JP5770538B2 - Treatment method of palm waste oil - Google Patents
Treatment method of palm waste oil Download PDFInfo
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- JP5770538B2 JP5770538B2 JP2011127231A JP2011127231A JP5770538B2 JP 5770538 B2 JP5770538 B2 JP 5770538B2 JP 2011127231 A JP2011127231 A JP 2011127231A JP 2011127231 A JP2011127231 A JP 2011127231A JP 5770538 B2 JP5770538 B2 JP 5770538B2
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- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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Description
本発明は、椰子からパーム油を絞った際に生じる絞り粕としての廃液（「パーム廃油」と称する）の処理方法に関する。 The present invention relates to a method for treating a waste liquid (referred to as “palm waste oil”) as squeezed rice cake produced when palm oil is squeezed from a palm.
パーム油は、アブラヤシ（オイルパーム）という椰子の実から搾られる植物油であり、食用油、マーガリン、ショートニング、石鹸の原料として利用されているほか、近年では、バイオディーゼル燃料としての利用も進められており、その生産量は年々増加している。 Palm oil is a vegetable oil squeezed from oil palm (oil palm) and is used as a raw material for edible oil, margarine, shortening and soap. In recent years, it has also been used as a biodiesel fuel. The production volume is increasing year by year.
１トンのパーム油を生産すると、１トンの固形廃物と１．５トンの絞り粕としてのパーム廃油が生じると言われており、パーム油の生産量の増加に伴って、これら固形廃物及びパーム廃油の量も増えているため、これらの処理が問題となっている。 It is said that when 1 ton of palm oil is produced, 1 ton of solid waste and 1.5 ton of palm waste oil as squeezed rice cake are produced. As the production of palm oil increases, these solid waste and palm Since the amount of waste oil is also increasing, these treatments are problematic.
パーム廃油は、うまく処理して精製すれば、燃料として十分に使用可能であることは分かっているものの、粘性が極めて高くて扱いづらいため、従来、適当な処理方法が見出されていないのが現状であった。 Although it is known that palm waste oil can be sufficiently used as fuel if it is treated and refined well, its viscosity is extremely high and it is difficult to handle it. It was the current situation.
パーム廃油の処理方法として、凝集剤を用いて粘性成分を分離除去することが考えられる。
本発明者は、従来、凝集剤として、焼成粉状化された動物骨粉を硫酸又は塩酸に溶解してなる骨溶解液からなる動物骨含有凝集剤を提案している（特許文献１）。
また、粉末状で、且つ純水に添加するとｐＨ５〜９を示す凝集剤であって、金属成分を吸着してなる多孔質粒子からなる酸性の粉末と、リン酸カルシウムを吸着してなる多孔質粒子からなるアルカリ性の粉末とを混合状態で含む凝集剤を提案している（特許文献２）。
As a method for treating palm waste oil, it is conceivable to separate and remove viscous components using a flocculant.
The inventor of the present invention has conventionally proposed an animal bone-containing flocculant comprising a bone lysate obtained by dissolving calcined animal bone powder in sulfuric acid or hydrochloric acid as a flocculant (Patent Document 1).
Moreover, it is a flocculant which is in the form of powder and has a pH of 5 to 9 when added to pure water, and is composed of an acidic powder composed of porous particles formed by adsorbing metal components and porous particles formed by adsorbing calcium phosphate. The coagulant | flocculant which contains the alkaline powder used as a mixture is proposed (patent document 2).
上記の如く従来提案している凝集剤では、パーム廃油の粘性成分をうまく除去することができず、燃料として使用可能な程度に処理することができなかった。
そこで本発明は、燃料として使用可能な程度に処理することができる、パーム廃油の新たな処理方法を提案せんとするものである。
As described above, the conventionally proposed coagulant cannot remove the viscous component of palm waste oil well, and cannot be treated to the extent that it can be used as fuel.
Therefore, the present invention proposes a new method for treating palm waste oil that can be treated to the extent that it can be used as fuel.
