WO2021020181A1 - Lean burn engine-use fuel composition - Google Patents

Lean burn engine-use fuel composition Download PDF

Info

Publication number
WO2021020181A1
WO2021020181A1 PCT/JP2020/027879 JP2020027879W WO2021020181A1 WO 2021020181 A1 WO2021020181 A1 WO 2021020181A1 JP 2020027879 W JP2020027879 W JP 2020027879W WO 2021020181 A1 WO2021020181 A1 WO 2021020181A1
Authority
WO
WIPO (PCT)
Prior art keywords
volume
carbon atoms
fuel composition
content
less
Prior art date
Application number
PCT/JP2020/027879
Other languages
French (fr)
Japanese (ja)
Inventor
健 小畠
武虎 内木
Original Assignee
Ｅｎｅｏｓ株式会社
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 Ｅｎｅｏｓ株式会社 filed Critical Ｅｎｅｏｓ株式会社
Priority to US17/609,523 priority Critical patent/US20220228078A1/en
Priority to EP20847429.6A priority patent/EP3957707A4/en
Priority to CN202080053241.6A priority patent/CN114174475B/en
Publication of WO2021020181A1 publication Critical patent/WO2021020181A1/en

Links

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
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
    • 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
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
    • C10L1/06—Liquid carbonaceous fuels essentially based on blends of hydrocarbons for spark ignition
    • 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
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency

