WO2006006606A1 - Procede de production de combustible et appareil de production de combustible - Google Patents

Procede de production de combustible et appareil de production de combustible Download PDF

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Publication number
WO2006006606A1
WO2006006606A1 PCT/JP2005/012864 JP2005012864W WO2006006606A1 WO 2006006606 A1 WO2006006606 A1 WO 2006006606A1 JP 2005012864 W JP2005012864 W JP 2005012864W WO 2006006606 A1 WO2006006606 A1 WO 2006006606A1
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WO
WIPO (PCT)
Prior art keywords
pressure
mpa
processing container
temperature
waste
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Application number
PCT/JP2005/012864
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English (en)
Japanese (ja)
Inventor
Joji Takase
Original Assignee
Nishimuragumi Co., Ltd.
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Filing date
Publication date
Application filed by Nishimuragumi Co., Ltd. filed Critical Nishimuragumi Co., Ltd.
Publication of WO2006006606A1 publication Critical patent/WO2006006606A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
    • 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
    • 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
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • 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
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing

Definitions

  • the present invention relates to a technique for changing properties to effectively reuse waste, and particularly suitable for use with waste having high water content such as raw sludge, fish residue, manure and the like as fuel.
  • the present invention relates to a fuel manufacturing method and a fuel manufacturing apparatus that are suitable for the conversion process.
  • Patent Document 1 discloses a raw material processing method for processing raw materials such as food residues, wood, and paper into feed and fertilizer (Patent Document 1).
  • saturated steam is introduced between the treatment kettle and the heat-retaining kettle to keep the inside of the treatment kettle at a predetermined temperature or more, and raw materials such as food residues are introduced into the kettle, and saturated steam is introduced to the predetermined pressure. It is steamed under temperature, then hydrolyzed, pyrolyzed, dried and carbonized with stirring, and finally used as feed and fertilizer.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2003-47409
  • an object of the present invention is to produce feed and fertilizer without generating harmful substances from raw materials such as food residue wood and paper.
  • the company is only seeking the appropriate processing conditions. Therefore, it is not necessarily the optimum condition for use for purposes other than feed and fertilizer.
  • the appropriate treatment conditions differ depending on the properties of the waste that is the treatment target.In particular, treatment at high temperatures and treatment under high pressure greatly change the properties. It must be specifically processed! / ⁇ .
  • the waste used as fuel is a highly humid material such as raw garbage or sewage sludge
  • the pyrolysis gas is very difficult to pyrolyze because its water content is 80% or more.
  • a method has also been proposed in which highly humid waste is sufficiently dried in advance and then used as fuel for gasification power generation.
  • the conventional processing has a problem that the processing cost becomes high because the processing time is considerably long.
  • the present invention has been made in order to solve such problems, and is capable of removing harmful substances without generating harmful substances such as dioxin, and is also a waste having a high water content. Even in such a case, it is possible to reduce the processing cost by treating it in a short time, while reducing the moisture content while suppressing the loss of calorific value, removing bad odors, and converting it into properties suitable for use as fuel.
  • An object of the present invention is to provide a fuel manufacturing method and a fuel manufacturing apparatus.
  • a feature of the fuel production method and the fuel production apparatus is that the pressure in the processing container is maintained at 1.96 MPa or more by injecting high-pressure steam into the processing container in which waste is charged.
  • the temperature is raised, and the injection of the high-pressure steam is stopped when the material part temperature in the lower part of the processing container matches the gap part temperature in the upper part of the processing container.
  • the material part temperature is the temperature of the processing material (waste) in the lower part of the processing container or the temperature on the inner surface of the processing container in contact with the processing material (waste).
  • the void temperature is the temperature of the void in the upper part of the processing container.
  • the fuel production method and the fuel production apparatus according to the present invention are characterized in that the pressure in the processing container is set to 1.96 MPa or more by injecting high-pressure steam into the processing container in which waste is charged. 3. Hold at 43MPa or less and at least under the treatment container The high-pressure steam is injected until the temperature of the material portion in the direction matches the temperature of the void in the upper part of the processing vessel.
  • the pressure in the processing container is set to 2.
  • the waste when the waste is sewage sludge, it is preferable to maintain the pressure in the treatment container at 3.05 MPa or more and 3.43 or less.
  • the pressure in the processing container is set to 2
  • the pressure in the processing container is set to 2.
  • the pressure in the processing container is set to 2
  • the present invention not only harmful substances such as dioxin are generated, but also the inherent harmful substances are removed, and even waste with a high water content is treated in a short time.
  • the moisture content can be reduced while suppressing the loss of calorific value, malodors can be removed, and conversion into properties suitable for use as fuel can be achieved.
