JP3609119B2 - Fuel additive and fuel composition containing the same - Google Patents
Fuel additive and fuel composition containing the same Download PDFInfo
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Description
【０００１】
【産業上の利用分野】
本発明は燃料、特に重油、アスファルト、アスファルト／水エマルション燃料等に対し、安価で、分散性が良く、腐食性が少なく、かつ媒塵の低減効果を有する燃料添加剤（助燃剤）及びそれを含む燃料組成物に関する。
【０００２】
【従来技術】
重油、アスファルト等の重質燃料は残炭分が多く、バーナー、ボイラー等の外燃機関や、舶用ディーゼル機関等の内燃機関等で燃焼させた場合、未燃焼炭化水素（媒塵）が多く発生しやすいという傾向がある。燃焼機器を改善することなく簡便に媒塵を抑制するため方法として、過剰空気量を増やして燃焼させるなどの方法が取られるがこの方法では燃焼効率が低下し、有害な窒素酸化物も増加してしまう。そこで、空気量を増やすことなく媒塵を低減する方法として燃料に添加剤を添加するという方法が採られている。
【０００３】
この種の試みとして従来より、Ｂａ、Ｃａ、Ｆｅ、Ｍｎ、Ｃｅ等の様々な元素を含む添加剤について研究がなされている。
無機微粒子の形態を有する添加剤としてはＦｅ、カーボンブラック、Ｃａなど微粉状粒子に鉄系材料を加えた添加剤（特開平５−９４７９）等があるが、無機微粒子の固形物のみでは粒径を小さくしても表面積に限度があるため添加元素の効力を発揮させるには限度があり、また、使用中に無機微粒子が沈降する恐れもある。
また、油溶性化合物を含む添加剤としては、例えばＣｅを含む油溶性石鹸（特開昭５３−１２９０７）からなる添加剤等があるが、添加量を多くしないと十分な効果が得られず、高価である。
さらに還元雰囲気での使用も可能なものとして様々な金属を含む化合物（特開平０３−２４４６９２）からなる添加剤もあるが、このような構造式が限られている化合物はいずれも合成するのにコストがかかる。
【０００４】
これらの問題点を解決するために、少量で媒塵低減効果を上げる添加剤としてＣｅ、Ｎｄ、Ｌａ等を含む添加剤（特開平１−２５６５９３）も挙げられる。しかし希土類元素は助燃効果は大きいが、Ｆｅなどの遷移金属、アルカリ金属及びアルカリ土類金属に比べると高価であるという欠点がある。
また、Ｎａ、Ｋのようなアルカリ金属系の添加剤は助燃効果が高いが、重油中に含まれるバナジウムと低融点化合物を生成し、排気系等で高温腐食を起こすことが知られている。またアルカリ土類金属のうち比較的効果が大きく、安価なＣａは堆積物の付着力が強く、剥がれ難いという欠点を有する。
【０００５】
【発明が解決しようとする課題】
本発明は前記問題点を解決し、安価で、分散性が良く、装置の腐食が少なく、さらに媒塵の低減効果を有する燃料添加剤及びそれを含む燃料組成物を提供することを目的とする。
【０００６】
【課題を解決するための手段】
本発明者らは上記目的を解決するために鋭意研究した結果、ＣｅとＦｅを特定の形態で組合せた燃料添加剤を燃料に配合することにより、上記目的を達成できることを見い出し本発明を完成した。
【０００７】
すなわち、本発明はＣｅを含む無機物の微細粒子とＦｅ含む油溶性有機酸塩又はＦｅを含む無機物の微細粒子とＣｅを含む油溶性有機酸塩を含むことを特徴とする燃料添加剤に関する。
【０００８】
また、本発明は、燃料に、Ｃｅを含む無機物の微細粒子とＦｅを含む油溶性有機酸塩又はＦｅを含む無機物の微細粒子とＣｅを含む油溶性有機酸塩を含む燃料添加剤が配合されていることを特徴とする燃料組成物に関する。
以下本発明を具体的に説明する。
【０００９】
本発明で対象とする燃料は、主として重油、アスファルト、アスファルト／水エマルション燃料等の重質燃料であるが、特にこれらに限定されるものではない。
【００１０】
本発明で使用するＣｅを含む無機物とは、非油溶性のＣｅを含む無機物であり、具体的には、例えばＣｅ金属、ＣｅＯ２、Ｃｅ２Ｏ３、Ｃｅ（ＯＨ）３、ＣｅＣｌ３、Ｃｅ２（ＳＯ４）３、Ｃｅ２（ＣＯ３）３、及びこれらを含む鉱物等が挙げられる。