Definitions

  • the present invention relates to a fuel composition for a lean burn engine.
  • Patent Document 1 contains one or more types of gasoline selected from the group consisting of alkylate gasoline, catalytically modified gasoline, light catalytic cracking gasoline, and coker light gasoline.
  • a fuel composition for a lean burn engine characterized by the above is disclosed.
  • the upper limit of the air-fuel ratio (air / fuel) that can be operated is called the lean limit, and expanding this lean limit is expected to improve fuel efficiency and stabilize combustion.
  • An object of the present invention is to provide a fuel composition for a lean burn engine capable of expanding the lean limit of the lean burn engine.
  • One aspect of the present invention relates to a fuel composition for a lean burn engine, which contains a hydrocarbon having 4 to 6 carbon atoms as a main component and has an aromatic content of 25% by volume or less.
  • the content of the olefin having 4 to 6 carbon atoms may be 20 to 60% by volume with respect to the total amount of the hydrocarbon having 4 to 6 carbon atoms.
  • the content of normal paraffin having 4 to 6 carbon atoms may be 20% by volume or less with respect to the total amount of the hydrocarbon having 4 to 6 carbon atoms.
  • the content of the hydrocarbon having 4 to 6 carbon atoms may be 85% by volume or more.
  • a fuel composition for a lean burn engine capable of expanding the lean limit of the lean burn engine.
  • the fuel composition according to the present embodiment contains a hydrocarbon having 4 to 6 carbon atoms as a main component (for example, 50% by volume or more, preferably 60% by volume or more, more preferably 70% by volume or more, still more preferably 80% by volume or more. , More preferably 85% by volume or more).
  • a hydrocarbon having 4 to 6 carbon atoms as a main component (for example, 50% by volume or more, preferably 60% by volume or more, more preferably 70% by volume or more, still more preferably 80% by volume or more. , More preferably 85% by volume or more).
  • the aromatic content of the fuel composition is 25% by volume or less, preferably 20% by volume or less, more preferably 15% by volume or less, still more preferably 10% by volume or less, still more preferably 5% by volume. % Or less, more preferably 3% by volume or less, and particularly preferably 2% by volume or less.
  • the fuel composition according to the present embodiment contains hydrocarbons having 4 to 6 carbon atoms as a main component, and the aromatic content is set to a certain value or less, so that the lean limit of the lean burn engine can be expanded. It can be suitably used as a fuel composition for a lean burn engine (particularly for ultra-lean combustion having a lean limit of 2 or more).
  • the content of each component in the fuel composition is measured by the method described in JIS K 2536-2 "Petroleum products-component test method Part 2: How to obtain all components by gas chromatograph”. Indicates the value.
  • the aromatic content of the fuel composition may be, for example, 0.1% by volume or more, and may be 0.5% by volume or more.
  • the aromatic content of the fuel composition is 0.1 to 25% by volume, 0.1 to 20% by volume, 0.1 to 15% by volume, 0.1 to 10% by volume, and 0.1 to 5% by volume.
  • %, 0.1 to 3% by volume, 0.1 to 2% by volume 0.5 to 25% by volume, 0.5 to 20% by volume, 0.5 to 15% by volume, 0.5 to 10% by volume, It may be 0.5 to 5% by volume, 0.5 to 3% by volume, or 0.5 to 2% by volume.
  • Hydrocarbons having 4 to 6 carbon atoms include, for example, normal paraffin having 4 to 6 carbon atoms, isoparaffin having 4 to 6 carbon atoms, an olefin having 4 to 6 carbon atoms, and an aromatic compound (benzene) having 6 carbon atoms. May be included.
  • the content of normal paraffin having 4 to 6 carbon atoms may be, for example, 30% by volume or less, preferably 20% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. By volume or less, more preferably 15% by volume or less. As a result, the above effect tends to be obtained more remarkably.
  • the content of normal paraffin having 4 to 6 carbon atoms may be, for example, 0.5% by volume or more, or 1% by volume or more, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. 5% by volume or more is preferable, and 10% by volume or more is more preferable. As a result, the above effect tends to be obtained more remarkably. That is, the content of normal paraffin having 4 to 6 carbon atoms is 0.5 to 30% by volume, 0.5 to 20% by volume, and 0.5 to 15% of the total amount of hydrocarbons having 4 to 6 carbon atoms. Volume%, 1 to 30%, 1 to 20%, 1 to 15%, 5 to 30%, 5 to 20%, 5 to 15%, 10 to 30%, 10 to 20% , Or 10 to 15% by volume.
  • the content of isoparaffin having 4 to 6 carbon atoms may be, for example, 20% by volume or more, preferably 25% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. % Or more, more preferably 30% by volume or more, still more preferably 35% by volume or more. As a result, the above effect tends to be obtained more remarkably.
  • the content of isoparaffin having 4 to 6 carbon atoms may be, for example, 80% by volume or less, preferably 75% by volume or less, and more preferably 70% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. % Or less.
  • the content of isoparaffin having 4 to 6 carbon atoms may be 60% by volume or less, 50% by volume or less, or 45% by volume or less with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms. As a result, the above effect tends to be obtained more remarkably.
  • the content of isoparaffin having 4 to 6 carbon atoms is 20 to 80% by volume, 20 to 75% by volume, 20 to 70% by volume, and 20 to 60% by volume with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms.
  • % 20-50% by volume, 20-45% by volume, 25-80% by volume, 25-75% by volume, 25-70% by volume, 25-60% by volume, 25-50% by volume, 25-45% by volume, 30-80% by volume, 30-75% by volume, 30-70% by volume, 30-60% by volume, 30-50% by volume, 30-45% by volume, 35-80% by volume, 35-75% by volume, 35- It may be 70% by volume, 35-60% by volume, 35-50% by volume, or 35-45% by volume.
  • the content of the olefin having 4 to 6 carbon atoms may be, for example, 5% by volume or more, preferably 10 volumes by volume, based on the total amount of the hydrocarbons having 4 to 6 carbon atoms. % Or more, more preferably 20% by volume or more, still more preferably 25% by volume or more. Further, the content of the olefin having 4 to 6 carbon atoms may be 30% by volume or more, 35% by volume or more, or 40% by volume or more with respect to the total amount of the hydrocarbon having 4 to 6 carbon atoms. As a result, the above effect tends to be obtained more remarkably.
  • the content of the olefin having 4 to 6 carbon atoms may be, for example, 70% by volume or less, preferably 65% by volume or less, and more preferably 60% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. % Or less, more preferably 55% by volume or less, still more preferably 50% by volume or less, still more preferably 45% by volume or less. As a result, the above effect tends to be obtained more remarkably. That is, the content of the olefin having 4 to 6 carbon atoms is 5 to 70% by volume, 5 to 65% by volume, 5 to 60% by volume, and 5 to 55 volumes with respect to the total amount of the hydrocarbons having 4 to 6 carbon atoms.
  • % 30-45% by volume, 35-70% by volume, 35-65% by volume, 35-60% by volume, 35-55% by volume, 35-50% by volume, 35-45% by volume, 40-70% by volume, It may be 40 to 65% by volume, 40 to 60% by volume, 40 to 55% by volume, 40 to 50% by volume, or 40 to 45% by volume.
  • the total amount of normal paraffin having 4 to 6 carbon atoms, isoparaffin having 4 to 6 carbon atoms, and olefin having 4 to 6 carbon atoms is the total amount of hydrocarbons having 4 to 6 carbon atoms.
  • it is 50% by volume or more, preferably 70% by volume or more, more preferably 80% by volume or more, still more preferably 90% by volume or more, still more preferably 93% by volume or more.
  • the fuel composition according to this embodiment may contain a hydrocarbon having more than 6 carbon atoms.
  • the hydrocarbon having more than 6 carbon atoms may be, for example, a hydrocarbon having 7 to 15 carbon atoms, or may be a hydrocarbon having 7 to 10 carbon atoms.
  • the content of the hydrocarbon having more than 6 carbon atoms may be, for example, less than 50% by volume, preferably 40% by volume or less, more preferably 40% by volume or less, based on the total amount of the fuel composition. Is 30% by volume or less, more preferably 20% by volume or less, still more preferably 15% by volume or less.
  • the ratio of hydrocarbons having 4 to 6 carbon atoms to the total amount of hydrocarbons is, for example, 50% by volume or more, more preferably 60% by volume or more, and more preferably 70% by volume. As mentioned above, it is more preferably 80% by volume or more, further preferably 85% by volume or more, and even more preferably 90% by mass or more. Further, the ratio of hydrocarbons having 4 to 6 carbon atoms to the total amount of hydrocarbons may be 100% by volume or less, 98% by volume or less, or 95% by volume or less.
  • the ratio of hydrocarbons having 4 to 6 carbon atoms to the total amount of hydrocarbons is 50 to 100% by volume, 50 to 98% by volume, 50 to 95% by volume, 60 to 100% by volume, 60 to 98% by volume. 60-95% by volume, 70-100% by volume, 70-98% by volume, 70-95% by volume, 80-100% by volume, 80-98% by volume, 80-95% by volume, 85-100% by volume, 85- It may be 98% by volume, 85-95% by volume, 90-100% by volume, 90-98% by volume, or 90-95% by volume.
  • the fuel composition according to the present embodiment may further contain an oxygen-containing compound.
  • the oxygen-containing compound is an organic compound containing oxygen as a constituent element.
  • the oxygen-containing compound include an oxygen-containing heterocyclic compound, an oxygen-containing aromatic compound, and an oxygen-containing aliphatic compound.
  • the oxygen-containing compound one type may be used alone, or two or more types may be used in combination.
  • the oxygen-containing heterocyclic compound is a compound having an oxygen-containing heterocycle.
  • the oxygen-containing heterocyclic compound include compounds having an oxygen-containing heterocycle such as a furan ring, a tetrahydrofuran ring, an ethylene oxide ring, a propylene oxide ring, a pyran ring, a tetrahydropyran ring, a benzofuran ring, and a benzopyran ring.
  • a compound having a furan ring is preferable from the viewpoint of obtaining the above-mentioned effect more remarkably.
  • the compound having a furan ring include furan, 2-methylfuran and 2,5-dimethylfuran.
  • furan and 2-methylfuran are particularly preferable.
  • An oxygen-containing aromatic compound is a compound that contains oxygen as a constituent element and has an aromatic ring.
  • the oxygen-containing aromatic compound include aromatic compounds having an oxygen atom directly bonded to the aromatic ring (for example, alkoxybenzene, phenols, etc.).
  • alkoxybenzene include anisole, phenetol, propyloxybenzene and the like. As the alkoxybenzene, anisole and phenetol are preferable from the viewpoint of the boiling point range.
  • oxygen-containing aliphatic compound examples include alcohols, ethers (for example, ethyl alcohol, isobutyl alcohol, ETBE (ethyl-tert-butyl ether), etc.) and the like.
  • the content of the oxygen-containing compound may be, for example, less than 50% by volume, preferably 40% by volume or less, and more preferably 30% by volume, based on the total amount of the fuel composition. Below, it is more preferably 25% by volume or less.
  • the content thereof may be, for example, 1% by volume or more, and 3% by volume or more, based on the total amount of the fuel composition. It may be 5% by volume or more, or 10% by volume or more. That is, the content of the oxygen-containing compound is 0% by volume or more and less than 50% by volume, 0 to 40% by volume, 0 to 30% by volume, 0 to 25% by volume, 1% by volume or more with respect to the total amount of the fuel composition.
  • the fuel composition according to the present embodiment may further contain components other than the above.
  • Other components include, for example, cleaning dispersants, antioxidants, metal deactivators, surface ignition inhibitors, antifreeze agents, combustion improvers, antistatic agents, colorants, rust inhibitors, drainage agents, identification. Examples include agents, odorants, friction modifiers and the like.
  • the total content of these other components may be, for example, 1% by volume or less, preferably 0.5% by volume or less, and more preferably 0.1% by volume or less, based on the total amount of the fuel composition. Further, the total content of the other components may be, for example, 0.001% by volume or more, or 0.002% by volume or more, based on the total amount of the fuel composition.
  • the total contents of the above other components are 0 to 1% by volume, 0 to 0.5% by volume, 0 to 0.1% by volume, 0.001 to 1% by volume, 0.001 to 0.5. It may be 0.001 to 0.1% by volume, 0.002 to 1% by volume, 0.002 to 0.5% by volume, or 0.002 to 0.1% by volume.
  • a commonly used clean dispersant can be used.
  • a compound known as a gasoline clean dispersant such as succinateimide, polyalkylamine, and polyetheramine can be used.
  • the antioxidant include N, N'-diisopropyl-p-phenylenediamine, N, N'-diisobutyl-p-phenylenediamine, 2,6-di-t-butyl-4-methylphenol, and hindered phenol.
  • the metal inactivating agent include amine-carbonyl condensed compounds such as N, N'-disalicylidene-1,2-diaminopropane.
  • Examples of the surface ignition preventive agent include organic phosphorus compounds and the like.
  • Examples of the antifreeze agent include polyhydric alcohols and ethers thereof.
  • Examples of the combustion improver include alkali metal salts or alkaline earth metal salts of organic acids, higher alcohol sulfate esters, and the like.
  • Examples of the antistatic agent include anionic surfactants, cationic surfactants, amphoteric surfactants and the like.
  • Examples of the colorant include azo dyes and the like.
  • Examples of the rust preventive include organic carboxylic acids or derivatives thereof, alkenyl succinic acid esters, and the like.
  • Examples of the draining agent include sorbitan esters and the like.
  • Examples of the discriminating agent include kirizanin, coumarin and the like.
  • Examples of the odorant include natural essential oil synthetic fragrances and the like.
  • Examples of the friction modifier include a mixture of a higher carboxylic acid monoglyceride and a higher carboxy
  • Example 1 As the fuel composition, a fuel composition having the composition shown in Table 1 below was prepared. The composition of the fuel composition shows the value measured by JIS K 2536-2 "Petroleum products-Component test method Part 2: How to obtain all components by gas chromatography". Using the prepared fuel composition, the lean limit was measured by the following method. The results are shown in Table 1.
  • the lean limit was measured using the following test engine by changing the excess air ratio under the conditions of rotation speed 2000 rpm, shown mean effective pressure 800 kPa, and minimum advance ignition timing (MBT) at which torque is maximized.
  • the lean limit was the excess air rate at the point where the volatility of the indicated mean effective pressure exceeds 3%.
  • the excess air ratio is the air-fuel ratio of the air-fuel mixture at the time of the test divided by the stoichiometric air-fuel ratio of the fuel composition, and is the reciprocal of the equivalent ratio ⁇ .
  • Example 2 to 10 and Comparative Examples 1 to 3 The composition of the fuel composition was changed to the composition shown in Table 1, Table 2 or Table 3, and the lean limit was measured in the same manner as in Example 1. The results are shown in Table 1, Table 2 or Table 3.
  • Example 9 ethanol was used as the oxygen-containing compound, and in Example 10, 2-methylfuran was used as the oxygen-containing compound.
  • Comparative Example 1 is an example using high-octane gasoline, and the oxygen content in Comparative Example 1 indicates the content of the oxygen-containing compound contained in the high-octane gasoline.
  • saturated content indicates the content (% by volume) of saturated hydrocarbons
  • unsaturated content indicates the content (% by volume) of unsaturated hydrocarbons (excluding aromatic compounds).
  • Aromatic content indicates the content (volume%) of aromatic compounds
  • oxygen-containing content indicates the content (volume%) of oxygen-containing compounds
  • total indicates saturated hydrocarbons and unsaturated hydrocarbons. , The total content (% by volume) of aromatic compounds and oxygen-containing compounds is shown.
  • C4 to C6 hydrocarbon indicates the content (% by volume) of the hydrocarbon having 4 to 6 carbon atoms in the fuel composition
  • n-paraffin has 4 to 6 carbon atoms.
  • the content (% by volume) of normal paraffin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons is shown
  • “isoparaffin” is the content of isoparaffin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms (isoparaffin).
  • olefin indicates the content (% by volume) of the olefin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms
  • subtotal indicates the content of the olefin having 4 to 6 carbon atoms.
  • the total content (% by volume) of normal paraffin having 4 to 6 carbon atoms, isoparaffin having 4 to 6 carbon atoms, and olefin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons is shown.

