WO2013061996A1 - Procédé et dispositif de production de charbon de coque de palmiste - Google Patents

Procédé et dispositif de production de charbon de coque de palmiste Download PDF

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Publication number
WO2013061996A1
WO2013061996A1 PCT/JP2012/077452 JP2012077452W WO2013061996A1 WO 2013061996 A1 WO2013061996 A1 WO 2013061996A1 JP 2012077452 W JP2012077452 W JP 2012077452W WO 2013061996 A1 WO2013061996 A1 WO 2013061996A1
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Prior art keywords
furnace
charcoal
gas
coconut
raw material
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PCT/JP2012/077452
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English (en)
Japanese (ja)
Inventor
敬一 小鷹
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有限会社美炭産業
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Publication of WO2013061996A1 publication Critical patent/WO2013061996A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
    • C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B1/00—Retorts
    • C10B1/02—Stationary retorts
    • C10B1/04—Vertical retorts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
    • 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
    • C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
    • 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
    • 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 a method and an apparatus for producing palm husk charcoal.
  • the simplest treatment method is incineration, but it is not possible to incinerate the coconut shell generated on the scale of tens of thousands of tons with a simple device.
  • a method of exporting to Japan and co-firing with coal using Japanese coal-fired power generation is being used.
  • this method has a drawback that the added value is small.
  • coconut shell activated carbon that is carbonized at high temperature and activated water vapor. But this is in demand.
  • coconut husk charcoal that has been carbonized at low temperatures to meet demand for steelmaking as an alternative to coke has high hardness and is expected to be useful.
  • coal coke is obtained by directing hot gas discharged from a steelmaking blast furnace to an externally heated coke oven, shutting off the outside air, and carbonizing the coal.
  • a large number of furnaces with narrow widths are arranged so that high-temperature gas passes between the furnaces. For this reason, charging of coking coal into the coke oven, discharge of carbonized coke from the oven, and the like are complicated. Therefore, it is not suitable for carbonizing minute things such as coconut shells in the same furnace.
  • coconut shells such as oil palm and coconut palm grown in Southeast Asia are generated in large quantities as waste after oil extraction, and their effective use has been a problem.
  • utilization as a fuel or charcoal has been studied as a method for using palm husk to solve such problems, and charcoal obtained from coconut husk is called coconut husk charcoal.
  • coconut palm husks have a relatively high carbon content
  • Palm husk charcoal has been shown to be useful as a carbon source in the refining process of iron or non-ferrous metals, and can be used as a material that can replace coal coke.
  • a conventional internal combustion furnace that self-combusts palm shell (PKS) of oil palm (oil palm) and carbonizes by ignition from the bottom of the furnace (non-patent document) Carbonization is performed in 1).
  • the present invention provides a method and an apparatus for producing coconut husk charcoal for obtaining coconut husk charcoal suitable for use in the refining of iron or non-ferrous metals. It is an object of the present invention to provide a method and an apparatus for producing PKS charcoal for obtaining charcoal) with higher efficiency than conventional methods.
  • the present inventors have studied a method for producing palm husk charcoal having a higher carbon content and lower volatile components, and surprisingly, a gas environment in the coal-making furnace is generated.
  • a gas environment in the coal-making furnace is generated.
  • the present invention relates to at least the following inventions: (1) A method of producing charcoal (coconut husk charcoal) from palm coconut husks by dry distillation using a coal making furnace including the following steps: (A) A step of forcibly exhausting gas generated by dry distillation from the bottom of the coal-making furnace, and (b) a step of starting combustion from above the palm shell put in the coal-making furnace.
  • a charcoal furnace for producing charcoal (coconut husk charcoal) by dry distillation from palm coconut shells using a charcoal furnace including the following means: (A ′) Exhaust means for forcibly exhausting gas generated by dry distillation from the bottom of the coal-fired furnace, and (b ′) Combustion from above the palm shell put in the coal-fired furnace Combustion auxiliary means for leveling. (10) The charcoal furnace having an openable / closable top board for loading a raw material coconut shell and having a structure in which the raw material coconut shell is introduced into the carbonization chamber from the openable / closable top board.