  • FIG. 1 is a schematic diagram showing a fuel production apparatus 1 according to this embodiment.
  • the fuel production apparatus 1 of the present embodiment mainly includes a processing container 2 for storing and processing various types of waste, and a stirring means 3 for stirring the waste charged in the processing container 2.
  • Steam injecting means 4 for injecting high-pressure steam into the waste in the processing container 2, pressure adjusting means 5 for adjusting the pressure in the processing container 2, the stirring means 3, the steam injecting It comprises means 4 and control means 6 for controlling the pressure adjusting means 5.
  • the waste to be treated in this embodiment covers various types of waste, but in particular, raw garbage, sewage sludge, fish residue, peat, livestock dung, squid liver (squid goro), scallop midgut gland High moisture content such as (scallop mouth), which is usually difficult to reuse as fuel, is also a suitable treatment target.
  • the processing container 2 is configured by a first-type pressure container having pressure resistance, and the waste is processed therein. Yes.
  • a waste inlet 21 is provided in the upper part of the processing container 2, and an outlet 22 is provided in the lower part.
  • the input port 21 and the discharge port 22 have a sealed structure in which packing capable of withstanding high temperature and pressure in the processing container 2 is used when processing waste.
  • the input port 21 and the discharge port 22 are provided with a control system in which the opening / closing operation does not react unless the pressure in the processing container 2 is reduced to 0.015 MPa or less.
  • an upper temperature sensor 23a is provided above the processing container 2, and a lower temperature sensor 23b is provided below.
  • the upper temperature sensor 23a is a sensor that measures the temperature above the inside of the processing container 2.
  • the initial temperature sensor 23a may be buried in the waste at the beginning of the introduction of the waste. Thus, the temperature of the void portion is detected.
  • the lower temperature sensor 23b is a sensor that measures the temperature of the waste itself in the processing container 2 or the inner surface of the processing container 2 that is in contact with the lower temperature sensor 23b. The waste temperature will be detected.
  • the upper temperature sensor 23a and the lower temperature sensor 23b are arranged on the inner surface of the processing container 2 whose vertical force of the processing container 2 is also inclined by about 30 °. Further, a pressure sensor 24 for detecting pressure is provided above the processing container 2.
  • the stirring means 3 is for uniformly pressurizing and warming the input waste.
  • the stirring means 3 supports a horizontal rotation shaft 31 in the longitudinal direction in the processing container 2, and a stirring blade 32 inclined forward with respect to the vertical surface of the horizontal rotation shaft 31 is attached. ing.
  • the horizontal rotation shaft 31 is connected to a drive motor 33 that can rotate the forward and reverse directions.
  • the agitating means 3 is configured to gradually transfer the thrown-in waste while stirring, and extends from the inlet 21 to the outlet 22.
  • the drive motor 33 is an inverter system. It is a motor whose rotation speed and rotation direction are freely controllable, and reciprocates in the processing container 2 as necessary until the waste is converted into properties suitable for fuel.
  • the water vapor injection means 4 has a boiler 41 that generates high-pressure water vapor, and an air supply pipe 42 for supplying the water vapor generated from the boiler 41 into the processing vessel 2.
  • the pressure of water vapor generated in the boiler 41 is maintained at a constant value, and the pressure in the processing vessel 2 is adjusted by the amount of high-pressure steam injected. Since the temperature is determined according to the pressure of the high-pressure steam, the inside of the processing container 2 is kept at a high temperature.
  • the maximum pressure of water vapor that can be generated in the boiler 41 is set to 3.43 MPa, and the pressure in the processing vessel 2 is maintained at 1.96 MPa or more by appropriately adjusting the amount of high-pressure steam injected. It is supposed to be.
  • the air supply pipe 42 is connected to the processing container 2 in a substantially horizontal direction at a position above the horizontal rotation shaft 31. This is because it is desired to apply high-pressure steam when the waste in the processing container 2 has accumulated and is not under pressure, i.e., immediately before the waste is agitated and floated in the air and covered with other waste. It is optimal to apply high-pressure steam, which is a force that can achieve high processing efficiency.
  • the pressure adjusting means 5 includes a pressure adjusting valve 51 that is electrically controlled to be freely opened and closed, an exhaust pipe 52 for exhausting water vapor in the processing vessel 2 through the pressure adjusting valve 51, and a cap. You are composed. When the pressure in the processing container 2 exceeds a predetermined value, the pressure adjustment valve 51 is opened, the pressure in the processing container 2 is released, and the predetermined pressure is maintained.