Abstract

A lean burn engine-use fuel composition wherein the main component is a hydrocarbon having 4 to 6 carbons and the aromatic content is 25% by volume or lower.

Description

リーンバーンエンジン用燃料組成物Fuel composition for lean burn engine
　本発明は、リーンバーンエンジン用燃料組成物に関する。 The present invention relates to a fuel composition for a lean burn engine.
　従来から、理論空燃比より薄い混合気で燃料を燃焼させるリーンバーンエンジンが知られている。このようなリーンバーンエンジン用の燃料としては、例えば、特許文献１に、アルキレートガソリン、接触改質ガソリン、軽質接触分解ガソリン及びコーカーライトガソリンよりなる群から選ばれた１種以上のガソリンを配合したことを特徴とするリーンバーンエンジン用燃料組成物が開示されている。 Conventionally, a lean burn engine that burns fuel with an air-fuel mixture thinner than the stoichiometric air-fuel ratio has been known. As a fuel for such a lean burn engine, for example, Patent Document 1 contains one or more types of gasoline selected from the group consisting of alkylate gasoline, catalytically modified gasoline, light catalytic cracking gasoline, and coker light gasoline. A fuel composition for a lean burn engine characterized by the above is disclosed.
特開２００７－１８２５７９号公報JP-A-2007-182579
　リーンバーンエンジンにおいて、運転可能な空燃比（空気／燃料）の上限はリーン限界と称され、このリーン限界を拡大することで、燃費の向上、燃焼の安定化等が期待される。 In a lean burn engine, the upper limit of the air-fuel ratio (air / fuel) that can be operated is called the lean limit, and expanding this lean limit is expected to improve fuel efficiency and stabilize combustion.
　本発明は、リーンバーンエンジンのリーン限界を拡大させることが可能な、リーンバーンエンジン用燃料組成物を提供することを目的とする。 An object of the present invention is to provide a fuel composition for a lean burn engine capable of expanding the lean limit of the lean burn engine.
　本発明の一側面は、炭素数４～６の炭化水素を主成分とし、芳香族含有量が２５体積％以下である、リーンバーンエンジン用燃料組成物に関する。 One aspect of the present invention relates to a fuel composition for a lean burn engine, which contains a hydrocarbon having 4 to 6 carbon atoms as a main component and has an aromatic content of 25% by volume or less.
　一態様において、上記炭素数４～６の炭化水素の全量に対する、炭素数４～６のオレフィンの含有量は、２０～６０体積％であってよい。 In one embodiment, the content of the olefin having 4 to 6 carbon atoms may be 20 to 60% by volume with respect to the total amount of the hydrocarbon having 4 to 6 carbon atoms.
　一態様において、上記炭素数４～６の炭化水素の全量に対する、炭素数４～６のノルマルパラフィンの含有量は、２０体積％以下であってよい。 In one embodiment, the content of normal paraffin having 4 to 6 carbon atoms may be 20% by volume or less with respect to the total amount of the hydrocarbon having 4 to 6 carbon atoms.
　一態様においては、上記炭素数４～６の炭化水素の含有量が８５体積％以上であってよい。 In one embodiment, the content of the hydrocarbon having 4 to 6 carbon atoms may be 85% by volume or more.
　本発明によれば、リーンバーンエンジンのリーン限界を拡大させることが可能なリーンバーンエンジン用燃料組成物が提供される。 According to the present invention, there is provided a fuel composition for a lean burn engine capable of expanding the lean limit of the lean burn engine.
　以下、本発明の好適な実施形態について詳細に説明する。 Hereinafter, preferred embodiments of the present invention will be described in detail.
　本実施形態に係る燃料組成物は、炭素数４～６の炭化水素を主成分（例えば５０体積％以上、好ましくは６０体積％以上、より好ましくは７０体積％以上、更に好ましくは８０体積％以上、一層好ましくは８５体積％以上）とする燃料組成物である。 The fuel composition according to the present embodiment contains a hydrocarbon having 4 to 6 carbon atoms as a main component (for example, 50% by volume or more, preferably 60% by volume or more, more preferably 70% by volume or more, still more preferably 80% by volume or more. , More preferably 85% by volume or more).
　本実施形態において、燃料組成物の芳香族含有量は、２５体積％以下であり、好ましくは２０体積％以下、より好ましくは１５体積％以下、更に好ましくは１０体積％以下、一層好ましくは５体積％以下、より一層好ましくは３体積％以下、特に好ましくは２体積％以下である。 In the present embodiment, the aromatic content of the fuel composition is 25% by volume or less, preferably 20% by volume or less, more preferably 15% by volume or less, still more preferably 10% by volume or less, still more preferably 5% by volume. % Or less, more preferably 3% by volume or less, and particularly preferably 2% by volume or less.
　本実施形態に係る燃料組成物は、炭素数４～６の炭化水素を主成分としつつ、芳香族含有量を一定値以下としたことで、リーンバーンエンジンのリーン限界を拡大させることができ、リーンバーンエンジン用燃料組成物として（特に、リーン限界が２以上の超稀薄燃焼用として）好適に用いることができる。 The fuel composition according to the present embodiment contains hydrocarbons having 4 to 6 carbon atoms as a main component, and the aromatic content is set to a certain value or less, so that the lean limit of the lean burn engine can be expanded. It can be suitably used as a fuel composition for a lean burn engine (particularly for ultra-lean combustion having a lean limit of 2 or more).
　なお、本明細書中、燃料組成物における各成分の含有量は、ＪＩＳ　Ｋ　２５３６－２「石油製品－成分試験方法　第２部：ガスクロマトグラフによる全成分の求め方」に記載の方法で測定される値を示す。 In the present specification, the content of each component in the fuel composition is measured by the method described in JIS K 2536-2 "Petroleum products-component test method Part 2: How to obtain all components by gas chromatograph". Indicates the value.
　燃料組成物の芳香族含有量は、例えば０．１体積％以上であってよく、０．５体積％以上であってもよい。芳香族化合物を僅かに含有することで、ノッキングを抑制しつつ、容量当たりの発熱量をより上昇させるという効果が得られる。
　すなわち、燃料組成物の芳香族含有量は、０．１～２５体積％、０．１～２０体積％、０．１～１５体積％、０．１～１０体積％、０．１～５体積％、０．１～３体積％、０．１～２体積％、０．５～２５体積％、０．５～２０体積％、０．５～１５体積％、０．５～１０体積％、０．５～５体積％、０．５～３体積％、又は、０．５～２体積％であってよい。 The aromatic content of the fuel composition may be, for example, 0.1% by volume or more, and may be 0.5% by volume or more. By containing a small amount of aromatic compound, it is possible to obtain the effect of further increasing the calorific value per volume while suppressing knocking.
That is, the aromatic content of the fuel composition is 0.1 to 25% by volume, 0.1 to 20% by volume, 0.1 to 15% by volume, 0.1 to 10% by volume, and 0.1 to 5% by volume. %, 0.1 to 3% by volume, 0.1 to 2% by volume, 0.5 to 25% by volume, 0.5 to 20% by volume, 0.5 to 15% by volume, 0.5 to 10% by volume, It may be 0.5 to 5% by volume, 0.5 to 3% by volume, or 0.5 to 2% by volume.
　炭素数４～６の炭化水素には、例えば、炭素数４～６のノルマルパラフィン、炭素数４～６のイソパラフィン、炭素数４～６のオレフィン、炭素数６の芳香族化合物（ベンゼン）等が含まれていてよい。 Hydrocarbons having 4 to 6 carbon atoms include, for example, normal paraffin having 4 to 6 carbon atoms, isoparaffin having 4 to 6 carbon atoms, an olefin having 4 to 6 carbon atoms, and an aromatic compound (benzene) having 6 carbon atoms. May be included.
　本実施形態に係る燃料組成物において、炭素数４～６のノルマルパラフィンの含有量は、炭素数４～６の炭化水素の全量に対して、例えば３０体積％以下であってよく、好ましくは２０体積％以下、より好ましくは１５体積％以下である。これにより、上記効果がより顕著に得られる傾向がある。 In the fuel composition according to the present embodiment, the content of normal paraffin having 4 to 6 carbon atoms may be, for example, 30% by volume or less, preferably 20% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. By volume or less, more preferably 15% by volume or less. As a result, the above effect tends to be obtained more remarkably.
　また、炭素数４～６のノルマルパラフィンの含有量は、炭素数４～６の炭化水素の全量に対して、例えば０．５体積％以上であってよく、１体積％以上であってもよく、５体積％以上が好ましく、１０体積％以上がより好ましい。これにより、上記効果がより顕著に得られる傾向がある。
　すなわち、炭素数４～６のノルマルパラフィンの含有量は、炭素数４～６の炭化水素の全量に対して、０．５～３０体積％、０．５～２０体積％、０．５～１５体積％、１～３０体積％、１～２０体積％、１～１５体積％、５～３０体積％、５～２０体積％、５～１５体積％、１０～３０体積％、１０～２０体積％、又は、１０～１５体積％であってよい。 The content of normal paraffin having 4 to 6 carbon atoms may be, for example, 0.5% by volume or more, or 1% by volume or more, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. 5% by volume or more is preferable, and 10% by volume or more is more preferable. As a result, the above effect tends to be obtained more remarkably.