【００１１】
本発明で使用するＦｅを含む無機物とは、非油溶性のＦｅを含む無機物であり、具体的には、例えばＦｅ金属、ＦｅＯ、Ｆｅ２Ｏ３、ＦｅＯ（ＯＨ）、Ｆｅ（ＯＨ）２、ＦｅＣＯ３、ＦｅＳＯ４、ＦｅＣｌ２、ＦｅＣｌ３、Ｆｅ（ＮＯ３）２等が挙げられる。
【００１２】
Ｃｅ及びＦｅを含む無機物の微細粒子の粒径はできるだけ微細な方が良い。例えば、１μｍ以下が好ましく、さらに０．１μｍ以下が好ましい。しかしながら、このように微粉砕するのにコストがかかるようであれば燃料油の粘度にあわせて燃料中で安定に分散できる範囲の大きさでもよい。
【００１３】
本発明で使用するＣｅを含む油溶性有機酸塩とは、Ｃｅとナフテン酸、オクチル酸、スルホン酸、ステアリン酸、パルミチン酸等の有機酸とを反応させたものである。具体的には、例えばＣｅナフテン酸、Ｃｅオクチル酸、Ｃｅスルホン酸、Ｃｅステアリン酸、Ｃｅパルミチン酸等が挙げられる。
【００１４】
本発明で使用するＦｅを含む油溶性有機酸塩とはＦｅとナフテン酸、オクチル酸、スルホン酸、ステアリン酸、パルミチン酸等の有機酸とを反応させたものである。具体的には、例えばＦｅナフテン酸、Ｆｅオクチル酸、Ｆｅスルホン酸、Ｆｅステアリン酸、Ｆｅステアリン酸、Ｆｅパルミチン酸等が挙げられる。
【００１５】
本発明の燃料添加剤において、ＦｅとＣｅ両元素合計量に対するＣｅ含有量は１０〜９０重量％であり、好ましくは３０〜８０重量％であり、更に好ましくは４０〜７０重量％である。
Ｃｅ含有量が１０重量％未満であるとＣｅとＦｅの両元素が接する効率が悪くなり、助燃効果がＦｅのみの場合とほとんど変わらない。
Ｃｅ含有量が９０重量％を超えるとＣｅとＦｅの両元素が接する効率が悪くなり、助燃効果がＣｅのみの場合とほとんど変わらない。
【００１６】
本発明の燃料添加剤はＣｅを含む無機物の微細粒子等Ｆｅを含む油溶性有機酸塩、又はＦｅを含む無機物の微細粒子とＣｅを含む油溶性有機酸塩を溶剤に溶解したものである。本発明で使用される溶剤は特に限定されないが、例えば灯油、軽油、重油等の石油系溶剤、あるいはベンゼン、トルエン、キシレン等の芳香族系溶剤等が挙げられる。
【００１７】
本発明の燃料組成物は上記本発明の燃料添加剤を燃料に配合したものであるが、燃料に対する燃料添加剤の含有量は金属量で１重量ｐｐｍ〜１０００重量ｐｐｍであり、さらに好ましくは５重量ｐｐｍ〜１００重量ｐｐｍである。
１重量ｐｐｍ未満であると量が少なすぎて媒塵低減効果も小さい。１０００重量ｐｐｍを超えると逆に添加量の割には媒塵低減効果が上がらない。
【００１８】
【作用】
本発明の燃料添加剤で媒塵低減効果が大きい理由としては、Ｃｅ酸化物には酸素を出し入れする酸素ポンプ機能があり、その機能により残炭分の完全燃焼が促進されていると考えられるが、Ｆｅ酸化物が介在することでその反応速度がさらに促進されている可能性がある。さらにＦｅの添加で生成カーボンの結晶化が低くおさえられるので燃焼しやすい残留炭素が形成される。これらの効果によりＣｅ、Ｆｅを合わせることで燃焼促進効果が増大するものと思われる。
また、Ｃｅは重油中のバナジウムと化合し高融点化合物を生成するので、燃焼生成物による高温腐食を抑制するという利点も合わせて有している。
【００１９】
また、ＣｅとＦｅとを組合わせれば大きな相乗効果が期待できるが両方とも微細粒子では分散性が悪く、沈降の恐れがある。またＣｅとＦｅが近傍に存在する確立も低く、大きな相乗効果が期待できない。一方本発明では微粒子と油溶性化合物では油溶性化合物が界面活性剤のようなはたらきで微粒子表面に吸着していると思われるので、ＣｅとＦｅが近傍に存在しつつしかも分散性が良く、微粒子添加剤の欠点である沈降がほとんどない。
【００２０】
【実施例】
本発明を実施例及び比較例により、さらに具体的に以下に説明する。
燃焼速度の測定、算出方法、媒塵量の測定方法及び燃焼炉の条件は以下の通りである。
〔燃焼速度の測定及び算出方法〕
燃料添加剤を添加した燃料油１０ｍｇを示差熱天秤（理学電機製ＴＧ８１１０）を用い昇温速度１００℃／分で５００℃まで加熱し燃焼させ５００℃で保持した時の生成残炭の質量減少曲線から燃焼速度を算出した。空気流量は１００ｍｌ／分とした。（本測定装置では１００ｍｌ／分以下にすると空気の拡散律速となり測定値が変動しやすいため）算出方法は次式を利用した（注（１）、（２））。