  • a cooling device 8 is connected to the exhaust pipe 52 via a silencer 7 to cool and liquefy the water vapor from the processing vessel 2 and supply it to the wastewater treatment facility 9.
  • the silencer 7 is designed to be installed in urban areas, etc., clearing the regulation value of the Noise Prevention Ordinance! Speak.
  • control means 6 is connected to the upper temperature sensor 23a, the lower temperature sensor 23b and the pressure sensor 24, and based on the detection signals from these sensors and a predetermined control program, the stirring means 3
  • the water vapor injection means 4 and the pressure adjustment means 5 are controlled.
  • the control means 6 controls the direction of rotation and speed of the drive motor 33 to control the time for stirring and transferring the waste in the processing container 2.
  • the control means 6 is set in advance with an optimum processing pressure range for treating various types of waste, and the steam injection means 4 and the pressure adjusting means 5 are feedback-controlled so as to maintain this processing pressure range. And then.
  • control means 6 controls the steam injection means 4 to inject high-pressure steam when the pressure in the processing container 2 is less than the processing pressure range based on the detection result of the pressure sensor 24.
  • the pressure adjusting means 5 is controlled to exhaust high-pressure steam and lower the pressure.
  • control means 6 of the present embodiment controls the water vapor injection means 4 when the material part temperature force detected by the lower temperature sensor 23b matches the gap temperature detected by the upper temperature sensor 23a.
  • Set to stop high pressure steam injection! This control may be operated by the user while checking the temperature status.
  • the stop control of the high-pressure steam introduced as described above is performed because the air supply pipe 42 is disposed at the upper position of the processing container 2 and because highly humid waste tends to accumulate moisture below, it is discarded. This is due to the large temperature difference between the objects. Therefore, when the material part temperature in the lower part in the processing container 2 matches the gap part temperature in the upper part and uniform pressure and temperature are applied to the whole waste, it can be converted into a property suitable for fuel without unevenness.
  • the pressure at the time of processing in the processing container 2 is set in advance for the control means 6 for each type of waste to be input.
  • the set internal pressure is the pressure at which various types of waste are converted to properties with a sufficiently reduced moisture content without significantly impairing the amount of stored heat.
  • the range is 1.96 MPa or more.
  • waste is introduced into the processing container 2 from the inlet 21.
  • the temperature in the processing container 2 is preheated to about 150 ° C.
  • the moisture adjustment material derived from rice husk is mixed in the waste to be treated.
  • This moisture adjusting material is obtained by processing rice husks using the fuel production apparatus of the present embodiment. Specifically, slaked lime or scallop shell pulverized material is mixed into the rice husks from 1. 45 MPa to l. 96 MPa. More preferably, it is processed at 1.65 MPa to l.85 MPa for 5 to 30 minutes.
  • the rice husks treated in this way are as soft as cocoons.
  • high-pressure steam is injected from an air supply pipe 42 attached above the horizontal rotation shaft 31. For this reason, when the waste is scattered apart above the horizontal rotating shaft 31 by the stirring of the stirring means 3, high-pressure steam is effectively blown. Therefore, heating accompanying steam pressure and hydrolysis by steam are effectively promoted.
  • high-pressure steam of 1.96 MPa or more is used, and as described above, the high-pressure steam contains extremely low moisture. Therefore, in the treatment container 2, rather than hydrolysis, molecular destruction by high pressure proceeds, and waste property conversion processing is further accelerated.
  • control means 6 is a pressure sensor.
  • the 24 detection results are constantly monitored, and the water vapor injection means 4 and the pressure adjusting means 5 are controlled so that the pressure in the processing container 2 is maintained within a preset processing pressure range.
  • the control means 6 controls the water vapor injection means 4 to stop the water vapor injection. Thereafter, the temperature 'pressure gradually decreases, but after this stop state is maintained for a predetermined time, the pressure adjustment valve 51 is opened. As a result, the gas is exhausted through the high-pressure steam force S exhaust pipe 52 in the processing container 2 and the pressure and temperature in the processing container 2 are reduced at a stretch. Therefore, the waste is decomposed so as to explode.
  • the waste is separated and decomposed by binding molecules, and changes in properties such as initial carbonization and refinement occur without burning.
  • the amount of heat originally stored in the waste remains without much loss.
  • the moisture contained in the waste is condensed and discharged along with the reduced pressure, so that the moisture content decreases.
  • the ratio of the water to be condensed is small.
  • it is broken down at the molecular level, cell walls and membranes of vegetables and fish meat are destroyed, or bacterial flocs are destroyed. It is in a state where it evaporates just by keeping it. It also removes odors.
  • Such treated waste has a high utility value as a fuel.
