JP2009102468A - Fuel pellet - Google Patents

Fuel pellet Download PDF

Info

Publication number
JP2009102468A
JP2009102468A JP2007273383A JP2007273383A JP2009102468A JP 2009102468 A JP2009102468 A JP 2009102468A JP 2007273383 A JP2007273383 A JP 2007273383A JP 2007273383 A JP2007273383 A JP 2007273383A JP 2009102468 A JP2009102468 A JP 2009102468A
Authority
JP
Japan
Prior art keywords
bark
extraction residue
fuel
coffee extraction
pellet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007273383A
Other languages
Japanese (ja)
Inventor
Yoichi Omura
陽一 大村
Keizo Ono
恵造 大野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHIIKI HATTEN KENKYU CENTER KK
Chiiki Hatten Kenkyu Ct Kk
Ono Sangyo Co Ltd
Original Assignee
CHIIKI HATTEN KENKYU CENTER KK
Chiiki Hatten Kenkyu Ct Kk
Ono Sangyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHIIKI HATTEN KENKYU CENTER KK, Chiiki Hatten Kenkyu Ct Kk, Ono Sangyo Co Ltd filed Critical CHIIKI HATTEN KENKYU CENTER KK
Priority to JP2007273383A priority Critical patent/JP2009102468A/en
Priority to PCT/JP2007/072722 priority patent/WO2009054080A1/en
Publication of JP2009102468A publication Critical patent/JP2009102468A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C10L5/363—Pellets or granulates
    • 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
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C10L5/366—Powders
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means capable of effectively using, as a biomass fuel, bark which has a relatively low raw material price and whose use as a fuel is not yet promoted and a coffee extraction residue which is an industrial waste. <P>SOLUTION: The fuel pellet according to the present invention uses the coffee extraction residue and the bark as the main components. By using the coffee extraction residue as a fuel, use of the coffee extraction residue which is an industrial waste is promoted. Since the coffee extraction residue is solidified in the shape of a pellet by using the coffee extraction residue into a fuel pellet together with the bark, a dust collector of a combustion apparatus such as a boiler is not clogged. Further, since the fuel pellet according to the present invention has a high calorific value, it has a high value as a fuel. Furthermore, since the fuel pellet is burned at a high temperature, the ash content from the bark is reduced. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、コーヒー抽出残渣と樹皮とを主成分とする燃料ペレットに関する。   The present invention relates to a fuel pellet mainly composed of coffee extraction residue and bark.

二酸化炭素などの温室効果ガスを削減する必要性が高まっている現状や、化石燃料の資源が枯渇する見通しから、木質燃料などのバイオマス燃料の利用が見直されている。この木質燃料の一つとして木質チップや木質ペレットが知られており、ストーブやボイラーの燃料として使用されている。木質チップは、原料となる木材が細断されたものである。木質ペレットは、木質チップより細かく木材が粉砕され、乾燥して固められたものである。   The use of biomass fuels such as woody fuels is being reconsidered because of the growing need to reduce greenhouse gases such as carbon dioxide and the prospect of depleting fossil fuel resources. Wood chips and wood pellets are known as one of these wood fuels, and are used as fuel for stoves and boilers. Wood chips are made from shredded wood. Wood pellets are made by pulverizing wood finer than wood chips, and drying and solidifying them.

木質ペレットには、木材の芯部のみを原料とするものや、芯部のみならず樹皮をも原料とするものがある。後者が安価ではあるが、樹皮を含有することにより、燃焼カスである灰分やクリンカが多量に発生するという問題がある。一方、木質ペレットは、化石燃料に比べて発熱量（例えばＭＪ／ｋｇ）が劣るものの、燃料に伴い発生する硫黄酸化物や二酸化炭素の量が少ない。このため、地球温暖化などの環境に対して、化石燃料より優位な資源と考えられている。   Some wood pellets are made from only the core of wood, and others are made from not only the core but also bark. Although the latter is inexpensive, there is a problem that a large amount of ash and clinker, which are combustion debris, are generated by containing bark. On the other hand, wood pellets are inferior in calorific value (for example, MJ / kg) as compared to fossil fuels, but are less in the amount of sulfur oxides and carbon dioxide generated with fuel. For this reason, it is considered to be a resource superior to fossil fuels against the environment such as global warming.

前述された樹皮を含む木質ペレットの問題を解消すべく、クリンカが発生してもメンテナンスが煩雑とならない燃焼装置や、灰分が発生しても連続燃焼ができる燃焼装置が考案されている（例えば、特許文献１から特許文献３）。   In order to solve the above-mentioned problems of wood pellets containing bark, a combustion apparatus that does not complicate maintenance even if clinker is generated and a combustion apparatus that can perform continuous combustion even if ash is generated have been devised (for example, Patent Document 1 to Patent Document 3).

