JP3102934B2 - Additive composition, method of using the same, and diesel fuel - Google Patents
Additive composition, method of using the same, and diesel fuelInfo
- Publication number
- JP3102934B2 JP3102934B2 JP03324051A JP32405191A JP3102934B2 JP 3102934 B2 JP3102934 B2 JP 3102934B2 JP 03324051 A JP03324051 A JP 03324051A JP 32405191 A JP32405191 A JP 32405191A JP 3102934 B2 JP3102934 B2 JP 3102934B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- diesel
- parts
- additive composition
- additive
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Liquid Carbonaceous Fuels (AREA)
Description
【０００１】本発明はディーゼル車あるいはディーゼル
エンジンの始動性、始動後の騒音と排気ガスおよび暖機
性を改善し、ならびに燃料ノズルの汚れを防止するため
の添加剤組成物とその使用方法並びに燃料に関する。[0001] The present invention relates to an additive composition for improving the startability of a diesel vehicle or a diesel engine, noise after starting, exhaust gas and warm-up properties, and preventing contamination of a fuel nozzle, a method of using the same, and fuel. About.
【０００２】[0002]
【従来の技術】わが国のディーゼル軽油は欧米主要国に
比べて品質に優れていることとガソリン車に比べて燃料
費が少いという長所によって、ディーゼル車の保有台数
は飛躍的に伸びている。軽油の品質が劣る欧米主要国で
はとくに気温が低い地域で始動性を向上させるために、
０．１容量％以上のセタン価向上剤をディーゼル軽油に
添加することが行われているが、わが国では軽油のセタ
ン価が高く、とくにセタン価向上剤を添加する必要性は
認められていなかった。2. Description of the Related Art Diesel diesel oil has a remarkable increase in the number of diesel vehicles owned, because of its superior quality compared to major countries in Europe and the United States, and its low fuel cost compared to gasoline vehicles. In major European and U.S. countries where gas oil quality is inferior, in order to improve startability, especially in regions with low temperatures,
Addition of a cetane number improver of 0.1% by volume or more to diesel gas oil has been carried out. However, in Japan, the cetane number of gas oil is high, and there is no need to add a cetane number improver in particular. .
【０００３】また、低温流動性についても目詰まり点の
ＪＩＳ化によって十分な品質が付与され、とくに問題は
ないとされている。さらに、ディーゼルの燃料噴射ノズ
ルの汚れ防止用清浄剤もとくに必要はないと考えられ、
１９８７年以後、ヨーロッパでプレミアム軽油に添加さ
れていたこの種類の添加剤はわが国には受け入れられな
かった。[0003] Further, it is said that sufficient quality is given to the low-temperature fluidity by the JIS of the clogging point, and there is no particular problem. Furthermore, it is thought that there is no particular need for a detergent for preventing contamination of diesel fuel injection nozzles.
This type of additive, which has been added to premium diesel oil in Europe since 1987, has not been accepted by Japan.
【０００４】[0004]
【発明が解決しようとする課題】東京、仙台、札幌およ
び旭川で実施したディーゼル車３８０台の運転者のアン
ケート調査結果から、ディーゼル車には始動性、始動後
の騒音と排気ガスおよび暖機性に問題があり、この傾向
は気温が低いほど著しいことが明らかとなった。また、
低温流動性が付与されてはいるが、予期しない寒波が襲
来した場合には軽油が流動しない現象が認められてい
る。According to the results of a questionnaire survey of 380 diesel-powered drivers conducted in Tokyo, Sendai, Sapporo and Asahikawa, it was found that diesel vehicles had good startability, noise after starting, exhaust gas and warm-up. It was found that this tendency was more pronounced at lower temperatures. Also,
Although low-temperature fluidity has been imparted, it has been observed that gas oil does not flow when an unexpected cold wave strikes.