  • it since it is changed into a fine powder, it can be mixed with water that has good fluidity even if it is used as it is, or it can be used by spraying it as fuel in the form of fine powder.
  • it since it is a fine powder, it can be easily formed into pellets, and is particularly suitable as a fuel for gasification power generation. Of course, it is possible to obtain a normal solid fuel by molding it into a more massive shape.
  • the properties of waste can be converted in a very short time by high-pressure water steam, the fuel consumption of the boiler 41 can be saved and the treatment capacity per day can be increased.
  • the treated waste is transferred to the discharge port 22 by the stirring means 3 and taken out. At the same time, the discharged water is supplied to the wastewater treatment facility 9 for purification.
  • Example 1 As shown in FIG. 4, raw garbage containing a lot of water such as scraps such as meat “fish” vegetables from homes and stores, and leftovers was used as waste. Of course, it can be processed without any problems even if it is wrapped with garbage and mixed with plastic film.
  • the processing pressure in the processing container 2 ensures the safety of the processing container 2. 1. Set within the range of 96 to 3.43 MPa, 1.96 to 2.30 MPa, 2.30 to 2 respectively. 90 MPa, 2. The treatment was carried out while maintaining within the range of 90 to 3.43 MPa. Further, the treatment temperature is not particularly set, and the temperature is raised according to the pressure control by injecting high-pressure steam, and at least the lower temperature is set.
  • the processing pressure of the comparative example is 1. 96MPa or less 1.
  • the moisture content before the treatment of the garbage was 91.00% and the retained heat amount was 12.29 kJ.
  • Example 1 in the case of Example 1, in the pressure range of 1. 96-2. 30 MPa, the material part temperature can be made to coincide with the cavity temperature in about 21 minutes after the start of the injection of high-pressure steam. At the same time, the high-pressure steam injection is cut off. Then, after a few minutes, steam is exhausted. Therefore, compared with the comparative example, it can be said that the temperature holding time is almost unnecessary.
  • the coincident temperature was measured and found to be 218 ° C.
  • the retained heat amount is 11.89 kJ and the moisture content is 19.90%, and it retains more than 96% of the heat amount before treatment, and the retained heat amount, the moisture content is low, and there is a bad smell. Power to be removed It is suitable not only as a general fuel but also as a fuel for gasification power generation. By observing the reduced water content, it can be seen that the bacterial flocs are destroyed and dispersed, and it is easy to remove moisture.
  • the treatment time is further shortened, and after injecting the high-pressure steam, the temperature of the material part and the temperature of the void part are increased in about 18 minutes. We were able to complete the process. The coincident temperature at this time was 222 ° C.
  • the retained heat after treatment was 11.09 kJ and the moisture content was 18.33%, holding more than 90% of the heat before treatment, and the moisture content was reduced to 1/5. Therefore, it is extremely suitable as a fuel for gasification power generation.
  • the treatment conditions for reducing the moisture content without losing the amount of heat stored in the raw garbage and converting it to properties suitable for fuel for gasification power generation are as follows: It is preferable to keep the pressure in the processing container 2 at 1.96 MPa or more and increase the temperature until the material temperature and the void temperature meet. More preferably, the pressure is 2.30 MPa to 2.90 MPa or less. The temperature is raised and the temperature is raised, and the injection of high-pressure steam is stopped at the moment when the material part temperature and the gap part temperature coincide. Under such treatment conditions, as shown in Fig. 7, the powder is completely pulverized so that no debris such as shells and shells of force are left. Therefore, it can be directly burned in the form of a fine powder, and can easily be formed into pellets or solid fuel.
  • the durability of the processing container is taken into consideration and the safety performance of the packing is taken into consideration.
  • the processing pressure is stopped at a maximum of 3. 43MPa. It is considered that the time until the temperature of the part matches the temperature of the gap is further shortened, and the water content is also reduced. The same applies to the other embodiments described below. However, since the amount of retained heat tends to decrease gradually, more strict control is considered necessary.
  • the processing temperature shown in Example 1 (the temperature at which the material part temperature and the gap part temperature coincide) is 222 ° C., which is considered to be the optimum temperature under the experimental conditions.
  • this processing temperature changes as the processing environment changes, such as the outside air temperature, the processing temperature is not limited to the above numerical values, and the same applies to the other embodiments described below.
  • Example 2 sewage sludge as shown in FIG. 8 was used as waste.