一方、廃棄物の有効利用の一環として、コーヒー抽出残渣の利用が考えられている。この利用手段として、特許文献４に示されるような堆肥としての利用や、特許文献５に示されるような着色紙の原料としての利用が提案されている。   On the other hand, utilization of coffee extraction residue is considered as part of effective utilization of waste. As this utilization means, utilization as compost as shown in Patent Document 4 and utilization as a raw material for colored paper as shown in Patent Document 5 are proposed.

特開２００７−１４７１０４号公報JP 2007-147104 A 特開２００７−１４７１０５号公報JP 2007-147105 A 特開２００４−２７０９８０号公報JP 2004-270980 A 特開平８−２２８５９１号公報Japanese Patent Laid-Open No. 8-228591 特開平８−１５８２９８号公報JP-A-8-158298

しかし、樹皮を含む安価な木質ペレットを利用するために、特許文献１から特許文献３に示されるような特殊な構造を有する燃焼装置が必要となると、新たな設備投資が要求されるという問題が生じる。また、木質ペレットの生産量は少なく、生産地となる山間部からの流通経路が未整備であるという問題がある。さらに、木質ペレットは、原料の集積や生産設備などに依存する生産コストが大きいことから、販売価格が比較的高いという問題もある。これらの事情から、木質ペレットの利用、特に樹皮を含む木質ペレットの利用は未だ進展していない。   However, in order to use inexpensive wood pellets containing bark, if a combustion apparatus having a special structure as shown in Patent Document 1 to Patent Document 3 is required, there is a problem that new equipment investment is required. Arise. In addition, there is a problem in that the amount of wood pellets produced is small, and the distribution route from the mountainous area that is the production area is not yet developed. Furthermore, wood pellets also have a problem that the selling price is relatively high because the production cost depends on the accumulation of raw materials and production facilities. Under these circumstances, the use of wood pellets, particularly the use of wood pellets containing bark, has not yet progressed.

一方、コーヒー抽出残渣の利用においては、堆肥や着色紙の需要がさほど多くないために、コーヒー抽出残渣の排出量に対して十分な利用手段が確保されていない。仮に、コーヒー抽出残渣を乾燥処理して燃料として利用することを考えると、コーヒー抽出残渣が粉体であるために空中に飛散し、ボイラーなどの燃焼装置の集塵機が目詰まりを起こすおそれがある。また。コーヒー抽出残渣自体では、発熱量が木質ペレットや化石燃料ほど高くないので、燃料効率が悪いという問題もある。   On the other hand, in the use of coffee extraction residue, there is not much demand for compost and colored paper, so that sufficient utilization means for the discharge amount of coffee extraction residue is not ensured. If it is considered that the coffee extraction residue is dried and used as fuel, the coffee extraction residue is in the form of powder, so that it is scattered in the air, and the dust collector of a combustion apparatus such as a boiler may be clogged. Also. The coffee extraction residue itself has a problem of poor fuel efficiency because the calorific value is not as high as wood pellets and fossil fuels.

本発明は、このような事情に鑑みてなされたものであり、その目的とするところは、原料価格が比較的安価であり、かつ未だ燃料として利用が促進されない樹皮と、産業廃棄物であるコーヒー抽出残渣とをバイオマス燃料として有効活用できる手段を提供することにある。   The present invention has been made in view of such circumstances. The object of the present invention is a bark whose raw material price is relatively low and which is not yet promoted as a fuel, and coffee which is industrial waste. An object of the present invention is to provide means capable of effectively utilizing the extraction residue as biomass fuel.

(1) 本発明にかかる燃料ペレットは、コーヒー抽出残渣と樹皮とを主成分とするものである。   (1) The fuel pellet according to the present invention is mainly composed of coffee extraction residue and bark.

コーヒー抽出残渣を燃料として利用することにより、産業廃棄物であるコーヒー抽出残渣の利用が促進される。特に、コーヒー抽出残渣は原料として安定供給が見込まれる上に、既に細粉体として使用されていることから乾燥が容易である。このコーヒー抽出残渣を主成分の一つとすることにより、従来の木質ペレットにおいてコスト高の一因であった原木のチップ化工程や乾燥工程を簡易にできるので、製造コストの観点からも優位である。   By using the coffee extraction residue as a fuel, the use of the coffee extraction residue which is an industrial waste is promoted. In particular, the coffee extraction residue is expected to be stably supplied as a raw material, and since it is already used as a fine powder, it is easy to dry. By making this coffee extraction residue one of the main components, it is possible to simplify the chip making process and drying process of raw wood, which contributed to the high cost of conventional wood pellets, which is advantageous from the viewpoint of manufacturing cost. .