That is, the content of normal paraffin having 4 to 6 carbon atoms is 0.5 to 30% by volume, 0.5 to 20% by volume, and 0.5 to 15% of the total amount of hydrocarbons having 4 to 6 carbon atoms. Volume%, 1 to 30%, 1 to 20%, 1 to 15%, 5 to 30%, 5 to 20%, 5 to 15%, 10 to 30%, 10 to 20% , Or 10 to 15% by volume.
　本実施形態に係る燃料組成物において、炭素数４～６のイソパラフィンの含有量は、炭素数４～６の炭化水素の全量に対して、例えば２０体積％以上であってよく、好ましくは２５体積％以上、より好ましくは３０体積％以上、更に好ましくは３５体積％以上である。これにより、上記効果がより顕著に得られる傾向がある。 In the fuel composition according to the present embodiment, the content of isoparaffin having 4 to 6 carbon atoms may be, for example, 20% by volume or more, preferably 25% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. % Or more, more preferably 30% by volume or more, still more preferably 35% by volume or more. As a result, the above effect tends to be obtained more remarkably.
　また、炭素数４～６のイソパラフィンの含有量は、炭素数４～６の炭化水素の全量に対して、例えば８０体積％以下であってよく、好ましくは７５体積％以下、より好ましくは７０体積％以下である。また、炭素数４～６のイソパラフィンの含有量は、炭素数４～６の炭化水素の全量に対して、６０体積％以下、５０体積％以下、又は、４５体積％以下であってもよい。これにより、上記効果がより顕著に得られる傾向がある。
　すなわち、炭素数４～６のイソパラフィンの含有量は、炭素数４～６の炭化水素の全量に対して、２０～８０体積％、２０～７５体積％、２０～７０体積％、２０～６０体積％、２０～５０体積％、２０～４５体積％、２５～８０体積％、２５～７５体積％、２５～７０体積％、２５～６０体積％、２５～５０体積％、２５～４５体積％、３０～８０体積％、３０～７５体積％、３０～７０体積％、３０～６０体積％、３０～５０体積％、３０～４５体積％、３５～８０体積％、３５～７５体積％、３５～７０体積％、３５～６０体積％、３５～５０体積％、又は、３５～４５体積％であってよい。 The content of isoparaffin having 4 to 6 carbon atoms may be, for example, 80% by volume or less, preferably 75% by volume or less, and more preferably 70% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. % Or less. The content of isoparaffin having 4 to 6 carbon atoms may be 60% by volume or less, 50% by volume or less, or 45% by volume or less with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms. As a result, the above effect tends to be obtained more remarkably.
That is, the content of isoparaffin having 4 to 6 carbon atoms is 20 to 80% by volume, 20 to 75% by volume, 20 to 70% by volume, and 20 to 60% by volume with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms. %, 20-50% by volume, 20-45% by volume, 25-80% by volume, 25-75% by volume, 25-70% by volume, 25-60% by volume, 25-50% by volume, 25-45% by volume, 30-80% by volume, 30-75% by volume, 30-70% by volume, 30-60% by volume, 30-50% by volume, 30-45% by volume, 35-80% by volume, 35-75% by volume, 35- It may be 70% by volume, 35-60% by volume, 35-50% by volume, or 35-45% by volume.
　本実施形態に係る燃料組成物において、炭素数４～６のオレフィンの含有量は、炭素数４～６の炭化水素の全量に対して、例えば５体積％以上であってよく、好ましくは１０体積％以上、より好ましくは２０体積％以上、更に好ましくは２５体積％以上である。また、炭素数４～６のオレフィンの含有量は、炭素数４～６の炭化水素の全量に対して、３０体積％以上、３５体積％以上、又は、４０体積％以上であってもよい。これにより、上記効果がより顕著に得られる傾向がある。 In the fuel composition according to the present embodiment, the content of the olefin having 4 to 6 carbon atoms may be, for example, 5% by volume or more, preferably 10 volumes by volume, based on the total amount of the hydrocarbons having 4 to 6 carbon atoms. % Or more, more preferably 20% by volume or more, still more preferably 25% by volume or more. Further, the content of the olefin having 4 to 6 carbon atoms may be 30% by volume or more, 35% by volume or more, or 40% by volume or more with respect to the total amount of the hydrocarbon having 4 to 6 carbon atoms. As a result, the above effect tends to be obtained more remarkably.
　また、炭素数４～６のオレフィンの含有量は、炭素数４～６の炭化水素の全量に対して、例えば７０体積％以下であってよく、好ましくは６５体積％以下、より好ましくは６０体積％以下、更に好ましくは５５体積％以下、一層好ましくは５０体積％以下、より一層好ましくは４５体積％以下である。これにより、上記効果がより顕著に得られる傾向がある。
　すなわち、炭素数４～６のオレフィンの含有量は、炭素数４～６の炭化水素の全量に対して、５～７０体積％、５～６５体積％、５～６０体積％、５～５５体積％、５～５０体積％、５～４５体積％、１０～７０体積％、１０～６５体積％、１０～６０体積％、１０～５５体積％、１０～５０体積％、１０～４５体積％、２０～７０体積％、２０～６５体積％、２０～６０体積％、２０～５５体積％、２０～５０体積％、２０～４５体積％、２５～７０体積％、２５～６５体積％、２５～６０体積％、２５～５５体積％、２５～５０体積％、２５～４５体積％、３０～７０体積％、３０～６５体積％、３０～６０体積％、３０～５５体積％、３０～５０体積％、３０～４５体積％、３５～７０体積％、３５～６５体積％、３５～６０体積％、３５～５５体積％、３５～５０体積％、３５～４５体積％、４０～７０体積％、４０～６５体積％、４０～６０体積％、４０～５５体積％、４０～５０体積％、又は、４０～４５体積％であってよい。 The content of the olefin having 4 to 6 carbon atoms may be, for example, 70% by volume or less, preferably 65% by volume or less, and more preferably 60% by volume, based on the total amount of hydrocarbons having 4 to 6 carbon atoms. % Or less, more preferably 55% by volume or less, still more preferably 50% by volume or less, still more preferably 45% by volume or less. As a result, the above effect tends to be obtained more remarkably.
That is, the content of the olefin having 4 to 6 carbon atoms is 5 to 70% by volume, 5 to 65% by volume, 5 to 60% by volume, and 5 to 55 volumes with respect to the total amount of the hydrocarbons having 4 to 6 carbon atoms. %, 5 to 50% by volume, 5 to 45% by volume, 10 to 70% by volume, 10 to 65% by volume, 10 to 60% by volume, 10 to 55% by volume, 10 to 50% by volume, 10 to 45% by volume, 20-70% by volume, 20-65% by volume, 20-60% by volume, 20-55% by volume, 20-50% by volume, 20-45% by volume, 25-70% by volume, 25-65% by volume, 25- 60% by volume, 25-55% by volume, 25-50% by volume, 25-45% by volume, 30-70% by volume, 30-65% by volume, 30-60% by volume, 30-55% by volume, 30-50% by volume. %, 30-45% by volume, 35-70% by volume, 35-65% by volume, 35-60% by volume, 35-55% by volume, 35-50% by volume, 35-45% by volume, 40-70% by volume, It may be 40 to 65% by volume, 40 to 60% by volume, 40 to 55% by volume, 40 to 50% by volume, or 40 to 45% by volume.
　本実施形態に係る燃料組成物において、炭素数４～６のノルマルパラフィン、炭素数４～６のイソパラフィン及び炭素数４～６のオレフィンの合計量は、炭素数４～６の炭化水素の全量に対して、例えば５０体積％以上であり、好ましくは７０体積％以上、より好ましくは８０体積％以上、更に好ましくは９０体積％以上、一層好ましくは９３体積％以上である。これにより、上記効果がより顕著に得られる傾向がある。 In the fuel composition according to the present embodiment, the total amount of normal paraffin having 4 to 6 carbon atoms, isoparaffin having 4 to 6 carbon atoms, and olefin having 4 to 6 carbon atoms is the total amount of hydrocarbons having 4 to 6 carbon atoms. On the other hand, for example, it is 50% by volume or more, preferably 70% by volume or more, more preferably 80% by volume or more, still more preferably 90% by volume or more, still more preferably 93% by volume or more. As a result, the above effect tends to be obtained more remarkably.
　本実施形態に係る燃料組成物は、炭素数６を超える炭化水素を含んでいてもよい。炭素数６を超える炭化水素は、例えば炭素数７～１５の炭化水素であってよく、炭素数７～１０の炭化水素であってもよい。 The fuel composition according to this embodiment may contain a hydrocarbon having more than 6 carbon atoms. The hydrocarbon having more than 6 carbon atoms may be, for example, a hydrocarbon having 7 to 15 carbon atoms, or may be a hydrocarbon having 7 to 10 carbon atoms.
　本実施形態に係る燃料組成物において、炭素数６を超える炭化水素の含有量は、燃料組成物の全量に対して、例えば５０体積％未満であってよく、好ましくは４０体積％以下、より好ましくは３０体積％以下、更に好ましくは２０体積％以下、一層好ましくは１５体積％以下である。 In the fuel composition according to the present embodiment, the content of the hydrocarbon having more than 6 carbon atoms may be, for example, less than 50% by volume, preferably 40% by volume or less, more preferably 40% by volume or less, based on the total amount of the fuel composition. Is 30% by volume or less, more preferably 20% by volume or less, still more preferably 15% by volume or less.