燃焼速度定数ｋｓは次式で求められる。
【００２１】
【数１】
σ：表面積、τ：測定点間の時間間隔
【００２２】
実際の測定では、Ｔ＝５００℃（一定）、ｍ１／ｍ２＝２．６（一定）にし、またσ＝一定とみなせば、上式は
【００２３】
【数２】
注（１）柴山ら、日本機械学会論文集、３４（２６０）、７６９（１９６８）
（２）候ら、日本機械学会論文集、５４（５０７）３３０１（１９８８）
【００２４】
〔媒塵量の測定方法〕
媒塵量は、排ガス中のダスト濃度の測定方法（ＪＩＳ Ｚ ８８０８）により測定した。
【００２５】
〔燃焼炉の条件〕
燃焼炉 ：ボイラー
油量 ：１００Ｌ／ｈ
排ガスＯ２ ：１％
蒸気量 ：３０ｋｇ／ｃｍ３
【００２６】
実施例１〜４
ＣｅＯ２微細粒子をトルエン溶剤にコロイド状に分散させたものにＦｅナフテン酸塩を混合し、表１の金属組成比で燃料添加剤を調製した。得られた燃料添加剤をＣ重油（比重０．９４２２、残炭分５．１７ｗｔ％、硫黄分１．９４ｗｔ％）に金属濃度が０．０３ｗｔ％となるように添加して得られた燃料組成物について、燃焼速度を測定した。その結果を表１に示した。
【００２７】
実施例５〜６
ＦｅＯ２微細粒子をトルエン溶剤にコロイド状に分散させたものに、Ｃｅナフテン酸塩を混合し、表１の金属組成比で燃料添加剤を調製した以外は実施例１と同様に燃料組成物を調製して燃焼速度を測定した。その結果を表１に示した
【００２８】
比較例１
ＣｅＯ２微細粒子をトルエン溶剤にコロイド状に分散させた燃料添加剤を調製した以外は実施例１と同様に燃料組成物を調製して燃焼速度を測定した。その結果を表１に示した。
【００２９】
比較例２
ＦｅＯ２微細粒子とトルエン溶剤にコロイド状に分散させた燃料添加剤を調製した以外は実施例１と同様に燃料組成物を調製して燃焼速度を測定した。その結果を表１に示した。
【００３０】
比較例３
燃料添加剤を用いないで、実施例１の上記Ｃ重油について燃焼速度を測定し、その結果を表１に示した。
【００３１】
実施例７
実施例３で得られた燃料添加剤を実施例１の上記Ｃ重油について金属量が３０ｐｐｍとなるように添加し燃料組成物を調製した。燃焼炉で燃焼実験を行い燃焼炉での媒塵量を測定した。その結果を表２に示した。
【００３２】
実施例８
実施例６で得られた燃料添加剤を用いて、実施例７と同様に燃料組成物を調製し、同様に媒塵量を測定した。その結果を表２に示した。
【００３３】
比較例４
比較例１で得られた燃料添加剤を用いて、実施例７と同様に燃料組成物を調製し、同様に媒塵量を測定した。その結果を表２に示した。
【００３４】
比較例５
燃料添加剤を用いないで、実施例１の上記Ｃ重油について実施例７と同様に媒塵量を測定した。その結果を表２に示した。
【００３５】
【表１】
【表２】
実施例１〜８及び比較例１〜５から次のことが言える。
▲１▼本発明の燃料添加剤を用いる実施例１〜６では燃焼速度が大きい。
▲２▼比較例１のＣｅＯ２微細粒子のみを用いた燃料添加剤ケース、比較例２のＦｅＯ２微細粒子のみを用いた燃料添加剤ケース及び比較例３の燃料添加剤を用いないケースは、いずれも燃焼速度が大きい。
▲３▼本発明の燃料添加剤を用いる実施例５〜６では媒塵の抑制効果が顕著で、また、使用に際して燃料添加剤の沈降は見られなかった。
▲４▼比較例４のＣｅＯ２微細粒子のみを用いた燃料添加剤ケース及び比較例５の燃料添加剤を用いないケースは媒塵量が多い。
【００３８】
【発明の効果】
本発明の燃料添加剤は、比較的安価で、燃料への分散性が良く、装置の腐食が少なく、さらに、燃焼促進効果が大きいため煤煙抑制効果が高いという利点を有する。[0001]
[Industrial application fields]
The present invention is a fuel additive (supporting agent) that is inexpensive, has good dispersibility, has little corrosiveness, and has a dust reducing effect on fuels, particularly heavy oil, asphalt, asphalt / water emulsion fuel, and the like. It is related with the fuel composition containing.
