ratio, it can provide qualified raw material gas for the next step of chemical synthesis, which will be able to revolutionize the human environment and energy pattern. Impact.
- a double molten bath consisting of a molten iron bath and a molten slag bath is used as a catalyst to treat solid particles of organic matter sprayed at high speed. In the presence of oxygen, the organic matter is gasified.
- Its main advantages are: (1) Ultra-high temperature and rapid cracking of hydrocarbons: the temperature of molten iron bath and molten slag bath is as high as 1400-1600°C. After organic matter is in contact, especially in the state of immersion spray, surrounded by molten iron and molten slag, the organic matter molecules are counted It quickly cracks within ten milliseconds and cracks into a carbon product.
- the carbon atoms dissolve into the molten iron, and the hydrogen atoms combine to form hydrogen molecules and escape the molten bath.
- the rapid reaction of dissolved carbon and oxygen oxygen is blown into the molten pool to form FeO with iron. FeO is in a dynamic decomposition-combination equilibrium. A certain amount of [O] is dissolved in the molten iron, and dissolved oxygen and carbon The reaction speed is 1-2 orders of magnitude faster than the reaction speed of solid carbon and oxygen in the air.
- the molten iron bath and the molten slag bath play multiple roles and functions: liquid catalyst, catalyst , Dispersant, heat storage body, flow matrix, temperature and heat buffer regulator, carbon solution, oxygen solution, carbon and oxygen rapid reaction carrier, iron liquid as sulfur absorber, gas product detergent filter, gas product purifier,
- the molten slag is an inorganic substance absorber, the high-basicity slag is the final absorber of sulfur, and the heavy-density liquid sealing body is wrapped, and so on.
- Garbage incineration In terms of the final product, garbage incineration has only heat energy and does not produce any gaseous chemical products.
- the temperature of the incineration process is generally only 600-900°C, and it is easy to produce toxic and harmful intermediate organic matter represented by dioxins. It requires the addition of high-quality fuel to increase its combustion temperature.
- the combustion process is unstable and easy to fluctuate.
- the combustion temperature is much lower than the ultra-high temperature above 1400°C in the molten iron bath. Organic matter often remains in the incineration process and requires secondary treatment.
- Plastic cracking If the plastic degrades naturally, it usually takes 300-400 years. In the molten iron bath furnace, it can be converted into clean gas in 0.1 second. Thermal cracking by other heating methods can produce some petrochemical-like hydrocarbon products, but the temperature of the conversion process is low, the amount of smoke and dust is large, a large amount of secondary pollution is generated, the amount of residue is large and complex, and secondary pollution is easy to breed, and at the same time The conversion rate is also low.
- composting fermentation produces biogas, which is a low-cost treatment method.
- biological fermentation is affected by many uncertain factors, such as season and temperature. In some cold regions, gas cannot be produced in winter, with low efficiency and slow speed, which is not suitable for large-scale transformation.
- the amount of antibiotic residues in livestock and poultry manure is very large.
- Antibiotics can kill the microorganisms originally used to decompose biomass, resulting in the loss of activity of microorganisms. Due to the extremely high temperature of the molten iron bath, the reaction speed is not affected by any natural environment, and it is a powerful tool for large-scale and rapid processing of biomass and energy conversion;
- Plasma ultra-high temperature cracking For hazardous waste, plasma high-temperature cracking methods are now commonly used.
- the plasma pyrolysis temperature has indeed achieved ultra-high temperature, which makes the hazardous waste to be treated more thoroughly cracked and transformed, but the defects are also obvious: one is that the plasma needs power consumption, and the molten iron bath itself is externally energized. One positive and one negative, showing the huge difference in economics.
- the plasma gun is expensive and has low power.
- a typical molten iron bath furnace can produce heat energy close to the GW level, while a typical plasma gun power is less than 100KW, which is about 10,000 times worse. Unable to become the mainstream bulk solid waste treatment method.
- the temperature of the plasma gun is high, the heating of the material is also exposed in the air, and the heating process may still produce the poison of the intermediate complex organic matter, and the high temperature molten iron bath is due to the sealing effect of the molten iron and the slag liquid, and the gas is rushed out After the double melting bath, there must be almost no organic components.
- molten iron baths have important advantages.
- Conventional coal gasification is often concentrated in three types: fixed bed, fluidized bed, and entrained bed, and the process equipment technology has been developed very mature, reaching the order of a single furnace that can gasify more than 2,000 tons of coal per day and night.
- the existing gasifiers are still picky about coal types, and the requirements for coal's coking property, cohesiveness, ash melting point, reactivity, particle size, thermal stability, slurryability, and moisture content are relatively harsh.
- Each gasifier has its own specific requirements for coal types, and it is not suitable for other coal types. Since the molten iron bath is an iron bath, it can gasify almost any organic matter. It is highly adaptable to different types of coal, and even domestic garbage can be gasified.
- the gasification product may not contain any oxidizing gas, the gas phase contains no sulfur, no tar and other substances, and the composition is simple and the operation is stable.
- the molten iron bath not only has great advantages in the disposal and disposal of solid waste, but also has the greater advantage of being able to remove most of the domestic garbage on the earth, agricultural and forestry wastes such as straw/twigs/sweet sorghum/sawdust/seaweed, livestock Poultry manure, waste plastics, waste rubber tires, etc. are converted into clean gas, and then into petrochemical products, such as synthetic high-quality gasoline and diesel, paraffin, naphtha, lubricants, synthetic natural gas, olefins, polyolefins, alcohol ethers and other products.
- petrochemical products such as synthetic high-quality gasoline and diesel, paraffin, naphtha, lubricants, synthetic natural gas, olefins, polyolefins, alcohol ethers and other products.
- the mass of organisms generated by photosynthesis on the earth each year is as high as 150 billion tons. After deducting the water in it, the mass of absolute dry organisms is also as high as tens of billions.
- the molten iron bath is used for treatment, it means that billions of tons of oil and gas products can be produced. Basically reach the current consumption level of fossil energy. This means that the human society on the earth can start to bid farewell to the era of fossil energy and enter the era of biomass energy by relying on the transformation effect of the molten iron bath. Relying on the process of molten iron bath to strengthen the transformation effect, photosynthesis-molten iron bath conversion, constitutes a closed loop cycle, garbage siege and dependence on fossil energy have become history.
- the molten iron bath is simple and crude, and the efficiency is extremely high. It can even be called the ultimate version of the thunder method, which is also garbage and organic solid waste. Terminator. From an energy point of view, the molten iron bath has opened up the last key link from photosynthesis to biomass to the replacement of fossil energy, opening up a new path for civilization to no longer rely on fossil energy, and also helping to end the world’s oil and gas in the Middle East. Fierce competition and competition among exporting countries.
- the core, mantle, and crust reactors carried out in the depths of the earth also have similar triple cross-border properties.
- the liquid iron-nickel alloy in the depths of the earth will slowly transport the biomass and carbonates in the shallow layers of the earth to the depths of the earth during the geological activities of the earth. After contacting the liquid iron, it will be cracked or reduced to low levels. Valence carbon element, and water will be reduced by liquid iron into hydrogen, carbon monoxide or carbon element. Under the action of extremely high pressure, certain temperature, and iron oxide catalyst, hydrogen can generate hydrocarbons and form oil and gas resources. In a sense, this slow geological process is actively applied by centuries, which means that the mantle-like reactor can greatly promote the carbon conversion of the earth.
- US Patent 1803221 proposes to introduce organic hydrocarbons into a molten metal pool to produce hydrogen, and the carbon element is dissolved in the molten metal and then oxidized by the injected oxygen.
- molten slag is used as a gasification medium, and combustible materials are sprayed below the molten slag liquid level for gasification, and the molten slag is moved.
- the molten iron bath is used as the gasification medium, and a non-immersion spray gun is used to spray hydrocarbons such as coal onto the surface of the molten iron for gasification.
- US patents US4574714 and US4602574 propose to spray toxic or waste organics into the molten pool for gasification in equipment similar to steelmaking to achieve harmless disposal.
- the US patent US6110239 uses two areas of molten iron bath to vaporize organics. One is the feeding area, which is used to contact the molten iron bath to crack the organics to generate hydrogen, which escapes separately. After the carbon is dissolved in the iron bath, it flows to the oxidation area. , Oxygen is introduced to gasify carbon, and the gas is mainly CO, so that hydrogen and CO gas are produced and collected separately. There are also US 4,187,672 and US 4,244,180 for similar fractional areas of molten iron bath gasification. There are US 4496369, US4511372, US4574714, US4602574 and so on that adopt a single gasification zone approach.
- Shandong Molong Petroleum Machinery Co., Ltd. (stock code 002490) has acquired the intellectual property rights that originally belonged to Rio Tinto's (Rio Tinto Group) fusion ironmaking HIsmlet process pilot plant in Kwinana, Australia, and renewed it in Shandong, China.
- Rio Tinto's Rosmlet process pilot plant in Kwinana, Australia
- Shandong, China led a team to conduct process research and optimization.
- the technical teams of Shandong Metallurgical Design Institute and Shougang International Engineering Co., Ltd. carried out equipment optimization and engineering construction improvements, which are better than the original factory.
- 90 tons of pulverized coal injection molten pool for gas production which provides molten pool heat and reducing agent to dissolve carbon. Its unit operation is similar to that of molten iron bath gas production.
- the produced molten iron is already commercially available to blast furnaces.
- Competitive advantage This technical achievement achieved stable operation in 2017 and was appraised in 2018.
- Spray gun life A more effective method of spraying organic particles is to spray under the molten surface.