　本実施形態に係る燃料組成物において、炭化水素の全量に占める炭素数４～６の炭化水素の割合は、例えば５０体積％以上であり、より好ましくは６０体積％以上、より好ましくは７０体積％以上、更に好ましくは８０体積％以上、一層好ましくは８５体積％以上、より一層好ましくは９０質量％以上である。また、炭化水素の全量に占める炭素数４～６の炭化水素の割合は、１００体積％以下であってよく、９８体積％以下であってもよく、９５体積％以下であってもよい。
　すなわち、炭化水素の全量に占める炭素数４～６の炭化水素の割合は、５０～１００体積％、５０～９８体積％、５０～９５体積％、６０～１００体積％、６０～９８体積％、６０～９５体積％、７０～１００体積％、７０～９８体積％、７０～９５体積％、８０～１００体積％、８０～９８体積％、８０～９５体積％、８５～１００体積％、８５～９８体積％、８５～９５体積％、９０～１００体積％、９０～９８体積％、又は、９０～９５体積％であってよい。 In the fuel composition according to the present embodiment, the ratio of hydrocarbons having 4 to 6 carbon atoms to the total amount of hydrocarbons is, for example, 50% by volume or more, more preferably 60% by volume or more, and more preferably 70% by volume. As mentioned above, it is more preferably 80% by volume or more, further preferably 85% by volume or more, and even more preferably 90% by mass or more. Further, the ratio of hydrocarbons having 4 to 6 carbon atoms to the total amount of hydrocarbons may be 100% by volume or less, 98% by volume or less, or 95% by volume or less.
That is, the ratio of hydrocarbons having 4 to 6 carbon atoms to the total amount of hydrocarbons is 50 to 100% by volume, 50 to 98% by volume, 50 to 95% by volume, 60 to 100% by volume, 60 to 98% by volume. 60-95% by volume, 70-100% by volume, 70-98% by volume, 70-95% by volume, 80-100% by volume, 80-98% by volume, 80-95% by volume, 85-100% by volume, 85- It may be 98% by volume, 85-95% by volume, 90-100% by volume, 90-98% by volume, or 90-95% by volume.
　本実施形態に係る燃料組成物は、含酸素化合物を更に含有していてもよい。 The fuel composition according to the present embodiment may further contain an oxygen-containing compound.
　含酸素化合物は、構成元素として酸素を含む有機化合物である。含酸素化合物としては、例えば、含酸素複素環式化合物、含酸素芳香族化合物、含酸素脂肪族化合物等が挙げられる。含酸素化合物は、一種を単独で用いてもよく、二種以上を組み合わせて用いてもよい。 The oxygen-containing compound is an organic compound containing oxygen as a constituent element. Examples of the oxygen-containing compound include an oxygen-containing heterocyclic compound, an oxygen-containing aromatic compound, and an oxygen-containing aliphatic compound. As the oxygen-containing compound, one type may be used alone, or two or more types may be used in combination.
　含酸素複素環式化合物は、含酸素複素環を有する化合物である。含酸素複素環式化合物としては、例えば、フラン環、テトラヒドロフラン環、エチレンオキシド環、プロピレンオキシド環、ピラン環、テトラヒドロピラン環、ベンゾフラン環、ベンゾピラン環等の含酸素複素環を有する化合物が挙げられる。含酸素複素環式化合物としては、上記効果がより顕著に得られる観点から、フラン環を有する化合物が好ましい。フラン環を有する化合物としては、例えば、フラン、２－メチルフラン、２，５－ジメチルフランが挙げられる。フラン環を有する化合物としては、フラン、２－メチルフランが特に好ましい。 The oxygen-containing heterocyclic compound is a compound having an oxygen-containing heterocycle. Examples of the oxygen-containing heterocyclic compound include compounds having an oxygen-containing heterocycle such as a furan ring, a tetrahydrofuran ring, an ethylene oxide ring, a propylene oxide ring, a pyran ring, a tetrahydropyran ring, a benzofuran ring, and a benzopyran ring. As the oxygen-containing heterocyclic compound, a compound having a furan ring is preferable from the viewpoint of obtaining the above-mentioned effect more remarkably. Examples of the compound having a furan ring include furan, 2-methylfuran and 2,5-dimethylfuran. As the compound having a furan ring, furan and 2-methylfuran are particularly preferable.
　含酸素芳香族化合物は、構成元素として酸素を含み、芳香環を有する化合物である。含酸素芳香族化合物としては、例えば、芳香環に直接結合する酸素原子を有する芳香族化合物（例えば、アルコキシベンゼン、フェノール類等）等が挙げられる。アルコキシベンゼンとしては、例えば、アニソール、フェネトール、プロピルオキシベンゼン等が挙げられる。アルコキシベンゼンとしては、沸点範囲の観点から、アニソール及びフェネトールが好ましい。 An oxygen-containing aromatic compound is a compound that contains oxygen as a constituent element and has an aromatic ring. Examples of the oxygen-containing aromatic compound include aromatic compounds having an oxygen atom directly bonded to the aromatic ring (for example, alkoxybenzene, phenols, etc.). Examples of alkoxybenzene include anisole, phenetol, propyloxybenzene and the like. As the alkoxybenzene, anisole and phenetol are preferable from the viewpoint of the boiling point range.
　含酸素脂肪族化合物としては、例えば、アルコール類、エーテル類（例えば、エチルアルコール、イソブチルアルコール、ＥＴＢＥ（エチル－ｔｅｒｔ－ブチルエーテル）等）等が挙げられる。 Examples of the oxygen-containing aliphatic compound include alcohols, ethers (for example, ethyl alcohol, isobutyl alcohol, ETBE (ethyl-tert-butyl ether), etc.) and the like.
　本実施形態に係る燃料組成物において、含酸素化合物の含有量は、燃料組成物の全量に対して、例えば５０体積％未満であってよく、好ましくは４０体積％以下、より好ましくは３０体積％以下、更に好ましくは２５体積％以下である。 In the fuel composition according to the present embodiment, the content of the oxygen-containing compound may be, for example, less than 50% by volume, preferably 40% by volume or less, and more preferably 30% by volume, based on the total amount of the fuel composition. Below, it is more preferably 25% by volume or less.
　また、本実施形態に係る燃料組成物が含酸素化合物を含有するとき、その含有量は、燃料組成物の全量に対して、例えば１体積％以上であってよく、３体積％以上であってもよく、５体積％以上であってもよく、１０体積％以上であってもよい。
　すなわち、含酸素化合物の含有量は、燃料組成物の全量に対して、０体積％以上５０体積％未満、０～４０体積％、０～３０体積％、０～２５体積％、１体積％以上５０体積％未満、１～４０体積％、１～３０体積％、１～２５体積％、３体積％以上５０体積％未満、３～４０体積％、３～３０体積％、３～２５体積％、５体積％以上５０体積％未満、５～４０体積％、５～３０体積％、５～２５体積％、１０体積％以上５０体積％未満、１０～４０体積％、１０～３０体積％、又は、１０～２５体積％であってよい。 When the fuel composition according to the present embodiment contains an oxygen-containing compound, the content thereof may be, for example, 1% by volume or more, and 3% by volume or more, based on the total amount of the fuel composition. It may be 5% by volume or more, or 10% by volume or more.
That is, the content of the oxygen-containing compound is 0% by volume or more and less than 50% by volume, 0 to 40% by volume, 0 to 30% by volume, 0 to 25% by volume, 1% by volume or more with respect to the total amount of the fuel composition. Less than 50% by volume, 1 to 40% by volume, 1 to 30% by volume, 1 to 25% by volume, 3% by volume or more and less than 50% by volume, 3 to 40% by volume, 3 to 30% by volume, 3 to 25% by volume, 5% or more and less than 50%, 5-40%, 5-30%, 5-25%, 10% or more and less than 50%, 10-40%, 10-30%, or It may be 10 to 25% by volume.
　本実施形態に係る燃料組成物は、上記以外の他の成分を更に含有していてもよい。他の成分としては、例えば、清浄分散剤、酸化防止剤、金属不活性化剤、表面着火防止剤、氷結防止剤、助燃剤、帯電防止剤、着色剤、防錆剤、水抜き剤、識別剤、着臭剤、摩擦調整剤等が挙げられる。これらの他の成分の合計含有量は、燃料組成物の全量に対して、例えば１体積％以下であってよく、０．５体積％以下が好ましく、０．１体積％以下がより好ましい。また、上記の他の成分の合計含有量は、燃料組成物の総量に対して、例えば０．００１体積％以上であってよく、０．００２体積％以上であってもよい。
　すなわち、上記の他の成分の合計含有量は、０～１体積％、０～０．５体積％、０～０．１体積％、０．００１～１体積％、０．００１～０．５体積％、０．００１～０．１体積％、０．００２～１体積％、０．００２～０．５体積％、又は、０．００２～０．１体積％であってよい。 The fuel composition according to the present embodiment may further contain components other than the above. Other components include, for example, cleaning dispersants, antioxidants, metal deactivators, surface ignition inhibitors, antifreeze agents, combustion improvers, antistatic agents, colorants, rust inhibitors, drainage agents, identification. Examples include agents, odorants, friction modifiers and the like. The total content of these other components may be, for example, 1% by volume or less, preferably 0.5% by volume or less, and more preferably 0.1% by volume or less, based on the total amount of the fuel composition. Further, the total content of the other components may be, for example, 0.001% by volume or more, or 0.002% by volume or more, based on the total amount of the fuel composition.