本発明は、椰子からパーム油を絞った際に生じる絞り粕としてのパーム廃油を加熱して溶融し、この溶融液に酸性凝集剤を添加し、溶融液上に浮上する浮上組成物を除去した後、アルカリ溶液を加えて凝集沈殿を生じさせ、固液分離することを特徴するパーム廃油の処理方法であって、前記酸性凝集剤として、焼成動物骨粉を酸溶液に溶解し、得られた溶解液をアルミニウムと共に無機多孔質体に含浸させてなる酸性凝集剤を用いることを特徴とするパーム廃油の処理方法を提案するものである。 The present invention heats and melts palm waste oil as squeezed lees produced when palm oil is squeezed from an insulator, and an acidic flocculant is added to the melt to remove the floating composition that floats on the melt. Thereafter, an alkali solution is added to cause coagulation precipitation, and solid-liquid separation is a method for treating palm waste oil, which is obtained by dissolving calcined animal bone meal in an acid solution as the acid coagulant. The present invention proposes a method for treating palm waste oil, which uses an acidic flocculant obtained by impregnating a liquid with aluminum into an inorganic porous material.
本発明が提案するパーム廃油の処理方法によれば、特定の酸性凝集剤とアルカリ溶液を用いて固液分離することによって、固体成分として、リンを含む粘性成分を分離除去できるため、液体成分を回収することにより、燃料として使用できる程度に粘性の低いパーム廃油精製油を得ることができる。また、前記のように分離除去した固体成分は、リンを多く含むリン含有組成物であるため、肥料などとして利用可能である。 According to the method for treating palm waste oil proposed by the present invention, by separating the solid component into a solid component using a specific acidic flocculant and an alkaline solution, a viscous component containing phosphorus can be separated and removed. By recovering, it is possible to obtain a palm waste oil refined oil having a viscosity low enough to be used as a fuel. Moreover, since the solid component separated and removed as described above is a phosphorus-containing composition containing a large amount of phosphorus, it can be used as a fertilizer.
次に、実施の形態例に基づいて本発明を説明するが、本発明が次に説明する実施形態に限定されるものではない。 Next, the present invention will be described based on exemplary embodiments, but the present invention is not limited to the embodiments described below.
本実施形態のパーム廃油の処理方法（「本処理方法」と称する）は、パーム廃油を加熱して溶融する加熱溶融工程、溶融液に酸性凝集剤を添加する酸性凝集剤添加工程、溶融液上に浮上する浮上組成物を除去する浮上組成物除去工程、アルカリ溶液を加えるアルカリ添加工程、凝集沈殿物を固液分離する固液分離工程を経て処理することを特徴とするものである。以下、原料及び各工程について詳述する。 A method for treating palm waste oil according to the present embodiment (referred to as “this treatment method”) includes a heating and melting step in which palm waste oil is heated and melted, an acidic flocculant addition step in which an acidic flocculant is added to the melt, It is characterized by being processed through a floating composition removing step for removing the floating composition floating on the surface, an alkali addition step for adding an alkaline solution, and a solid-liquid separation step for solid-liquid separation of the aggregated precipitate. Hereinafter, the raw material and each process will be described in detail.
＜パーム廃油＞
原料としてのパーム廃油は、椰子からパーム油を絞った際に生じる絞り粕であり、粘性が高く、リンを多く含んでいる特徴がある。このリンが粘性の原因とも考えられる。
<Palm waste oil>
Palm waste oil as a raw material is a squeezed lees produced when palm oil is squeezed from an insulator, and is characterized by high viscosity and high phosphorus content. This phosphorus is also considered to cause viscosity.
＜加熱溶融工程＞
先ず、パーム廃油を加熱して溶融する。この際、加熱して攪拌しながら溶融するのが好ましい。
加熱温度としては、６０〜１８０℃とするのが好ましく、特に好ましくは８０℃以上或いは１６０℃以下である。
<Heating and melting process>
First, palm waste oil is heated and melted. At this time, it is preferable to melt while heating and stirring.
The heating temperature is preferably 60 to 180 ° C, particularly preferably 80 ° C or higher or 160 ° C or lower.
