JP4413583B2 - Fuel oil composition - Google Patents
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- JP4413583B2 JP4413583B2 JP2003379783A JP2003379783A JP4413583B2 JP 4413583 B2 JP4413583 B2 JP 4413583B2 JP 2003379783 A JP2003379783 A JP 2003379783A JP 2003379783 A JP2003379783 A JP 2003379783A JP 4413583 B2 JP4413583 B2 JP 4413583B2
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- 239000000295 fuel oil Substances 0.000 title claims description 35
- 239000000203 mixture Substances 0.000 title claims description 32
- 238000004821 distillation Methods 0.000 claims description 97
- 239000012188 paraffin wax Substances 0.000 claims description 33
- 238000002485 combustion reaction Methods 0.000 description 30
- 125000004432 carbon atom Chemical group C* 0.000 description 13
- 239000003921 oil Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 11
- 239000003350 kerosene Substances 0.000 description 11
- 239000002904 solvent Substances 0.000 description 10
- 239000004071 soot Substances 0.000 description 10
- 238000009835 boiling Methods 0.000 description 9
- 239000003208 petroleum Substances 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 239000000446 fuel Substances 0.000 description 7
- 235000019645 odor Nutrition 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 239000000779 smoke Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 235000019621 digestibility Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Description
本発明は、主に家庭用石油ストーブに使用するための燃料油組成物に関し、特には、燃料臭気が少なく、燃焼性が良好なため煤等の発生が少ない燃料油組成物に関する。 TECHNICAL FIELD The present invention relates to a fuel oil composition for use mainly in domestic petroleum stoves, and more particularly to a fuel oil composition that generates less soot and the like because of less fuel odor and good combustibility.
現在石油ストーブに使用されている灯油の種類と規格は、日本工業規格（ＪＩＳ Ｋ ２２０３）に示されており、その中でも１号灯油は、家庭用の暖房機器等に広く用いられている。ＪＩＳ１号灯油は、一般に原油を常圧蒸留して得られる直留灯油分を水素化脱硫して製造されるが、芳香族分や微量に含まれる硫黄分に由来する臭気等がある。また芳香族分を多く含む灯油を石油ストーブ等に使用した場合、主に着・消火時において煤が発生する場合がある。近年、環境問題への関心の高まりから、灯油に対しても、より環境負荷の少ないものが望まれているが、硫黄分を含まないパラフィン系の燃料を使用すれば、臭気は少なくできることが知られている（特許文献１）。また、パラフィンは燃焼性が良好であることから着・消火時における煤発生はかなり抑えられることが知られている。 The types and standards of kerosene currently used in oil stoves are shown in Japanese Industrial Standards (JIS K 2203). Among them, No. 1 kerosene is widely used for household heating equipment and the like. JIS No. 1 kerosene is generally produced by hydrodesulfurizing straight-run kerosene obtained by atmospheric distillation of crude oil, and has odors derived from aromatics and sulfur contained in trace amounts. In addition, when kerosene containing a large amount of aromatics is used in an oil stove or the like, soot may be generated mainly during ignition and extinguishing. In recent years, due to the growing interest in environmental issues, kerosene is also expected to have a lower environmental impact, but it is known that odor can be reduced by using paraffinic fuel that does not contain sulfur. (Patent Document 1). In addition, since paraffin has good flammability, it is known that generation of soot at the time of wearing and extinguishing can be suppressed considerably.
しかしながら、上記のように、パラフィン系の燃料油を使用すれば臭気は少なく、燃焼性が良好であることから煤発生等は低減できるが、燃焼性が良すぎることにより、従来灯油を使用することを基準として設計されている現行の燃焼機器に対しては安定した燃焼が保てないことが懸念される。
本発明の目的は、燃料臭気が少なく、燃焼時における煤発生が少なく、さらに現行タイプの家庭用燃焼機器（主に石油ストーブ）に使用しても安定した燃焼状態を維持できる燃料油組成物を提供することにある。 An object of the present invention is to provide a fuel oil composition that has a low fuel odor, generates less soot during combustion, and can maintain a stable combustion state even when used in current type household combustion equipment (mainly oil stoves). It is to provide.
