US20150143809A1 - Environmentally friendly and high efficiency solid fuel production method using high-water-content organic waste, and combined heat and power system using same - Google Patents

Environmentally friendly and high efficiency solid fuel production method using high-water-content organic waste, and combined heat and power system using same Download PDF

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US20150143809A1
US20150143809A1 US14/401,607 US201314401607A US2015143809A1 US 20150143809 A1 US20150143809 A1 US 20150143809A1 US 201314401607 A US201314401607 A US 201314401607A US 2015143809 A1 US2015143809 A1 US 2015143809A1
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solid fuel
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Jae-Hyeon Ha
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/42—Solid fuels essentially based on materials of non-mineral origin on animal substances or products obtained therefrom, e.g. manure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/403—Solid fuels essentially based on materials of non-mineral origin on paper and paper waste
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/406—Solid fuels essentially based on materials of non-mineral origin on plastic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
    • C10L9/086—Hydrothermal carbonization
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/14—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours using industrial or other waste gases
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0461—Fractions defined by their origin
    • C10L2200/0469—Renewables or materials of biological origin
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2270/00—Specifically adapted fuels
    • C10L2270/04—Specifically adapted fuels for turbines, planes, power generation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08—Drying or removing water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/24—Mixing, stirring of fuel components
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/28—Cutting, disintegrating, shredding or grinding
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/48—Expanders, e.g. throttles or flash tanks
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/50—Screws or pistons for moving along solids
    • 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
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • the present invention relates to an environmentally friendly and high efficiency solid fuel production method using a high-water-content organic waste and a combined heat and power system using the same while noticeably reducing bad smell.
  • Organic waste such as sludge, livestock excretions in general is treated using a technology such as incineration, fermentation, direct or indirect drying, etc.
  • incineration it produces dioxin and a lot of harmful substance and requires a large amount of externally supplied energy along with increased installation cost, so the above-mentioned incineration has a disadvantage in that it is not economical.
  • a large amount of energy is required so as to lower the water content from 80% to 15% in the course of direct or indirect drying, and bad smell generates from solid fuel during the drying process and after the drying process.
  • the fermentation it have some problems in that a lot of bad smell generates, and energy efficiency is low, and it takes long time to treat waste water.
  • a technology for developing a solid fuel is going on so as to treat high-water-content organic waste into energy source. In this case, it necessarily needs to lower the water content below 15%.
  • Such a solid fuel process technology is categorized into drying and carbonization. In terms of the total amount of energy, the drying is most preferred. The bad smell generating in the course of the drying and the bad smell generating in the course of the storing and use of the produced fuel become problematic.
  • an environmentally friendly and high efficiency solid fuel production method using a high-water-content organic waste comprising:
  • a waste mixing step where a high-water-content organic waste and a municipal solid waste are inputted and mixed in a Fe-based reactor
  • a hydrolysis step where a mixture of the organic waste and the municipal solid waste is pressurized by adding high temperature vapor into the reactor and is agitated in the pressurized state for thereby hydrolyzing the mixture
  • a depressurization step where the reactor is controlled to remain in normal state after the interior of the reactor is suddenly depressurized by discharging the vapor from the interior of the reactor, and the mixture is crushed by depolymerizing the organic waste treated through the step (b) or by increasing the specific surface area of the municipal solid waste treated through the step (b);
  • a vacuum or differential pressure step where water is eliminated from the reactant treated through the step (c) by providing the vacuum or differential pressure condition to the reactor
  • a solid fuel preparation step where a solid fuel of which the water content is 10 ⁇ 20% is prepared by naturally drying the reactant treated through the step (d).
  • the present invention is characterized in that the solid fuel may be produced by efficiently drying the internal water of the organic waste in such a way to much more effectively degrade the organic matter and bad smell with the aid of the degrading power of vapor radical and the promoted peptone reaction by the Fe reaction catalyst by inputting and mixing high-water-content organic waste and municipal solid waste into a Fe-based reactor and adding high temperature and pressure vapor and in such a way to completely crush and degrade the organic waste based on the sudden depressurization.
  • the present invention makes it possible to produce solid fuel within a short time by greatly enhancing the efficiency of drying in such a way that the non-degraded organic waste is depolymerized through the sudden depressurization after high temperature and pressure vapor is inputted and that the specific surface area is increased by expanding the municipal solid waste.
  • the solid fuel produced according to the present invention may be provided as a good energy source which may substitute fossil energy thanks to its high calorific power. So, it is possible to efficiently generate electricity based on the combined heat and power generator system using the above mentioned energy source.
  • FIG. 1 is a view illustrating a treatment system of a high-water-content organic waste according to the present invention.
  • FIG. 2 is an ion product change and permittivity change curve of water.