また、コーヒー抽出残渣を樹皮とともに燃料ペレットとすることによって、コーヒー抽出残渣がペレット形状に固められるので、ボイラーなどの燃焼装置の集塵機を目詰まりさせることがない。また、本発明にかかる燃料ペレットは、発熱量が高いので、燃料としての価値が高い。さらには、燃料ペレットが高温で燃焼されるので、樹皮からの灰分量が減少される。   Further, by making the coffee extraction residue into fuel pellets together with the bark, the coffee extraction residue is solidified into a pellet shape, so that the dust collector of the combustion apparatus such as a boiler is not clogged. Moreover, since the fuel pellet according to the present invention has a high calorific value, its value as a fuel is high. Furthermore, since the fuel pellets are burned at high temperatures, the amount of ash from the bark is reduced.

(2) また、本発明は、上記コーヒー残渣の細粉体と上記樹皮の細粉体とを含む原料がペレット化されたものであってもよい。   (2) In the present invention, the raw material containing the fine powder of coffee residue and the fine powder of bark may be pelletized.

コーヒー抽出残渣及び樹皮をそれぞれ細粉体として混合し、この混合体を原料としてペレット化することが好適である。   It is preferable to mix the coffee extraction residue and the bark as fine powders, and pelletize the mixture as a raw material.

(3) また、上記コーヒー抽出残渣と上記樹皮との比率が、７：３であることが好ましい。   (3) Moreover, it is preferable that the ratio of the said coffee extraction residue and the said bark is 7: 3.

この混合比率により、発熱量を高くするとともに灰分量を抑制することができる。   With this mixing ratio, the heat generation amount can be increased and the ash content can be suppressed.

(4) また、上記樹皮としては、リグニン又はヘミセルロースを含有するものが好ましい。   (4) The bark preferably contains lignin or hemicellulose.

樹皮がリグニン又はヘミセルロースを含有することにより、これらが接着剤又は結合材としての役割を果たし、コーヒー抽出残渣を含む原料をペレット化しやすくなる。   When the bark contains lignin or hemicellulose, these serve as an adhesive or a binder, making it easy to pelletize the raw material containing the coffee extract residue.

本発明にかかる燃料ペレットによれば、コーヒー抽出残渣と樹皮とを主成分とするので、産業廃棄物であるコーヒー抽出残渣を燃料として利用することができるとともに、燃料ペレットによる発熱量を高くして樹皮による灰分を減少させることができる。   According to the fuel pellet according to the present invention, since the coffee extraction residue and bark are the main components, the coffee extraction residue that is industrial waste can be used as fuel, and the calorific value of the fuel pellet can be increased. The ash content from the bark can be reduced.

以下に、本発明の好ましい実施形態が説明される。なお、本実施形態は本発明の一実施態様にすぎず、本発明の要旨を変更しない範囲で実施態様が変更されてもよいことは言うまでもない。   In the following, preferred embodiments of the present invention will be described. In addition, this embodiment is only one embodiment of this invention, and it cannot be overemphasized that an embodiment may be changed in the range which does not change the summary of this invention.

本発明にかかる燃料ペレットは、原料である細粉体ないし破砕体が、数センチメートル程度のペレット形状に固められたものである。原料となる細粉体ないし破砕体の大きさや形状は特に限定されないが、一例として、コーヒー抽出残渣については１〜５ｍｍ程度の細粉体が、樹皮については５〜１０ｍｍ程度の細粉体が使用される。ペレット形状は特に限定されないが、円柱形状が一般的である。燃料ペレットの寸法も特に限定されないが、円柱形状の燃料ペレットの一例として、直径が数ｍｍ、長さが数十ｍｍ程度のものがあげられる。燃料ペレットは、製造後の保管や輸送の際にペレット形状が容易に破壊されない強度を有する。   The fuel pellet according to the present invention is a material in which a fine powder or crushed material is solidified into a pellet shape of about several centimeters. The size and shape of the fine powder or crushed material used as a raw material are not particularly limited. For example, a fine powder of about 1 to 5 mm is used for the coffee extraction residue, and a fine powder of about 5 to 10 mm is used for the bark. Is done. The pellet shape is not particularly limited, but a cylindrical shape is common. Although the size of the fuel pellet is not particularly limited, an example of a cylindrical fuel pellet is one having a diameter of several millimeters and a length of several tens of millimeters. The fuel pellets have such a strength that the pellet shape is not easily broken during storage and transportation after manufacture.