  • the processing pressure in the processing container 2 ensures the safety of this processing container 2. 1. Within the range of 96 to 3.43 MPa The processing was carried out while maintaining the range of 1.96 to 2.35 MPa, 2.35 to 3.05 MPa, 3.05 to 3.43 MPa, respectively. Further, the processing temperature was not particularly set, and the temperature was raised according to pressure control by injecting high-pressure steam, and high-pressure steam was injected until at least the lower temperature sensor 23b coincided with the upper temperature sensor 23a. On the other hand, the processing pressure of the comparative example is in the range of 1.96 MPa or less 1.
  • the material part temperature can be made to match the gap part temperature in about 41 minutes after the start of high-pressure steam injection.
  • the high-pressure steam injection may be cut off. After that, the steam is exhausted after a few minutes just in case. Therefore, the temperature holding time is not necessary as compared with the comparative example.
  • the coincident temperature was measured and found to be 215 ° C.
  • the retained heat quantity was 11.38 kJ and the high moisture content was 30.55%, which was a little lack of practicality.
  • sewage sludge has been separated and decomposed by bacterial flocs and binding molecules, so water tends to evaporate, and the moisture content decreases if left overnight. Therefore, it is also suitable as a fuel for gasification power generation.
  • the material part temperature and the cavity part temperature coincide with each other in about 38 minutes after the high-pressure steam is injected. did it.
  • the coincident temperature at this time was 223 ° C.
  • the retained heat after treatment is 11.12kJ and high heat The quantity value was maintained, and the moisture content was reduced to about 1/3, 26.78%. Therefore, it can be fully used as a fuel for gasification power generation.
  • the processing conditions for reducing the moisture content without losing the amount of heat retained in the sewage sludge and converting it into properties suitable for gasification power generation are: While maintaining the pressure in Processing Vessel 2 at 1.96 MPa or more, it is preferable to increase the pressure until the material part temperature and the cavity temperature match, and more preferably the pressure is kept at 3.05 MPa or more and 3. 43 MPa or less. The injection of high-pressure steam is stopped at the moment when the temperature of the material part and the temperature of the cavity part coincide. Under such treatment conditions, as shown in FIG. 9, even sewage sludge can be converted into fine powder dried in a short time, and malodors can be removed.
  • Example 3 fish residue was used as waste.
  • the processing pressure in Processing Vessel 2 ensures the safety of Processing Vessel 2.
  • 1. Set within the range of 96-2.95 MPa, 1.96-2.20 MPa, 2.20 respectively
  • the treatment was carried out while maintaining within the range of ⁇ 2.65 MPa and 2.65-2.95 MPa. Further, the treatment temperature was not particularly set, and the temperature was raised according to pressure control by injecting high-pressure steam, and high-pressure steam was injected until at least the lower temperature sensor 23b coincided with the upper temperature sensor 23a.
  • the processing pressure of the comparative example is in the range of 1.96 6MPa or less 1.
  • the moisture content was 85.00% and the retained heat was 12.99 kJ.
  • the material part temperature can be made to coincide with the gap part temperature in about 34 minutes after the start of high-pressure steam injection.
  • the injection of high-pressure steam was cut off. After that, the steam is exhausted after a few minutes with a margin for treatment. Therefore, it can be said that the temperature holding time is not necessary as compared with the comparative example.
  • the coincident temperature was measured and found to be 221 ° C.
  • the retained heat quantity was 12.33 kJ and the high moisture content was 68.20%, which was not practical for practical use.
  • the fish residue after the treatment has separated and decomposed binding molecules, so the water content tends to evaporate, and the moisture content decreases if it is left overnight. Therefore, it can be used as a fuel for gasification power generation.
  • the temperature of the material part and the temperature of the gap part may be matched in about 26 minutes to complete the processing. did it.
  • the coincident temperature at this time was 229 ° C.
  • the retained heat after treatment is 11.19 kJ, and the force moisture content that has maintained a high calorific value of 82% or higher is still high at 48.20%, so to further improve the practicality, the moisture content is further reduced. There is a need.
  • the processing conditions for reducing the moisture content without losing the amount of heat retained in the fish residue and converting it to properties suitable for fuel for gasification power generation are as follows: , The pressure in the processing container 2 is maintained at 1.96 MPa or more, and the condition of increasing until the material part temperature and the gap part temperature coincide with each other is preferable. More preferably, the pressure is maintained at 2.65 MPa or more and 2.95 MPa or less. Then, the temperature is raised and the injection of high-pressure steam is stopped at the moment when the material part temperature and the gap part temperature coincide. Under such treatment conditions, even fish residues can be converted into fine powder that is dried in a short time.
  • Example 4 peat was used as waste.
  • the processing pressure in Processing Vessel 2 ensures the safety of this Processing Vessel 2.
  • the treatment was performed while maintaining the pressure within the range of 55 MPa and 2.5 55 to 2.77 MPa.