- the molten iron produced by the blast furnace is often inserted into the molten iron for the desulfurization operation before entering the converter steelmaking, and some alkaline materials are injected for the desulfurization operation.
- This type of spray gun is made of refractory materials.
- the typical immersion time for inserting into the liquid pool is 10 minutes each time, and the life of the spray gun is only dozens of times. This is a far cry from the thousands of hours required for coal gasification, garbage and biomass gasification equipment.
- self-consumable oxygen lances are used.
- Steel pipes are not only oxygen blowing nozzles but also consumables. They are constantly being lost and continuously compensated to enable the blowing operation to continue. This can be used as a helpless choice in open operation, but the closed space required for gasification and the sealing of the insertion port also make it not a long-term feasible routine.
- the life of the spray gun is often at the level of a few hours, or even tens of hours, and the spray gun is replaced very frequently. In a short scientific experiment, it is possible to do this for several hours, but in large-scale industrial production, frequent replacement of equipment is a nightmare in the industrial production process.
- the current compromise method is that the charge spray gun is not directly inserted into the molten iron, but inserted into the slag liquid. Because the heat transfer capacity of the slag liquid is much lower than that of the molten iron, the heat flow intensity is small, and the viscosity is large, which has a scouring effect on the spray gun. Smaller, the life of the spray gun is greatly improved than in the molten iron. But even so, it is difficult for spray guns made of refractory materials to reach the ideal industrial life. Later, it was more inclined to use water-cooled spray guns, which used water cooling to take away a lot of heat, and the spray gun was cooled to prolong life.
- the slag in contact with the slag is cooled and condensed to form a condensed shell, which protects the spray gun.
- It is essentially a water-cooled casing, inside which is the real spray gun pipe.
- the material heat transfer coefficient of steel water-cooled parts is not enough. Copper materials with better heat conduction must be used. Copper materials are expensive, and the price of spray guns is therefore high.
- the copper material itself has a relatively soft texture and poor wear resistance. The wear caused by the high-speed passage of charge particles is quite large.
- the injection pipe can only be made of wear-resistant steel on the innermost side of the spray gun.
- the slag contains a certain amount of (FeO), the melting point of the slag is reduced, the fluidity is increased, and mixing is more convenient.
- FeO FeO
- the liquid slag containing FeO has extremely serious corrosion to the refractory lining. This slag is used in the industry. It is dubbed “Aqua regia", which means that after contact with refractory materials, it quickly dissolves, causing the lining material to fail and fail to serve.
- water-cooled furnace walls that is, water-cooled copper cooling staves, or even made of expensive copper-steel composite materials, where the inner wall contacts the slag to form a water-condensed shell of slag. It hinders the further transfer of heat flow. Although the heat loss has increased, it can maintain the furnace lining for a long time.
- the form of the water-cooled furnace wall can ensure the long-term use of the furnace lining, it is based on a complete set of industrial processes for equipment processing, installation, use, and maintenance. It is easier in countries with strong industrial foundations. To achieve and operate safely, in many areas with insufficient energy, relatively weak industrial foundations, and project locations with insufficient labor quality and training, the potential safety hazards and risks are also huge.
- the initially generated synthesis gas after breaking through the molten pool, has a temperature as high as about 1500°C and has a large dust content. If there is a large secondary combustion rate in the slag, the synthesis gas may be Higher temperature brings great problems to cooling and dust removal.
- the present invention provides a double-melt bath organic solid waste blowing and gasification device.
- the double-melting bath organic solid waste blowing gasification device of the present invention is used to inject organic solid waste into the molten iron bath and the molten slag bath floating on it to perform ultra-high temperature cracking and combine with the gasification agent
- the function produces combustible synthetic gas, which is characterized in that the device includes:
- a gasification furnace the gasification furnace is a closed structure, the side wall of the gasification furnace is equipped with at least one material spray gun that can spray solid particles and can be immersed in the slag bath or molten iron bath, and one installation Supersonic jet spray gun above the gasifier;
- Liquid level regulating furnace the liquid level regulating furnace is a closed structure, the bottom of the liquid level regulating furnace is communicated with the bottom of the gasification furnace through a connecting pipe, and the upper part of the liquid level regulating furnace is provided with a molten iron injection tank , The molten iron injection tank is connected with a sealed pressure-bearing mechanism, and the bottom of the liquid level regulating furnace is provided with a tap hole;
- the slagging heat exchange shaft furnace is connected to the upper part of the gasification furnace, and contains the liquid slag overflowing from the gasification furnace 201, and cools the liquid slag to a low-temperature solid phase before being discharged.
- the gasification furnace and the liquid level adjustment furnace can hold a molten iron bath (ie molten iron-based alloy liquid at 1200-1700°C.
- the molten iron-based alloy liquid is an Fe-C melt containing at least C element, and the carbon content is 2-5wt%, where the depth of the molten iron-based alloy liquid that can be contained in the gasifier is 600-2000 mm, and the thickness of the molten slag liquid above it is 500-3000 mm) and the molten slag bath above (melting slag) liquid).
- the sealed pressure-bearing mechanism on the liquid level regulating furnace can increase the gas pressure inside the liquid level regulating furnace to 2-5 atmospheres through the gas pressurization method, and force the molten iron-based alloy liquid inside the liquid level regulating furnace to flow to the gasification furnace As a result, the molten iron-based alloy liquid and molten slag liquid level in the gasifier rises, and the molten slag liquid level can immerse the nozzle of the material spray gun.
- the solid-phase particles of organic matter ejected from the material spray gun along with the carrier gas jet are injected into the slag bath to form the slag bath gasification, and further penetrate the slag bath to reach the molten iron-based alloy liquid, forming the molten iron bath gasification, and organic matter
- the CO gas and H 2 formed by hydrocarbons and oxygen escape from the molten iron bath-the molten slag bath to form a double molten bath, and move to the upper space of the gasifier as high-temperature dust-containing primary synthesis gas.
- the absolute pressure of the synthesis gas is 0.11-0.20 MPa, the whole device is in the gasification operation state; the high-temperature dust-containing primary synthesis gas is cooled and dedusted through the vaporization cooling flue, the synthesis gas continues to pass through the dust removal and waste heat boiler to further recover the sensible heat, and the vaporization cooling flue and the waste heat boiler are obtained
- the steam is used to dry the organic materials to be gasified.
- the pressure above the liquid level adjustment furnace can be adjusted to return to an atmospheric pressure, so that the molten iron-based alloy liquid level inside the liquid level adjustment furnace rises to the original position, and the molten iron-based alloy liquid in the gasifier and the molten slag liquid on it
- the surface drops to the height under normal pressure, exposing the original immersed material spray gun, the gasification operation is suspended, and the whole device enters the ready state.
- the spray gun can be maintained and replaced.
- the supersonic jet spray gun uses the supersonic jet of nitrogen to spray the molten slag accumulated at the bottom of the gasification furnace to make it splash To the furnace wall, realize the lining maintenance operation of slag splashing to protect the furnace. It is worth noting that before the operation of slag splashing and maintenance and replacement of the spray gun, the material spray gun needs to be switched to inject the slag conditioner that adjusts the composition and properties of the slag in the gasifier into the gasifier.
- the solid-phase particles of organic matter sprayed by the carrier gas jet in the material spray gun are injected into the molten slag bath.
- the solid-phase particles of organic matter are waste plastics, waste rubber and rubber tires, agricultural solid wastes, and forestry solids. Waste, livestock and poultry manure, sweet sorghum biomass, agricultural straw, domestic garbage, RDF, hazardous solid waste containing combustible components in the chemical industry, high-sulfur coal, low-quality coal, petrochemical residual combustible solid waste, etc.
- the carrier gas is one or more of compressed air, nitrogen, water vapor, gas containing VOCs, and synthesis gas return gas.
- It also includes a vaporization cooling flue, which communicates with the upper part of the gasification furnace.
- It also includes a dust removal and waste heat boiler, and the air inlet of the dust removal and waste heat boiler is communicated with the air outlet of the vaporization cooling flue.
- the vaporization cooling flue has a vertical section directly above the gasification furnace, and the inner diameter of the vertical section is 1.3 to 2 times the inner diameter of the gasification furnace.
- a gas return pipeline is connected between the dust removal and waste heat boiler and the bottom of the slagging heat exchange shaft furnace.
- the gas return pipeline is used to transport the cooled synthesis gas, air and water vapor, and absorb the sensible heat of the slag in countercurrent with the downward movement of the slag, and then merge it into the newly generated synthesis gas in the gasifier. To the cooling effect.
- the gasification furnace is equipped with at least one submerged oxygen lance that provides an oxygen-containing gas gasification agent and can be immersed in a slag bath or molten iron bath, and can inject oxygen, air, oxygen-enriched air, and preheating gas into the gasification furnace 201. Heat up to 1300°C air or oxygen-enriched air.
- the nozzle position of the material spray gun is 100-300mm above the surface of the molten iron bath and is immersed in the molten slag bath.
- the nozzle of the material spray gun and the horizontal plane are inclined downward at an angle of 40-60 degrees.
- the molten iron bath-slag bath interface intersects, and the distance between the intersection point and the geometric center of the molten iron bath-slag bath interface is not greater than 1/2 of the geometric radius of the molten iron bath-slag bath interface.
- the sealing and pressure-bearing mechanism includes a pressurizing chamber, a pressurizing air inlet, a pressure relief port and a sealing cover, and the pressurizing air inlet, the pressure relief port and the sealing cover are respectively installed on the pressurizing chamber. It is worth noting that the specific installation positions of the booster air inlet, pressure relief port and sealing cover are not limited, as long as they can achieve their respective functions.