【０００５】さらに、長距離運送に使用されるトラック
では、仮眠のために長時間に亘ってエンジンをアイドリ
ング運転して空調設備を動かすことが多いことが分か
り、この間に燃料噴射ノズルが汚れて排気ガスが悪化す
ることも明らかになった。したがって、これまでは、わ
が国のディーゼル軽油の品質が優れていることで考えら
れなかったディーゼル車の問題が、自動車の設計法や使
用方法の変化によって注目されている。[0005] Furthermore, it has been found that in a truck used for long-distance transportation, the engine is often idling for a long time to operate the air conditioner for a nap, and during this time the fuel injection nozzle becomes dirty and exhaust gas is exhausted. It was also found that the gas deteriorated. Therefore, the problem of diesel vehicles, which had not been considered because of the superior quality of diesel light oil in Japan, has been attracting attention due to changes in the method of designing and using vehicles.
【０００６】[0006]
【課題を解決するための手段】ディーゼル車あるいはデ
ィーゼルエンジンの始動性、始動後の騒音と排気ガス、
暖機性、および燃料噴射ノズルの汚れを総合的に改善す
るには、ディーゼル燃料の低温流動性と圧縮着火性を向
上させ、同時に燃料噴射ノズルの汚れを防止することが
必要である。これを解決する手段として低温流動性向上
剤、セタン価向上剤および燃料噴射ノズルの汚れ防止用
清浄剤の混合物をディーゼル燃料に添加することを鋭意
研究し、これを実現する手段を発明するに至った。[Means for Solving the Problems] The starting performance of a diesel vehicle or a diesel engine, noise and exhaust gas after starting,
In order to comprehensively improve the warm-up property and the contamination of the fuel injection nozzle, it is necessary to improve the low-temperature fluidity and compression ignition performance of the diesel fuel, and at the same time, to prevent the contamination of the fuel injection nozzle. As a means for solving this, a keen study has been made on adding a mixture of a low-temperature fluidity improver, a cetane number improver, and a detergent for preventing contamination of a fuel injection nozzle to diesel fuel, and the inventors have invented means for realizing this. Was.
【０００７】本発明の構成は、低温流動性向上剤（エチ
レン酢酸ビニルコポリマー系添加剤）を２〜１５部、セ
タン価向上剤（炭素数６または８のアルキルナイトレー
ト）を５〜２５部、燃料噴射ノズルの汚れ防止用清浄剤
（イミド系添加剤）を１〜１０部、残部を溶剤とし、合
計１００部で構成する添加剤組成物である。本発明の使
用方法は、上記本発明に係る添加剤組成物をディーゼル
車あるいはディーゼルエンジンの燃料タンクに投入する
か、あるいは予め燃料に添加して使用することによりな
る。本発明に係るディーゼル車あるいはディーゼルエン
ジン用燃料は、燃料対比の添加量が低温流動性向上剤
（エチレン酢酸ビニルコポリマー系添加剤）８０〜６０
０ｐｐｍ、セタン価向上剤（炭素数６または８のアルキ
ルナイトレート）２００〜１０００ｐｐｍ、燃料噴射ノ
ズルの汚れ防止用清浄剤（イミド系添加剤）４０〜４０
０ｐｐｍである。The composition of the present invention comprises 2 to 15 parts of a low-temperature fluidity improver (ethylene-vinyl acetate copolymer-based additive), 5 to 25 parts of a cetane number improver (C6 or C8 alkyl nitrate), The additive composition is composed of 1 to 10 parts of a detergent for preventing contamination of the fuel injection nozzle (imide-based additive) and 100 parts of the remaining solvent. The method of use of the present invention comprises charging the additive composition according to the present invention into a fuel tank of a diesel vehicle or a diesel engine, or adding the additive composition to a fuel in advance. The fuel for a diesel vehicle or a diesel engine according to the present invention has a low-temperature fluidity improver (ethylene-vinyl acetate copolymer-based additive) of 80 to 60 as compared with the fuel.