  • the processing temperature was not particularly set, and the temperature was raised according to pressure control by injecting high-pressure steam, and high-pressure steam was injected until at least the lower temperature sensor 23b coincided with the upper temperature sensor 23a.
  • the processing pressure of the comparative example is 1. 90MPa or lower range 1. 85 ⁇ : L Hold within the pressure range of 90MPa and vigorously hold the temperature at 205 ⁇ 210 ° C for 30-60 minutes Processed.
  • the moisture content of the peat before treatment was 70.00%, and the retained heat was 16.90 kJ.
  • Example 4 In the pressure range of 90-2.20 MPa, the material part temperature can be matched with the gap part temperature in about 30 minutes after injecting high-pressure steam, At the same time, the high-pressure steam injection is cut off. Then, after a few minutes have passed, allow the steam to be exhausted after a certain amount of time has passed. Therefore, it can be said that there is almost no temperature holding time compared to the comparative example.
  • the coincident temperature was measured and found to be 197 ° C.
  • the retained heat amount is 15.58kJ, which is a high heat value of 92% or more before the treatment. The rate has already been reduced to 25.40%. After treatment, the peat after treatment has been separated and decomposed by bacterial flocs and binding molecules, and the water content tends to evaporate. Therefore, it can be sufficiently used as a fuel for gasification power generation.
  • the material temperature and the void temperature are matched in about 29 minutes after the start of high-pressure steam injection, and the processing is completed. I was able to. The coincident temperature at this time was 205 ° C.
  • the calorific value after treatment was 15.05 kJ, which was a high calorific value of 89% or more, and the moisture content was 24.03%, which was almost the same as the previous conditions.
  • the processing conditions for reducing the moisture content without losing the amount of heat stored in the peat and converting it into properties suitable for fuel for gasification power generation are as follows.
  • the pressure in physical container 2 is maintained at 1.90 MPa or more, and it is preferable to increase the pressure until the material part temperature and the cavity temperature match.
  • the pressure is preferably maintained at 2.55 MPa or more and 2. 77 MPa or less.
  • the temperature is raised, and the injection of high-pressure steam is stopped at the moment when the material part temperature and the gap part temperature coincide. Under such processing conditions, even peat is converted into fine powder that is dried in a short time.
  • Example 5 livestock dung was used as waste.
  • the processing pressure in the processing container 2 ensures the safety of the processing container 2.
  • 1. 85-3. Set within the range of 43 MPa, 1. 85 to 2. OOMPa, 2.00
  • the treatment was carried out while maintaining within the range of ⁇ 2.15 MPa and 2.15-3.43 MPa. Further, the treatment temperature was not particularly set, and the temperature was raised according to pressure control by injecting high-pressure steam, and high-pressure steam was injected until at least the lower temperature sensor 23b coincided with the upper temperature sensor 23a.
  • the processing pressure of the comparative example is 1.8. It is the range of 5 MPa or less 1. 70-: L
  • the pressure was maintained within a pressure range of 75 MPa, and the temperature was maintained at 205-210 ° C. for 35-45 minutes for processing.
  • the water content of the livestock feces before treatment was 68.00% and the retained heat was 13.40 kJ.
  • Example 5 In the case of Example 5, 1. 85-2. In the pressure range of OOMPa, after injecting the high-pressure steam, the material part temperature can be matched with the gap part temperature in about 29 minutes. At the same time, the injection of high-pressure steam was cut off. Thereafter, the water vapor was exhausted after several minutes. Therefore, it can be said that there is almost no temperature holding time compared with the comparative example. When the matched temperature was measured, it was 223 ° C. In addition, the retained heat quantity was 13.15 kJ, which kept the high calorific value, and the moisture content was 24.0%, which was sufficiently reduced. Moreover, since the treated animal feces have separated and decomposed binding molecules, the moisture tends to evaporate, and the moisture content is further reduced by simply leaving it alone. Therefore, it can be used as a fuel for gasification power generation.
  • the processing conditions for reducing the moisture content without losing the amount of heat retained by livestock dung and converting it to properties suitable for fuel for gasification power generation are as follows: ,
  • the pressure in the processing vessel 2 is maintained at 1.85 MPa or more, and it is preferable to increase the pressure until the material part temperature and the cavity temperature coincide with each other. More preferably, the pressure is maintained at 2.15 MPa or more and 3.43 MPa or less. Then, the temperature is raised and the injection of high-pressure steam is stopped at the moment when the material part temperature and the gap part temperature coincide. Under such treatment conditions, the properties of livestock dung are converted into fine powder that is dried in a short time. Also, malodor is removed.