  • the present invention is directed to an environmentally friendly and high efficiency solid fuel production method using a high-water-content organic waste which makes it possible to efficiently dry the internal water of the organic waste in such a way to much more effectively degrade the organic matter and bad smell with the aid of the degrading power of vapor radical and the promoted peptone reaction by the Fe reaction catalyst by inputting and mixing high-water-content organic waste and municipal solid waste into a Fe-based reactor and adding high temperature and pressure vapor and in such a way to completely crush and degrade the organic waste based on the sudden depressurization.
  • the present invention is directed to a solid fuel production method using a high-water-content organic waste, which includes (a) a waste mixing step where a high-water-content organic waste and a municipal solid waste are inputted and mixed in a Fe-based reactor; (b) a hydrolysis step where a mixture of the organic waste and the municipal solid waste is pressurized by adding high temperature vapor into the reactor and is agitated in the pressurized state for thereby hydrolyzing the mixture; (c) a depressurization step where the reactor is controlled to remain in normal state after the interior of the reactor is suddenly depressurized by discharging the vapor from the interior of the reactor, and the mixture is crushed by depolymerizing the organic waste treated through the step (b) or by increasing the specific surface area of the municipal solid waste treated through the step (b); (d) a vacuum or differential pressure step where water is eliminated from the reactant treated through the step (c) by providing the vacuum or differential pressure condition to the reactor; and (e) a solid fuel preparation step where a solid fuel
  • the step (a) is a step where high-water-content organic waste and municipal solid waste are inputted and mixed in a Fe-based reactor.
  • the high-water-content organic waste is one or at least one selected from the group consisting of livestock excretions, sewage sludgy, and food waste and contains more than 80% of water content, and the municipal solid waste preferably contains kind of paper and plastics.
  • the municipal solid waste containing such paper and plastics each having increased specific surface area reacts while expanding together with the organic waste which was depolymerized by means of the depressurization in the depressurization step, so the drying efficiency may be maximized.
  • the plastics-based municipal solid waste which is a kind of a petroleum-based organic substance is contained, it is possible to enhance the low calorific power of the produced solid fuel.
  • the municipal solid waste contains 50 ⁇ 55% by weigh of paper, and 40 ⁇ 45% by weight of plastics.
  • the high-water-content organic waste and the municipal solid waste are inputted and mixed at a ratio of 3.5 ⁇ 4:0.5 ⁇ 1.
  • the high-water-content organic waste and the municipal solid waste are inputted and mixed in the reactor at a filling ratio of 70 ⁇ 90%. Since high temperature and pressure vapor may be supplied from outside the reactor even though the waste, which will be treated, is inputted into the reactor at such high charging rate, and the contact-based reaction with the saturated vapor can be maintained, so that it is possible to enhance the efficiency of reaction in the highest process capacity of the wastes.
  • the step (b) is a step where a mixture of the organic waste and the municipal solid waste is pressurized by supplying high temperature of vapor into the reactor, and the mixture is agitated in the pressurized state and is hydrolyzed.
  • the substance belonging to the organic waste is degraded and depolymerized by the pressurization, and the bad smell containing sulfuric acid is degraded, so the water content of the organic waste may be greatly lowered thanks to the high temperature while eliminating bad smell.
  • the mixture may be agitated and undergo the hydrolysis reaction after the internal pressure of the reactor is made to 20 ⁇ 25 atm by supplying the vapor of 200 ⁇ 250° C. into the reactor.
  • the ion product reaction is most active at the temperature of 200 ⁇ 250° C. and shows 1,000 times higher activity as compared with the room temperature. Since the permittivity lowers to 1 ⁇ 3 ⁇ 1 ⁇ 4 as compared with the room temperature, a potential difference occurs between the ions, which would result in increased organic substance degradation performance. If it is below the range of the above temperature and pressure, it is hard to obtain the desired effect, and when it is above the range of the above temperature and pressure, the loss in energy may occur.
  • step (b) of the present invention since the supply of the vapor is performed using a boiler which is connected to the reactor, the organic waste in the reactor comes into contact with the vapor from the boiler and physically and chemically reacts for thereby greatly enhancing the efficiency of the reaction without any procedure where the water changes to high temperature water in such a way that it is sprayed while coming into direct contact with the low temperature organic waste.
  • the vapor since the vapor is supplied using the externally supplied boiler, any phenomenon where it reacts with high temperature water does not occur, so the reaction may be maintained even when the amount of the waste increases. Therefore, the mixture of the waste, which will be treated, is charged up to 70 ⁇ 90% of the reactor, thus causing a contact-based reaction with the vapor.
  • the efficiency of the reaction may be greatly enhanced thanks to the catalyst reaction of Fe, in particular the promoted peptone reaction in the region where the saturated vapor occupies in the reactor, and an organic membrane of 1 ⁇ 2 mm is formed in the inner side of the reactor based on the process and operation of the reactor, so it is possible to prevent any corrosion due to NaCl, etc.