  • the charcoal furnace having an open / close side plate for discharging the carbonized coconut shell and discharging the carbonized coconut shell therefrom.
  • Any of the above coal-fired furnaces having a structure in which a gap in which dry distillation gas generated in the carbonization chamber moves is provided between a raw material receiving plate for holding the raw material palm shell and a fixed bottom plate for fixing the furnace body.
  • the above-mentioned coal making furnace having a structure in which a dry distillation gas moves between the end portion of the raw material receiving plate and the wall portion of the carbonization chamber.
  • any of the above charcoal furnaces having a small hole or gas passage through which dry distillation gas passes in the raw material receiving plate, and having a structure in which the dry distillation gas in the carbonization chamber is quickly moved.
  • Any one of the above-mentioned charcoal furnaces having a gas distillation chamber under the fixed bottom plate of the furnace body, and having a structure in which dry distillation gas is guided to the gas distillation chamber through a gas path of the fixed bottom plate.
  • Any one of the above-described charcoal furnaces having a structure in which an opening / closing top plate has an ignition / air supply hole and a valve for controlling the amount of air.
  • the charcoal furnace having a structure in which the upper movable furnace part and the lower fixed furnace part are vertically divided in the middle of the furnace body in a structure having no open / close top plate and open / close side plates.
  • the charcoal furnace having a structure in which the raw material holding box is housed in the lower fixed furnace body.
  • the coal making furnace having a structure having gas passages through which dry distillation gas passes through the wall surface and bottom surface of the raw material holding box.
  • the charcoal furnace having a structure having an ignition / air supply hole in the top plate of the upper movable furnace body and a valve for controlling the air amount therein.
  • the coal making furnace, wherein the combustion auxiliary means has a structure for discharging the high-temperature combustion gas from the bottom of the furnace body through the inside of the furnace body and above the coconut shell.
  • exhaust of gas generated by dry distillation (sometimes referred to as “dry distillation gas” in this specification) is exhausted at the bottom of the coal-making furnace.
  • dry distillation gas By optimizing the amount of air in the furnace, the carbonization reaction is activated, and the combustion of the coconut shell is started from above, so that the self-combustion is performed more efficiently. It is considered that the efficiency can be improved and the physical properties and production efficiency of coconut shell charcoal can be improved.
  • the physical properties of the coconut shell charcoal produced can be improved. That is, according to the method of the present invention, the coconut shell charcoal having an increased amount of carbon and a reduced volatile component is obtained. More specifically, VM which is a physical property required for a product (coconut shell charcoal): 10% or less is achieved, and a VM having a VM of 7% or less is obtained. Moreover, according to the method of the present invention, it is possible to stabilize the quality of the obtained coconut charcoal, that is, to reduce variations in physical properties of the product.
  • the productivity of coconut husk charcoal can be improved.
  • the production rate of coconut husk charcoal is improved by about 10 times compared to the production by the conventional closed type / natural exhaust type production method.
  • the carbonization state of the coconut shell can be more appropriately adjusted: ⁇ A method in which exhaust is performed through a hollow portion provided at the bottom of the coal-making furnace. ⁇ Using a suction fan in which exhaust is communicated with the hollow portion through a conduit and the suction force and suction amount can be adjusted. Said method being performed. -Any of the said methods further including the process by which air supply is performed from the upper surface of a coal-fired furnace.
  • the charcoal furnace includes a lid, and further includes a step of providing a space between the uppermost part of the palm shell and the lowermost part of the lid when the palm shell is loaded and the lid is attached;
  • coconut husk charcoal can be produced with higher efficiency.
  • PKS charcoal coconut husk charcoal
  • coconut husk charcoal of the present invention iron refining or non-ferrous metal refining can be performed more efficiently.
  • the charcoal furnace of the present invention it is possible to efficiently obtain coconut husk charcoal suitable for use in iron refining or nonferrous metal refining.
  • the method of the present invention is a method for producing coconut husk charcoal by dry distillation from coconut husks using a charcoal furnace, which includes the following steps: (A) A step of forcibly exhausting gas generated by dry distillation from the bottom of the coal-making furnace, and (b) a step of starting combustion from above the palm shell put in the coal-making furnace.