[0002]
[Prior art]
Heavy fuels such as heavy oil and asphalt have a large amount of residual coal, and when burned in an external combustion engine such as a burner or boiler, or an internal combustion engine such as a marine diesel engine, a large amount of unburned hydrocarbon (dust) is generated. There is a tendency to be easy to do. As a method to easily suppress dust without improving combustion equipment, a method such as increasing the amount of excess air and burning is used, but this method decreases the combustion efficiency and increases harmful nitrogen oxides. End up. Therefore, a method of adding an additive to the fuel has been adopted as a method of reducing dust without increasing the amount of air.
[0003]
As an attempt of this kind, studies have been made on additives containing various elements such as Ba, Ca, Fe, Mn, and Ce.
Examples of the additive having the form of inorganic fine particles include an additive obtained by adding an iron-based material to fine powder particles such as Fe, carbon black, and Ca (JP-A-5-9479). Even if it is made small, the surface area is limited, so that there is a limit to exert the effect of the additive element, and the inorganic fine particles may settle during use.
Moreover, as an additive containing an oil-soluble compound, for example, there is an additive made of an oil-soluble soap containing Ce (Japanese Patent Laid-Open No. 53-12907), but a sufficient effect cannot be obtained unless the addition amount is increased. Expensive.
In addition, there are additives made of compounds containing various metals (Japanese Patent Laid-Open No. 03-244692) that can be used in a reducing atmosphere. However, such compounds with limited structural formulas can be synthesized. There will be a cost.