＜酸性凝集剤添加工程＞
添加する酸性凝集剤としては、動物骨粉を焼成し粉状化してなる焼成動物骨粉を酸溶液に溶解し、好ましくは溶解液を加熱しながら、アルミニウムと共に無機多孔質体に含浸させてなる酸性凝集剤を用いるのが好ましい。
<Acid flocculant addition process>
The acidic flocculant to be added is obtained by dissolving animal bone powder obtained by baking animal bone powder into powder and dissolving it in an acid solution, and preferably impregnating the inorganic porous body with aluminum while heating the solution. It is preferable to use an agent.
ここで、酸性凝集剤は、純水に添加して溶解させると酸性域のｐＨを示す酸性の凝集剤であり、この際、酸性域のｐＨとは、例えばｐＨ０〜６であり、中でもｐＨ０〜３、その中でもｐＨ０〜２であるのが特に好ましい。 Here, the acidic flocculant is an acidic flocculant that shows the pH of the acidic region when added to pure water and dissolved, and the pH of the acidic region is, for example, pH 0 to 6, particularly pH 0 to 0. 3 and particularly preferably pH 0-2.
（焼成動物骨粉）
焼成動物骨粉としては、動物の骨を原料とする骨粉であるが、豚、猪等は軟骨が多く、製造途中の煮沸工程で大部分が溶けてしまうので、牛、馬、羊など硬骨を主体とする動物の骨、特に牛の骨を原料としたものが好ましい。
焼成動物骨粉は、８００〜１８００℃前後、特に８００〜１１００℃前後で焼成したものが好ましい。このように焼成して得られる焼成動物骨粉は、粒子の内外に渡って連通した無数の微小気孔を備えた微粒子からなり、リン酸カルシウムを９０重量％以上含んでいる。
元素組成としては、リン及びカルシウムを主成分とし、バリウム、ナトリウム、イオウ、マグネシウム、カリウム、塩素、アミン、鉄等を含有し、イオン化すればアルカリ性を呈する。
(Fired animal bone meal)
Baked animal bone meal is bone meal made from animal bones, but pigs, salmon, etc. have a lot of cartilage, and most of them are melted in the boiling process during production. Preferred are those made from animal bones, especially cattle bones.
The calcined animal bone powder is preferably calcined at around 800 to 1800 ° C, particularly around 800 to 1100 ° C. The calcined animal bone powder obtained by calcining in this way consists of fine particles having innumerable micropores communicating inside and outside the particles, and contains 90% by weight or more of calcium phosphate.
The elemental composition is mainly composed of phosphorus and calcium, contains barium, sodium, sulfur, magnesium, potassium, chlorine, amine, iron and the like, and exhibits an alkaline property when ionized.
焼成動物骨粉は、２０メッシュ〜４００メッシュ、特に２００メッシュ〜３２５メッシュのものが好ましい。粒度分布で言えば、中心粒径（Ｄ５０）が１μｍ〜１０μｍ、Ｄ５０が１μｍ〜５μｍのものが好ましい。 The calcined animal bone powder is preferably 20 mesh to 400 mesh, particularly 200 mesh to 325 mesh. In terms of particle size distribution, those having a center particle size (D50) of 1 μm to 10 μm and D50 of 1 μm to 5 μm are preferable.
ここで、焼成動物骨粉の製造方法の一例について説明するが、本凝集剤で用いる焼成動物骨粉の製造方法を次の方法に限定するものではない。 Here, although an example of the manufacturing method of a baked animal bone powder is demonstrated, the manufacturing method of the baked animal bone powder used with this flocculant is not limited to the following method.