  • the timing at which the steps (a) and (b) are performed, the time at which the steps are performed, and the like are not particularly limited, and can be adjusted as appropriate.
  • the method of the present invention in which the step (b) is performed after the step (a) is preferable, but the method in which the step (b) is performed before the step (a) or a method in which these steps are performed almost simultaneously is also performed. Can do.
  • the time for which the step (a) is carried out is not limited, a method in which the step (a) is carried out in substantially all the time during the production of coconut shell charcoal is preferable. Below, each of (a) process and (b) process is demonstrated.
  • the (a) process is a process for forcibly exhausting the gas generated by dry distillation from the bottom of the coal making furnace.
  • the bottom means a position of about 1/6 or less of the height of the entire coal-fired furnace, and does not necessarily mean the bottom of the coal-fired furnace.
  • a method in which the exhaust of the gas is performed from a dry distillation gas discharge port communicating with the outside provided in a portion including a position of about 1/7 or less of the height of the entire coal-fired furnace is preferable, A method carried out from a dry distillation gas discharge port communicating with the outside provided in a portion including a position of 1/8 or less is more preferable.
  • the method of the present invention in which the carbonization gas outlet is installed near the bottom (lowermost part) of the coal-fired furnace is more preferable.
  • Production efficiency of coconut husk charcoal can be further increased by extending the pipe line having the carbonization gas discharge port to a deeper part of the coal making furnace and providing a plurality of small holes in the lower part of the pipe line. .
  • the dry distillation gas is exhausted more uniformly with respect to the dry distillation gas present in the gas distillation chamber, and more uniform carbonization is possible with less planar deviation.
  • the yield of the coconut shell charcoal manufactured can be improved.
  • the method of the present invention in which a coal-fired furnace provided with two or three or more pipelines is preferred.
  • the amount of gas exhaust is not limited, but among the methods of the present invention, a method in which the amount of gas exhaust is greater than the amount to be supplied is preferable. It is preferable to adjust the balance between the amount of exhausted gas and the amount of air supplied according to the stage of carbonization.
  • the method in which exhaust is performed through a hollow portion provided at the bottom of the coal-making furnace is preferable because the carbonization state of the coconut shell can be adjusted more appropriately.
  • the size of the hollow portion is not limited, among the methods of the present invention, a method in which the height of the hollow portion is 20% to 35% of the total height of the coal-fired furnace is preferable, and is 25% to 33%. The method is more preferred.
  • the height of the hollow portion is preferably about 40 cm to 70 cm.
  • the dry distillation gas generated in the charcoal furnace is in a small hole (discharge hole) provided in the raw material receiving plate in the lower part of the carbonization chamber provided in the lower part of the charcoal furnace or in the raw material receiving plate.
  • a method that further includes a step of sucking from the communicating gas path and introducing the gas into the gas holding chamber is preferable.
  • the dry distillation gas introduced into the gas distillation chamber is forcibly exhausted to the outside of the coal-fired furnace through the dry distillation gas discharge port communicating with the outside.
  • the size and number of the discharge holes are not limited as long as the raw material palm shell is not dropped as much as possible and the air flow rate is ensured, but the size is preferably about 5 mm, for example.
  • the raw material receiving plate itself may have a mesh structure.
  • the method in which the exhaust is communicated with the hollow portion through a pipe line and the suction fan capable of adjusting the suction force and the suction amount is used to adjust the carbonization state of the coconut shell. This is preferable because it can be performed appropriately.
  • a method further including a step of supplying air from the upper surface of the coal-making furnace is preferable because the carbonization state of the coconut shell can be adjusted more appropriately.
  • Air supply can be performed through an air supply hole installed on the upper surface of the coal-fired furnace. For example, by supplying air through an air supply hole, the amount of air in the furnace is adjusted and controlled more strictly.
  • the “upper surface” of the charcoal furnace in which the air supply hole is installed means the uppermost surface or upper side surface of the charcoal furnace.
  • the method of supplying air is not limited.
  • the amount of supply air is not particularly limited, and may be determined based on a balance with the amount of exhaust.
  • the gas supplied is air.