0 ppm, cetane number improver (alkyl nitrate having 6 or 8 carbon atoms) 200 to 1000 ppm, detergent for preventing contamination of fuel injection nozzle (imide-based additive) 40 to 40
It is 0 ppm.
【０００８】[0008]
【実施例】本発明の添加剤組成物をディーゼル車あるい
はディーゼルエンジンの燃料タンクに投入するか、ある
いは予め燃料に添加して使用した場合の効果を実施例１
〜４に、また、本発明の添加剤組成物を構成する各添加
剤を単独で添加して使用した場合、効果を認めにくいこ
とを比較例１〜３に示す。EXAMPLE 1 The effect of adding the additive composition of the present invention to a fuel tank of a diesel vehicle or a diesel engine, or adding the additive composition to a fuel in advance and using it was described in Example 1.
Comparative Examples 1 to 3 show that the effects are hardly observed when each additive constituting the additive composition of the present invention is used alone.
【０００９】（実施例１）低温流動性向上剤を５部、セ
タン価向上剤を２５部、燃料噴射ノズルの汚れ防止用清
浄剤を１部、残部を溶剤とし、合計１００部で構成した
添加剤組成物を燃料５０リッターあたり２００ml使用し
た。気温−１０℃で始動しにくい２．５トン小型ディー
ゼルトラック２台を使用した。これらの燃料タンクに添
加剤組成物を投入した後に、ＪＩＳ２号軽油をＦＵＬＬ
まで充填し、約１５分走行して停止した。翌朝、最低気
温−１０℃でも問題なく始動した。添加剤を使用しない
場合に比べて始動後１〜３分後のアイドリング騒音が約
６０％、排気黒煙が１５および２０％低減した。時速５
０kmで５km走行後にエンジン油温で３〜５℃、冷却水温
度で１０〜２０℃のさらなる上昇が認められた。(Example 1) Addition of 5 parts of a low-temperature fluidity improver, 25 parts of a cetane number improver, 1 part of a detergent for preventing contamination of a fuel injection nozzle, and the remaining solvent as a total of 100 parts. The agent composition was used in an amount of 200 ml per 50 liters of fuel. Two 2.5 ton small diesel trucks that are difficult to start at -10 ° C were used. After adding the additive composition to these fuel tanks, JIS No. 2 light oil was FULL
And run for about 15 minutes and stopped. The next morning, even at a minimum temperature of -10 ° C, I started without any problems. The idling noise and the exhaust black smoke were reduced by approximately 60% and 15 and 20%, respectively, 1 to 3 minutes after the start as compared with the case where no additive was used. 5 per hour
After traveling 5 km at 0 km, a further increase of 3 to 5 ° C in engine oil temperature and 10 to 20 ° C in cooling water temperature was observed.
【００１０】（実施例２）低温流動性向上剤を１０部、
セタン価向上剤を２０部、燃料噴射ノズルの汚れ防止用
清浄剤を５部、残部を溶剤とし、合計１００部で構成し
た添加剤組成物を燃料５０リッターあたり２００ml使用
した。商業車、自家用車合計１７４台に対して地下タン
クからの軽油給油直前に自動車の燃料タンクに添加剤組
成物を投入し、添加前と比較して次回の給油までの状況
をアンケート調査した（回収率９４％）。なお、調査地
域の最低気温は−２〜−７℃であった。この結果、始動
性が向上したとする答えは６０％、始動後の排気黒煙が
低下したとする答えは４７％、暖機性が向上し加速が良
くなったとする答えは５２％であった。(Example 2) 10 parts of a low-temperature fluidity improver,
An additive composition composed of 20 parts of a cetane number improver, 5 parts of a detergent for preventing contamination of a fuel injection nozzle, and the remainder as a solvent was used in an amount of 200 parts per 50 liters of fuel. A total of 174 commercial vehicles and private cars were charged with the additive composition in the fuel tank of the vehicle immediately before refueling light oil from the underground tank, and a questionnaire survey was conducted on the situation until the next refueling compared to before the addition (recovery). Rate 94%). In addition, the minimum temperature of the survey area was -2 to -7 ° C. As a result, 60% answered that the startability was improved, 47% said that the exhaust black smoke after starting was reduced, and 52% said that the warm-up property was improved and the acceleration was improved. .