コーヒー抽出残渣は、コーヒー豆の細粉体ないし破砕体であってコーヒーの抽出加工を終えた残渣である。コーヒー豆の種類やロースト方法、コーヒーの抽出加工方法は特に限定されない。このようなコーヒー抽出残渣は、主として飲料製造工場などから産業廃棄物として排出される。コーヒー抽出残渣は水分を含むが、これは後に乾燥される。コーヒー抽出残渣を含む原料は、最終的に含水率が１５重量％以下、好ましくは８〜１０重量％程度の含水率とされるが、飲料製造工場から排出されたときにおいては、含水率が１５重量％より大きくてもよい。例えば、飲料製造工場で乾燥処理されて排出されるコーヒー抽出残渣は、一般に含水率が３０〜６０重量％程度である。   The coffee extraction residue is a fine powder or crushed product of coffee beans, and is a residue after the coffee extraction process is completed. The type of coffee beans, roasting method, and coffee extraction processing method are not particularly limited. Such coffee extraction residue is discharged as industrial waste mainly from beverage manufacturing factories and the like. The coffee extraction residue contains moisture, which is later dried. The raw material containing the coffee extraction residue has a moisture content of 15% by weight or less, preferably about 8 to 10% by weight, but when it is discharged from a beverage manufacturing factory, the moisture content is 15%. It may be greater than% by weight. For example, a coffee extraction residue discharged after being dried at a beverage manufacturing plant generally has a moisture content of about 30 to 60% by weight.

樹皮は、木の幹や枝を覆う皮状の部分である。木の種類は特に限定されず、針葉樹や広葉樹が広く採用できるが、杉や檜など、林業に用いられる木であって間伐材などから得られるものが廃棄物の有効活用という観点から好適である。この樹皮は、リグニン又はヘミセルロースを含有するものが好ましい。これらが、燃料ペレットにおいて、コーヒー抽出残渣を接着させる接着剤又は結合材としての作用を発揮すると考えられる。   The bark is a skin-like part that covers the trunk and branches of a tree. The type of tree is not particularly limited, and conifers and broadleaf trees can be widely used. Trees used for forestry, such as cedar and firewood, are suitable from the viewpoint of effective use of waste. . The bark preferably contains lignin or hemicellulose. These are considered to exhibit an action as an adhesive or a binder for adhering the coffee extraction residue in the fuel pellet.

本発明にかかる燃料ペレットは、コーヒー抽出残渣及び樹皮を主成分とするものであるが、その他の添加物が加えられてもよい。添加物としては、木質建築廃材や紙くずなどがあげられる。接着剤や結合材、プラスチックなどが添加されてもよいが、これらは燃焼によってダイオキシンなどの人体に有害なおそれがある物質を発生させることがあるので好ましくない。   The fuel pellet according to the present invention is mainly composed of coffee extraction residue and bark, but other additives may be added. Examples of additives include wooden building waste and waste paper. Adhesives, binders, plastics, and the like may be added, but these are not preferred because they may generate substances that may be harmful to the human body, such as dioxins, by combustion.

以下に、本発明にかかる燃料ペレットの製造方法の一例が説明される。図１は、燃料ペレットの製造方法を示すフローチャートである。同図に示されるように、まず、原料であるコーヒー抽出残渣及び樹皮が均一な細粉体に破砕される（第１工程：Ｓ１）。第１工程は、必ずしもコーヒー抽出残渣と樹皮とが混合された状態で行われる必要はなく、各々が別途に所望の大きさの細粉体に破砕されてもよい。また、飲料製造工場から排出される際に、既にコーヒー抽出残渣が所望の大きさの細粉体である場合には、コーヒー抽出残渣について第１工程が省略されてもよい。一方、例えば杉や檜の間伐材などから得られた樹皮が輸送に適した大きさのシート形状やチップ形状である場合には、さらに所望の大きさの細粉体に破砕する。この樹皮の破砕は、例えばミル形粉砕装置などを用いて行われ、さらに所望の大きさのメッシュを備えた振動篩い機などにより所望の大きさの細粉体が選別される。   Below, an example of the manufacturing method of the fuel pellet concerning this invention is demonstrated. FIG. 1 is a flowchart showing a method for producing fuel pellets. As shown in the figure, first, the coffee extraction residue and bark as raw materials are crushed into uniform fine powder (first step: S1). The first step is not necessarily performed in a state where the coffee extraction residue and the bark are mixed, and each may be separately crushed into a fine powder of a desired size. Further, when the coffee extraction residue is already a fine powder having a desired size when discharged from the beverage manufacturing factory, the first step may be omitted for the coffee extraction residue. On the other hand, for example, when the bark obtained from cedar or thinned timber has a sheet shape or chip shape having a size suitable for transportation, the bark is further crushed into a fine powder having a desired size. The bark is crushed by using, for example, a mill-type pulverizer, and a fine powder having a desired size is selected by a vibrating sieve equipped with a mesh having a desired size.