  • a process is a process of starting combustion (ignition) from the upper part of the coconut shell put into the charcoal furnace, and is a process of substantially starting dry distillation.
  • An example of a heat source for combustion is a gas burner. Ignition for combustion can be performed from, for example, a hole provided in a coal-fired furnace and appropriately communicating the inside and outside of the furnace. Such holes are sometimes referred to herein as combustion assisting means.
  • the method of the present invention including the step of directly burning the coconut shell from above using such combustion assisting means is preferable.
  • step (b) a method in which ignition for combustion is performed at a plurality of locations is preferable because combustion in a wider region can be performed in a shorter time. Usually, several minutes after ignition, the entire upper surface of the raw material coconut shell is burned. By burning the entire surface, it is possible to produce palm husk charcoal with higher efficiency, which is preferable.
  • ignition for combustion is performed from above the palm shell by the high-temperature combustion gas of the burner released from the bottom of the furnace body through the central heat passage inside the furnace body. Is preferred. This is because ignition for burning the coconut shell is performed more safely.
  • a space between the uppermost portion of the palm shell and the lowermost portion of the lid ( A method further comprising the step of providing an upper space) is preferred. It is because carbonization from the upper part can be promoted by filling the heated air after combustion. In addition, the upper space can adjust the amount of palm husk input, which contributes to adjustment of the carbonization schedule.
  • the method in which the dry distillation gas is exhausted through a larger gas distillation chamber is preferable because it is possible to produce palm husk charcoal with higher efficiency (FIG. 3).
  • the present invention also relates to palm shell charcoal produced by the method of the present invention.
  • coconut shell charcoal produced by the method of the present invention those with a VM of 7% or less are preferred, those with 4% or less are more preferred, those with 2% or less are even more preferred.
  • the charcoal furnace for carrying out the method of the present invention is a charcoal furnace for producing charcoal (coconut shell charcoal) from palm coconut shells by dry distillation using the charcoal furnace, including the following means: (A ′) Exhaust means for forcibly exhausting gas generated by dry distillation from the bottom of the coal-fired furnace, and (b ′) starting combustion from above the palm shell put in the coal-fired furnace Combustion assistance means that make it possible to
  • FIG. 1 As a coal making furnace (internal heating type furnace) for carrying out the method of the present invention, ⁇ The above-mentioned charcoal furnace (FIG. 1) having an openable and closable top board for loading the raw material coconut shell, and introducing the raw material and coconut shell from the openable and closable top board into the carbonization chamber; In the structure having no side plate, the charcoal furnace having a structure in which the upper movable furnace part and the lower fixed furnace part are vertically divided in the middle of the furnace body (FIG. 2). Is exemplified. In addition, a carbon furnace having a larger gas chamber is also exemplified as a carbon furnace for carrying out the method of the present invention (FIG. 3).
  • a coal making furnace having a structure in which the high-temperature combustion gas of the burner is released from the bottom of the furnace body through the central heat passage inside the furnace body is also exemplified as a coal making furnace for carrying out the method of the present invention. (FIG. 4).
  • ignition is performed from the upper part of the furnace, and control of dry distillation gas by carbonization reaction and self-combustion by controlling the air supply amount are performed, but the amount of air is minimized to improve the carbonization yield.
  • the structure to be made is provided.
  • the internal heat furnace of the present invention burns a part of the raw material coconut shell to create energy for carbonization of the coconut shell of the entire furnace.
  • the dry distillation gas generated by the reaction is forcibly drawn out by a suction fan, and the inside of the furnace is made negative pressure so that the dry distillation gas generated by the reaction is easily generated.
  • the furnace structure is configured so that the carbonization reaction proceeds from the upper part to the lower part of the furnace.
  • the raw material coconut shell shall be loaded from the top of the furnace. Or it is set as the structure inserted as it is with the bear put in the raw material holding box.
  • Carbonized palm shell shall be structured so that it can be discharged all at once by opening the side of the furnace. Alternatively, the upper part of the furnace is removed and the material holding box is lifted and taken out.
  • the internal heat furnace of the present invention directly burns part of the coconut shell and directly takes carbonization energy, so the furnace structure is extremely compact and requires less production space than conventional coal coke ovens. .