本発明者は、上記目的を達成するために鋭意検討を行った結果、蒸留性状を適正化したｎ−パラフィン溶剤を燃料油として利用することで、燃焼性が良好で煤の発生等が少なく、かつ石油ストーブに使用した際に安定した燃焼を保ち、かつ消火時における鎮火時間も短くなるという知見を得て本発明を完成するに至った。
即ち、本発明によれば、純度９８．０容量％以上のｎ−パラフィンから成り、蒸留性状が初留点１４０〜１６５℃、５０％留出温度１８５〜２２０℃、７０％留出温度２００〜２４０℃、９０％留出温度２２５〜２６５℃、９５％留出温度２４５〜２６５℃であることを特徴とする燃料油組成物が提供され、本発明の上記目的が達成される。
As a result of intensive studies to achieve the above-mentioned object, the present inventor uses n-paraffin solvent with an optimized distillation property as fuel oil, which has good combustibility and less generation of soot, In addition, the present invention has been completed by obtaining the knowledge that when used in an oil stove, stable combustion is maintained and the extinguishing time during fire extinguishing is shortened.
That is, according to the present invention, it consists of n-paraffin having a purity of 98.0% by volume or more, and the distillation properties are an initial distillation point of 140 to 165 ° C, a 50% distillation temperature of 185 to 220 ° C, a 70% distillation temperature of 200 to 200%. A fuel oil composition characterized by 240 ° C., 90% distillation temperature 225 to 265 ° C., and 95% distillation temperature 245 to 265 ° C. is provided, and the above object of the present invention is achieved.
本発明による燃料油組成物は、煙点が非常に高いため煤の発生等をかなり抑えることができる。さらに石油ストーブに使用しても安定燃焼が可能で消火性も良好であり、本発明による燃料油組成物は実用上非常に有用である。 Since the fuel oil composition according to the present invention has a very high smoke point, generation of soot and the like can be considerably suppressed. Further, even when used in an oil stove, stable combustion is possible and fire extinguishing properties are good, and the fuel oil composition according to the present invention is very useful in practice.
以下に本発明の詳細を記載する。
本発明の燃料油組成物の蒸留性状は、初留点１３５〜１７０℃、５０％留出温度１８５〜２２０℃、７０％留出温度２００〜２４０℃、９０％留出温度２２５〜２６５℃、９５％留出温度２４０〜２７０℃である。特に、初留点１４０〜１６５℃、５０％留出温度１９０〜２１５℃、７０％留出温度が２０５〜２３５℃、９０％留出温度が２３０〜２６０℃、９５％留出温度２４５〜２６５℃であることが好ましい。
初留点が１７０℃より高い場合、着火し難くなる可能性があり好ましくない。初留点が１３５℃より低い場合、引火点が低くなりＪＩＳ Ｋ２２０３で定められる規格値である引火点４０℃を下回る可能性があり好ましくない。また５０％留出温度が２２０℃、７０％留出温度が２４０℃、９０％留出温度が２６５℃、９５％留出温度が２７０℃より高い場合、着火し難く定常燃焼に至るまでに時間がかかる可能性があり、好ましくない。また５０％留出温度が１８５℃、７０％留出温度が２００℃、９０％留出温度が２２５℃、９５％留出温度が２４０℃より低い場合、芯式・放射形石油ストーブ使用時において、炎を燃焼筒の上部から出さずに、燃焼筒を赤熱した状態に保つという安定した燃焼状態が保てず、また消火の際に鎮火し難くなる場合があり、好ましくない。
Details of the present invention will be described below.