That is, the total contents of the above other components are 0 to 1% by volume, 0 to 0.5% by volume, 0 to 0.1% by volume, 0.001 to 1% by volume, 0.001 to 0.5. It may be 0.001 to 0.1% by volume, 0.002 to 1% by volume, 0.002 to 0.5% by volume, or 0.002 to 0.1% by volume.
　清浄分散剤としては、通常使用される清浄分散剤を用いることができ、例えば、コハク酸イミド、ポリアルキルアミン、ポリエーテルアミンなどのガソリン清浄分散剤として公知の化合物を用いることができる。酸化防止剤としては、例えば、Ｎ，Ｎ’－ジイソプロピル－ｐ－フェニレンジアミン、Ｎ，Ｎ’－ジイソブチル－ｐ－フェニレンジアミン、２，６－ジ－ｔ－ブチル－４－メチルフェノール、ヒンダードフェノール類等が挙げられる。金属不活性化剤としては、例えば、Ｎ，Ｎ’－ジサリチリデン－１，２－ジアミノプロパンのようなアミンカルボニル縮合化合物等が挙げられる。表面着火防止剤としては、例えば、有機リン系化合物等が挙げられる。氷結防止剤としては、例えば、多価アルコール又はそのエーテル等が挙げられる。助燃剤としては、例えば、有機酸のアルカリ金属塩又はアルカリ土類金属塩、高級アルコール硫酸エステル等が挙げられる。帯電防止剤としては、例えば、アニオン系界面活性剤、カチオン系界面活性剤、両性界面活性剤等が挙げられる。着色剤としては、例えば、アゾ染料等が挙げられる。防錆剤としては、例えば、有機カルボン酸又はその誘導体類、アルケニルコハク酸エステル等が挙げられる。水抜き剤としては、例えば、ソルビタンエステル類等が挙げられる。識別剤としては、例えば、キリザニン、クマリン等が挙げられる。着臭剤としては、例えば、天然精油合成香料等が挙げられる。摩擦調整剤としては、例えば、高級カルボン酸モノグリセリド及び高級カルボン酸のアミド化合物の混合物等が挙げられる。 As the clean dispersant, a commonly used clean dispersant can be used. For example, a compound known as a gasoline clean dispersant such as succinateimide, polyalkylamine, and polyetheramine can be used. Examples of the antioxidant include N, N'-diisopropyl-p-phenylenediamine, N, N'-diisobutyl-p-phenylenediamine, 2,6-di-t-butyl-4-methylphenol, and hindered phenol. Kind and the like. Examples of the metal inactivating agent include amine-carbonyl condensed compounds such as N, N'-disalicylidene-1,2-diaminopropane. Examples of the surface ignition preventive agent include organic phosphorus compounds and the like. Examples of the antifreeze agent include polyhydric alcohols and ethers thereof. Examples of the combustion improver include alkali metal salts or alkaline earth metal salts of organic acids, higher alcohol sulfate esters, and the like. Examples of the antistatic agent include anionic surfactants, cationic surfactants, amphoteric surfactants and the like. Examples of the colorant include azo dyes and the like. Examples of the rust preventive include organic carboxylic acids or derivatives thereof, alkenyl succinic acid esters, and the like. Examples of the draining agent include sorbitan esters and the like. Examples of the discriminating agent include kirizanin, coumarin and the like. Examples of the odorant include natural essential oil synthetic fragrances and the like. Examples of the friction modifier include a mixture of a higher carboxylic acid monoglyceride and a higher carboxylic acid amide compound.
　以上、本発明の好適な実施形態について説明したが、本発明は上記実施形態に限定されるものではない。 Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.
　以下、実施例によって本発明を更に詳細に説明するが、本発明はこれらの実施例に限定されるものではない。 Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.
（実施例１）
　燃料組成物として、下記表１に示す組成の燃料組成物を準備した。なお、燃料組成物の組成は、ＪＩＳ　Ｋ　２５３６－２「石油製品－成分試験方法　第２部：ガスクロマトグラフによる全成分の求め方」により測定された値を示す。準備した燃料組成物を用いて、以下の方法でリーン限界の測定を行った。結果を表１に示す。 (Example 1)
As the fuel composition, a fuel composition having the composition shown in Table 1 below was prepared. The composition of the fuel composition shows the value measured by JIS K 2536-2 "Petroleum products-Component test method Part 2: How to obtain all components by gas chromatography". Using the prepared fuel composition, the lean limit was measured by the following method. The results are shown in Table 1.
＜リーン限界の測定＞
　リーン限界は、下記の試験エンジンを使用し、回転数２０００ｒｐｍ、図示平均有効圧力８００ｋＰａ、トルク最大となる最小進角点火時期（ＭＢＴ）の条件下で空気過剰率を変更することで測定した。リーン限界は、図示平均有効圧力の変動率が３％を超える点における空気過剰率とした。なお、空気過剰率とは試験時の混合気の空燃比を燃料組成物の理論空燃比で除したものであり、当量比φの逆数となる。
（試験エンジン）
　エンジン：単気筒
　排気量：５６３ｃｃ
　噴射方式：ポート噴射式 <Measurement of lean limit>
The lean limit was measured using the following test engine by changing the excess air ratio under the conditions of rotation speed 2000 rpm, shown mean effective pressure 800 kPa, and minimum advance ignition timing (MBT) at which torque is maximized. The lean limit was the excess air rate at the point where the volatility of the indicated mean effective pressure exceeds 3%. The excess air ratio is the air-fuel ratio of the air-fuel mixture at the time of the test divided by the stoichiometric air-fuel ratio of the fuel composition, and is the reciprocal of the equivalent ratio φ.
(Test engine)
Engine: Single cylinder Displacement: 563cc
Injection method: Port injection type
（実施例２～１０及び比較例１～３）
　燃料組成物の組成を表１、表２又は表３に示す組成に変更し、実施例１と同様にリーン限界の測定を行った。結果を表１、表２又は表３に示す。なお、実施例９では含酸素化合物としてエタノールを用い、実施例１０では含酸素化合物として２－メチルフランを用いた。また、比較例１はハイオクガソリンを用いた例であり、比較例１における含酸素分はハイオクガソリンが含有する含酸素化合物の含有量を示す。 (Examples 2 to 10 and Comparative Examples 1 to 3)
The composition of the fuel composition was changed to the composition shown in Table 1, Table 2 or Table 3, and the lean limit was measured in the same manner as in Example 1. The results are shown in Table 1, Table 2 or Table 3. In Example 9, ethanol was used as the oxygen-containing compound, and in Example 10, 2-methylfuran was used as the oxygen-containing compound. Further, Comparative Example 1 is an example using high-octane gasoline, and the oxygen content in Comparative Example 1 indicates the content of the oxygen-containing compound contained in the high-octane gasoline.
　表中、「飽和分」は飽和炭化水素の含有量（体積％）を示し、「不飽和分」は不飽和炭化水素（但し、芳香族化合物は除く）の含有量（体積％）を示し、「芳香族分」は芳香族化合物の含有量（体積％）を示し、「含酸素分」は含酸素化合物の含有量（体積％）を示し、「合計」は飽和炭化水素、不飽和炭化水素、芳香族化合物及び含酸素化合物の合計含有量（体積％）を示す。 In the table, "saturated content" indicates the content (% by volume) of saturated hydrocarbons, and "unsaturated content" indicates the content (% by volume) of unsaturated hydrocarbons (excluding aromatic compounds). "Aromatic content" indicates the content (volume%) of aromatic compounds, "oxygen-containing content" indicates the content (volume%) of oxygen-containing compounds, and "total" indicates saturated hydrocarbons and unsaturated hydrocarbons. , The total content (% by volume) of aromatic compounds and oxygen-containing compounds is shown.
　また、表中、「Ｃ４～Ｃ６炭化水素」は、燃料組成物中の炭素数４～６の炭化水素の含有量（体積％）を示し、「ｎ－パラフィン」は、炭素数４～６の炭化水素の全量に対する炭素数４～６のノルマルパラフィンの含有量（体積％）を示し、「イソパラフィン」は、炭素数４～６の炭化水素の全量に対する炭素数４～６のイソパラフィンの含有量（体積％）を示し、「オレフィン」は、炭素数４～６の炭化水素の全量に対する炭素数４～６のオレフィンの含有量（体積％）を示し、「小計」は、炭素数４～６の炭化水素の全量に対する、炭素数４～６のノルマルパラフィン、炭素数４～６のイソパラフィン及び炭素数４～６のオレフィンの合計含有量（体積％）を示す。 Further, in the table, "C4 to C6 hydrocarbon" indicates the content (% by volume) of the hydrocarbon having 4 to 6 carbon atoms in the fuel composition, and "n-paraffin" has 4 to 6 carbon atoms. The content (% by volume) of normal paraffin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons is shown, and "isoparaffin" is the content of isoparaffin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms (isoparaffin). By volume%), "olefin" indicates the content (% by volume) of the olefin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons having 4 to 6 carbon atoms, and "subtotal" indicates the content of the olefin having 4 to 6 carbon atoms. The total content (% by volume) of normal paraffin having 4 to 6 carbon atoms, isoparaffin having 4 to 6 carbon atoms, and olefin having 4 to 6 carbon atoms with respect to the total amount of hydrocarbons is shown.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003