  • FIG. 1 shows a structural diagram of an open / close type carbonization apparatus of the present invention.
  • FIG. 2 shows a structural diagram of the split carbonization apparatus of the present invention.
  • FIG. 3 shows the lower part of an example of a coal making furnace with a larger gas chamber.
  • FIG. 4 exemplifies a charcoal furnace in which the combustion auxiliary means has a structure for discharging high-temperature combustion gas from the bottom of the furnace body through the inside of the furnace body and above the coconut shell.
  • FIG. 5 shows an example of a conventional carbonization furnace.
  • the open / close type carbonization apparatus the furnace body is made of a steel plate and the inside is insulated by a refractory block 19.
  • Opening and closing top plate is installed at the top, opening and closing top plate 1 is opened by opening and closing arm 11, and raw material coconut shell is loaded into the furnace by hopper etc.
  • the suction fan connected to the dry distillation gas outlet 15 is operated to lower the furnace pressure and activate the carbonization reaction.
  • the air supply valve 8 of the ignition / air supply hole 7 is adjusted to control the amount of self-combustion of the raw material coconut shell.
  • the carbonization reaction in the carbonization chamber 10 leads the dry distillation gas to the gas distillation chamber 6 through the small holes of the raw material receiving plate 3 or the gas passage 5. From there, it is drawn out by the suction fan of the dry distillation gas discharge port 15.
  • the carbonized product is rapidly cooled from the ignition / air supply hole 7 with cooling gas or spray water. After cooling, open the open / close side plate 2 with the open / close arm 11 and discharge it to the outside.
  • the furnace is composed of a movable furnace part 12 and a fixed furnace part 13.
  • the raw material coconut shell is loaded into the raw material holding box 14 in advance, and the raw material holding box 14 is inserted into the fixed furnace portion 13 with the movable furnace portion 12 removed.
  • the movable furnace 12 After inserting the raw material holding box 14, the movable furnace 12 is put on a predetermined position to shut off the outside air. Thereafter, the upper part of the raw material coconut shell is ignited by a gas burner or the like through the ignition and air supply hole 7.
  • the suction fan connected to the dry distillation gas outlet 15 is operated to lower the furnace pressure and activate the carbonization reaction.
  • the air supply valve 8 of the ignition / air supply hole 7 is adjusted to control the amount of self-combustion of the raw material coconut shell.
  • the carbonization reaction in the carbonization chamber leads the dry distillation gas to the gas distillation chamber 6 through the small holes of the raw material receiving plate 3 or the gas passage 5. From there, it is drawn out by the suction fan of the dry distillation gas discharge port 15.
  • the carbonized product is rapidly cooled from the ignition / air supply hole 7 with cooling gas or spray water. After cooling, the movable furnace part 12 is opened and the raw material holding box 14 after carbonization is lifted to take out the carbonized product.
  • the production of coconut shell charcoal can be performed with higher efficiency.
  • a pipe line having a carbonization gas discharge port 15 is extended to a deeper part of the charcoal furnace, and a plurality of small holes 20 are provided in the lower part of the pipe line.
  • the dry distillation gas is exhausted more uniformly with respect to the dry distillation gas present in the gas distillation chamber, and more uniform carbonization is possible with less planar deviation.
  • the charcoal furnace of the present invention provided with two or three or more pipe lines is preferable. According to the charcoal furnace shown in FIG. 4, ignition from above the coconut shell for burning the coconut shell is performed more safely.
  • the upper part of the furnace can be sealed by the lid 102 and shut off from the outside. That is, in such a coal making furnace, the high-temperature combustion gas from the burner 107 reaches the upper part of the raw material coconut shell through the central heat passage 106, and combustion starts from the uppermost part of the raw material coconut shell.
  • FIG. 4 shows an example in which kerosene 108 is used for ignition and combustion of the burner 107, the burner 107 may be a gas burner.
  • the upper part of the raw material storage container 104 that stores the raw material coconut shell 105 is formed of a wire mesh, and gas can easily pass therethrough.
  • the lid 102 is placed on the water seal portion 103, the inside of the charcoal furnace main body 9 is substantially cut off from the outside air.