上記動物の生骨を適度な大きさに切断しつつ、煮沸しやすい大きさにカッティングし、次いで、生骨を圧力釜（圧縮釜）に投入し、５気圧前後の圧力をかけて約２００〜４００℃で６０分程度煮沸する。この煮沸工程は、にかわ、脂肪、骨ずい等の有機物を骨から分離除去するための工程である。この煮沸工程によって骨の外側のみならず気孔内に付着している有機物を骨からほぼ分離除去することができる。
煮沸工程では、５気圧前後の圧力をかけて煮沸する。これにより骨に付着する有機物の分離作用を促進させることができる。また、煮沸する際、圧力釜の中にカセイソーダまたは製造済みの骨粉を混入して煮沸することが好適である。こうすると、カセイソーダや水酸化カリウム等のアルカリの作用で有機物が鹸化されて水に溶けやすくなり、これにより有機物の分離作用を促進させることができ煮沸時間をさらに短縮することができる。この場合のカセイソーダまたは骨粉の混入量としては、生骨２００ｋｇに対してカセイソーダを２００ｃｃ〜３００ｃｃまたは骨粉を５００ｇ〜１ｋｇ程度混入することが好ましい。そして、煮沸後の骨には水または熱水をかけて有機物その他の汚れを落としておくのが好ましい。
続いて、煮沸後の骨を、必要に応じて、凍結庫（冷凍庫）に閉じ込めて凍結を行う。但し、必ずしも凍結しなくてもよい。
この凍結工程は、凍結後の骨が極めて脆く粉砕しやすいという点に着目し、煮沸後の骨を直接凍結させるための工程である。凍結時の温度はマイナス１００℃〜マイナス４０℃程度、凍結時間は１時間〜３時間前後が好ましい。
次に、煮沸後の骨（上記の如く凍結させた場合には凍結した状態の骨）をハンマーを用いて荒挽き状に粉砕し、さらにパウダー機にかけて粉末状にする。
そして、上記の工程を経た骨粉を炉の中で焼成し、最終的に分級等により粒度範囲を調製する。
焼成条件としては、焼成温度を８００〜１８００℃前後、好ましくは８００〜１１００℃前後で、焼成時間６０分間〜１８０分前後で焼成するのがよい。これにより、骨粉内に残存し得る若干の有機物を除去したセラミックスを得ることができる。
Cutting the animal's raw bone to an appropriate size while cutting it to a size that is easy to boil, then throwing the raw bone into a pressure kettle (compression kettle) and applying a pressure of about 5 atm to about 200- Boil at 400 ° C for about 60 minutes. This boiling step is a step for separating and removing organic substances such as glue, fat, and bone from the bone. By this boiling step, organic substances adhering not only outside the bone but also inside the pores can be almost separated and removed from the bone.
In the boiling step, boiling is performed by applying a pressure of about 5 atm. Thereby, the separation action of the organic matter adhering to the bone can be promoted. Moreover, when boiling, it is preferable to boil by mixing caustic soda or manufactured bone powder in the pressure cooker. If it carries out like this, organic substance will saponify by the effect | action of alkalis, such as caustic soda and potassium hydroxide, and it will become easy to melt | dissolve in water, and this can accelerate | stimulate the separation effect | action of organic substance, and can shorten boiling time further. The amount of caustic soda or bone powder mixed in this case is preferably about 200 cc to 300 cc of caustic soda or about 500 g to 1 kg of bone powder per 200 kg of raw bone. And it is preferable to pour water or hot water on the boiled bone to remove organic matter and other dirt.
Subsequently, the boiled bone is frozen in a freezer (freezer) as necessary. However, it does not necessarily have to be frozen.
This freezing process is a process for directly freezing the boiled bone, paying attention to the fact that the frozen bone is extremely brittle and easily pulverized. The temperature during freezing is preferably about minus 100 ° C. to minus 40 ° C., and the freezing time is preferably around 1 hour to 3 hours.
Next, the boiled bone (frozen bone when frozen as described above) is crushed into a coarse shape using a hammer, and further powdered by a powder machine.
And the bone meal which passed through said process is baked in a furnace, and a particle size range is finally prepared by classification etc.
As firing conditions, the firing temperature is about 800 to 1800 ° C., preferably about 800 to 1100 ° C., and the firing time is about 60 minutes to 180 minutes. Thereby, ceramics from which some organic substances that may remain in the bone powder are removed can be obtained.
（酸溶液）
焼成動物骨粉を溶解する酸溶液としては、硫酸、硝酸、塩酸、スルハミン酸などを挙げることができるが、焼成動物骨粉の溶解性が特に優れている点から、スルハミン酸溶液が好ましい。
酸性液のｐＨは、ｐＨ０〜６、中でもｐＨ０〜３、その中でもｐＨ０〜２であるのが特に好ましい。
(Acid solution)
Examples of the acid solution for dissolving the calcined animal bone powder include sulfuric acid, nitric acid, hydrochloric acid, sulfamic acid and the like, but the sulfamic acid solution is preferable because the solubility of the calcined animal bone powder is particularly excellent.