【００１１】（実施例３）低温流動性向上剤を２部、セ
タン価向上剤を１５部、燃料噴射ノズルの汚れ防止用清
浄剤を１０部、残部を溶剤とし、合計１００部で構成し
た添加剤組成物を燃料５０リッターあたり２００ml使用
した。４ＷＤボックス型ディーゼルバンと２トン小型デ
ィーゼルトラックに添加剤組成物を添加した軽油を使用
して、エンジン始動後、排気ガスに含まれる粒子状物質
の濃度を連続測定して添加前と比較した。粒子状物質濃
度は時間とともに増加するが、間欠的に濃度の低下が観
測され、この間隔は添加前に比べて頻繁であった。エン
ジン停止後に燃料噴射ノズルを走査電子顕微鏡で観察し
たところ、粒子状物質濃度が間欠的に低下した時点での
ノズル汚れは添加前に比べてかなり少ないことが分かっ
た。外気温度は２℃で、ＪＩＳ１号軽油を使用した。Example 3 2 parts of a low-temperature fluidity improver, 15 parts of a cetane number improver, 10 parts of a cleaning agent for preventing contamination of a fuel injection nozzle, and the remaining part as a solvent, comprising 100 parts in total. The agent composition was used in an amount of 200 ml per 50 liters of fuel. Using light oil obtained by adding an additive composition to a 4WD box-type diesel van and a 2-ton small diesel truck, after starting the engine, the concentration of particulate matter contained in exhaust gas was continuously measured and compared with that before addition. Although the particulate matter concentration increased with time, an intermittent decrease in concentration was observed, and this interval was more frequent than before addition. When the fuel injection nozzle was observed with a scanning electron microscope after the engine was stopped, it was found that the nozzle fouling when the particulate matter concentration was intermittently reduced was considerably smaller than before the addition. The outside air temperature was 2 ° C., and JIS No. 1 light oil was used.
【００１２】（実施例４）低温流動性向上剤を２部、セ
タン価向上剤を１０部、燃料噴射ノズルの汚れ防止用清
浄剤を１０部、残部を溶剤とし、合計１００部で構成し
た添加剤組成物を燃料５０リッターあたり２００ml使用
した。長距離輸送に使用される１０トン大型ディーゼル
トラックをアイドリング運転し、４時間経過した時点で
排気ガスの悪臭がひどくなったので、エンジンをオーバ
ーホールしたところ、燃料噴射ノズルおよび燃焼室にか
なりのたい積物が認められた。たい積物を清掃したのち
にエンジンを組み込み、添加剤組成物を投入した軽油を
燃料タンクに充填してアイドリング運転を実施した。５
時間経過までの排気ガスの悪臭を３人で嗅感し、十分改
善されていることを確認した。外気温度は６℃で、ＪＩ
Ｓ特１号軽油を使用した。Example 4 2 parts of a low-temperature fluidity improver, 10 parts of a cetane number improver, 10 parts of a cleaning agent for preventing contamination of a fuel injection nozzle, and the remaining solvent as a total of 100 parts. The agent composition was used in an amount of 200 ml per 50 liters of fuel. When a 10-ton heavy-duty diesel truck used for long-distance transportation was idling and exhaust gas odor became severe after 4 hours, the engine was overhauled, and considerable deposits were found in the fuel injection nozzle and combustion chamber. Was observed. After the sediment was cleaned, the engine was installed, light oil filled with the additive composition was filled in the fuel tank, and idling operation was performed. 5
The odor of the exhaust gas until the time passed was smelled by three persons, and it was confirmed that the odor was sufficiently improved. The outside air temperature is 6 ℃, JI
S special No. 1 light oil was used.