  • the dry distillation gas is guided to the burner 107, and the fuel is switched from the kerosene 108 to the dry distillation gas.
  • the carbonization energy of the raw material can be obtained by burning the dry distillation gas as fuel with a burner. In this case, air supply from the outside is performed through a burner.
  • Example 1 -Material PKS from Indonesia was used.
  • the PKS was charged into a coal-fired furnace and ignited sequentially at four locations on the upper surface to burn the entire surface. Thereafter, dry distillation was performed by appropriately adjusting the exhaust amount and the air supply amount according to the carbonization stage. After about 8 hours, dry distillation was completed, and then the coal furnace was cooled down at room temperature for about 8 hours.
  • Table 1 shows the physical properties of the obtained palm husk charcoal (PKS charcoal). As is clear from the results shown in the table, good quality PKS charcoal with a sufficiently low VM value (4 wt%) was obtained. In addition, the dry distillation and cooling time required to obtain the PKS charcoal is about 16 hours in total. This time is at least 1 / about 7 days to about 10 days, which is the time required in the conventional method. Less than 10. Therefore, according to the method of the present invention, PKS charcoal having excellent physical properties can be produced at an efficiency at least 10 times higher than that of the conventional method.
  • the physical properties of the produced coconut shell charcoal can be improved. Therefore, the present invention greatly contributes to the development of palm husk charcoal manufacturing industry and related industries.
  • Raw material receiving plate 4 Fixed bottom plate 5
  • Gas passage 6 Gas chamber 7 Ignition and air supply hole 8
  • Air quantity control valve (air supply valve) 9
  • Charcoal furnace body 10 Coking chamber 11 Opening and closing arm 12
  • Movable furnace part 13 Fixed furnace part 14
  • Raw material holding box 15 Dry distillation gas outlet 16
  • Sand holder 17 Water seal part 18
  • Refractory block 20 Small hole 102 Lid 103 Water seal 104
  • Raw material storage container 105 coconut shell 106

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  • Engineering & Computer Science (AREA)
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Abstract

La présente invention concerne un procédé et un dispositif de production de charbon de coque de palmiste pouvant être utilisé dans la fabrication du fer ou pour fondre des métaux non ferreux. Le procédé permet de produire du charbon (charbon de coque de palmiste) à partir de coques de noix de palmier à huile par carbonisation au moyen d'un dispositif de carbonisation, le procédé comprenant : (a) une étape consistant à effectuer une évacuation forcée du gaz généré par la carbonisation, par la partie inférieure du dispositif de carbonisation ; et (b) une étape consistant à commencer par le haut la combustion des coques de palmiste introduites dans le dispositif de carbonisation. Le dispositif de production selon l'invention permet de mettre en œuvre le procédé.
PCT/JP2012/077452 2011-10-25 2012-10-24 Procédé et dispositif de production de charbon de coque de palmiste WO2013061996A1 (fr)

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JP2011-246888 2011-10-25
JP2011246888A JP2013091765A (ja) 2011-10-25 2011-10-25 Ｐｋｓ製炭炉

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WO2013061996A1 true WO2013061996A1 (fr) 2013-05-02

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JP7152098B1 (ja) * 2021-09-03 2022-10-12 有限会社紋珠 製炭装置

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JPH0315537Y2 (fr) * 1983-11-25 1991-04-04
JPH1121560A (ja) * 1997-06-27 1999-01-26 S O S Furomu The Aasu Japan:Kk 炭化炉装置
JP3066044U (ja) * 1999-07-22 2000-02-18 正登 山岡 炭焼窯
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JPH0315537Y2 (fr) * 1983-11-25 1991-04-04
JPH1121560A (ja) * 1997-06-27 1999-01-26 S O S Furomu The Aasu Japan:Kk 炭化炉装置
JP3066044U (ja) * 1999-07-22 2000-02-18 正登 山岡 炭焼窯
JP2011184567A (ja) * 2010-03-09 2011-09-22 Jfe Engineering Corp バイオマス炭化装置及びバイオマス炭化方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7152098B1 (ja) * 2021-09-03 2022-10-12 有限会社紋珠 製炭装置

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