  • the step (c) of the present invention is a step where the reactor is controlled to remain in normal state after the pressure inside of the reactor is suddenly depressurized by discharging the vapor from the interior of the reactor, so that the organic waste treated through the step (b) is depolymerized or the specific surface area of the municipal solid waste treated through the step (b) is increased, and the municipal solid waste is crushed, more specifically, the step (c) is a step where the reactant pressurized by high temperature vapor is suddenly depressurized, and the volume of increased, thus depolymerizing the reactant or crushing the reactant.
  • the drying time may be shortened because such municipal solid waste is reacted with the water-content organic matter and is dried, thus greatly enhancing the efficiency of the drying.
  • the pressure is suddenly depressurized so that the atmosphere may become 0.9 ⁇ 1.1 atm by discharging the vapor inside of the reactor for 10 ⁇ 120 seconds.
  • the step (d) of the present invention is a step where the moisture is eliminated from the reactant treated through the step (c) by adopting the vacuum or differential pressure condition to the reactor. It is preferred that the moisture is eliminated by 5 ⁇ 10% from the reactant treated through the step (c) by adopting the vacuum or differential pressure condition or 10 ⁇ 15 minutes to the reactor using the vacuum pump connected to the reactor.
  • the step (e) of the present invention is a step where the reactant treated through the step (d) is naturally dried for thereby producing solid fuel of which the water content is 10 ⁇ 20%. It is preferred that the solid fuel having low calorific power of above 5,000 kcal/kg is produced.
  • the present invention relates to the combined heat and power generator system using the solid fuel produced using the above-described method.
  • the present invention provides the combined heat and power generator system characterized in that the solid fuel (RDF) is produced from high-water-content organic waste and municipal solid waste, and superheated vapor is produced by supplying the solid fuel to the RDF-based burner and boiler, and electricity may be generated by the steam-based power generation system which uses the superheated vapor.
  • RDF solid fuel
  • superheated vapor is produced by supplying the solid fuel to the RDF-based burner and boiler, and electricity may be generated by the steam-based power generation system which uses the superheated vapor.
  • a batch reactor made of a Fe material and having a dimension of 5 m 3 was manufactured.
  • 3.5 tons of livestock excretions of which the water-content was 80 ⁇ 85% and 0.5 ⁇ 1 tones of paper Municipal Solid Waste (MSW) were inputted into the reactor as soon as possible, and the input port of the top of the reactor was closed.
  • MSW Municipal Solid Waste
  • the livestock and the MSW were mixed, and vapor of 210° C. was supplied for the internal pressure of the reactor to become 23 atm.
  • the inputted saturated vapor or superheated vapor reached the reaction condition within about 3 ⁇ 5 minutes in the vapor supply-dedicated boiler of the top of the previously prepared reactor, so the supply of the vapor was stopped.
  • the supplied vapor and target waste were agitated at 10 ⁇ 15 rpm so that the supplied vapor and target waste physically and chemically reacted.
  • the saturated vapor or superheated vapor was intermittently supplied so as to maintain the atmosphere of 23 atm at 210° C.
  • the above-described state was maintained for 30 ⁇ 60 minutes depending on the physical property of the treatment target in order for the peptone reaction to take place enough based on the catalyst operation by the vapor, the treatment target organic matter and the Fe-based reactor.
  • the organic matter and the organic cell or MSW which had not been degraded during the above-mentioned reaction, were depolymerized or crushed by quickly discharging the vapor through the vapor discharge port by opening the pressure reducing valve until the pressure became the atmospheric pressure (1-atm) within 2 minutes.
  • About 5 ⁇ 10% of the total water of the reactant was eliminated by performing the vacuum (differential pressure) process for about 10 ⁇ 15 minutes using the external vacuum (differential pressure) pump so as to eliminate the water from the reactant in the reactor under the high vacuum or differential pressure condition after the processes for depolymerizing and crushing the reactant.
  • the product produced after the reaction was moved to the natural drying place and was naturally dried, so that the final solid fuel of which the water content was 15% was produced.
  • the solid fuel was produced by the method of the first exemplary embodiment, wherein the solid fuel was produced without adding the municipal solid waste (MSW).
  • MSW municipal solid waste
  • the solid fuel was produced by the method of the first exemplary embodiment, wherein the solid fuel was produced without performing a process for suddenly depressurizing by discharging the vapor after the pressurization.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
US14/401,607 2012-05-17 2013-05-15 Environmentally friendly and high efficiency solid fuel production method using high-water-content organic waste, and combined heat and power system using same Abandoned US20150143809A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2012-0052662 2012-05-17
KR1020120052662A KR101313314B1 (ko) 2012-05-17 2012-05-17 고함수 유기성 폐기물을 이용한 친환경·고효율의 고형연료 제조방법 및 이를 이용한 열병합 발전 시스템
PCT/KR2013/004323 WO2013172661A1 (ko) 2012-05-17 2013-05-15 고함수 유기성 폐기물을 이용한 친환경·고효율의 고형연료 제조방법 및 이를 이용한 열병합 발전 시스템

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