- the sealing cover should be installed as close as possible to the molten iron injection tank to facilitate feeding.
- the side wall of the liquid level regulating furnace is equipped with an immersion fuel spray gun that can inject auxiliary slagging agents and can be immersed in the slag bath or molten iron bath, and is also equipped with an oxygen-containing gas gasification agent that can be immersed in Immersion lance for slag bath or molten iron bath.
- the bottom of the slag discharge heat exchange shaft furnace is also connected with a cold slag seal hopper, a slag lock valve is arranged between the slag discharge heat exchange shaft furnace and the cold slag seal hopper, and a valve is installed at the bottom of the cold slag seal hopper .
- the field involved in the present invention originates from the non-blast furnace ironmaking process of iron and steel metallurgy from the original process and unit operation.
- the molten iron does not increase and exists as a catalyst. Therefore, the industry does not belong to the molten pool smelting of iron and steel metallurgy or non-ferrous metal metallurgy.
- Its main function is to reduce and treat organic solid waste, including domestic waste, biomass waste, waste plastics, etc., which belongs to the environmental protection medium solid waste and hazardous waste treatment industry.
- the product is a syngas rich in CO gas and hydrogen, which can be used as a fuel and more suitable as a raw material for chemical synthesis. It belongs to the category of chemical synthesis and energy chemical industry.
- the spray gun can be pulled out as a whole for offline inspection, repair, and even replacement of some external burned and melted parts, and then Replace the repaired spray gun, and then turn on and maintain the gas supply. At this time, the liquid level can be raised to return to the set height, and the end of the spray gun can be immersed for gas production.
- the gas supply can be stopped after the spray gun is exposed, and the spray gun will not be blocked, reducing the temperature drop of the molten pool, saving heat, and saving unnecessary gas input waste. If the spray gun is kept immersed in the molten pool, the gas supply must be maintained. Even if organic materials are not sprayed for gas production, inert gas must be blown in and sprayed to prevent the spray gun from being blocked by slag and iron. The liquid level is lowered to the bare spray gun, which saves costs in the production gap and facilitates the replacement and maintenance of the spray gun.
- non-water-cooled spray guns can be used.
- the innermost layer is a material nozzle, which is made of wear-resistant steel and can be used for a long time.
- the outermost layer is knotted with refractory materials and the middle layer is used.
- High thermal resistance heat insulation material or heat insulation design can also be cooled by air flow.
- This type of spray gun is low in cost, simple, easy to process and easy to maintain.
- the middle layer and outermost refractory materials are repaired, processed, and reassembled in the machine repair unit in our factory. The spray gun can be regenerated and put into use again.
- the liquid level in the molten pool drops to a certain level, which is equivalent to emptying the entire molten iron bath in the gasifier, leaving only a certain thickness of slag layer.
- a spray gun is used to inject a certain slag conditioning agent to make the melting point and fluidity of the slag change to a certain extent, and then the spray gun or top gun is used to spray inert gas with a high-speed gas jet, so that the slag after slag adjustment is sprayed by the inert gas jet.
- the slag is sprayed onto the furnace wall, and then flows down slowly.
- the attached layer of viscous slag protects the furnace lining, which is similar to the oxygen converter steelmaking process after the tapping is completed by switching nitrogen jets. With the operation of slag splashing to protect the furnace, the lining life of the oxygen converter can reach tens of thousands of furnaces, which greatly extends the life of a furnace.
- the secondary combustion is carried out in the slag instead of in the free space above the slag. It is directly immersed in the slag for secondary combustion.
- the combustion heat is directly absorbed by the slag, and the heat utilization rate is higher, and it is also easy to transfer to the iron. Liquid, maintain the temperature and heat balance of the molten pool.
- Figure 1 is a state diagram of a binary alloy with C dissolved in molten iron
- Figure 2 is the oxidation sequence diagram of C, H, Fe elements
- Figure 3 is a priority oxidation sequence diagram for secondary combustion
- Figure 4 is a state diagram of a binary alloy with S dissolved in molten iron
- Figure 5 is a diagram showing the dissolution of CaS in the molten matte
- Figure 6 is the overall process flow diagram of the solid waste gasification of complex organics
- Figure 7 is a double-melt bath organic solid waste gas blowing device with liquid level adjustment function
- Figure 8 is a schematic diagram of the molten bath liquid level in the initial and maintenance states
- Figure 9 is a schematic diagram of the molten bath liquid level in a gasification operation state
- liquid level regulating furnace 102 liquid level regulating furnace 102, pressurizing chamber 103, pressurizing air inlet 104, pressure relief port 105, sealing cover 106, molten iron injection tank 107, tap hole 109, connecting pipe 113, molten iron ladle 131.
- the height of the molten iron bath liquid level relative to the bottom of the liquid level adjustment furnace in the initial and maintenance state h2, in the gasification state The height of the molten iron bath liquid level in the liquid level adjustment furnace h3.
- the liquid level of the molten iron bath in the gasification furnace is relative to the liquid level at the bottom of the furnace in the gasification state.
- the hydrocarbons in the organic matter are quickly cracked by heat, the carbon chain and the hydrocarbon chain are broken, and the hydrogen atoms combine to form hydrogen molecules.
- the carbon is dissolved in the molten iron, and the molten iron can be dissolved.
- the carbon content is between 3-5%, which greatly reduces the melting point of Fe-C alloy.
- the iron-carbon alloy melt with 4.3% carbon has a melting point as low as 1148°C, as shown in the Fe-C state diagram in Figure 1. . This enables the industry to maintain the iron-based alloy as a liquid melt above 1250°C, which not only reduces heat loss, but also ensures the prolonged life of the furnace lining and spray gun.
- Figure 2 is the free energy change of the oxidation reaction of the main elements C, H, and Fe in the gasification of organic matter by the molten iron-slag bath. It is similar to the Ellingham diagram used by the Institute of Metallurgical Physical Chemistry. It can be seen from it that under standard conditions, Oxygen in the molten iron bath will only preferentially oxidize the dissolved carbon and solid carbon to generate CO gas. Only when the carbon content is reduced to a very low level, the preferential oxidation of iron will occur. Oxygen is sprayed into the iron bath to generate FeO with iron. The dynamic equilibrium releases it as dissolved oxygen to a certain extent, and reacts with dissolved carbon. The reaction speed and transfer process are 1-2 orders of magnitude faster than the speed of solid carbon and gaseous molecular oxygen.
- the gasification itself can achieve heat balance, and almost all carbon atoms can be transferred to gas phase CO, and all hydrogen elements In the H2 transferred to the gas phase, the synthesis gas yield is relatively high.
- the heat release obtained according to the reaction equation (1) will cause the overheating of the entire molten pool, which requires the introduction of a certain amount of water vapor, carbon dioxide gas, air, air containing atomized water or oxygen-enriched air , Iron ore and other metal oxides are used as gasification agents to cool the molten pool.
- the reaction equation (2) due to the reaction equation (2), the proportion of hydrogen in the synthesis gas is increased, the total gas production is increased, and the calorific value of the synthesis gas is also increased correspondingly.
- CaO type auxiliary slagging agent instead of CaCO 3 type.
- the latter has a large molecular weight and will absorb heat due to thermal decomposition, and the released CO 2 as a gasification agent is also an endothermic reaction.
- the total amount of slagging agent is not very large, the heat consumption that can be reduced is not very significant;
- Figure 3 is a clear display of the part of Figure 2. It can be seen that during the secondary oxidation of CO, if oxygen comes into contact with the molten iron first, the iron will be preferentially oxidized instead of CO gas. For this reason, the oxygen that is blown into the secondary oxidation should be preferentially blown from the slag bath. It is physically isolated from a large amount of molten iron. For this reason, the oxygen used for secondary combustion is blown into the molten slag bath or free space as much as possible, and the thicker slag layer or foamed slag transfers heat to the entire molten pool.
- the insertion position of the secondary oxidation spray gun is generally on the side wall or the top, and the outlet of the immersion oxygen lance is immersed in the molten slag bath 302 or above the liquid level above the molten slag bath.
- the secondary combustion rate is generally in the range of 15-50%. This requires a layer of slag bath to be covered on the molten iron bath in order to form the necessity of a molten iron-slag double bath.
- molten iron bath Another advantage of molten iron bath is the absorption and removal of sulfur. Both coal and petroleum industry solid waste often have higher sulfur content.
- the molten iron bath can quickly absorb sulfur, so that the H2S content in the gas phase is extremely small, and even the synthesis gas and the subsequent combustion process do not need special desulfurization, for example, the sulfur content in the synthesis gas is less than 30mg/NM3. This is because iron is very easy to synthesize FeS with S, and a high concentration of FeS can be dissolved in liquid iron, as shown in the Fe-S state diagram in Figure 4.
- the molten iron exists as a contact medium. "No increase or decrease" is not the co-processing of organic solid waste in the ironmaking process. The long-term accumulation of S in the molten iron is not sustainable. For this reason, the CaO-based auxiliary slagging agent is injected into the furnace for desulfurization. After FeS comes into contact with CaO, it generates CaS and forms a low melting point sulfide phase with FeS, as shown in Figure 5. Finally, CaS dissolves in the high-alkaline oxide multi-element slag system. The ash content in the organic matter leads to an increase in the amount of slag, and it contains CaS. The slag is discharged regularly or discharged continuously by overflowing slag.
- the waste plastics often contain PVC, polyvinyl chloride, and household garbage, so that the organic matter injected into the furnace to be gasified contains higher chlorine elements.