The distillation properties of the fuel oil composition of the present invention are as follows: initial boiling point 135-170 ° C, 50% distillation temperature 185-220 ° C, 70% distillation temperature 200-240 ° C, 90% distillation temperature 225-265 ° C, 95% distillation temperature is 240-270 ° C. In particular, the initial distillation point is 140 to 165 ° C, the 50% distillation temperature is 190 to 215 ° C, the 70% distillation temperature is 205 to 235 ° C, the 90% distillation temperature is 230 to 260 ° C, and the 95% distillation temperature is 245 to 265. It is preferable that it is ° C.
When the initial boiling point is higher than 170 ° C., it is difficult to ignite, which is not preferable. When the initial boiling point is lower than 135 ° C., the flash point becomes lower, which may be lower than the flash point of 40 ° C., which is a standard value defined by JIS K2203. Also, when the 50% distillation temperature is 220 ° C, the 70% distillation temperature is 240 ° C, the 90% distillation temperature is 265 ° C, and the 95% distillation temperature is higher than 270 ° C, it is difficult to ignite and it takes time to reach steady combustion. This is not preferable. When the 50% distillation temperature is 185 ° C, the 70% distillation temperature is 200 ° C, the 90% distillation temperature is 225 ° C, and the 95% distillation temperature is lower than 240 ° C, when using a core type / radial oil stove. The stable combustion state of keeping the combustion cylinder in a red-hot state without leaving the flame from the upper part of the combustion cylinder cannot be maintained, and it may be difficult to extinguish the fire when extinguishing.
本発明の燃料油組成物に使用するｎ−パラフィンの純度は９８容量％以上である。換言すれば、本発明の燃料油組成物は９８容量％以上ｎ−パラフィンを含有する。純度が９８容量％未満のものは、不純物の影響が大きくなり、燃焼性が低下する可能性があり好ましくない。
本発明において使用するｎ−パラフィンは、炭素数８〜１６のｎ−パラフィンから成ることが好ましい。炭素数７以下および炭素数１７以上のｎ−パラフィンが存在した場合、蒸留性状を前述の適正範囲に制御することが困難となる可能性があり好ましくない。
また本発明において使用するｎ−パラフィンは、炭素数８〜１６のｎ−パラフィンの内、炭素数１２〜１６のｎ−パラフィンの合計量が３３〜５５容量％、特に３５〜５２容量％であることが好ましい。炭素数１２〜１６のｎ−パラフィンが３３容量％未満である場合、前述の適正蒸留性状の内、５０％留出温度が１８５℃、７０％留出温度が２００℃を下回る可能性があり好ましくない。炭素数１２〜１６のｎ−パラフィンが５５容量％より多い場合、５０％留出温度が２２０℃、７０％留出温度が２４０℃を超える可能性があり好ましくない。
また本発明において使用するｎ−パラフィンは、炭素数８〜１６のｎ−パラフィンの内、炭素数１５と炭素数１６のｎ−パラフィンの合計量が５〜１８容量％、特に６〜１６容量％であることが好ましい。炭素数１５と炭素数１６のｎ−パラフィンの合計量が５容量％未満である場合、前述の適正蒸留性状の内、９０％留出温度が２２５℃、９５％留出温度が２４０℃を下回る可能性があり好ましくない。炭素数１５と炭素数１６のｎ−パラフィンの合計量が１８容量％より多い場合、９０％留出温度が２６５℃、９５％留出温度が２７０℃を超える可能性があり好ましくない。
The purity of n-paraffin used in the fuel oil composition of the present invention is 98% by volume or more. In other words, the fuel oil composition of the present invention contains 98% by volume or more of n-paraffin. A material having a purity of less than 98% by volume is not preferable because the influence of impurities becomes large and combustibility may be lowered.
The n-paraffin used in the present invention is preferably composed of an n-paraffin having 8 to 16 carbon atoms. When n-paraffins having 7 or less carbon atoms and 17 or more carbon atoms are present, it may be difficult to control the distillation properties within the above-described appropriate range, which is not preferable.