The pH of the acidic solution is preferably pH 0-6, particularly pH 0-3, and particularly preferably pH 0-2.
（無機多孔質体）
焼成動物骨粉を酸溶液に溶解して得られた溶解液を含浸させる無機多孔質体としては、二酸化珪素粒子粉末などを挙げることができる。中でも特にシリカ粉末が好ましい。
無機多孔質体の粒径は、細かいほど反応面積が大きくなり凝集力が高まるから、中心粒径（Ｄ５０）が２００μｍ以下、中でも１００μｍ以下であるのが好ましい。
(Inorganic porous material)
Examples of the inorganic porous material impregnated with a solution obtained by dissolving fired animal bone powder in an acid solution include silicon dioxide particle powder. Among these, silica powder is particularly preferable.
The finer the particle size of the inorganic porous body, the larger the reaction area and the higher the cohesive force. Therefore, the center particle size (D50) is preferably 200 μm or less, and more preferably 100 μm or less.
（添加成分）
焼成動物骨粉を酸溶液に溶解し、得られた溶解液に金属成分を添加し、無機多孔質体に含浸させるのが好ましい。
添加する金属成分としては、チタン、アルミニウム、銅及び亜鉛のうちの一種又は二種以上の組合せからなるものを挙げることができる。中でも、アルミニウムが好ましい。
(Additive ingredients)
It is preferable to dissolve the calcined animal bone powder in an acid solution, add a metal component to the resulting solution, and impregnate the inorganic porous material.
As the metal component to be added, mention may be made of titanium, aluminum, made of one or two or more combinations of copper and zinc. Among these, aluminum is preferable.
（加熱含浸処理）
焼成動物骨粉を酸溶液に溶解して得られた溶解液を無機多孔質体に含浸させる際、当該溶解液を加熱させながら含浸させることで、含浸を効果的に促進させることができる。この際の加熱温度は６０〜７０℃程度が好ましい。
(Heat impregnation treatment)
When the inorganic porous body is impregnated with the solution obtained by dissolving the calcined animal bone powder in the acid solution, the impregnation can be effectively promoted by impregnating the solution with heating. The heating temperature at this time is preferably about 60 to 70 ° C.
＜浮上組成物除去工程＞
パーム廃油の加熱溶融液に酸性凝集剤を添加すると、溶融液上に浮上組成物が浮上してくるので、例えば掬い取ってこれを除去するのがよい。但し、浮上組成物の除去方法は任意である。
浮上組成物の主成分はグリセリンである。
<Floating composition removal step>
When an acidic flocculant is added to the heated melt of palm waste oil, the floating composition floats on the melt. For example, it may be removed by scooping it. However, the method for removing the floating composition is arbitrary.
The main component of the floating composition is glycerin.
＜アルカリ添加工程＞
パーム廃油の加熱溶融液に酸性凝集剤を添加した後、アルカリ溶液を添加すると、凝集物を沈殿させることができる。
<Alkali addition process>
When an acidic flocculant is added to the heated melt of palm waste oil and then an alkaline solution is added, the aggregate can be precipitated.
ここで用いるアルカリ溶液としては、例えば水酸化ナトリウム、水酸化カリウム、水酸化カルシウム、水酸化バリウム、アンモニア水、水酸化銅、水酸化アルミニウム、水酸化鉄、水酸化アンモニウム、炭酸水素ナトリウム又はこれらの水溶液などを挙げることができる。中でも、水酸化ナトリウム（苛性ソーダ）或いはこれの水溶液が最も好ましい。 Examples of the alkaline solution used here include sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide, aqueous ammonia, copper hydroxide, aluminum hydroxide, iron hydroxide, ammonium hydroxide, sodium hydrogen carbonate, or these. An aqueous solution etc. can be mentioned. Of these, sodium hydroxide (caustic soda) or an aqueous solution thereof is most preferable.
＜固液分離工程＞
パーム廃油の加熱溶融液に酸性凝集剤を添加した後、アルカリ溶液を添加すると、凝集物を沈殿させることができるため、これを固液分離することにより、固体成分と液体成分を回収することができる。
<Solid-liquid separation process>
After adding an acidic flocculant to the heated melt of palm waste oil, adding an alkaline solution can precipitate the agglomerate, so that solid and liquid components can be recovered by solid-liquid separation. it can.