- the chlorine element combines with H to generate HCl gas in the molten iron bath gasification process. If excessive CaO-based auxiliary slagging agent is injected at the same time, CaCl2 can be generated, most of which are dissolved in the slag, a small amount of volatilization enters the furnace gas, and the temperature is lowered later. Collected as dust ash during cooling.
- the chlorine element similar to this inorganic salt has no corrosion and health hazards to equipment and the environment.
- Heavy metals in domestic garbage and solid waste such as lead, zinc, and cadmium, can be volatilized directly into the gas phase during the gasification of molten iron bath, and then condensed and collected.
- the chlorides and oxides can be dissolved in the molten iron.
- the reduction produces metal vapor, which also enters the gas phase. After subsequent condensation, it is collected and provided as a by-product to non-ferrous metal smelting enterprises.
- Non-volatile heavy metals such as copper and nickel, directly enter the molten iron with gold, which does not affect the function of the iron bath.
- Potassium and sodium elements in organic solid waste in the process of molten iron bath gasification, transform into potassium and sodium chlorides and oxides, volatilize with the furnace gas, and enter the dust removal ash during the cooling process. After being collected, they can be used as agricultural fertilizer raw materials. deal with.
- the molten iron bath organic solid waste conversion is suitable for a variety of organic solid wastes, and even suitable for organic-inorganic mixed solid wastes.
- the solid wastes that can be treated and converted include but are not limited to: (1) ordinary various coals, high-sulfur coals, and poor quality Coal, low-rank coal, slime gangue; (2) organic solid waste, organic hazardous waste; (3) oil sludge, sludge, unusable solid waste in the petrochemical industry; (4) waste plastics, waste rubber tires; (5) ) Mixed waste containing certain combustible value, namely low-priced C and H elements; (6) Agricultural straw, agricultural processing solid waste, sweet sorghum straw in biomass; (7) Forestry processing sawdust, forestry branches, palm shells, and others Forestry solid waste; (8) Livestock and poultry manure, fishery, animal husbandry, and aquaculture solid waste; (9) moderately dried domestic garbage, RDF, etc.; (10) organic gas containing VOCs; (11) a small amount
- Figure 6 is an overall schematic diagram of clean energy conversion of all human domestic wastes and industrially discharged organic wastes through the molten iron-slag bath. Mixed wastes of complex sources. After multiple sorting and sorting, the recyclable ferrous metals (magnetic/non-magnetic), non-ferrous metals (heavy metals/light metals), glass, waste paper, waste plastics (PE/PVC/ PP/PS/ABS, etc.) are separated and regenerated. The rest cannot be used directly as materials.
- the powder spraying tank After many times of crushing, crushing, mechanical extrusion dehydration and drying (the sensible heat of the synthesis gas produced by the gasifier or its recovery is preferred After the steam heat), then enter the powder spraying tank, according to the amount of sulfur, chlorine, fluorine and other elements, mix a certain CaO-based slagging agent, spray it into the molten iron-molten slag bath, at the same time, gasification agent oxygen, preheating The oxygen-enriched air, water vapor, etc. are blown in at the same time, and according to the heat balance of the molten pool, it is equipped with the cooling gasification agent water vapor or the atomized water gas.
- the secondary combustion oxidant oxygen is blown in or preheated Oxygen-enriched air produces syngas similar to water gas with a certain degree of oxidation, and contains almost no CH 4 , H 2 S and other gases.
- the main effective component CO+H 2 accounts for more than 99% of all combustible gases.
- the synthesis gas After the synthesis gas is purified and cooled, it can be directly burned as a heat source, such as fuel for iron-making hot blast furnaces in iron and steel metallurgy, baking ladle, metal magnesium reduction, metal melting fuel, and heating, life, etc., more commonly used as natural gas Substitutes enter the boiler to produce steam or hot water, as well as gas turbine power generation, steam turbine power generation, or IGCC combined cycle power generation. At the same time, the H/C ratio can be adjusted through steam conversion to produce industrial hydrogen and provide raw materials for synthetic ammonia.
- a heat source such as fuel for iron-making hot blast furnaces in iron and steel metallurgy, baking ladle, metal magnesium reduction, metal melting fuel, and heating, life, etc., more commonly used as natural gas
- Substitutes enter the boiler to produce steam or hot water, as well as gas turbine power generation, steam turbine power generation, or IGCC combined cycle power generation.
- the H/C ratio can be adjusted through steam conversion to produce industrial hydrogen and provide
- Downstream extension products and applications include but are not limited to: (1) Gas heat; (2) steam heat; (3) power generation; (4) hydrogen; (5) synthetic artificial natural gas; (6) Fischer-Tropsch synthetic gasoline, diesel, lubricating oil, naphtha and other Fischer-Tropsch synthetic products; ( 7) Synthesize methanol, ethanol, ethylene glycol, dimethyl ether, olefins, aromatic hydrocarbons, polyolefins and other products that originally relied on petrochemicals.
- the liquid level regulating furnace (101) is connected with the bottom of the gasification furnace (201) through a communicating pipe (109).
- the upper part of the level regulating furnace (101) is connected with a molten iron injection tank (106), and the pre-melted molten iron with a temperature of 1200-1700°C is charged into the molten iron ladle (113), and from the molten iron ladle (113)
- the molten iron is injected into the molten iron injection tank (106), and the molten iron flows into the level regulating furnace (101).
- the connecting pipe (109) is also filled with molten iron.
- the surface gradually rises to the bottom of the gasifier (201).
- part of the molten slag entrained in the molten iron floats to the top of the molten iron bath (301) of the level regulating furnace (101) and the gasifier (201), and floats on the molten iron bath (301).
- Is formed on the slag bath (302), and the partly prepared slag material is sprayed appropriately from the material spray gun (7031) on the side wall of the gasification furnace (201), and at the same time from the submerged fuel spray gun on the side wall of the liquid level regulating furnace (101) (131) Blow mold flux for heat preservation of molten iron.
- the internal space pressure P1 of the liquid level regulating furnace (101) and the internal space pressure P2 of the gasification furnace are both local atmospheric pressure, the liquid level is flat, and the height of the molten iron bath liquid level relative to the bottom of the liquid level regulating furnace is h1. At this time, it is in the ready state, as shown in Figure 8.
- the molten iron injection tank (106) When deciding to start blowing material for gasification operation, perform pressurization operation.
- the molten iron injection tank (106) is placed inside a pressurized chamber (102) that can be sealed.
- the opening of the pressurized chamber (102) is used to add molten iron.
- the molten iron injection tank (106) can have a baffle to prevent the heat in the furnace from radiating outward, it will not prevent the transmission of gas pressure.
- the pressure in the space above the liquid level regulating furnace (101) and the pressurizing chamber (102) tend to be consistent to reach P1.
- the liquid level of the molten iron bath (301) in the gasifier rises, corresponding to the slag above it
- the liquid level of the bath (302) also rises accordingly.
- the booster air inlet (103) stops boosting, maintains this pressure, and monitors the booster chamber (102) during the subsequent operation. If the internal pressure is lower than the set value, the booster air inlet (103) will be opened for boosting operation; if it is higher than the set pressure, the pressure relief port (104) will be opened for pressure relief operation to restore the set pressure.
- the gasifier pressure P2 can be set to 0.13-0.20MPa, and the corresponding P1 pressure is 0.20-0.30MPa.
- the pressure difference between the two determines the height difference of the molten iron level in the two furnaces.
- ⁇ is the density of molten iron.
- the density of molten iron with higher carbon content is about 6800-7000kg/M 3. Based on this, it can be calculated that if the pressure difference is 1atm, the height difference between the two furnaces is about 1.4-1.5m.
- the slag layer in the gasifier (201) is often thicker, but because the slag layer in the gasifier (201) is always in a foamed state during the gasification process, although the slag layer is thicker, the actual density is low In the conventional static slag layer, the static pressure difference between the two parts of the slag layer is negligible in the not particularly accurate process calculation.
- the interface between the molten iron bath (301) and the molten slag bath (302) in the gasifier (201) is set at a certain distance below the material spray gun (7031) on the side wall of the gasifier. It is necessary to ensure that the molten iron bath ( 301) Do not immerse and touch the lower end of the material spray gun (7031), and ensure that the powder jet sprayed from the material spray gun (7031) obliquely downward can penetrate the slag layer and reach a certain depth of molten iron bath for better contact
- the molten iron vaporizes or carbon dissolves.
- it can be set empirically that the lower port of the material spray gun (7031) is still 200-300mm away from the static molten iron-slag interface.
- the material spray gun (7031) and the immersion oxygen lance (7032) both have been injected with inert gas such as nitrogen for spraying. All spray guns must be sprayed with inert before being immersed in the molten pool. Gas, to prevent the melt from pouring back and solidifying and blocking, this has become a basic principle.
- the immersion fuel lance (131) and immersion oxygen lance (132) on the side wall of the liquid level regulating furnace (101) should also implement this principle.
- the material spray gun (7031) and the submerged oxygen gun (7032) immersed in the slag bath (302) start to work.
- the organic solid waste particles that are dried and crushed to below 3mm are packed in the powder spray tank (210).
- the valve is opened, it is injected into the molten slag by the material spray gun (7031) with the carrier gas nitrogen jet, and flows in the strong gas jet. Under the action of energy, it penetrates the molten slag bath (302) and injects it into the molten iron bath (301).
- the ejected organic solid waste particles come into contact with the ultra-high temperature molten slag bath (302) and molten iron bath (301). , It instantly absorbs heat and bursts and cracks.