[0004]
In order to solve these problems, an additive containing Ce, Nd, La and the like (Japanese Patent Laid-Open No. 1-256593) is also mentioned as an additive that increases the dust reduction effect in a small amount. However, although rare earth elements have a large auxiliary effect, they are disadvantageous in that they are more expensive than transition metals such as Fe, alkali metals, and alkaline earth metals.
In addition, alkali metal additives such as Na and K have a high auxiliary combustion effect, but it is known that vanadium and a low-melting-point compound contained in heavy oil are generated and high-temperature corrosion is caused in an exhaust system or the like. Further, among alkaline earth metals, Ca is relatively effective, and inexpensive Ca has the disadvantage that the deposit has strong adhesion and is difficult to peel off.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to solve the above problems, and to provide a fuel additive having a low cost, good dispersibility, little corrosion of the apparatus, and further having a dust reducing effect, and a fuel composition containing the same. .
[0006]
[Means for Solving the Problems]
As a result of diligent research to solve the above-mentioned object, the present inventors have found that the above-mentioned object can be achieved by adding a fuel additive in which Ce and Fe are combined in a specific form to the fuel, thereby completing the present invention. .
[0007]
That is, this invention relates to the fuel additive characterized by including the inorganic fine particle containing Ce, the oil-soluble organic acid salt containing Fe, or the inorganic fine particle containing Fe, and the oil-soluble organic acid salt containing Ce.
[0008]
Further, in the present invention, a fuel additive containing inorganic fine particles containing Ce and oil-soluble organic acid salt containing Fe or inorganic fine particles containing Fe and oil-soluble organic acid salt containing Ce is blended in the fuel. It is related with the fuel composition characterized by the above-mentioned.
The present invention will be specifically described below.
[0009]
The fuels targeted in the present invention are mainly heavy fuels such as heavy oil, asphalt, and asphalt / water emulsion fuel, but are not particularly limited thereto.
[0010]
The inorganic substance containing Ce used in the present invention is an inorganic substance containing non-oil soluble Ce. Specifically, for example, Ce metal, CeO 2 , Ce 2 O 3 , Ce (OH) 3 , CeCl 3 , Ce 2 (SO 4 ) 3 , Ce 2 (CO 3 ) 3 and minerals containing these.
[0011]
The inorganic substance containing Fe used in the present invention is an inorganic substance containing non-oil-soluble Fe. Specifically, for example, Fe metal, FeO, Fe 2 O 3 , FeO (OH), Fe (OH) 2 , FeCO 3, FeSO 4, FeCl 2 , FeCl 3, Fe (NO 3) 2 and the like.
[0012]
The inorganic fine particles containing Ce and Fe should be as fine as possible. For example, it is preferably 1 μm or less, more preferably 0.1 μm or less. However, if the cost for fine pulverization is high, the size may be in a range that can be stably dispersed in the fuel according to the viscosity of the fuel oil.
[0013]
The oil-soluble organic acid salt containing Ce used in the present invention is obtained by reacting Ce with an organic acid such as naphthenic acid, octylic acid, sulfonic acid, stearic acid, and palmitic acid. Specific examples include Ce naphthenic acid, Ce octylic acid, Ce sulfonic acid, Ce stearic acid, Ce palmitic acid and the like.
[0014]
The oil-soluble organic acid salt containing Fe used in the present invention is obtained by reacting Fe with an organic acid such as naphthenic acid, octylic acid, sulfonic acid, stearic acid, and palmitic acid. Specific examples include Fe naphthenic acid, Fe octylic acid, Fe sulfonic acid, Fe stearic acid, Fe stearic acid, Fe palmitic acid and the like.
[0015]
In the fuel additive of the present invention, the Ce content relative to the total amount of both Fe and Ce elements is 10 to 90% by weight, preferably 30 to 80% by weight, and more preferably 40 to 70% by weight.
When the Ce content is less than 10% by weight, the efficiency with which both elements of Ce and Fe come into contact with each other is deteriorated, and the auxiliary combustion effect is almost the same as that of Fe alone.
When the Ce content exceeds 90% by weight, the efficiency with which both elements of Ce and Fe come into contact with each other is deteriorated, and the auxiliary combustion effect is almost the same as that of Ce alone.