固液分離方法としては、例えば沈降分離、清澄ろ過、浮上分離、ろ過分離（フィルター濾過などを含む）、膜分離などの固液分離方法のいずれかを採用すればよい。複数の固液分離方法を組み合わせて実施することもできる。 As the solid-liquid separation method, for example, any of solid-liquid separation methods such as sedimentation separation, clarification filtration, flotation separation, filtration separation (including filter filtration, etc.) and membrane separation may be employed. A plurality of solid-liquid separation methods can also be implemented in combination.
固液分離して得られる液体成分を回収することにより、粘性を低下させたパーム廃油精製油を製造することができる。
固液分離して得られる固体成分を回収することによりリン含有組成物を製造することができ、肥料や難燃剤などとして利用することができる。
By recovering the liquid component obtained by solid-liquid separation, it is possible to produce a palm waste oil refined oil with reduced viscosity.
A phosphorus-containing composition can be produced by collecting a solid component obtained by solid-liquid separation, and can be used as a fertilizer or a flame retardant.
＜語句の説明＞
本明細書において「Ｘ〜Ｙ」（Ｘ，Ｙは任意の数字）と表現する場合、特にことわらない限り「Ｘ以上Ｙ以下」の意と共に、「好ましくはＸより大きい」或いは「好ましくはＹより小さい」の意も包含する。
また、「Ｘ以上」（Ｘは任意の数字）或いは「Ｙ以下」（Ｙは任意の数字）と表現した場合、「Ｘより大きいことが好ましい」或いは「Ｙ未満であることが好ましい」旨の意図も包含する。
<Explanation of words>
In the present specification, when expressed as “X to Y” (X and Y are arbitrary numbers), unless otherwise specified, “X is preferably greater than X” or “preferably Y”. It also includes the meaning of “smaller”.
In addition, when expressed as “X or more” (X is an arbitrary number) or “Y or less” (Y is an arbitrary number), it is “preferably greater than X” or “preferably less than Y”. Includes intentions.
以下、本発明を下記実施例及び比較例に基づいてさらに詳述する。 Hereinafter, the present invention will be further described in detail based on the following examples and comparative examples.
（実施例１）
パーム廃油を１６０℃に加熱して溶融させ、この溶融液１００ｇに酸性凝集剤８ｇを添加して撹拌したところ、溶融液上にグリセリン組成物が浮上してきたため、これを柄杓で掬い取った。このようにしてグリセリン組成物を除去した後、苛性ソーダ５ｇを加えて撹拌したところ、凝集沈殿を生じたため、これをフィルターを使って固液分離し、固体分１０ｇと液体分７５ｇを回収した。
回収した液体分は、燃料として使用するのに十分な程度に粘性の低いものであった。
Example 1
Palm waste oil was heated to 160 ° C. and melted, and 8 g of acidic flocculant was added to 100 g of the melt and stirred. As a result, the glycerin composition floated on the melt, and was scraped off with a handle. After removing the glycerin composition in this way, 5 g of caustic soda was added and stirred. As a result, agglomeration and precipitation occurred, and this was subjected to solid-liquid separation using a filter to recover 10 g of solid and 75 g of liquid.
The recovered liquid was low in viscosity enough to be used as fuel.
なお、上記で用いた酸性凝集剤は、粒径（Ｄ５０）１μｍの焼成動物骨粉（株式会社エクセラ製）１００ｇをスルハミン酸溶液（ｐＨ１）１Ｌに溶解し、得られた溶解液１Ｌにアルミニウム３０を加えた後、これを７０℃に加熱させながらシリカ１００ｇに含浸させて乾燥させて得られた粉末である。 The acidic flocculant used above was prepared by dissolving 100 g of calcined animal bone meal (manufactured by Excella Co., Ltd.) having a particle size (D50) of 1 μm in 1 L of a sulfamic acid solution (pH 1), and adding aluminum 30 to 1 L of the resulting solution. After the addition, it is a powder obtained by impregnating 100 g of silica while heating to 70 ° C. and drying.