The n-paraffin used in the present invention is a total amount of n-paraffins having 12 to 16 carbon atoms among n-paraffins having 8 to 16 carbon atoms, particularly 33 to 55 vol%. It is preferable. When n-paraffin having 12 to 16 carbon atoms is less than 33% by volume, among the above-mentioned proper distillation properties, there is a possibility that the 50% distillation temperature may be 185 ° C and the 70% distillation temperature may be lower than 200 ° C. Absent. When the n-paraffin having 12 to 16 carbon atoms is more than 55% by volume, the 50% distillation temperature may be 220 ° C and the 70% distillation temperature may exceed 240 ° C, which is not preferable.
The n-paraffin used in the present invention has a total amount of 15 to 16 carbon atoms of n-paraffins having 8 to 16 carbon atoms, and particularly 6 to 16 volume%. It is preferable that When the total amount of n-paraffins having 15 carbon atoms and 16 carbon atoms is less than 5% by volume, 90% distillation temperature is below 225 ° C and 95% distillation temperature is below 240 ° C among the above-mentioned proper distillation properties. There is a possibility that it is not preferable. If the total amount of n-paraffins having 15 and 16 carbon atoms is more than 18% by volume, the 90% distillation temperature may exceed 265 ° C and the 95% distillation temperature may exceed 270 ° C, which is not preferable.
本発明における燃料油組成物のＣ／Ｈ比は、０．４４〜０．４８であることが好ましい。Ｃ／Ｈが０．４８より大きい場合、煙点が低くなり、煤発生等の原因となるため好ましくない。またＣ／Ｈが０．４４より小さいものは灯油留分としては軽質になり過ぎ、引火点がＪＩＳ Ｋ２２０３で定められる規格値である４０℃を下回る可能性があり好ましくない。 The C / H ratio of the fuel oil composition in the present invention is preferably 0.44 to 0.48. When C / H is larger than 0.48, the smoke point becomes low, which causes the generation of soot and the like, which is not preferable. Moreover, when C / H is smaller than 0.44, the kerosene fraction becomes too light, and the flash point may be lower than 40 ° C. which is a standard value defined by JIS K2203, which is not preferable.
本発明における燃料油組成物の硫黄分は、１０質量ｐｐｍ以下、好ましくは５質量ｐｐｍ以下であることが好ましい。硫黄含有量は少ないほど好ましく、硫黄分が１０質量ｐｐｍより多い場合、硫黄分に由来する臭気が強くなるため好ましくない。 The sulfur content of the fuel oil composition in the present invention is 10 mass ppm or less, preferably 5 mass ppm or less. The smaller the sulfur content, the better. The sulfur content higher than 10 ppm by mass is not preferable because the odor derived from the sulfur content becomes strong.
本発明における燃料油組成物の総発熱量は、３３〜３８ＭＪ／ｌであることが好ましい。総発熱量が３３ＭＪ／ｌより小さい場合、十分な暖房ができず、燃料消費量が多くなるため好ましくない。また総発熱量が３８ＭＪ／ｌより大きい場合には、発熱が大きすぎ、現行のＪＩＳ１号灯油を使用することを目的に設計された暖房機器には適さない可能性があり好ましくない。 The total calorific value of the fuel oil composition in the present invention is preferably 33 to 38 MJ / l. When the total calorific value is less than 33 MJ / l, it is not preferable because sufficient heating cannot be performed and fuel consumption increases. Further, when the total heat generation amount is larger than 38 MJ / l, the heat generation is too large, which is not preferable because it may not be suitable for a heating device designed to use the current JIS No. 1 kerosene.
本発明における燃料油組成物の製造方法は、特に定めるものではないが、市販溶剤の混合、種々の原料から得られる水素化分解油からの精製油、あるいは種々の原料から得られる合成燃料油等が使用可能である。 The production method of the fuel oil composition in the present invention is not particularly defined, but mixing of commercially available solvents, refined oil from hydrocracked oil obtained from various raw materials, synthetic fuel oil obtained from various raw materials, etc. Can be used.