[0016]
The fuel additive of the present invention is an oil-soluble organic acid salt containing Fe, such as inorganic fine particles containing Ce, or an oil-soluble organic acid salt containing Ce containing inorganic fine particles containing Fe and Ce. The solvent used in the present invention is not particularly limited, and examples thereof include petroleum solvents such as kerosene, light oil, and heavy oil, and aromatic solvents such as benzene, toluene, and xylene.
[0017]
The fuel composition of the present invention is obtained by blending the fuel additive of the present invention with a fuel. The content of the fuel additive with respect to the fuel is 1 ppm by weight to 1000 ppm by weight, more preferably 5 ppm. Weight ppm to 100 ppm by weight.
If it is less than 1 ppm by weight, the amount is too small and the dust reduction effect is also small. On the other hand, if it exceeds 1000 ppm by weight, the dust reduction effect does not increase for the added amount.
[0018]
[Action]
The reason why the fuel additive of the present invention has a large dust reduction effect is that Ce oxide has an oxygen pump function for taking in and out oxygen, and it is thought that complete combustion is promoted by the function. The reaction rate may be further promoted by the presence of Fe oxide. Further, the addition of Fe suppresses the crystallization of the generated carbon, so that residual carbon that is easy to burn is formed. Combining Ce and Fe by these effects seems to increase the combustion promotion effect.
Further, Ce combines with vanadium in heavy oil to form a high melting point compound, and therefore has an advantage of suppressing high temperature corrosion caused by combustion products.
[0019]
Further, when Ce and Fe are combined, a great synergistic effect can be expected. However, both fine particles have poor dispersibility and may cause sedimentation. In addition, the probability that Ce and Fe exist in the vicinity is low, and a large synergistic effect cannot be expected. On the other hand, in the present invention, in the case of fine particles and oil-soluble compounds, it is considered that the oil-soluble compound is adsorbed on the surface of the fine particles by acting like a surfactant, so that Ce and Fe are present in the vicinity and dispersibility is good. There is almost no sedimentation, which is a drawback of the additive.
[0020]
【Example】
The present invention will be described more specifically below with reference to examples and comparative examples.
The combustion rate measurement, calculation method, dust amount measurement method, and combustion furnace conditions are as follows.
[Measurement and calculation method of burning rate]
10 mg of fuel oil with added fuel additive is heated to 500 ° C at a heating rate of 100 ° C / min using a differential thermal balance (TG8110 manufactured by Rigaku Corporation), burned and held at 500 ° C. From this, the burning rate was calculated. The air flow rate was 100 ml / min. (In this measuring device, if it is less than 100 ml / min, the diffusion value of air becomes limited and the measured value tends to fluctuate.) The calculation method uses the following formula (Notes (1) and (2)).
The combustion rate constant ks is obtained by the following equation.
[0021]
[Expression 1]
In actual measurement, if T = 500 ° C. (constant), m 1 / m 2 = 2.6 (constant), and σ = constant, the above equation is
[Expression 2]
Note (1) Shibayama et al., Transactions of the Japan Society of Mechanical Engineers, 34 (260), 769 (1968)
(2) Koki et al., Transactions of the Japan Society of Mechanical Engineers, 54 (507) 3301 (1988)
[0024]
[Measurement method of dust amount]
The amount of dust was measured by a method for measuring dust concentration in exhaust gas (JIS Z 8808).
[0025]
[Combustion furnace conditions]
Combustion furnace: Boiler oil amount: 100 L / h
Exhaust gas O 2 : 1%
Steam volume: 30 kg / cm 3
[0026]
Examples 1-4
Fe naphthenate was mixed with a colloidal dispersion of CeO 2 fine particles in a toluene solvent to prepare a fuel additive at a metal composition ratio shown in Table 1. Fuel composition obtained by adding the obtained fuel additive to C heavy oil (specific gravity 0.9422, residual carbon content 5.17 wt%, sulfur content 1.94 wt%) so that the metal concentration becomes 0.03 wt% The burning rate was measured for the product. The results are shown in Table 1.