- the hydrogen element combines into hydrogen molecular bubbles and floats up.
- the carbon element is dissolved in the molten iron bath (301), which increases the carbon content of the molten iron.
- the nozzle of the material spray gun (7031) is inclined downward at an angle of 40-60 degrees with the horizontal plane, and the nozzle extension line is connected to the molten iron bath (301)-slag bath ( 302)
- the interface intersects, and the distance between the intersection point and the geometric center of the molten iron bath (301)-slag bath (302) interface is not greater than 1/2 of the geometric radius of the molten iron bath (301)-slag bath (302) interface.
- the submerged oxygen lance (7032) also switched from the temporary function of injecting nitrogen gas to prevent clogging from the ready state, and switched to the state of officially providing the vaporizing agent.
- the available gasification agents are pure oxygen, preheated oxygen-enriched air, oxygen-enriched air, preheated air, air, and water vapor, atomized water, and carbon dioxide gas that may be added to the above-mentioned main gasification agents. Wait. Among them, pure oxygen is the most beneficial for the gasification process and the gas composition produced, followed by preheated oxygen-enriched air. Water vapor, atomized water, and carbon dioxide gas cannot be used as the main gasification agent, but can only be used as an auxiliary gasification agent to cool the molten pool when the molten pool is overheated.
- the gasification agent sprayed by the immersion oxygen lance (7032) is pure oxygen as an example.
- the immersion oxygen lance (7032) and the material spray gun (7031) are arranged at a certain angle, a certain vertical interval, and a certain inclination with the horizontal plane. It can also be arranged in a concentric multilayer casing type with the material spray gun (7031).
- the pure oxygen jet is blown into the molten slag bath (302) and interacts with the iron droplets mixed in the slag liquid to generate FeO, which is dissolved in both the slag and the molten iron. It also releases oxygen atoms and reacts with the dissolved carbon in the iron.
- the rate is 1-2 orders of magnitude faster than the rate at which solid carbon particles react with oxygen molecules. A large number of CO bubbles are generated.
- Organic solid waste contains a certain amount of inorganic ash, and mixed solid wastes such as garbage also contain inorganic substances that cannot be gasified. These inorganic substances enter the slag bath (302) and become part of the slag. With the continuous progress of the blowing charge gasification process, the amount of the molten slag bath (302) continues to increase, and the molten slag bath (302) is always at a relatively intense degree of foaming and volume expansion under the agitation of the furnace gas When the total amount and expansion rate make the height of the slag bath (302) exceed the cofferdam at the junction of the slagging heat exchange shaft furnace (401) and the gasifier (201), the excess slag overflows to the slagging heat exchange The shaft furnace (401) is solidified into hot slag (410) in a solid state.
- the slagging and heat exchange shaft furnace (401) is filled with slag discharged successively from bottom to top, and the temperature of the cold slag (411) at the bottom Low, only 100-150°C, the uppermost temperature is high, the temperature of the just overflowing hot slag (410) is as high as 1400-1500°C, the heat exchange medium is cooled synthesis gas (902), or mixed with a certain amount of air, pressurized Blow from the bottom of the slagging heat exchange shaft furnace (401), absorb the sensible heat of the hot slag, and become the return hot synthetic gas (903), which enters the free space of the gasification furnace from the upper part of the slagging heat exchange shaft furnace (401) ( 303), similar to a fixed-bed gas-solid heat exchanger.
- the slag cooled by the heat exchange of the gas passes through the slag lock valve (403) below the slagging heat exchange shaft furnace (401). Without affecting the pressure of the cooled synthesis gas (902), it is regularly discharged to the cold slag below
- the slag is accumulated in the sealed hopper (402), and the slag is discharged to the slag conveying equipment (420) through the valve under the cold slag sealed hopper (402) on a regular basis, and then sent to a special slag treatment site for post-processing.
- the inorganic matter is based on the nature and Environmentally safe recovery of iron and iron oxides, recovery or disposal of inorganic salts, utilization of building materials, harmless disposal, etc.
- the new synthesis gas (901) escapes from the molten pool, the temperature is as high as 1400-1500°C, and carries a certain amount of solid and liquid impurities, flows upwards, and mixes with the return hot synthesis gas (903) gas, due to the return hot synthesis gas (903)
- the temperature is significantly lower than that of the new synthesis gas (901), causing the overall furnace gas temperature to drop.
- the diameter of the free space (303) of the gasifier includes the diameter of the slagging heat exchange shaft (401).
- the diameter of the free space (303) of the gasifier is significantly increased, the flow rate of the furnace gas decreases, and the momentum decreases. Part of the dust and liquid droplets fall down on the side walls.
- the vaporization cooling flue (501) is arranged on the side walls and the top of the free space (303) of the gasification furnace, which can absorb the heat of the furnace gas to a certain extent, so that the temperature of the furnace gas is further reduced. The speed is reduced, and the dust content is further reduced.
- the temperature may have dropped to 800-1100°C, typically less than 1000°C, and the cyclone dust removal is carried out directly to remove some large particles of dust and slag, and then enter the waste heat boiler for heat exchange.
- the superheated steam is produced, and the furnace gas is further cooled to below 200°C, and then deep dust removal is carried out such as bag and static electricity.
- the gas enters the gas storage tank for further processing or utilization, or directly supplied to downstream chemical synthesis and clean combustion.
- the gasification operation can be conveniently and flexibly stopped and enter the maintenance or waiting state, as shown in Figure 8. Ready status displayed.
- the specific method is: the pressure relief port (104) is opened to release the pressure P1 inside the pressurizing chamber (102) to normal pressure.
- the pressure above the liquid level regulating furnace (101) is restored to 1 atm, so that the liquid level regulating furnace ( 101)
- the inner molten slag and molten iron level rise correspondingly, the molten iron bath (301) and molten slag bath (302) inside the gasifier (201) drop, and the material spray gun (7031), immersion oxygen
- the gun (7032) is out of contact, and the material spray gun (7031) and the immersion oxygen gun (7032) are exposed in the free space, which is convenient to take out for offline maintenance or directly replace. While taking out the old material spray gun (7031) and immersion oxygen gun (7032), the corresponding dummy gun model can be replaced without sticking to the spray gun mouth.
- the lining can also be thermally sprayed, that is, slag splashing to protect the furnace.
- the original material spray gun (7031) is used to inject the slag conditioner into the molten iron bath (302).
- the slag conditioner is often calcined dolomite particles, Magnesia, or other inorganic materials rich in MgO, and possibly other minerals or refractory materials rich in alumina and chromium oxide, make the melting point, viscosity and fluidity of the slag meet certain requirements.
- the supersonic jet spray gun (706) can also be raised to a higher position and left idle. It can also inject oxygen-enriched air, oxygen, and preheat oxygen-enriched air to perform a certain degree of secondary combustion on the furnace gas. And transfer heat downward through the slag.
- the slag layer in the level regulating furnace (101) is immersed in the submerged fuel spray gun (131) and the submerged oxygen lance (132) on the side wall of the level regulating furnace (101), which can be sprayed A certain amount of fuel and gasification materials are fed into the molten pool in the liquid level adjustment furnace (101).
- the specific operation is similar to the carbon-oxygen reaction and secondary combustion in the gasification furnace (201).
- the difference is that the slag liquid heat compensation in the liquid level regulating furnace (101) requires the immersion fuel lance (131) and the immersion oxygen lance (132) for complete secondary combustion, leaving the heat in the molten pool to the greatest extent, and there is no The purpose of generating gas.
- the used cast iron block pre-melting methods are: other electric arc furnaces, induction melting furnaces, coal-oxygen or coke-fueled iron furnaces, or directly filling lump cast iron into the liquid level adjustment furnace (101), using immersion fuel
- the spray gun (131) and the immersion oxygen lance (132) are sprayed with fuel to melt, and a similar thermite method can also be used to melt the chemical heat in the liquid level regulator (101).
- the alumina produced by the thermite method directly enters In the slag bath (302).
- the inner height of the liquid level regulating furnace (101) is 6000mm, the inner diameter is 3500mm, the inner height of the gasification furnace (201) is 9000m, the inner diameter is 4000mm on average, the inner diameter of the connecting pipe (109) is 600mm, and the part near the liquid level regulating furnace (101) turns into Flat cross-section, the port height of the connecting part of the connecting pipe (109) and the liquid level regulating furnace (101) is 300mm high, the width is 1000mm, and the axis length is 3000mm.
- the bottom surface of the gasification furnace (201) is higher than the bottom surface of the liquid level regulating furnace (101) 2100mm.
- 143 tons of pre-melted liquid molten iron with a carbon content of 3 to 5 wt% is added to the liquid level adjusting furnace (101) and filled into the connecting pipe (109) to reach the bottom surface level of the gasification furnace (201).
- the height h1 of the molten iron level in the level regulating furnace (101) is 2100mm.
- the height difference of the liquid level is about 1750mm from h3-h2, which reduces the height h2 of the molten iron level in the liquid level adjustment furnace (101) to 850mm, and the height in the gasifier (201) rises from 0 to 900mm, relative to the liquid level adjustment
- the relative height h3 of the bottom surface of the furnace (101) is 3000 mm, excluding the molten iron in the connecting pipe (109), the mass of the molten iron in the gasifier (201) is 900 mm high and 4000 mm in diameter is about 80 tons.
- the remaining molten iron in the level regulating furnace (101) is 57 tons, and the molten iron remaining in the connecting pipe (109) is about 6 tons.