つづいて、細粉体とされたコーヒー抽出残渣及び樹皮が乾燥される（第２工程：Ｓ２）。第２工程は、必ずしもコーヒー抽出残渣と樹皮とが混合された状態で行われる必要はなく、各々が別途に乾燥されてもよい。乾燥は、例えばロータリードラム乾燥機を用いて行われ、コーヒー抽出残渣及び樹皮の含水率が１５重量％以下、好ましくは８〜１０重量％程度になるように乾燥される。また、製造工程において必要であれば、コーヒー抽出残渣及び樹皮の含水率が１５重量％程度となるように加水されてもよい。   Subsequently, the coffee extraction residue and bark made into a fine powder are dried (second step: S2). The second step is not necessarily performed in a state where the coffee extraction residue and the bark are mixed, and each may be separately dried. The drying is performed using, for example, a rotary drum dryer, and is dried so that the moisture content of the coffee extraction residue and the bark is 15% by weight or less, preferably about 8 to 10% by weight. Further, if necessary in the production process, the water content of the coffee extraction residue and the bark may be added so as to be about 15% by weight.

つづいて、コーヒー抽出残渣及び樹皮を主成分としてペレット成形が行われる（第３工程：Ｓ３）。ペレット成形は、例えばペレタイザーと称される木質ペレット製造器により行われる。ペレタイザーのホッパには、コーヒー抽出残渣の細粉体及び樹皮の細粉体が所定の割合で混合された原料が投入される。ただし、コーヒー抽出残渣及び樹皮の混合は、必ずしもペレット成形の際に行われる必要はなく、例えば乾燥工程（第１工程）において混合されていてもよい。コーヒー抽出残渣の細粉体と樹皮の細粉体との混合割合は、２：８〜８：２とすることが好ましく、特に（コーヒー抽出残渣）：（樹皮）をほぼ３：７とすることが、燃料ペレットの発熱量を化石燃料と同等以上としつつ燃焼後の灰分量を少なくするという観点から好適である。なお、この混合比は重量比であって、その際のコーヒー抽出残渣及び樹皮の含水率は８〜１５重量％である。   Subsequently, pellet molding is performed with the coffee extraction residue and bark as the main components (third step: S3). Pellet molding is performed by, for example, a wood pellet maker called a pelletizer. A raw material in which a fine powder of coffee extraction residue and a fine powder of bark are mixed at a predetermined ratio is put into a hopper of the pelletizer. However, the coffee extraction residue and the bark are not necessarily mixed at the time of pellet forming, and may be mixed, for example, in a drying step (first step). The mixing ratio between the fine powder of coffee extraction residue and the fine powder of bark is preferably 2: 8 to 8: 2, and in particular, (coffee extraction residue) :( bark) is approximately 3: 7. However, it is preferable from the viewpoint of reducing the amount of ash after combustion while keeping the calorific value of the fuel pellet equal to or higher than that of fossil fuel. In addition, this mixing ratio is a weight ratio, and the moisture content of the coffee extraction residue and bark at that time is 8 to 15% by weight.

また、前述されたように燃料ペレットの形状や寸法は特に限定されず、使用するペレタイザーや燃焼効率などを考慮して形状及び寸法が適宜設定される。また、添加剤を使用することは必ずしも排除されないが、樹皮に含まれるリグニン又はヘミセルロースが接着剤又は結合材の役割を果たすので、接着剤又は結合材の如き添加剤は一般に不要である。   Further, as described above, the shape and size of the fuel pellet are not particularly limited, and the shape and size are appropriately set in consideration of the pelletizer to be used, combustion efficiency, and the like. Although the use of additives is not necessarily excluded, additives such as adhesives or binders are generally unnecessary because lignin or hemicellulose contained in the bark serves as an adhesive or binder.

ペレット成形により得られた燃料ペレットは、冷却される（第４工程：Ｓ４）。この冷却は、ペレタイザーによりペレット成形されて順次排出される燃料ペレットに対して、ファンなどによって送風されることにより行われる。この冷却によって、樹皮に含まれるリグニン又はヘミセルロースが硬化して、燃料ペレットが所望の強度となる。   The fuel pellet obtained by the pellet molding is cooled (fourth step: S4). This cooling is performed by blowing air by a fan or the like to the fuel pellets that are pelletized by the pelletizer and sequentially discharged. By this cooling, the lignin or hemicellulose contained in the bark is cured, and the fuel pellets have a desired strength.

つづいて、冷却された燃料ペレットから、ペレット成形されずに残った原料やペレット成形の際に生ずる欠片などの残留物が、冷却された燃料ペレットから除去される（第５工程：Ｓ５）。除去された残留物は、原料に混入されて再びペレット成形されてもよい。そして、残留物が除去された燃料ペレットが所望の容量の袋に袋詰めされる（第６工程：Ｓ６）。   Subsequently, from the cooled fuel pellets, raw materials remaining without being molded into pellets and residues such as fragments generated during the molding of the pellets are removed from the cooled fuel pellets (fifth step: S5). The removed residue may be mixed with the raw material and pelletized again. Then, the fuel pellets from which the residue has been removed are packed in a desired capacity bag (sixth step: S6).