（作用）
家庭用暖房機器に使用される灯油は、臭気が少なく、使用時に煤発生が少ないものが求められるが、ｎ−パラフィンを燃料として利用する場合、燃焼性が良すぎるため従来灯油を使用することを基準として設計されている現行の燃焼機器に対しては安定した燃焼が保てない場合がある。
本発明者らは、鋭意検討を重ねた結果、ｎ−パラフィンを石油ストーブ用燃料として使用する場合、燃焼性と蒸留性状が密接な関係にあり、適正な蒸留性状を有するｎ−パラフィン燃料を使用することで、安定燃焼を達成し、消化性も良好であることを見出した。
(Function)
Kerosene used in household heating appliances is required to have low odor and low soot generation when used, but when using n-paraffin as fuel, it is necessary to use conventional kerosene because it is too combustible. Stable combustion may not be maintained for current combustion equipment designed as a standard.
As a result of intensive studies, the present inventors have used an n-paraffin fuel having an appropriate distillation property because the combustion property and the distillation property are closely related when using n-paraffin as a fuel for an oil stove. It was found that stable combustion was achieved and digestibility was good.
次に、本発明を実施例および比較例によりさらに具体的に説明する。なお、本発明は、これらの例によって何ら制限されるものではない。実施例、比較例において、引火点、蒸留性状、硫黄分、煙点は、ＪＩＳ Ｋ ２２０３に定められる方法に準拠して測定を行なった。
また石油ストーブを用いた燃焼性評価は下記方法により行なった。
Next, the present invention will be described more specifically with reference to examples and comparative examples. In addition, this invention is not restrict | limited at all by these examples. In Examples and Comparative Examples, the flash point, distillation properties, sulfur content, and smoke point were measured according to the method defined in JIS K 2203.
Moreover, the combustibility evaluation using the oil stove was performed by the following method.
＜燃焼性試験方法＞
芯式・放射型石油ストーブを用いて各種試料の燃焼性を、燃焼中の燃焼状態、消火時、それぞれにおいて目視にて評価した。評価基準を下記表１および表２に示す。
<Flammability test method>
The flammability of various samples using a core type / radiation type oil stove was visually evaluated in the combustion state during combustion and at the time of extinction. The evaluation criteria are shown in Table 1 and Table 2 below.
＜実施例１＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８（炭素数８のｎ−パラフィンを意味する。以下、同様）：４．０容量％、ｎ−Ｃ９：１５．０容量％、ｎ−Ｃ１０：１６．０容量％、ｎ−Ｃ１１：１６．０容量％、ｎ−Ｃ１２：１３．０容量％、ｎ−Ｃ１３：１２．０容量％、ｎ−Ｃ１４：１０．０容量％、ｎ−Ｃ１５：１０．０容量％、ｎ−Ｃ１６：４．０容量％の割合で混合し、蒸留性状が初留点１５１℃、５０％留出温度２０６℃、７０％留出温度２２９℃、９０％留出温度２５４℃、９５％留出温度２６１℃であり、Ｃ／Ｈ比が０．４６であるｎ−パラフィン９９．５容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表３に示す。
<Example 1>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8 (meaning n-paraffin having 8 carbon atoms; hereinafter the same): 4.0% by volume, n-C9: 15.0 % By volume, n-C10: 16.0% by volume, n-C11: 16.0% by volume, n-C12: 13.0% by volume, n-C13: 12.0% by volume, n-C14: 10.0 Mixing ratio of volume%, n-C15: 10.0 volume%, n-C16: 4.0 volume%, distillation properties are initial boiling point 151 ° C, 50% distillation temperature 206 ° C, 70% distillation temperature. A fuel oil composition of 99.5% by volume of n-paraffin having 229 ° C., 90% distillation temperature of 254 ° C., 95% distillation temperature of 261 ° C. and C / H ratio of 0.46 was prepared. Table 3 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