- a bending section is implemented on the side wall of the gasification furnace (201), as shown in Figure 7, so that the material spray gun (7031) and The submerged oxygen lance (7032) can be inserted into the molten pool at a steeper angle.
- the material spray gun (7031) is inserted into the gasifier (201) from the furnace wall at an angle of 50 degrees to the horizontal.
- the lower end is 1100mm from the bottom of the gasifier (201).
- the immersion oxygen lance (7032) is removed from the furnace at a 40 degree angle to the horizontal.
- the wall is inserted into the gasification furnace (201), and the lower end is 1150mm away from the bottom surface of the gasification furnace (201).
- the projection of the material spray gun (7031) and the submerged oxygen gun (7032) on the ground forms an angle of 45 degrees.
- the thickness of the slag liquid above the molten iron bath (301) in the gasifier (201) is 400-500mm, and the distance between the slag overflow and the bottom surface is 2000mm.
- the slagging heat exchange shaft furnace (401) has an inner diameter of 2000mm and an inner height of 4000mm.
- the lower air inlet introduces the cooled synthesis gas (902) that has been cooled to 200°C.
- the amount of the cooled synthesis gas (902) is equal to the amount of newly produced gas. 20-40%, after heat exchange with the hot slag (410), a return hot synthetic gas (903) is formed, mixed with the new synthetic gas (901), and used to cool the new synthetic gas (901).
- the vertical section of the vaporization cooling flue (501) has a height of 6000mm and an inner diameter of 6000mm. After reaching the top, it turns into a horizontal section or an inclined section.
- the horizontal or inclined section of the cooling flue has an inner diameter of 3000mm and a length of 10 meters.
- the supersonic jet spray gun (706) enters the furnace through the top of the vaporization cooling flue (501), and the gas type can be switched between oxygen, nitrogen, and preheated oxygen-enriched air.
- the material spray gun (7031) injects 10-20t/hr of materials below 3mm, 0.7-1.0MPa compressed nitrogen can be used as the carrier gas, the carrier gas flow rate is 1100NM 3 /hr, the immersion oxygen lance (7032) adopts supersonic jet Spraying or ordinary blowing pipe, the pressure reaches 0.8-1.2MPa, the Mach number reaches 1.5-2.0, and the flow rate can reach 15000NM 3 /hr.
- the supersonic jet spray gun (706) can inject oxygen-enriched air and preheat to 1200°C oxygen-enriched Air, industrial pure oxygen at room temperature, etc., carry out a certain degree of secondary combustion to compensate the slag thermally.
- the supersonic jet spray gun (706) is switched to nitrogen in the preparation state, and the molten slag after quenching and tempering is sprayed with a large flow to protect the furnace.
- the volume of syngas CO and H 2 produced per ton of material is 1000-2000NM 3 /t.
- High-sulfur coal is used for gasification, pure oxygen is used as the gasification agent, and the device of Example 2 above is used for injection gasification.
- the main industrial analysis, element analysis and calorific value of high-sulfur coal are as follows.
- water vapor Due to the high carbon content of the fuel, in order to prevent the overheating of the molten pool, water vapor is mixed with pure oxygen for gasification, and water vapor accounts for 22% of the volume of the gasification agent.
- the volume of synthetic fuel gas is 81% CO, H 2 volume 19%, calorific value 12.7MJ/NM, gas output 1860NM 3 /t fuel, initial coal gas temperature is 1500°C, and synthetic gas cooling waste heat produced per ton of fuel
- the recovered 1.2MPa steam is 3 tons, the carbon atom conversion rate is 99%, and the cold gas efficiency is 78%.
- the sulfur content of coal gas can be as low as 20-30ppm, which means that in the case of excess air coefficient in subsequent combustion, it is not even necessary to specifically desulfurize, or the task of desulfurization will be much reduced.
- the crude gas has a high dust content, which can reach 10-50g/M 3 , and can reach a dust content of 10 mg/M 3 after cooling and dust removal.
- Harmless, reduction, resource utilization, and energy treatment of hazardous waste including medical hazardous waste, cyanide-containing hazardous waste, waste mineral oil, pharmaceuticals and pesticides and other hazardous solid waste, organic residues, paint waste, etc., through physical forms Crushing treatment, spraying into the iron bath for gas-making reaction, obtaining CO+H 2 as the main syngas, obtaining good conversion of organic matter, inorganic matter entering the slag, spraying lime or silicon according to the level of sulfur and halogen
- the acid salt and borate are cured in the glass state to achieve reduction and harmlessness.
- the to-be-treated gas containing high-concentration VOCs can be used as the injection carrier gas for the above-mentioned solid materials or liquid combustibles, so that the VOCs can be safely disposed in the double molten bath at the same time.
- Waste rubber tires contain rubber, carbon black, sulfur, zinc oxide and steel wire.
- the above composition can be well treated and recovered in the molten iron bath-slag bath gasification process.
- the waste tires are crushed mechanically and frozen, and sprayed into a molten iron-melting slag bath.
- Oxygen or oxygen-enriched air is used for gasification.
- carbon and hydrocarbons rubber and carbon black are completely gasified into synthetic gas.
- Sulfur is absorbed by the molten iron, and then is absorbed by the sprayed additive lime and CaO in the limestone, and becomes CaS, which enters the slag and is discharged.
- ZnO is reduced by the carbon in the molten iron in the iron bath.
- ZnO acts as a weak reducing agent and gasification agent to provide oxygen and participate in the gasification of dissolved carbon in the molten iron.
- the generated metallic zinc vapor escapes the molten pool with the furnace gas, and most of it is recovered after cooling and becomes metallic zinc, and a small amount of Zn vapor is re-oxidized to ZnO and enters the dust removal ash.
- the steel wire goes directly into the iron bath and is replenished as part of the molten iron.
- biomass straw including but not limited to ordinary straw, sweet sorghum straw, forestry processing waste, forestry branches, livestock and poultry manure, etc.
- the above-mentioned biomass is first subjected to simple natural stacking and drying or mechanical extrusion to remove part of the water. Then it is deeply crushed and dried.
- the heat source used is the hot steam recovered by the sensible heat recovery device of the gasifier to dry the raw material moisture, so that the moisture content of the biomass is further reduced, and then spray into the double molten bath of the gasifier for gasification .
- a higher secondary combustion rate is used to ensure the heat balance of the molten pool, and the amount of synthesis gas obtained is 880 NM3/t raw material.
- the ammonia-containing organic matter is converted into N 2 through the iron bath, and discharged into the atmosphere in a harmless manner. Phosphorus-containing substances eventually become calcium phosphate in the slag, which can be used as agricultural soil waste.
- the mixed waste without any classification is initially crushed, sorted and sorted, and the metal, paper, glass, and plastic that can be directly recycled are separated, and then subjected to extrusion dehydration, thermal drying, evaporation and dehydration, and the use of synthetic gas and mixed gas for recovery
- the steam generated by the physical sensible heat generates electricity, and the raw material is dried and dehydrated by the steam obtained from the sensible heat of the synthesis gas. After drying, the raw material is further crushed and crushed, and then placed in a powder spraying tank.
- the chemically excessive CaO particles are prepared for other powder spraying according to their chlorine content.
- this device and method are almost suitable for the treatment of all organic solid wastes with a certain calorific value, as well as the utilization of resources, harmlessness, reduction, and energy.
- the organic matter in the mixed complex incoming materials is thoroughly utilized and converted into clean synthesis gas, and the inorganic matter is transformed or partially recycled through the molten slag.
- the more difficult it is to treat materials with a traditional lower temperature the more obvious the advantages of the ultra-high temperature and double-melting bath immersion conversion of the device and method.
- this device and method there is almost no dilemma that organic matter is difficult to deal with, there is no secondary pollution caused by the organic matter itself and its treatment process, and there is no other poison in the organic matter treatment process.