このように、コーヒー抽出残渣を燃料ペレットとして利用することにより、産業廃棄物であるコーヒー抽出残渣の利用が促進される。また、コーヒー抽出残渣を樹皮とともに燃料ペレットとすることによって、コーヒー抽出残渣がペレット形状に固められるので、ボイラーなどの燃焼装置の集塵機を目詰まりさせることがない。また、前述された燃料ペレットは、発熱量が高いので、燃料としての価値が高い。さらには、燃料ペレットが高温で燃焼されるので、樹皮からの灰分量が減少される。   Thus, utilization of the coffee extraction residue which is industrial waste is accelerated | stimulated by utilizing a coffee extraction residue as a fuel pellet. Further, by making the coffee extraction residue into fuel pellets together with the bark, the coffee extraction residue is solidified into a pellet shape, so that the dust collector of the combustion apparatus such as a boiler is not clogged. Moreover, since the fuel pellets described above have a high calorific value, they are highly valuable as fuel. Furthermore, since the fuel pellets are burned at high temperatures, the amount of ash from the bark is reduced.

以下、本発明にかかる燃料ペレットの実施例について説明する。なお、本発明が以下の実施例に限定されないことは勿論である。   Examples of fuel pellets according to the present invention will be described below. Needless to say, the present invention is not limited to the following examples.

（実施例）
［燃料ペレット］
細粉体の径が約１〜２ｍｍ、含水率が６０重量％のコーヒー抽出残渣を、１９０〜２００℃に温度設定されたロータリ温風乾燥機（株式会社土佐テック製）によって含水率が１５重量％となるまで乾燥した。また、杉の樹皮をチッパーで裁断して約６ｍｍの細粉体として、１９０〜２００℃に温度設定されたロータリ温風乾燥機によって含水率が１５重量％となるまで乾燥した。そして、乾燥されたコーヒー抽出残渣の細粉体及び杉の樹皮の細粉体を、７：３の比率で混合して、ペレタイザー（株式会社土佐テック製）によって燃料ペレットに成形加工した。 (Example)
[Fuel pellet]
A coffee extraction residue having a fine powder diameter of about 1 to 2 mm and a moisture content of 60% by weight is 15% by a rotary hot air dryer (manufactured by Tosa Tech Co., Ltd.) set at a temperature of 190 to 200 ° C. % Until dry. Further, the bark of cedar was cut with a chipper to obtain a fine powder of about 6 mm, which was dried by a rotary hot air dryer set at 190 to 200 ° C. until the water content became 15% by weight. Then, the dried fine powder of coffee extraction residue and the fine powder of cedar bark were mixed at a ratio of 7: 3 and molded into a fuel pellet by a pelletizer (manufactured by Tosa Tech Co., Ltd.).

［灰分定量試験］
実施例で得られた燃料ペレットについて、日本工業規格「ＪＩＳ Ｍ ８８１２ 石炭及びコークス類の工業分析方法」における「灰分定量法」に準じて灰分定量試験を行った。また、比較例として、コーヒー抽出残渣のみについても同様に灰分定量試験を行った。その結果を表１に示す。 [Ash content determination test]
The fuel pellets obtained in the examples were subjected to an ash content determination test in accordance with the “ash content determination method” in the Japanese Industrial Standard “JIS M 8812 Coal and Coke Industrial Analysis Method”. In addition, as a comparative example, the ash content determination test was similarly performed for only the coffee extraction residue. The results are shown in Table 1.

Figure 2009102468
Figure 2009102468

［発熱量試験］
実施例で得られた燃料ペレットについて、日本工業規格「ＪＩＳ Ｋ ２２７９ 原油及び石油製品」における「発熱量試験方法」に準じて発熱量試験を行った。また、比較例として、コーヒー抽出残渣のみについても同様に発熱量試験を行った。コーヒー抽出残渣は、含水量が６０重量％のものを実施例と同様にして１５重量％まで乾燥し、さらに乾燥したものを試料として用いた。その結果を表２に示す。 [Heat generation test]
About the fuel pellet obtained in the Example, the calorific value test was done according to "The calorific value test method" in Japanese Industrial Standard "JIS K 2279 crude oil and petroleum products". In addition, as a comparative example, a calorific value test was similarly performed for only the coffee extraction residue. The coffee extraction residue having a water content of 60% by weight was dried to 15% by weight in the same manner as in the Examples, and the dried product was used as a sample. The results are shown in Table 2.