＜実施例２＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８：１０．０容量％、ｎ−Ｃ９：１３．０容量％、ｎ−Ｃ１０：１５．０容量％、ｎ−Ｃ１１：１５．０容量％、ｎ−Ｃ１２：１３．０容量％、ｎ−Ｃ１３：１１．０容量％、ｎ−Ｃ１４：９．０容量％、ｎ−Ｃ１５：９．０容量％、ｎ−Ｃ１６：５．０容量％の割合で混合し、蒸留性状が初留点１４０℃、５０％留出温度２００℃、７０％留出温度２２２℃、９０％留出温度２４８℃、９５％留出温度２５７℃であり、Ｃ／Ｈ比が０．４５であるｎ−パラフィン９９．３容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表３に示す。
<Example 2>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8: 10.0% by volume, n-C9: 13.0% by volume, n-C10: 15.0% by volume, n-C11 15.0% by volume, n-C12: 13.0% by volume, n-C13: 11.0% by volume, n-C14: 9.0% by volume, n-C15: 9.0% by volume, n-C16 : Mixed at a ratio of 5.0% by volume, distillation properties are 140 ° C. initial distillation point, 50% distillation temperature 200 ° C., 70% distillation temperature 222 ° C., 90% distillation temperature 248 ° C., 95% distillation temperature. A fuel oil composition of 99.3 vol% n-paraffin having a C / H ratio of 0.45 at 257 ° C. was prepared. Table 3 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
＜実施例３＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８：４．０容量％、ｎ−Ｃ９：１９．５容量％、ｎ−Ｃ１０：２０．０容量％、ｎ−Ｃ１１：１９．５容量％、ｎ−Ｃ１２：１８．０容量％、ｎ−Ｃ１３：７．０容量％、ｎ−Ｃ１４：５．０容量％、ｎ−Ｃ１５：５．０容量％、ｎ−Ｃ１６：２．０容量％の割合で混合し、蒸留性状が初留点１５３℃、５０％留出温度１９１℃、７０％留出温度２０７℃、９０％留出温度２３４℃、９５％留出温度２４９℃であり、Ｃ／Ｈ比が０．４５であるｎ−パラフィン９９．４容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表３に示す。
<Example 3>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8: 4.0% by volume, n-C9: 19.5% by volume, n-C10: 20.0% by volume, n-C11 : 19.5 vol%, n-C12: 18.0 vol%, n-C13: 7.0 vol%, n-C14: 5.0 vol%, n-C15: 5.0 vol%, n-C16 : Mixing ratio of 2.0% by volume, distillation properties are initial distillation point 153 ° C, 50% distillation temperature 191 ° C, 70% distillation temperature 207 ° C, 90% distillation temperature 234 ° C, 95% distillation temperature A fuel oil composition of 99.4 vol% n-paraffin having a C / H ratio of 0.45 at 249 ° C was prepared. Table 3 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
＜比較例１＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８：１．０容量％、ｎ−Ｃ９：３３．０容量％、ｎ−Ｃ１０：４４．５容量％、ｎ−Ｃ１１：１９．０容量％、ｎ−Ｃ１２：１．５容量％、ｎ−Ｃ１３：１．０容量％の割合で混合し、蒸留性状が初留点１５４℃、５０％留出温度１７１℃、７０％留出温度１７６℃、９０％留出温度１８６℃、９５％留出温度１９１℃であり、Ｃ／Ｈ比が０．４５であるｎ−パラフィン９９．３容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表４に示す。
<Comparative Example 1>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8: 1.0% by volume, n-C9: 33.0% by volume, n-C10: 44.5% by volume, n-C11 : 19.0% by volume, n-C12: 1.5% by volume, n-C13: 1.0% by volume. Distillation properties are initial boiling point 154 ° C., 50% distillation temperature 171 ° C., 70 A 99.3 vol% n-paraffin fuel oil composition having a% distillation temperature of 176 ° C, a 90% distillation temperature of 186 ° C, a 95% distillation temperature of 191 ° C and a C / H ratio of 0.45 is prepared. did. Table 4 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