  • Example 6 squid liver was used as waste.
  • the processing pressure in Processing Vessel 2 ensures the safety of this Processing Vessel 2. 1. Set within the range of 90-3.22 MPa, 1.90 to 2.05 MPa, 2.05 respectively. The treatment was carried out while maintaining within the range of ⁇ 2. 96 MPa, 2.96-3.22 MPa. Further, the treatment temperature was not particularly set, and the temperature was raised according to pressure control by injecting high-pressure steam, and high-pressure steam was injected until at least the lower temperature sensor 23b coincided with the upper temperature sensor 23a.
  • the processing pressure of the comparative example is 1. 90 MPa or less 1.
  • the water content of the squid liver before treatment was 89.00%, and the amount of heat retained was 14.66 kJ.
  • Example 6 in the pressure range of 1.90-2.05 MPa, the material temperature can be made to match the void temperature in about 49 minutes after the start of high-pressure steam injection. At the same time, the injection of high-pressure steam was cut off. Thereafter, water vapor was exhausted after several minutes. There is no need for a temperature holding time while injecting water vapor. The coincident temperature was measured and found to be 218 ° C. In addition, the retained heat amount was 8.12 kJ, 1.6 times that of the comparative example, and the moisture content was 59.06%. Therefore, although the water content is high, the squid liver after treatment has separated / decomposed binding molecules, which makes it easy for water to evaporate. Therefore, it can be used as a fuel for gasification power generation.
  • Example 6 the process for reducing the moisture content without losing the amount of heat retained in the squid liver and converting it into a property that can be used as a fuel for gasification power generation.
  • the condition is that the pressure in the processing vessel 2 is maintained at 1.90 MPa or more, and it is preferable to increase the pressure until the material part temperature and the gap part temperature match, more preferably the pressure is 2.96 MPa or more 3.22 MPa
  • the temperature is kept below and the temperature is raised, and the injection of high-pressure steam is stopped at the moment when the material part temperature and the gap part temperature match.
  • Even under such processing conditions For example, even squid liver can be detoxified in a short time, and its properties are converted into a dry fine powder.
  • Example 7 scallop midgut gland was used as waste.
  • the processing pressure in Processing Vessel 2 ensures the safety of Processing Vessel 2.
  • 1. Set within the range of 90-2. 96 MPa, 1. 90 to 1.95 MPa, 1. 95 to 2 respectively. OOMPa, 2.00-2. 96 MPa was maintained in the range.
  • the processing temperature was not particularly set, and the temperature was raised according to the pressure control by injecting high-pressure water vapor, and high-pressure steam was injected until at least the lower temperature sensor 23b coincided with the upper temperature sensor 23a.
  • the treatment pressure of the comparative example is 1. 90MPa or less 1. 78 ⁇ : L Hold within the pressure range of 90MPa and keep the temperature at 185 ⁇ 210 ° C for 65 ⁇ 95 minutes. Went.
  • the water content of the scallop midgut gland before treatment was 85.00%, and the retained heat was 11.79 kJ.
  • the material part temperature can be made to coincide with the gap part temperature in about 65 minutes after injecting high-pressure steam.
  • the injection of high-pressure steam was cut off, and the steam was exhausted after several minutes. Therefore, compared to the comparative example, it can be said that there is almost no temperature holding time.
  • the coincident temperature was measured and found to be 212 ° C.
  • the retained heat amount was 10.80 kJ, more than 90% of the retained heat amount before treatment, and the moisture content was 69.78%. Therefore, although the water content is high1, the treated scallop midgut glands are separated and decomposed because the binding molecules are separated, and the water tends to evaporate.
  • the rate drops. Therefore, it can be used as a fuel for gasification power generation.
  • the material part temperature and the gap part temperature are matched in about 49 minutes after the high-pressure steam is injected, and the treatment can be completed. did it.
  • the consistent temperature at this time was 220 ° C.
  • the retained heat after treatment was 7.10 kJ, approximately 60% of the retained heat before treatment, and the moisture content was 50.09%. Therefore, the water content has been reduced by about 20% compared to the previous conditions, and the treatment time has been shortened by more than 15 minutes. This is a practical application considering the properties of the midgut gland of scallops.
  • the moisture content that causes the loss of heat held in the midgut gland of scallops is reduced, and converted into properties that can be used as fuel for gasification power generation.