Claims (4)

  1. 　炭素数４～６の炭化水素を主成分とし、
    　芳香族含有量が２５体積％以下である、リーンバーンエンジン用燃料組成物。     Mainly composed of hydrocarbons with 4 to 6 carbon atoms
    A fuel composition for a lean burn engine having an aromatic content of 25% by volume or less.
  2. 　前記炭素数４～６の炭化水素の全量に対する、炭素数４～６のオレフィンの含有量が、２０～６０体積％である、請求項１に記載のリーンバーンエンジン用燃料組成物。 The fuel composition for a lean burn engine according to claim 1, wherein the content of the olefin having 4 to 6 carbon atoms is 20 to 60% by volume with respect to the total amount of the hydrocarbons having 4 to 6 carbon atoms.
  3. 　前記炭素数４～６の炭化水素の全量に対する、炭素数４～６のノルマルパラフィンの含有量が、２０体積％以下である、請求項１又は２に記載のリーンバーンエンジン用燃料組成物。 The fuel composition for a lean burn engine according to claim 1 or 2, wherein the content of normal paraffin having 4 to 6 carbon atoms is 20% by volume or less with respect to the total amount of the hydrocarbons having 4 to 6 carbon atoms.
  4. 　前記炭素数４～６の炭化水素の含有量が８５体積％以上である、請求項１～３のいずれか一項に記載のリーンバーンエンジン用燃料組成物。 The fuel composition for a lean burn engine according to any one of claims 1 to 3, wherein the content of the hydrocarbon having 4 to 6 carbon atoms is 85% by volume or more.
PCT/JP2020/027879 2019-07-31 2020-07-17 Lean burn engine-use fuel composition WO2021020181A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/609,523 US20220228078A1 (en) 2019-07-31 2020-07-17 Fuel composition for lean burn engine
EP20847429.6A EP3957707A4 (en) 2019-07-31 2020-07-17 Lean burn engine-use fuel composition
CN202080053241.6A CN114174475B (en) 2019-07-31 2020-07-17 Fuel composition for lean-burn engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019140862A JP7300923B2 (en) 2019-07-31 2019-07-31 Fuel composition for lean burn engine
JP2019-140862 2019-07-31