＜比較例２＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８：４．０容量％、ｎ−Ｃ９：２４．５容量％、ｎ−Ｃ１０：２４．０容量％、ｎ−Ｃ１１：２３．５容量％、ｎ−Ｃ１２：２２．５容量％、ｎ−Ｃ１３：１．５容量％の割合で混合し、蒸留性状が初留点１５２℃、５０％留出温度１８１℃、７０％留出温度１９２℃、９０％留出温度２０５℃、９５％留出温度２０９℃であり、Ｃ／Ｈ比が０．４４であるｎ−パラフィン９９．４容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表４示す。
<Comparative example 2>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8: 4.0% by volume, n-C9: 24.5% by volume, n-C10: 24.0% by volume, n-C11 : 23.5% by volume, n-C12: 22.5% by volume, n-C13: 1.5% by volume. Distillation properties are initial boiling point 152 ° C., 50% distillation temperature 181 ° C., 70 A 99.4 vol.% N-paraffin fuel oil composition having a% distillation temperature of 192 ° C., a 90% distillation temperature of 205 ° C., a 95% distillation temperature of 209 ° C. and a C / H ratio of 0.44 is prepared. did. Table 4 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
＜比較例３＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８：４．０容量％、ｎ−Ｃ９：２２．０容量％、ｎ−Ｃ１０：２２．０容量％、ｎ−Ｃ１１：２１．０容量％、ｎ−Ｃ１２：１９．０容量％、ｎ−Ｃ１３：１１．０容量％、ｎ−Ｃ１４：１．０容量％の割合で混合し、蒸留性状が初留点１５２℃、５０％留出温度１８４℃、７０％留出温度１９９℃、９０％留出温度２１７℃、９５％留出温度２２３℃であり、Ｃ／Ｈ比が０．４６であるｎ−パラフィン９９．６容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表４に示す。
<Comparative Example 3>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8: 4.0% by volume, n-C9: 22.0% by volume, n-C10: 22.0% by volume, n-C11 : 21.0% by volume, n-C12: 19.0% by volume, n-C13: 11.0% by volume, n-C14: 1.0% by volume. N-paraffin having a C / H ratio of 0.46, 50% distillation temperature of 184 ° C, 70% distillation temperature of 199 ° C, 90% distillation temperature of 217 ° C, 95% distillation temperature of 223 ° C. A 6 vol% fuel oil composition was prepared. Table 4 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
＜比較例４＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８：４．０容量％、ｎ−Ｃ９：１８．０容量％、ｎ−Ｃ１０：１８．０容量％、ｎ−Ｃ１１：１７．０容量％、ｎ−Ｃ１２：１６．０容量％、ｎ−Ｃ１３：１４．０容量％、ｎ−Ｃ１４：１１．０容量％、ｎ−Ｃ１５：２．０容量％の割合で混合し、蒸留性状が初留点１５３℃、５０％留出温度１９５℃、７０％留出温度２１３℃、９０％留出温度２３２℃、９５％留出温度２３９℃であり、Ｃ／Ｈ比が０．４５であるｎ−パラフィン９９．７容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表４に示す。
<Comparative example 4>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8: 4.0% by volume, n-C9: 18.0% by volume, n-C10: 18.0% by volume, n-C11 : 17.0 vol%, n-C12: 16.0 vol%, n-C13: 14.0 vol%, n-C14: 11.0 vol%, n-C15: 2.0 vol% The distillation properties are initial distillation point 153 ° C., 50% distillation temperature 195 ° C., 70% distillation temperature 213 ° C., 90% distillation temperature 232 ° C., 95% distillation temperature 239 ° C., and the C / H ratio is A 99.7 vol% n-paraffin fuel oil composition of 0.45 was prepared. Table 4 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
＜比較例５＞
純度９８．０容量％以上の市販ｎ−パラフィン溶剤を用いて、ｎ−Ｃ８：２．５容量％、ｎ−Ｃ９：２４．０容量％、ｎ−Ｃ１０：３０．０容量％、ｎ−Ｃ１１：１７．５容量％、ｎ−Ｃ１２：７．５容量％、ｎ−Ｃ１３：６．５容量％、ｎ−Ｃ１４：５．０容量％、ｎ−Ｃ１５：５．０容量％、ｎ−Ｃ１６：２．０容量％の割合で混合し、蒸留性状が初留点１５２℃、５０％留出温度１８３℃、７０％留出温度１９９℃、９０％留出温度２３９℃、９５％留出温度２５５℃であり、Ｃ／Ｈ比が０．４５であるｎ−パラフィン９９．７容量％の燃料油組成物を調製した。得られた燃料油組成物の一般性状および、芯式・放射型石油ストーブによる燃焼試験結果を表４に示す。