Figure 2009102468
Figure 2009102468

［評価］
実施例にかかる燃料ペレットの灰分量は、１．８％であった。一般に、樹皮以外の木部のみで製造されるホワイトペレットの灰分量は１％程度であり、樹皮及び木部より製造されるグレーペレットの灰分量は３％程度である。また、樹皮のみで製造されるバークペレットの灰分量は７％程度である。これらと比較すると、実施例にかかる燃料ペレットの灰分量は、コーヒー抽出残渣のみより多いものの、グレーペレットやバークペレットより少なかった。 [Evaluation]
The ash content of the fuel pellet according to the example was 1.8%. In general, the ash content of white pellets produced only from xylem other than bark is about 1%, and the ash content of gray pellets produced from bark and xylem is about 3%. Moreover, the amount of ash of the bark pellet manufactured only with a bark is about 7%. Compared with these, the amount of ash in the fuel pellets according to the examples was larger than that of the coffee extraction residue but less than that of gray pellets and bark pellets.

また、実施例にかかる燃料ペレットの発熱量は４５００kcal/hであった。一般に、ホワイトペレットの発熱量は３８００〜４３００kcal/hであり、グレーペレットの発熱量は４０００kcal/hであり、バークペレットの発熱量は３８００〜４０００kcal/hである。これらと比較すると、実施例にかかる燃料ペレットの発熱量は、コーヒー抽出残渣のみより高いことはもちろん、ホワイトペレット、グレーペレット及びバークペレットのいずれよりも高い発熱量であった。なお、比較例にかかるコーヒー抽出残渣は、ホワイトペレット、グレーペレット及びバークペレットと同等以上の発熱量であったが、これはコーヒー抽出残渣の含水量を１５重量％より少なくなるまで乾燥した結果、高い発熱量が得られたものと考えられる。   The calorific value of the fuel pellet according to the example was 4500 kcal / h. Generally, the calorific value of white pellets is 3800-4300 kcal / h, the calorific value of gray pellets is 4000 kcal / h, and the calorific value of bark pellets is 3800-4000 kcal / h. Compared with these, the calorific value of the fuel pellet according to the example was higher than that of only the coffee extraction residue, and was higher than that of any of the white pellet, gray pellet and bark pellet. In addition, although the coffee extraction residue concerning a comparative example was the calorific value equivalent to or more than a white pellet, a gray pellet, and a bark pellet, as a result of drying until the moisture content of a coffee extraction residue became less than 15 weight%, It is considered that a high calorific value was obtained.

図１は、燃料ペレットの製造方法を示すフローチャートである。FIG. 1 is a flowchart showing a method for producing fuel pellets.

Claims (4)

コーヒー抽出残渣と樹皮とを主成分とする燃料ペレット。   Fuel pellets mainly composed of coffee extraction residue and bark. 上記コーヒー残渣の細粉体と上記樹皮の細粉体とを含む原料がペレット化された請求項１に記載の燃料ペレット。   The fuel pellet according to claim 1, wherein the raw material containing the fine powder of the coffee residue and the fine powder of the bark is pelletized. 上記コーヒー抽出残渣と上記樹皮との比率が、７：３である請求項１又は２に記載の燃料ペレット。   The fuel pellet according to claim 1 or 2, wherein a ratio of the coffee extraction residue to the bark is 7: 3. 上記樹皮は、リグニン又はヘミセルロースを含有する請求項１から３のいずれかに記載の燃料ペレット。   4. The fuel pellet according to claim 1, wherein the bark contains lignin or hemicellulose.
JP2007273383A 2007-10-22 2007-10-22 Fuel pellet Pending JP2009102468A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007273383A JP2009102468A (en) 2007-10-22 2007-10-22 Fuel pellet
PCT/JP2007/072722 WO2009054080A1 (en) 2007-10-22 2007-11-26 Fuel pellets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007273383A JP2009102468A (en) 2007-10-22 2007-10-22 Fuel pellet

Publications (1)

Publication Number Publication Date
JP2009102468A true JP2009102468A (en) 2009-05-14

Family

ID=40579190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007273383A Pending JP2009102468A (en) 2007-10-22 2007-10-22 Fuel pellet

Country Status (2)

Country Link
JP (1) JP2009102468A (en)
WO (1) WO2009054080A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101033212B1 (en) 2011-03-10 2011-05-06 주식회사 이라산업 A method for making coffee-meal pellets fuel and coffee-meal pellets thereby
KR101343472B1 (en) * 2013-07-12 2013-12-20 (유) 이지테크 Coffee husk component containing pellet and method for making the same
KR101579115B1 (en) * 2015-01-13 2015-12-21 공정애 Fuel pellet using coffee remnants, and method for preparing the same
KR101621268B1 (en) * 2014-08-08 2016-05-31 나용훈 Method for manufacturing solid fuel using coffee grounds
KR101774991B1 (en) 2015-08-12 2017-09-05 신의철 Method of manufacturing recycling briquet using coffee by-products
KR101887377B1 (en) * 2017-08-02 2018-09-07 (주)파코렛 Method for manufacturing fuel pellet using coffee sludge and paper sludge
WO2019050058A1 (en) * 2017-09-06 2019-03-14 주식회사 씨이 Fuel, comprising parchment coffee and wood, for reducing harmful substances, and method for manufacturing same
JP7153965B1 (en) * 2021-08-31 2022-10-17 タオ・エンジニアリング株式会社 Co-processing method and co-processing apparatus for bark and waste cooking oil, co-processing apparatus for bark, waste cooking oil and waste food, and crushed bark fried body