[0027]
Examples 5-6
A fuel composition was prepared in the same manner as in Example 1 except that Ce naphthenate was mixed in a colloidal dispersion of FeO 2 fine particles in a toluene solvent and a fuel additive was prepared at a metal composition ratio shown in Table 1. Prepared and measured burning rate. The results are shown in Table 1. [0028]
Comparative Example 1
A fuel composition was prepared in the same manner as in Example 1 except that a fuel additive in which CeO 2 fine particles were dispersed in a colloidal form in a toluene solvent was prepared, and the combustion rate was measured. The results are shown in Table 1.
[0029]
Comparative Example 2
A fuel composition was prepared in the same manner as in Example 1 except that a fuel additive dispersed in a colloidal form in FeO 2 fine particles and a toluene solvent was prepared, and the combustion rate was measured. The results are shown in Table 1.
[0030]
Comparative Example 3
The combustion rate was measured for the C heavy oil of Example 1 without using a fuel additive, and the results are shown in Table 1.
[0031]
Example 7
The fuel additive obtained in Example 3 was added to the C heavy oil of Example 1 so that the amount of metal was 30 ppm, to prepare a fuel composition. A combustion experiment was conducted in a combustion furnace, and the amount of dust in the combustion furnace was measured. The results are shown in Table 2.
[0032]
Example 8
Using the fuel additive obtained in Example 6, a fuel composition was prepared in the same manner as in Example 7, and the amount of dust was measured in the same manner. The results are shown in Table 2.
[0033]
Comparative Example 4
A fuel composition was prepared in the same manner as in Example 7 using the fuel additive obtained in Comparative Example 1, and the amount of dust was measured in the same manner. The results are shown in Table 2.
[0034]
Comparative Example 5
The amount of dust was measured for the C heavy oil of Example 1 in the same manner as in Example 7 without using a fuel additive. The results are shown in Table 2.
[0035]
[Table 1]
[Table 2]
The following can be said from Examples 1 to 8 and Comparative Examples 1 to 5.
(1) In Examples 1 to 6 using the fuel additive of the present invention, the combustion rate is high.
( 2 ) The fuel additive case using only CeO 2 fine particles of Comparative Example 1, the fuel additive case using only FeO 2 fine particles of Comparative Example 2, and the case of not using the fuel additive of Comparative Example 3 Both have a high burning rate.
{Circle around (3)} In Examples 5 to 6 using the fuel additive of the present invention, the effect of suppressing the dust was remarkable, and no settling of the fuel additive was observed during use.
(4) The fuel additive case using only the CeO 2 fine particles of Comparative Example 4 and the case of not using the fuel additive of Comparative Example 5 have a large amount of dust.
[0038]
【The invention's effect】
The fuel additive of the present invention is advantageous in that it is relatively inexpensive, has good dispersibility in fuel, has little corrosion on the apparatus, and has a high combustion promoting effect, so that it has a high smoke suppression effect.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10908394A JP3609119B2 (en) | 1994-04-25 | 1994-04-25 | Fuel additive and fuel composition containing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10908394A JP3609119B2 (en) | 1994-04-25 | 1994-04-25 | Fuel additive and fuel composition containing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07292373A JPH07292373A (en) | 1995-11-07 |
| JP3609119B2 true JP3609119B2 (en) | 2005-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10908394A Expired - Fee Related JP3609119B2 (en) | 1994-04-25 | 1994-04-25 | Fuel additive and fuel composition containing the same |
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| JP (1) | JP3609119B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2655245B2 (en) * | 1994-10-25 | 1997-09-17 | 洋一 西村 | Purification substance such as fuel, method for purifying fuel using the same, and fuel combustion apparatus using the same |
| JP2001354979A (en) * | 2000-06-14 | 2001-12-25 | Ibe:Kk | Fuel modifier |
| JP5051564B2 (en) * | 2003-10-20 | 2012-10-17 | 有限会社ユニレック | Fuel oil fuel efficiency improvement method |
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| Publication number | Publication date |
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| JPH07292373A (en) | 1995-11-07 |
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