また、上記の「焼成動物骨粉」としては、牛の生骨を切断してカッティングした後、圧力釜（圧縮釜）にカセイソーダと共に投入して５気圧の圧力をかけて３００℃で６０分程度煮沸し、乾燥させた後、ハンマーを用いて荒挽き状に粉砕し、さらにパウダー機にかけて粉末状にして骨粉を得、得られた骨粉を１０００℃で焼成し、分級して３２５メッシュ（粒度分布Ｄ５０：３μｍ）とした焼成牛骨粉を用いた。該焼成牛骨粉の成分（分析値）は、ＣａＯ：５４．２８重量％、Ｐ2Ｏ3：４１．２９重量％、ＭｇＯ：０．９５重量％、Ｎａ2Ｏ：０．８９重量％、ＳｉＯ2：０．０５重量％、残：ＳｒＯ、Ｋ2Ｏ、ＢａＯ、Ｆｅ2Ｏ3、Ａｌ2Ｏ3等（Ｃａ／Ｐ（モル比）１．６６）であった。 In addition, the above-mentioned “baked animal bone meal” cuts and cuts raw bones of cattle, puts them together with caustic soda into a pressure kettle (compression kettle), applies a pressure of 5 atm and boils at 300 ° C. for about 60 minutes And dried, and then crushed into a rough shape using a hammer, and further powdered by a powder machine to obtain bone powder. : 3 μm) was used. The components (analytical values) of the calf bone meal were as follows: CaO: 54.28% by weight, P 2 O 3 : 41.29% by weight, MgO: 0.95% by weight, Na 2 O: 0.89% by weight, SiO 2 2 : 0.05% by weight, remaining: SrO, K 2 O, BaO, Fe 2 O 3 , Al 2 O 3 etc. (Ca / P (molar ratio) 1.66).
（実施例２）
上記の溶融液１００ｇに酸性凝集剤を５ｇを添加した以外は、実施例１と同様に処理を行った。その結果、固体分８ｇと液体分７７ｇを回収した。回収した液体分は、燃料として使用するのに十分な程度に粘性の低いものであった。
(Example 2)
The treatment was performed in the same manner as in Example 1 except that 5 g of the acidic flocculant was added to 100 g of the melt. As a result, 8 g of solid and 77 g of liquid were recovered. The recovered liquid was low in viscosity enough to be used as fuel.
（実施例３）
上記の溶融液１００ｇに酸性凝集剤を９ｇを添加した以外は、実施例１と同様に処理を行った。その結果、固体分１２ｇと液体分７３ｇを回収した。回収した液体分は、燃料として使用するのに十分な程度に粘性の低いものであった。
(Example 3)
The treatment was performed in the same manner as in Example 1 except that 9 g of the acidic flocculant was added to 100 g of the melt. As a result, 12 g of solid and 73 g of liquid were recovered. The recovered liquid was low in viscosity enough to be used as fuel.
（比較例１）
アルミニウムを添加しない酸性凝集剤を使用した以外は、実施例１と同様に処理を行った。その結果、凝集沈殿が生じず、粘性を低下させることができなかった。
(Comparative Example 1)
The treatment was performed in the same manner as in Example 1 except that an acidic flocculant without adding aluminum was used. As a result, aggregation precipitation did not occur and viscosity could not be reduced.
Claims (6)
酸性凝集剤として、焼成動物骨粉を酸溶液に溶解し、得られた溶解液を、アルミニウムと共に、無機多孔質体に含浸させてなる酸性凝集剤を用いることを特徴とするパーム廃油の処理方法。 The palm waste oil as squeezed cocoon produced when the palm oil is squeezed from the insulator is heated and melted, an acidic flocculant is added to the melt, and the floating composition floating on the melt is removed, and then the alkaline solution Is a method for treating palm waste oil, characterized in that coagulation precipitation is caused to occur and solid-liquid separation is performed,
As the acidic coagulant, calcined animal bone powder was dissolved in an acid solution, the resulting solution, together with aluminum, the processing method of the palm waste oil is impregnated into an inorganic porous material, characterized by using an acidic coagulant comprising.
The method for producing a phosphorus-containing composition according to any one of claims 1 to 4 , wherein the phosphorus-containing composition is recovered as a solid component obtained by solid-liquid separation.
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