- inorganic substances can be safely disposed of to a certain extent by adjusting the alkalinity of the slag, or calcification or vitrification. More importantly, the conversion of organic matter with calorific value into universal carbon-fuel gas is not only an ideal secondary energy source, but also a raw material for the synthesis of more and more extensive chemical products.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims (10)
- 一种双熔浴有机固废喷吹气化装置,用于将有机固体废物喷吹入熔铁浴301和浮于其上的熔渣浴302,进行超高温裂解并与气化剂作用产生出可燃合成气体,其特征在于,装置包括:气化炉201,所述气化炉201为密闭式结构,所述气化炉201侧壁至少安装有一支可喷吹固体颗粒且能浸没在熔渣浴302或熔铁浴301中的物料喷枪7031,以及一支安装在气化炉201上方的超音速射流喷枪706;液面调节炉101,所述液面调节炉101为密闭式结构,所述液面调节炉101的底部通过连通管109与气化炉201的底部相连通,所述液面调节炉101的上部开设有铁液注入槽106,所述铁液注入槽106连通设置有密封承压机构,所述液面调节炉101的底部开设有出铁口107;排渣换热竖炉401,所述排渣换热竖炉401与气化炉201上部相连通,承装自气化炉201中自行溢出的液态熔渣,并冷却液态熔渣至低温固相后排出。
- 根据权利要求1所述的一种双熔浴有机固废喷吹气化装置,其特征在于:还包括有汽化冷却烟道501,所述汽化冷却烟道501与气化炉201上部相连通。
- 根据权利要求2所述的一种双熔浴有机固废喷吹气化装置,其特征在于:还包括有除尘及余热锅炉502,所述除尘及余热锅炉502的进气口与汽化冷却烟道501的出气口相连通。
- 根据权利要求2所述的一种双熔浴有机固废喷吹气化装置,其特征在于:所述汽化冷却烟道501位于气化炉201正上方具有一垂直段,且该垂直段的内径是气化炉201内径的1.3~2倍。
- 根据权利要求3所述的一种双熔浴有机固废喷吹气化装置,其特征在于:所述除尘及余热锅炉502与排渣换热竖炉401底部之间连通有气体回流管道。
- 根据权利要求1所述的一种双熔浴有机固废喷吹气化装置,其特征在于: 所述气化炉201至少安装有一支提供含氧气体气化剂且能浸没在熔渣浴302或熔铁浴301的浸没氧枪7032。
- 根据权利要求1所述的一种双熔浴有机固废喷吹气化装置,其特征在于:所述物料喷枪7031的喷口位置位于熔铁浴301液面上方100-300mm处,且浸没于熔渣浴302中,所述物料喷枪7031的喷口与水平面呈斜向下40-60度夹角,喷口延长线与熔铁浴301-熔渣浴302界面相交,且交点与熔铁浴301-熔渣浴302界面几何中心的距离不大于熔铁浴301-熔渣浴302界面几何半径的1/2。
- 根据权利要求1所述的一种双熔浴有机固废喷吹气化装置,其特征在于:所述密封承压机构包括增压室102、增压进气口103、泄压口104和密封盖105,所述增压进气口103、泄压口104和密封盖105分别安装于增压室上。
- 根据权利要求1所述的一种双熔浴有机固废喷吹气化装置,其特征在于:所述液面调节炉101侧壁安装有一支可喷吹辅助造渣剂且能浸没在熔渣浴302或熔铁浴301中的浸没燃料喷枪131,还安装有一支提供含氧气体气化剂且能浸没在熔渣浴302或熔铁浴301的浸没氧枪132。
- 根据权利要求1或5所述的一种双熔浴有机固废喷吹气化装置,其特征在于:所述排渣换热竖炉401的底部还连通设置有冷渣密封斗402,所述排渣换热竖炉401与冷渣密封斗402之间设有锁渣阀门403,所述冷渣密封斗402底部安装有阀门。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20797012.0A EP3808830B1 (en) | 2019-09-03 | 2020-03-19 | Double-melt bath organic solid waste blowing gasification device |
US17/046,771 US11795407B2 (en) | 2019-09-03 | 2020-03-19 | Gasifier for organic solid waste by injection into molten iron and slag bath |
JP2020533127A JP7128892B2 (ja) | 2019-09-03 | 2020-03-19 | 2つの溶融浴を用いた有機固体廃棄物吹き込みガス化装置 |
AU2020203716A AU2020203716B2 (en) | 2019-09-03 | 2020-03-19 | Gasifier for organic solid waste by injection into molten iron and slag bath |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910827041.0 | 2019-09-03 | ||
CN201910827041.0A CN110396435B (zh) | 2019-09-03 | 2019-09-03 | 一种双熔浴有机固废喷吹气化装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021042699A1 true WO2021042699A1 (zh) | 2021-03-11 |
Family
ID=68329763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/080167 WO2021042699A1 (zh) | 2019-09-03 | 2020-03-19 | 一种双熔浴有机固废喷吹气化装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11795407B2 (zh) |
EP (1) | EP3808830B1 (zh) |
JP (1) | JP7128892B2 (zh) |
CN (1) | CN110396435B (zh) |
AU (1) | AU2020203716B2 (zh) |
WO (1) | WO2021042699A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114958432A (zh) * | 2022-06-17 | 2022-08-30 | 杭州吉幔铁氢能科技有限公司 | 主合成气与配气分置气化的有机固废熔铁浴气化工艺 |
CN114977238A (zh) * | 2022-07-01 | 2022-08-30 | 杭州吉幔铁氢能科技有限公司 | 风电光伏耦合液氧熔铁浴气化燃气储能发电系统 |
CN117680467A (zh) * | 2023-11-21 | 2024-03-12 | 北京朝阳环境集团有限公司 | 一种厨余垃圾高温厌氧发酵工艺 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110396435B (zh) * | 2019-09-03 | 2024-08-09 | 杭州吉幔铁氢能科技有限公司 | 一种双熔浴有机固废喷吹气化装置 |
CN111638316B (zh) * | 2020-05-29 | 2022-09-16 | 鞍钢股份有限公司 | 一种模拟高炉高温段焦炭反应装置及方法 |
CN113957256A (zh) * | 2021-10-18 | 2022-01-21 | 西安西热锅炉环保工程有限公司 | 一种固废危废处置及金属熔融回收的系统及方法 |
CN114023176A (zh) * | 2021-11-03 | 2022-02-08 | 嘉兴中科海石合金技术有限公司 | 地球深处石油生成原理的科学演示装置及方法 |
CN114702254A (zh) * | 2022-03-09 | 2022-07-05 | 武汉科技大学 | 在冶金炉汽化冷却烟道中煅烧生产石灰粉的方法 |
WO2023169691A1 (en) * | 2022-03-11 | 2023-09-14 | Montanuniversität Leoben | Processing a hydrocarbon using pyrolysis, method and apparatus |
WO2024151768A1 (en) * | 2023-01-11 | 2024-07-18 | Charm Industrial, Inc. | Systems and methods for self-reduction of iron ore |
CN117550633B (zh) * | 2023-11-13 | 2024-06-04 | 潍坊龙达锌业有限公司 | 氧化锌生产传热改进方法 |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1803221A (en) | 1929-01-25 | 1931-04-28 | Ici Ltd | Production of hydrogen |
US2647045A (en) | 1948-12-06 | 1953-07-28 | Rummel Roman | Gasification of combustible materials |
US4187672A (en) | 1977-11-17 | 1980-02-12 | Rasor Associates, Inc. | Apparatus for converting carbonaceous material into fuel gases and the recovery of energy therefrom |
US4244180A (en) | 1979-03-16 | 1981-01-13 | Rasor Associates, Inc. | Process for producing fuel gases from carbonaceous material |
US4388084A (en) | 1980-12-01 | 1983-06-14 | Sumitomo Metal Industries, Ltd. | Process for gasification of solid carbonaceous material |
US4496369A (en) | 1982-07-01 | 1985-01-29 | Ips Interproject Service Ab | Apparatus for gasification of carbon |
US4511372A (en) | 1981-05-20 | 1985-04-16 | Ips Interproject Service Ab | Carbon gasification method |
US4574714A (en) | 1984-11-08 | 1986-03-11 | United States Steel Corporation | Destruction of toxic chemicals |
US4602574A (en) | 1984-11-08 | 1986-07-29 | United States Steel Corporation | Destruction of toxic organic chemicals |
US6110239A (en) | 1996-05-31 | 2000-08-29 | Marathon Ashland Petroleum Llc | Molten metal hydrocarbon gasification process |
WO2014132230A1 (en) * | 2013-02-28 | 2014-09-04 | How Kiap Gueh | Molten metal gasifier |
CN106086281A (zh) * | 2016-06-29 | 2016-11-09 | 东北大学 | 一种闪速炼铁与煤制气的一体化装置及方法 |
CN106753573A (zh) * | 2016-12-26 | 2017-05-31 | 东北大学 | 一种电弧炉双室铁浴煤气化的电网调峰系统及方法 |
CN208362272U (zh) * | 2017-12-09 | 2019-01-11 | 李江平 | 一种可进行生活垃圾气化熔融处理的装置 |
JP2019073638A (ja) * | 2017-10-17 | 2019-05-16 | Jfeエンジニアリング株式会社 | 廃棄物ガス化処理方法 |
CN110396435A (zh) * | 2019-09-03 | 2019-11-01 | 牛强 | 一种双熔浴有机固废喷吹气化装置 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB930329A (en) * | 1961-02-17 | 1963-07-03 | Power Gas Ltd | Improvements in or relating to apparatus and methods for the discharge of molten slag from shaft furnaces and to methods of operating such furnaces |
DE3031680A1 (de) * | 1980-08-22 | 1982-03-11 | Klöckner-Werke AG, 4100 Duisburg | Verfahren zur gaserzeugung |
US4659375A (en) * | 1980-10-14 | 1987-04-21 | Geskin Ernest S | Method of heating, melting and coal conversion |
DE3231531A1 (de) * | 1982-03-05 | 1983-09-15 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Verfahren und reaktor zur erzeugung von im wesentlichen co und h(pfeil abwaerts)2(pfeil abwaerts) enthaltendem gas |
MX164808B (es) * | 1983-06-20 | 1992-09-25 | Hylsa Sa | Metodo mejorado continuo para extraer escoria de un sistema de reaccion presurizado |
CN1033276C (zh) | 1993-05-12 | 1996-11-13 | 中国科学院化工冶金研究所 | 煤-氧-矿-熔剂复合喷射铁浴造气炼铁的工艺及所用的喷枪 |
RU2038537C1 (ru) | 1993-08-10 | 1995-06-27 | Гонопольский Адам Михайлович | Способ термической переработки отходов и устройство для его осуществления |
JPH11310812A (ja) * | 1998-04-28 | 1999-11-09 | Nkk Corp | 廃プラスチックを用いた環境調和型の溶融還元製錬法 |