【００１３】（比較例１）低温流動性向上剤（エチレン
酢酸ビニルコポリマー系添加剤）をＪＩＳ２号軽油に６
００ppm 添加し、ディーゼル乗用車で室内温度−１０℃
で使用した。始動性に問題はなかったが、始動２０分後
のエンジン油とエンジン冷却水温度は本発明の添加剤組
成物を添加した場合に比べてそれぞれ３および１０℃低
く、暖機性に劣ることが分かった。(Comparative Example 1) A low-temperature fluidity improver (ethylene-vinyl acetate copolymer-based additive) was added to JIS No. 2 light oil.
Add 00ppm, Diesel passenger car indoor temperature -10 ℃
Used in. Although there was no problem in the startability, the temperature of the engine oil and the engine cooling water 20 minutes after the start were lower by 3 and 10 ° C., respectively, as compared with the case where the additive composition of the present invention was added. Do you get it.
【００１４】（比較例２）セタン価向上剤（炭素数６ま
たは８のアルキルナイトレート）をＪＩＳ３号軽油に１
２００ppm 添加し、２．５トン小型ディーゼルトラック
で室内温度−２０℃で使用した。始動性に問題はなかっ
たが、始動１０分後にエンジンが停止した。停止の原因
は自動車の燃料配管が析出ワックスで閉塞したためであ
った。また、タンク内の燃料の１０％残留炭素分は０．
１１重量％で、この燃料はＪＩＳＫ２２０４からはずれ
ていることが判明した。これに対して本発明の添加剤組
成物を添加した場合にはとくに問題は発生しなかった。Comparative Example 2 A cetane number improver (alkyl nitrate having 6 or 8 carbon atoms) was added to JIS No. 3
200 ppm was added, and it was used at a room temperature of −20 ° C. with a 2.5-ton light-duty diesel truck. There was no problem in the startability, but the engine stopped 10 minutes after the start. The cause of the stoppage was that the fuel pipe of the automobile was clogged with the precipitated wax. The 10% residual carbon content of the fuel in the tank is 0.1%.
At 11% by weight, this fuel was found to be off JIS K2204. On the other hand, when the additive composition of the present invention was added, no particular problem occurred.
【００１５】（比較例３）清浄剤（イミド系添加剤）を
ＪＩＳ１号軽油に４００ppm 添加し、２トン小型ディー
ゼルエンジンで室内温度−５℃で使用した。エンジンは
始動したが、エンジン騒音は本発明の添加剤組成物を添
加した場合に比べて３０％高いことが分かった。Comparative Example 3 A detergent (imide-based additive) was added to JIS No. 1 light oil at 400 ppm, and used in a 2-ton small diesel engine at room temperature of -5 ° C. Although the engine was started, the engine noise was found to be 30% higher than when the additive composition of the present invention was added.
【００１６】[0016]
【本発明の効果】ディーゼル燃料の低温流動性と圧縮着
火性を向上させ、同時に燃料噴射ノズルの汚れを防止す
るために、低温流動性向上剤、セタン価向上剤および燃
料噴射ノズルの汚れ防止用清浄剤の混合物をディーゼル
燃料に添加することによって、ディーゼル車あるいはデ
ィーゼルエンジンの始動性、始動後の騒音と排気ガス、
暖機性ならびに燃料噴射ノズルの汚れに対する総合的な
効果が発揮されることを確認することが出来た。According to the present invention, a low-temperature fluidity improver, a cetane number improver, and a dirt preventive for a fuel injection nozzle are provided in order to improve the low-temperature fluidity and compression ignition performance of diesel fuel and at the same time prevent contamination of the fuel injection nozzle. By adding a mixture of detergents to diesel fuel, the startability of diesel vehicles or diesel engines, noise and emissions after starting,
It was confirmed that the overall effect of warming up and contamination of the fuel injection nozzle was exhibited.