  • the processing conditions for this are as follows: The pressure in the processing container 2 is maintained at 1.90 MPa or more, and the condition in which the temperature of the material section and the cavity temperature are increased is preferred, and the pressure is preferably 2. OOMPa or more. 2. The temperature is raised to 96 MPa or less, and high-pressure steam injection is stopped at the moment when the temperature of the material part and the temperature of the cavity part coincide. Under such treatment conditions, even the midgut gland of scallops can be detoxified in a short time, and the properties are converted into a dry fine powder.
  • the fuel soot treatment can be completed in an extremely short time of about 20 to 30 minutes and about 49 minutes at the longest. Can be processed.
  • a separate preliminary wastewater treatment facility 10 may be provided.
  • the pH of wastewater discharged from the silencer 7 and the discharge port 22 is adjusted to clear the regulation value of wastewater.
  • FIG. 1 is a schematic diagram showing an embodiment of a fuel production apparatus according to the present invention.
  • FIG. 2 is a graph showing the relationship between the temperature in the processing container and time in the fuel production method of the present embodiment.
  • FIG. 3 is a table showing processing conditions and processing results of Examples 1 to 7 in the present embodiment.
  • FIG. 4 A digital photographic image showing garbage before processing.
  • FIG. 5 A digital photographic image showing a shell (a) and a shell (b) of an eagle before processing.
  • FIG. 6 is a digital photographic image showing garbage after processing under the processing conditions of the comparative example of Example 1.
  • FIG. 7 is a digital photographic image showing garbage after processing under the processing conditions of Example 1
  • FIG. 8 is a digital photographic image showing sewage sludge before processing.
  • FIG. 9 is a digital photographic image showing sewage sludge after treatment under the treatment conditions of Example 2.
  • FIG. 10 is a schematic view showing another embodiment of the fuel production apparatus according to the present invention.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Procédé de production de combustible permettant non seulement d'éliminer les substances dangereuses, telles que la dioxine, sans émission mais aussi de traiter les rebuts à teneur en eau élevée en peu de temps, réduisant ainsi le coût de traitement. Ledit procédé permet en outre de supprimer toute perte de pouvoir calorifique, de réduire la teneur en eau et d'éliminer les mauvaises odeurs pour réaliser la conversion en une forme adaptée pouvant servir de combustible ; et appareil adapté de production de combustible. Par conséquent, de la vapeur sous haute pression est injectée dans une cuve de traitement (2) contenant le rebut afin non seulement de maintenir la pression dans la cuve de traitement (2) à ≥ 1,96 MPa mais également d’accroître sa température. L’injection de vapeur sous haute pression est interrompue lorsque la température de la section de matériau située dans la partie inférieure de la cuve de traitement (2) coïncide avec la température de la zone vacante dans une partie supérieure située dans la cuve de traitement (2).
PCT/JP2005/012864 2004-07-13 2005-07-12 Procede de production de combustible et appareil de production de combustible WO2006006606A1 (fr)

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JP2007112880A (ja) * 2005-10-19 2007-05-10 National Univ Corp Shizuoka Univ 燃料化装置及び燃料の製造方法
JPWO2008038361A1 (ja) * 2006-09-28 2010-01-28 エコマテリアル株式会社 有機系廃棄物の処理システム
DE102007056170A1 (de) 2006-12-28 2008-11-06 Dominik Peus Semikontinuierliches Verfahren zur Herstellung von Brennstoff aus Biomasse
JP2010195994A (ja) * 2009-02-27 2010-09-09 Kubota Kankyo Service Kk 脱塩素燃料の製造方法および製造装置
JP5555950B2 (ja) * 2009-09-04 2014-07-23 株式会社共生資源研究所 重金属除去装置及び重金属除去方法
TW201132612A (en) * 2010-03-26 2011-10-01 Nian-Bi Li Organic treatment equipment and method for animal bones
NL2015658B1 (nl) 2015-10-26 2017-05-23 Elsinga Beleidsplanning En Innovatie B V Werkwijze voor het verwerken van een organische bestanddelen bevattend uitgangsmateriaal.
MA45482A (fr) * 2017-06-01 2019-02-20 Takase Tech Co Ltd Procédé de production d'un combustible et dispositif de production d'un combustible
JP2020183494A (ja) * 2019-05-09 2020-11-12 株式会社神戸製鋼所 バイオマス固形燃料の製造方法
JP7400623B2 (ja) 2020-05-18 2023-12-19 株式会社Ihi 蒸煮爆砕装置
JP6893673B1 (ja) * 2020-12-02 2021-06-23 サステイナブルエネルギー開発株式会社 廃棄物処理システム、廃棄物処理方法およびペレット
JP7209923B1 (ja) 2022-06-20 2023-01-23 時田毛織株式会社 Ｃｏ２の排出量を抑えつつ繊維廃棄物を低分子化して減量化する方法

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