<Comparative Example 5>
Using a commercially available n-paraffin solvent having a purity of 98.0% by volume or more, n-C8: 2.5% by volume, n-C9: 24.0% by volume, n-C10: 30.0% by volume, n-C11 : 17.5% by volume, n-C12: 7.5% by volume, n-C13: 6.5% by volume, n-C14: 5.0% by volume, n-C15: 5.0% by volume, n-C16 : Mixing ratio of 2.0% by volume, distillation properties are initial boiling point 152 ° C, 50% distillation temperature 183 ° C, 70% distillation temperature 199 ° C, 90% distillation temperature 239 ° C, 95% distillation temperature A fuel oil composition of 99.7% by volume of n-paraffin having a C / H ratio of 0.45 at 255 ° C. was prepared. Table 4 shows the general properties of the obtained fuel oil composition and the results of a combustion test using a core-type / radiant-type petroleum stove.
表３および表４に示される結果より、ｎ−パラフィンから調製した燃料油組成物は煙点がいずれも５０ｍｍ以上となり、非常に燃焼性に優れることが分かる。このことから、燃焼時における煤の発生もかなり抑えられることが推察される。
しかし、蒸留性状を適正化していない比較例１〜５は、芯式・放射型石油ストーブに使用した場合、安定した燃焼ができず、さらに消火し難い。比較例１〜３は、初留点以外は本発明で特定される蒸留性状の範囲より低いため、安定燃焼ができず、消火し難い結果となった。比較例４の場合は、初留点〜９０％留出温度までは本発明で特定される範囲を満たすが、９５％留出温度が低いため、安定燃焼ができず、消火し難い結果となった。比較例５の場合は、９０％留出温度および９５％留出温度は本発明で特定される範囲を満たすが、５０％留出温度および７０％留出温度が低いため、安定燃焼ができない結果となった。
一方、蒸留性状を全て満たす範囲に適正化した実施例１〜３は、高い煙点を保ったまま、芯式・放射型石油ストーブに使用しても安定した燃焼を示し、消火性も良好な結果となった。
From the results shown in Tables 3 and 4, it can be seen that the fuel oil composition prepared from n-paraffin has a smoke point of 50 mm or more, and is very excellent in combustibility. From this, it is presumed that the generation of soot during combustion can be suppressed considerably.
However, Comparative Examples 1 to 5 in which the distillation properties are not optimized cannot be stably combusted and are difficult to extinguish when used in a core-type / radiant oil stove. Since Comparative Examples 1-3 were lower than the range of the distillation property specified by the present invention except for the initial boiling point, stable combustion could not be performed, and it was difficult to extinguish. In the case of Comparative Example 4, the range specified by the present invention is satisfied from the initial boiling point to 90% distillation temperature, but since the 95% distillation temperature is low, stable combustion cannot be performed, and it is difficult to extinguish. It was. In the case of Comparative Example 5, the 90% distillation temperature and the 95% distillation temperature satisfy the ranges specified in the present invention, but the 50% distillation temperature and the 70% distillation temperature are low, so that stable combustion is not possible. It became.
On the other hand, Examples 1-3 optimized in a range that satisfies all distillation properties show stable combustion even when used in a core-type / radiant-type oil stove while maintaining a high smoke point, and also have good fire extinguishing properties. As a result.
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