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011084713A (en) * 2009-10-16 2011-04-28 Sk Forest Co Ltd Woody pellet manufacturing method
FR3018818A1 (en) * 2014-03-20 2015-09-25 Citizen Fire COMPOSITION AND PROCESS FOR MANUFACTURING A COMBUSTIBLE CHUCK COMPRISING COFFEE MARC AND BUCK OBTAINED
JP6691508B2 (en) * 2017-06-06 2020-04-28 日本製紙株式会社 Solid fuel manufacturing method and solid fuel
IT201700032388A1 (en) * 2018-03-06 2019-09-06 Gabriele Succi PELLET MADE WITH AGGREGANT COFFEE WASTE AND NATURAL ADDITIVES
EP3599267A1 (en) * 2018-07-28 2020-01-29 Service Srl Global Pellets realized by aggregants of coffee refuse and natural additives

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1060464A (en) * 1996-08-21 1998-03-03 Shinagawa Fuel Co Ltd Formed charcoal and its production

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101033212B1 (en) 2011-03-10 2011-05-06 주식회사 이라산업 A method for making coffee-meal pellets fuel and coffee-meal pellets thereby
KR101343472B1 (en) * 2013-07-12 2013-12-20 (유) 이지테크 Coffee husk component containing pellet and method for making the same
WO2015005572A1 (en) * 2013-07-12 2015-01-15 (유)이지테크 Pellet containing coffee husk ingredient and preparation method thereof
KR101621268B1 (en) * 2014-08-08 2016-05-31 나용훈 Method for manufacturing solid fuel using coffee grounds
KR101579115B1 (en) * 2015-01-13 2015-12-21 공정애 Fuel pellet using coffee remnants, and method for preparing the same
KR101774991B1 (en) 2015-08-12 2017-09-05 신의철 Method of manufacturing recycling briquet using coffee by-products
KR101887377B1 (en) * 2017-08-02 2018-09-07 (주)파코렛 Method for manufacturing fuel pellet using coffee sludge and paper sludge
WO2019050058A1 (en) * 2017-09-06 2019-03-14 주식회사 씨이 Fuel, comprising parchment coffee and wood, for reducing harmful substances, and method for manufacturing same
JP7153965B1 (en) * 2021-08-31 2022-10-17 タオ・エンジニアリング株式会社 Co-processing method and co-processing apparatus for bark and waste cooking oil, co-processing apparatus for bark, waste cooking oil and waste food, and crushed bark fried body

Also Published As

Publication number Publication date
WO2009054080A1 (en) 2009-04-30

Similar Documents

Publication Publication Date Title
JP2009102468A (en) Fuel pellet
JP6255325B2 (en) Pellet or briquette manufacturing method
Miranda et al. Characterization of grape pomace and pyrenean oak pellets
Kargbo et al. Pretreatment for energy use of rice straw: A review
JP2019502013A (en) Biofuel
CN102666880A (en) Method for using biomass in blast furnace
CN105683691A (en) Biomass processing device and method
CA2909407A1 (en) Torrefaction process
WO2010075306A1 (en) Coal particles briquette where the binder is lignin and methods and systems of preparing the same
JP2014098097A (en) Method for producing solid fuel and solid fuel
JP6161242B2 (en) Manufacturing method of mixed fuel
CA2686853A1 (en) Apparatus and method for making fuel using forest residue
Japhet et al. A review of pellet production from biomass residues as domestic fuel
JP2011140610A (en) Method for producing composite fuel
KR100981418B1 (en) Wood pellet containing shell powder and manufacturing method thereof
CN105602647A (en) Household garbage, sawdust, cow dung and lime powder mixed formed fuel and preparation process thereof
JP6243982B2 (en) Method for producing molded product for mixed fuel
JP6271832B2 (en) Method for producing solid fuel
JP2008303305A (en) Woody pellet fuel, and production method and production system for woody pellet fuel
Alamsyah Fuel Pellet from Oil Producing Plants
Varnero et al. Power form agripellets
JP6283724B2 (en) Manufacturing method of mixed fuel
JP6283727B2 (en) Manufacturing method of mixed fuel
Singh et al. Improving Woody Biomass Pellets in Residential Application
Moreno-Ariasa et al. International overview of the use of spent coffee ground as solid fuel. A review of worldwide studies