Claims (4)
ポリマー系添加剤）を２〜１５部、セタン価向上剤（炭
素数６または８のアルキルナイトレート）を５〜２５
部、燃料噴射ノズルの汚れ防止用清浄剤（イミド系添加
剤）を１〜１０部、残部を溶剤とし、合計１００部で構
成する添加剤組成物。(1) 2 to 15 parts of a low-temperature fluidity improver (ethylene-vinyl acetate copolymer-based additive) and 5 to 25 parts of a cetane number improver (C6 or C8 alkyl nitrate).
An additive composition comprising 1 to 10 parts by weight of a cleaning agent (imide-based additive) for preventing contamination of a fuel injection nozzle and the remainder being a solvent, and a total of 100 parts.
車あるいはディーゼルエンジンの燃料タンクに投入し、
タンク内の燃料を使用する方法。2. The method according to claim 1, wherein the additive composition is charged into a fuel tank of a diesel vehicle or a diesel engine.
How to use the fuel in the tank.
添加し、ディーゼル車あるいはディーゼルエンジンの燃
料として使用する方法。3. A method of adding the additive composition according to claim 1 to a fuel in advance and using the additive composition as a fuel for a diesel vehicle or a diesel engine.
（エチレン酢酸ビニルコポリマー系添加剤）８０〜６０
０ｐｐｍ、セタン価向上剤（炭素数６または８のアルキ
ルナイトレート）２００〜１０００ｐｐｍ、燃料噴射ノ
ズルの汚れ防止用清浄剤（イミド系添加剤）４０〜４０
０ｐｐｍであるディーゼル車あるいはディーゼルエンジ
ン用燃料。4. A low-temperature fluidity improver (ethylene-vinyl acetate copolymer-based additive) of from 80 to 60, based on the fuel.
0 ppm, cetane number improver (alkyl nitrate having 6 or 8 carbon atoms) 200 to 1000 ppm, detergent for preventing contamination of fuel injection nozzle (imide-based additive) 40 to 40
0 ppm fuel for diesel vehicles or diesel engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03324051A JP3102934B2 (en) | 1991-11-13 | 1991-11-13 | Additive composition, method of using the same, and diesel fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03324051A JP3102934B2 (en) | 1991-11-13 | 1991-11-13 | Additive composition, method of using the same, and diesel fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05132682A JPH05132682A (en) | 1993-05-28 |
| JP3102934B2 true JP3102934B2 (en) | 2000-10-23 |
Family
ID=18161606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03324051A Expired - Lifetime JP3102934B2 (en) | 1991-11-13 | 1991-11-13 | Additive composition, method of using the same, and diesel fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3102934B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2538608C1 (en) * | 2013-09-13 | 2015-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный нефтяной технический университет" | Fuel composition |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4343235C1 (en) | 1993-12-17 | 1994-12-22 | Goldschmidt Ag Th | Use of organofunctionally modified polysiloxanes for defoaming diesel fuel |
| DE19516360C1 (en) * | 1995-05-04 | 1996-05-15 | Goldschmidt Ag Th | Use of organo-functionally modified polysiloxane(s) to defoam diesel fuel |
| DE102005048720A1 (en) | 2005-10-12 | 2007-04-19 | Basf Ag | Use of proteins as an antifoam component in fuels |
| US20100325944A1 (en) * | 2007-05-30 | 2010-12-30 | Baker Hughes Incorporated | Additives for Cetane Improvement in Middle Distillate Fuels |
| JPWO2022075348A1 (en) | 2020-10-07 | 2022-04-14 | ||
| CN117645895B (en) * | 2024-01-30 | 2024-04-16 | 山东新蓝环保科技有限公司 | Clean diesel additive and preparation method thereof |
-
1991
- 1991-11-13 JP JP03324051A patent/JP3102934B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2538608C1 (en) * | 2013-09-13 | 2015-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный нефтяной технический университет" | Fuel composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05132682A (en) | 1993-05-28 |
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