Publications (1)

Publication Number Publication Date
WO2021020181A1 true WO2021020181A1 (en) 2021-02-04

Family

ID=74230255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/027879 WO2021020181A1 (en) 2019-07-31 2020-07-17 Lean burn engine-use fuel composition

Country Status (5)

Country Link
US (1) US20220228078A1 (en)
EP (1) EP3957707A4 (en)
JP (1) JP7300923B2 (en)
CN (1) CN114174475B (en)
WO (1) WO2021020181A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07188678A (en) * 1993-12-27 1995-07-25 Tonen Corp Gasoline composition
JP2000073074A (en) * 1998-08-30 2000-03-07 Nippon Mitsubishi Oil Corp Unleaded gasoline
JP2007182579A (en) 2007-02-02 2007-07-19 Jomo Technical Research Center Co Ltd Method for producing fuel composition for lean burn engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08127783A (en) * 1994-11-01 1996-05-21 Cosmo Sogo Kenkyusho:Kk Lead-free gasoline
JP4855003B2 (en) 2004-08-19 2012-01-18 Ｊｘ日鉱日石エネルギー株式会社 Gasoline composition and method for producing the same
JP4633409B2 (en) 2004-08-30 2011-02-16 Ｊｘ日鉱日石エネルギー株式会社 Gasoline composition
JP2011241406A (en) 2011-09-06 2011-12-01 Jx Nippon Oil & Energy Corp Environmentally friendly gasoline composition, and method of manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07188678A (en) * 1993-12-27 1995-07-25 Tonen Corp Gasoline composition
JP2000073074A (en) * 1998-08-30 2000-03-07 Nippon Mitsubishi Oil Corp Unleaded gasoline
JP2007182579A (en) 2007-02-02 2007-07-19 Jomo Technical Research Center Co Ltd Method for producing fuel composition for lean burn engine

Also Published As

Publication number Publication date
EP3957707A4 (en) 2022-12-21
EP3957707A1 (en) 2022-02-23
CN114174475A (en) 2022-03-11
JP2021024875A (en) 2021-02-22
US20220228078A1 (en) 2022-07-21
CN114174475B (en) 2023-09-22
JP7300923B2 (en) 2023-06-30

Similar Documents

Publication Publication Date Title
ES2212545T3 (en) USE OF AN ADDITIVE IN A FUEL COMPOSITION.
JP5432521B2 (en) Gasoline composition
JP2009167398A (en) Fuel for premixed compression self-ignition engine
JP2005187520A (en) Ethanol-containing gasoline
JP5432520B2 (en) Gasoline composition
JP5432512B2 (en) Gasoline composition
JP5432511B2 (en) Gasoline composition
JP2009501831A (en) Heavy oil fuel
JP5432508B2 (en) Gasoline composition
JP5432519B2 (en) Gasoline composition
WO2021020181A1 (en) Lean burn engine-use fuel composition
CN105339472B (en) Unleaded gas preparation comprising mesitylene and pseudocumene
JP5847750B2 (en) Fuel oil composition
JP2021155625A (en) Fuel composition for lean-burn engine
JP2021155627A (en) Fuel composition for lean-burn engine
JP2021155626A (en) Fuel composition for lean-burn engine
JP2022032835A (en) Fuel composition for lean-burn engines
JP2022032834A (en) Fuel composition for lean-burn engines
JP5383618B2 (en) Fuel composition for supercharged engines
JPH10121064A (en) Unleaded gasoline
JP6887359B2 (en) Gasoline composition for lean burn engine
JP2023055488A (en) Fuel composition for lean-burn engine
TWI572707B (en) Composition of gasoline octane booster and gasoline octane booster
JP2019065216A (en) Gasoline composition for lean burn engines
JP5383619B2 (en) Fuel composition for supercharged engines

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20847429

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 20847429

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2020847429

Country of ref document: EP

Effective date: 20211115

NENP Non-entry into the national phase

Ref country code: DE