JPH11193410A (ja) * | 1997-12-26 | 1999-07-21 | Nkk Corp | 溶銑精錬法 |
AUPQ076399A0 (en) * | 1999-06-04 | 1999-06-24 | Technological Resources Pty Limited | A direct smelting process and apparatus |
AU2002358010A1 (en) * | 2002-11-14 | 2004-06-03 | David Systems Technology, S.L. | Method and device for integrated plasma-melt treatment of wastes |
CA2486318C (en) * | 2003-11-07 | 2011-03-29 | Nexterra Energy Corporation | An apparatus and method for gasifying solid organic materials |
CN101248312A (zh) | 2005-04-12 | 2008-08-20 | Ze-Gen公司 | 使用金属熔池的方法及其装置 |
CN101214936B (zh) * | 2008-01-10 | 2010-08-25 | 四川川恒化工股份有限公司 | 磷矿石熔融生产黄磷的方法 |
US8303916B2 (en) * | 2008-02-01 | 2012-11-06 | Oscura, Inc. | Gaseous transfer in multiple metal bath reactors |
FR2929955B1 (fr) | 2008-04-09 | 2012-02-10 | Saint Gobain | Gazeification de materiaux organiques combustibles |
CN101956035B (zh) * | 2010-05-20 | 2012-05-23 | 莱芜美澳冶金科技有限公司 | 一种含铁物料渣浴熔融还原炼钢工艺方法及装置 |
MX2013001378A (es) * | 2010-08-03 | 2014-01-31 | Hwang Jiannyang | Metodo y aparato para co-produccion de arrabio y gas de sintesis de alta calidad. |
CN104671657B (zh) * | 2015-02-10 | 2017-04-05 | 牛强 | 硅氧化制取岩棉熔体联产合金钢液的方法 |
CN105176595B (zh) | 2015-09-23 | 2018-02-09 | 清华大学 | 气化炉和对含碳原料进行气化处理的方法 |
US10435295B2 (en) * | 2016-12-01 | 2019-10-08 | Thomas L Eddy | Coupling an electric furnace with a liquid fuel synthesis process to improve performance when processing heterogeneous wastes |
CN107189821A (zh) * | 2017-07-19 | 2017-09-22 | 中国华能集团清洁能源技术研究院有限公司 | 一种干煤粉耦合生物质共气化下行激冷气化炉 |
CN210765189U (zh) * | 2019-09-03 | 2020-06-16 | 牛强 | 一种双熔浴有机固废喷吹气化装置 |
-
2019
- 2019-09-03 CN CN201910827041.0A patent/CN110396435B/zh active Active
-
2020
- 2020-03-19 EP EP20797012.0A patent/EP3808830B1/en active Active
- 2020-03-19 AU AU2020203716A patent/AU2020203716B2/en active Active
- 2020-03-19 WO PCT/CN2020/080167 patent/WO2021042699A1/zh unknown
- 2020-03-19 JP JP2020533127A patent/JP7128892B2/ja active Active
- 2020-03-19 US US17/046,771 patent/US11795407B2/en active Active
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1803221A (en) | 1929-01-25 | 1931-04-28 | Ici Ltd | Production of hydrogen |
US2647045A (en) | 1948-12-06 | 1953-07-28 | Rummel Roman | Gasification of combustible materials |
US4187672A (en) | 1977-11-17 | 1980-02-12 | Rasor Associates, Inc. | Apparatus for converting carbonaceous material into fuel gases and the recovery of energy therefrom |
US4244180A (en) | 1979-03-16 | 1981-01-13 | Rasor Associates, Inc. | Process for producing fuel gases from carbonaceous material |
US4388084A (en) | 1980-12-01 | 1983-06-14 | Sumitomo Metal Industries, Ltd. | Process for gasification of solid carbonaceous material |
US4511372A (en) | 1981-05-20 | 1985-04-16 | Ips Interproject Service Ab | Carbon gasification method |
US4496369A (en) | 1982-07-01 | 1985-01-29 | Ips Interproject Service Ab | Apparatus for gasification of carbon |
US4602574A (en) | 1984-11-08 | 1986-07-29 | United States Steel Corporation | Destruction of toxic organic chemicals |
US4574714A (en) | 1984-11-08 | 1986-03-11 | United States Steel Corporation | Destruction of toxic chemicals |
US6110239A (en) | 1996-05-31 | 2000-08-29 | Marathon Ashland Petroleum Llc | Molten metal hydrocarbon gasification process |
WO2014132230A1 (en) * | 2013-02-28 | 2014-09-04 | How Kiap Gueh | Molten metal gasifier |
CN106086281A (zh) * | 2016-06-29 | 2016-11-09 | 东北大学 | 一种闪速炼铁与煤制气的一体化装置及方法 |
CN106753573A (zh) * | 2016-12-26 | 2017-05-31 | 东北大学 | 一种电弧炉双室铁浴煤气化的电网调峰系统及方法 |
JP2019073638A (ja) * | 2017-10-17 | 2019-05-16 | Jfeエンジニアリング株式会社 | 廃棄物ガス化処理方法 |
CN208362272U (zh) * | 2017-12-09 | 2019-01-11 | 李江平 | 一种可进行生活垃圾气化熔融处理的装置 |
CN110396435A (zh) * | 2019-09-03 | 2019-11-01 | 牛强 | 一种双熔浴有机固废喷吹气化装置 |
Non-Patent Citations (5)
Title |
---|
"Coal Gasification Production Technology", CHEMICAL INDUSTRY PRESS |
DONGBO LIXUEGANG CHENZHONGSHI WANG: "Side-Blown Metallurgy Technology of Modern NonFerrous Metals", 2019, METALLURGICAL INDUSTRY PRESS |
JIANKUN ZHUOCHAO CHENQIANG YAO: "Clean Coal Technology", 2015, CHEMICAL INDUSTRY PRESS |
PROFESSOR SHULIN LIUPROFESSOR TIANJUN YANG: "smelting reduction technology", 1989, METALLURGICAL INDUSTRY PRESS |
PROFESSOR TIANJUN YANGDR. DIANBING HUANGPROFESSOR LINGTAN KONG: "Smelting reduction", 1998, METALLURGICAL INDUSTRY PRESS, article "Metallurgical Reaction Engineering Series" |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114958432A (zh) * | 2022-06-17 | 2022-08-30 | 杭州吉幔铁氢能科技有限公司 | 主合成气与配气分置气化的有机固废熔铁浴气化工艺 |
CN114977238A (zh) * | 2022-07-01 | 2022-08-30 | 杭州吉幔铁氢能科技有限公司 | 风电光伏耦合液氧熔铁浴气化燃气储能发电系统 |
CN117680467A (zh) * | 2023-11-21 | 2024-03-12 | 北京朝阳环境集团有限公司 | 一种厨余垃圾高温厌氧发酵工艺 |
Also Published As
Publication number | Publication date |
---|---|
JP7128892B2 (ja) | 2022-08-31 |
EP3808830A4 (en) | 2021-10-06 |
AU2020203716B2 (en) | 2021-06-17 |
US20210324280A1 (en) | 2021-10-21 |
CN110396435B (zh) | 2024-08-09 |
CN110396435A (zh) | 2019-11-01 |
EP3808830B1 (en) | 2022-08-17 |
EP3808830A1 (en) | 2021-04-21 |
JP2022501446A (ja) | 2022-01-06 |
AU2020203716A1 (en) | 2021-03-18 |
US11795407B2 (en) | 2023-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021042699A1 (zh) | 一种双熔浴有机固废喷吹气化装置 | |
US4153426A (en) | Synthetic gas production | |
CN103436296B (zh) | 一种加压固定床熔渣气化炉 | |
CN102459654B (zh) | 生产铁、半钢和还原气体的装置及方法 | |
KR101424155B1 (ko) | 가스/스팀 터빈 발전소에서 전기 에너지를 생성하는 방법 및 설비 | |
US6030430A (en) | Blast furnace with narrowed top section and method of using | |
CN108517387B (zh) | 一种转炉煤气净化及余热回收利用系统 | |
US20150152344A1 (en) | Melt gasifier system | |
CN109054874B (zh) | 基于转炉烟尘余热利用的医疗垃圾处理方法 | |
Zhang et al. | Future trend of terminal energy conservation in steelmaking plant: Integration of molten slag heat recovery-combustible gas preparation from waste plastics and CO2 emission reduction | |
CN112283715A (zh) | 一种流化床气化熔融处置固废危废的方法及其设备 | |
CN210765189U (zh) | 一种双熔浴有机固废喷吹气化装置 | |
CN219279811U (zh) | 大宗固废气化熔融炉 | |
CN113025388A (zh) | 一种城市固废和二氧化碳共资源化利用的方法 | |
CN116286104A (zh) | 一种气化炉 | |
CN203474733U (zh) | 一种加压固定床熔渣气化炉 | |
EP3044292B1 (de) | Verfahren und anlage zur vergasung von kohlenstoffträgern und weiterverarbeitung des produzierten gases | |
JPH03501678A (ja) | エネルギを生成し且つ鋼鉄等の鉄材を製造する方法 | |
JP6777110B2 (ja) | 有機物質の熱分解方法及び熱分解設備 | |
CN111218535A (zh) | 熔铁浴煤制气加热循环还原气生产直接还原铁的方法 | |
JP2002371307A (ja) | 有機系又は炭化水素系廃棄物のリサイクル方法及びリサイクルに適した高炉設備 | |
CN116286096A (zh) | 大宗固废气化熔融炉及气化熔融方法 | |
CN112760137A (zh) | 一种多段气流床煤炭气化及悬态熔融还原冶炼一体化节能环保装置和方法 | |
JPH09184004A (ja) | 鉄併産型の石炭灰の溶融方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2020533127 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2020797012 Country of ref document: EP Effective date: 20201104 |
|
ENP | Entry into the national phase |
Ref document number: 2020203716 Country of ref document: AU Date of ref document: 20200319 Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20797012 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |