JP2011032453A - Gasoline composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gasoline composition having an excellent fuel consumption (fuel economy). <P>SOLUTION: The gasoline composition has a total naphthene content/total paraffin content of 0.3-8.0, a research method octane number (RON) of ≥89.0, a motor method octane number (MON) of ≥80.0 and a Reid vapor pressure (RVP) of 50-93 kPa. Wherein, the total naphthene content/total paraffin content is a ratio of a total naphthene component content (vol.%) and a total paraffin component content (vol.%). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a gasoline composition as a fuel for automobiles, and relates to a gasoline composition excellent in fuel consumption rate (fuel consumption).

  Due to the recent increase in awareness of environmental issues, it has been required to reduce automobile exhaust gas, and the relationship between fuel properties and automobile exhaust gas has been studied. As a result, advanced exhaust gas purification systems are being developed and adopted on the automobile side. Moreover, in the examination on the fuel side, it is known that a heavy fuel or a fuel having a high sulfur content adversely affects the exhaust gas (see, for example, Non-Patent Document 1 and Non-Patent Document 2). On the other hand, as one of the measures to reduce carbon dioxide emissions that cause global warming, automobiles with excellent fuel consumption (fuel consumption) are required, and at the same time, the fuel side has excellent fuel consumption (fuel consumption). ) Is required.

Kameoka et al., “Automotive Technology Society Academic Lecture Preprints”, Automotive Technology Association, 1998, No. 88-98, 9838985 "Gasoline Vehicle Working Group JCAP Results Report (2) Effects of Automobile Technology and Fuel Properties on Gasoline Vehicles on Emissions, JCAP Results Presentation (Tokyo International Forum)", Petroleum Industry Activation Center JCAP Promotion Office, 1998 September 30,

  The present invention provides a gasoline composition that has a fuel consumption rate (fuel consumption) superior to that of conventional gasoline and can reduce carbon dioxide emissions in order to reduce environmental impact.

  As a result of intensive studies on the above problems, the present inventors have an excellent fuel consumption rate (fuel consumption) when using a gasoline composition having a specific composition ratio in gasoline within a certain range, It has been found that the emission of carbon dioxide can be reduced, and the present invention has been completed.

That is, the present invention has a total naphthene content / total paraffin content of 0.3 to 8.0, a research method octane number (RON) of 89.0 or more, a motor method octane number (MON) of 80.0 or more, and a reed vapor pressure ( RVP) is related to a gasoline composition characterized by 50-93 kPa.
(Here, the total naphthene content / total paraffin content indicates the ratio of the total naphthene content (volume%) to the total paraffin content (volume%).)
In the present invention, the 10 vol% distillation temperature (T10) is 35 to 70 ° C, the 50 vol% distillation temperature (T50) is 75 to 110 ° C, and the 90 vol% distillation temperature (T90) is 175 as distillation properties. It relates to the gasoline composition as described above, characterized in that it is not higher than ° C.

  The gasoline composition of the present invention has an excellent fuel consumption rate (fuel consumption) as a fuel for automobiles, and can reduce carbon dioxide emissions.

Hereinafter, the present invention will be described in detail.
The gasoline composition of the present invention has a total naphthene content / total paraffin content of 0.3 to 8.0, a research octane number (RON) of 89 or more, a motor octane number (MON) of 80 or more, and a reed vapor pressure (RVP). Is 50 to 93 kPa. The term “total naphthene content / total paraffin content” as used herein refers to the ratio of the total naphthene content (volume%) to the total paraffin content (volume%) in the gasoline composition.

If the total naphthene content / total paraffin content is less than 0.3, the fuel consumption per capacity calorific value is lowered and carbon dioxide emissions may be increased. This is not preferable, and the lower limit of the range is preferably 0.35 or more. .40 or more is more preferable. Furthermore, if the total naphthene content / total paraffin content exceeds 8.0, the composition (total aromatic content, total naphthene content, total paraffin content, total olefin content) will be out of balance and the desired properties of gasoline will not be maintained. Since there is a possibility that the standard specified in JIS K 2202 (automobile gasoline) may not be satisfied, the upper limit of the range is preferably 7.8 or less, and more preferably 7.0 or less.
The total aromatic content, total naphthene content, total paraffin content, and total olefin content mentioned here are the aromatic content (volume%) in gasoline as measured by JIS K 2536 "Petroleum products-component test method". , Naphthene content (volume%), paraffin content (volume%), olefin content (volume%).

The research octane number (RON) of the gasoline composition of the present invention is required to be 89.0 or more from the viewpoint of preventing knocking and improving drivability, and is preferably 90.0 or more. Further, from the viewpoint of preventing deterioration of the anti-knocking performance at high speed, the motor method octane number (MON) needs to be 80.0 or more, preferably 81.0 or more.
When knocking occurs during traveling, the knock sensor is detected by a knock sensor in the current commercial vehicle, and knocking is avoided by retarding the ignition timing. However, when such avoidance control is performed, the thermal efficiency of the engine decreases and the fuel consumption rate deteriorates. Therefore, it is desirable to adjust RON and MON within a range in which knocking can be prevented.
The research method octane number (RON) and the motor method octane number (MON) as used herein mean the research method octane number and the motor method octane number measured by JIS K 2280 “Testing method for octane number and cetane number”.

The lead vapor pressure (RVP) of the gasoline composition of the present invention needs to be adjusted to 50 to 93 kPa depending on the season and region in which the gasoline composition is used. In this case, the upper limit value is preferable in more detail from the viewpoint of reducing fuel evaporation emission that contributes to air pollution and preventing deficiencies in drivability due to vapor lock, and the lower limit value from the viewpoint of ensuring startability at low temperatures. The range needs to be adjusted. More specifically, in summer (May to September), the lower limit value of RVP is preferably 50 kPa or more, more preferably 55 kPa, still more preferably 60 kPa or more, and the upper limit value is preferably 65 kPa or less. . On the other hand, in winter (October to April), the lower limit value of RVP is preferably 55 kPa or more, more preferably 60 kPa or more, still more preferably 65 kPa or more, even more preferably 70 kPa or more, and the upper limit value is preferably 93 kPa. Hereinafter, it is more preferably 85 kPa or less, and still more preferably 78 kPa or less.
The vapor pressure (RVP) here refers to a value (kPa) measured according to JIS K 2258 “Crude oil and petroleum products—How to obtain vapor pressure (Lead method)”.

The sulfur content of the gasoline composition of the present invention is not particularly limited, but is preferably 10 ppm by mass or less, more preferably 8 ppm by mass or less, and further preferably 5 ppm by mass or less. If the sulfur content exceeds 10 ppm by mass, the performance of the exhaust gas treatment catalyst may be adversely affected, the concentration of NOx, CO, and HC in the exhaust gas may increase, and the amount of benzene emitted also increases. there is a possibility.
The sulfur content here means a value (mass ppm) measured by JIS K 2541 “Crude oil and petroleum products—Sulfur content test method”.

The distillation properties of the gasoline composition of the present invention are preferably as follows. The distillation property as used herein means a distillation property measured by JIS K 2254 “Petroleum products—Distillation test method”.
First distillation point (IBP): 20-37 ° C
10 volume% distillation temperature (T10): 35-70 degreeC
50 volume% distillation temperature (T50): 75-110 degreeC
70% by volume distillation temperature (T70): 135 ° C. or less 90% by volume distillation temperature (T90): 175 ° C. or less Distillation end point (EP): 215 ° C. or less

IBP is preferably 20 ° C. or higher, more preferably 23 ° C. or higher, and further preferably 25 ° C. or higher. When IBP is less than 20 ° C., hydrocarbons in the exhaust gas may increase. On the other hand, IBP is preferably 37 ° C. or lower, more preferably 35 ° C. or lower, and further preferably 33 ° C. or lower. When IBP exceeds 37 ° C., low temperature drivability may be reduced.
T10 is preferably 35 ° C. or higher, more preferably 40 ° C. or higher, and further preferably 45 ° C. or higher. When T10 is less than 35 ° C., hydrocarbons in the exhaust gas may increase, and high temperature operability may decrease due to vapor lock. On the other hand, T10 is preferably 70 ° C. or lower, more preferably 65 ° C. or lower, further preferably 60 ° C. or lower, and most preferably 55 ° C. or lower. When T10 exceeds 70 ° C, the low temperature startability may be reduced.

T50 is preferably 75 ° C. or higher, more preferably 80 ° C. or higher, and still more preferably 85 ° C. or higher. When T50 is less than 75 ° C., fuel consumption may be reduced. On the other hand, T50 is preferably 110 ° C. or lower, more preferably 100 ° C. or lower, and further preferably 95 ° C. or lower. When T50 exceeds 110 ° C., the normal temperature drivability may be deteriorated.
T70 is preferably 135 ° C. or lower, more preferably 130 ° C. or lower, and further preferably 125 ° C. or lower. When T70 exceeds 135 ° C., the medium / low temperature operability during cold operation may decrease, and there may be an increase in hydrocarbons in exhaust gas, an increase in intake valve deposits, and an increase in combustion chamber deposits. .

T90 is preferably 175 from the viewpoint of preventing phenomena such as deterioration of low temperature and normal temperature drivability during cold operation, increase in dilution of engine oil with gasoline, increase in hydrocarbon exhaust gas, deterioration of engine oil and generation of sludge. ° C or lower, more preferably 170 ° C or lower, and still more preferably 165 ° C or lower.
EP is preferably 215 ° C. or lower, more preferably 200 ° C. or lower, and still more preferably 195 ° C. or lower. If EP exceeds 215 ° C., intake valve deposits and combustion chamber deposits may increase, and spark plug smoldering may occur.
Here, IBP, T10, T50, T70, T90, and EP mean values (° C.) measured by JIS K2254 “Petroleum product-distillation test method”.

Although the density in 15 degreeC of the gasoline composition of this invention is not specifically limited, It is preferable that it is 0.710-0.783 g / cm < ³ >. If the density of the gasoline composition is less than 0.710 g / cm ³ , the fuel efficiency may be deteriorated. On the other hand, if it exceeds 0.783 g / cm ³ , deterioration of acceleration and smoldering of the plug may occur. There is. From such reasons, the lower limit of the density is preferably 0.710 g / cm ³ or more, more preferably 0.735 g / cm ³ or more, more preferably 0.740 g / cm ³ or more. The upper limit is preferably 0.783g / cm ³ or less of the density, more preferably 0.770 g / cm ³ or less, more preferably 0.760 g / cm ³ or less.
Here, the density at 15 ° C. means a value (g / cm ³ ) measured according to JIS K 2249 “Density test method and density / mass / capacity conversion table for crude oil and petroleum products”.

The amount of kerosene mixed in the gasoline composition of the present invention is preferably 4% by volume or less. If the amount of kerosene mixed exceeds 4% by volume, the startability of the engine may deteriorate.
Here, the amount of kerosene mixed is determined by the content of normal paraffin hydrocarbons having 13 and 14 carbon atoms based on the total amount of gasoline composition, and the conversion of kerosene obtained according to the provisions of JIS K 2536 “Petroleum products-component test method” It means that the value is 4% by volume or less.

  The lead content of the gasoline composition of the present invention is preferably not detected from the viewpoint of protecting the exhaust gas purification system, and preferably contains substantially no alkyl lead compound such as tetraethyl lead. Even when a very small amount of lead compound is contained, the content is not more than the lower limit value of application category (0.001 g / L or less) of JIS K 2255 “Petroleum products-gasoline-lead content test method”.

The oxidation stability of the gasoline composition of the present invention is not particularly limited, but is preferably 240 minutes or more, more preferably 480 minutes or more, and further preferably 1440 minutes or more. If the oxidative stability is less than 240 minutes, gums can form during storage.
The oxidation stability here means a value (minutes) measured by JIS K 2287 “Gasoline oxidation stability test method (induction period method)”.

The amount of unwashed actual gum of the gasoline composition of the present invention is not particularly limited, but is preferably 20 mg / 100 mL or less, and more preferably 18 mg / 100 mL or less. Moreover, it is preferable that it is 3 mg / 100 mL or less, and, as for a washing | cleaning real gum amount, it is more preferable that it is 1 mg / 100 mL or less. When the unwashed actual gum amount and the washed actual gum amount exceed the above values, there is a concern that precipitates are generated in the fuel introduction system or the suction valve is stuck.
The unwashed actual gum amount and the washed actual gum amount here mean values (mg / 100 mL) measured according to JIS K 2261 “Petroleum products—Automotive gasoline and aviation fuel oil—Real gum test method—Jet evaporation method”. To do.

  In the gasoline composition of the present invention, the copper plate corrosion (50 ° C., 3 hours) is preferably 1 or less, more preferably 1a. If the copper plate corrosion exceeds 1, the fuel system conduit may corrode. The copper plate corrosion here means a value measured according to JIS K 2513 “Petroleum products—copper plate corrosion test method” (test temperature 50 ° C., test time 3 hours).

The gasoline composition of the present invention can be prepared by blending one or two or more kinds of gasoline bases and adding a cleaning dispersant and other additives described later as desired.
The gasoline base material used for the gasoline composition of the present invention can be produced by any conventionally known method. Specifically, light naphtha obtained by atmospheric distillation of crude oil, heavy naphtha, desulfurized heavy naphtha obtained by desulfurizing heavy naphtha, catalytic cracking gasoline obtained by catalytic cracking, hydrocracking process Hydrocracked gasoline obtained from the above, reformed gasoline obtained by catalytic reforming method, raffinate which is a residue extracted from aromatics from reformed gasoline, polymerized gasoline obtained by polymerization of olefin, hydrocarbons such as isobutane Alkylate obtained by addition (alkylation) of lower olefin to isomerized gasoline, isomerized gasoline obtained by converting light naphtha to isoparaffin by isomerization unit, denormalized paraffin oil, butane, aromatic hydrocarbon compound, paraffin carbonization Hydrogen compounds, naphthene hydrocarbon compounds, olefin hydrocarbon compounds, ETBE (ethyl-tert-butyl ether , Paraffin fraction obtained by dimerizing propylene and subsequently hydrogenating it, high-octane gasoline, synthetic crude naphtha (naphtha fraction obtained by distillation after upgrading oil sand oil by pyrolysis process, etc.), By mixing one or more base materials such as light fractions of GTL (Gas to Liquids) obtained by FT (Fischer-Tropsch) synthesis after decomposing natural gas into carbon monoxide and hydrogen Can be manufactured.

A typical gasoline formulation is described below. However, the kind of each gasoline base material and the individual blending amount are prepared so that the finally obtained gasoline satisfies the regulations as the gasoline composition of the present invention.
(1) Reformed gasoline: 0 to 70% by volume
(2) Cracked gasoline: 0 to 80% by volume
(3) Alkylate: 0 to 40% by volume
(4) Isomerized gasoline: 0-30% by volume
(5) Light naphtha: 0 to 10% by volume
(6) Destilled heavy naphtha: 0 to 20% by volume
(7) Butane: 0 to 10% by volume

The gasoline composition of the present invention may contain an oxygen-containing compound.
Examples of the oxygen-containing compound include alcohols having 2 to 4 carbon atoms and ethers having 4 to 8 carbon atoms. Specific examples of oxygen-containing compounds include ethanol, methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), tert-amyl methyl ether (TAME), and tert-amyl ethyl ether. it can. Of these, ethanol, MTBE, and ETBE are preferable. In particular, in consideration of environmental effects such as carbon dioxide emission during production, ethanol derived from biomass and ETBE produced using biomass-derived ethanol as a raw material can be preferably used. Methanol is not detected when tested in accordance with JIS K 2536 “Petroleum products-component test method” (0.5% by volume) because methanol may have a high aldehyde concentration in the exhaust gas and is corrosive. It is preferable that These compounds are originally contained in the raw material, and the content thereof is determined in the process of preparing gasoline having the desired properties by mixing one or more kinds of gasoline base materials.
The upper limit of the oxygen content in the gasoline composition is preferably 2.7 mass%, more preferably 2.0 mass%, more preferably 1.3 mass%. . If it exceeds 2.7% by mass, NOx in the exhaust gas may increase.

  The gasoline composition of the present invention may contain a cleaning dispersant. As the cleaning dispersant, compounds known as gasoline cleaning dispersants such as succinimide, polyalkylamine, and polyetheramine can be used. Among these, those having no residue when pyrolysis is performed at 300 ° C. in air are desirable. Preferably, polyisobutenylamine and / or polyetheramine is used. Intake valve deposits can be prevented by the addition of a cleaning dispersant. The content of the cleaning dispersant is preferably 25 to 1000 mg / L based on the total amount of gasoline, more preferably 50 to 500 mg / L, and most preferably 100 to 300 mg / L from the viewpoint of preventing intake valve deposits.

Examples of other fuel oil additives that can be added to the gasoline composition of the present invention include N, N′-diisopropyl-p-phenylenediamine, N, N′-diisobutyl-p-phenylenediamine, Metal inertness such as antioxidants such as 2,6-di-t-butyl-4-methylphenol and hindered phenols, and amine carbonyl condensation compounds such as N, N′-disalicylidene-1,2-diaminopropane Agents, surface ignition inhibitors such as organic phosphorus compounds, anti-freezing agents such as polyhydric alcohols or ethers thereof, alkali metal or alkaline earth metal salts of organic acids, auxiliary alcohols such as higher alcohol sulfates, anionic Antistatic agents such as surfactants, cationic surfactants, amphoteric surfactants, colorants such as azo dyes, organic carboxylic acids or These derivatives, rust preventives such as alkenyl succinic acid esters, draining agents such as sorbitan esters, discriminating agents such as kilyzanine and coumarin, odorants such as natural essential oil synthetic fragrances, higher carboxylic acid monoglycerides and higher carboxyl Examples include friction modifiers such as a mixture of acid amide compounds.
One or more of these additives can be added, and the total addition amount is preferably 0.1% by mass or less based on the total amount of the gasoline composition.

  EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.

[Examples 1 to 5 and Comparative Examples 1 to 3]
Cracked gasoline, reformed gasoline, toluene, xylene, butane, alkylate, light straight-run naphtha (raffinate), aromatic hydrocarbon compound, paraffin hydrocarbon compound, naphthene hydrocarbon compound, olefin hydrocarbon compound, ETBE (ethyl-tert The gasoline of Examples 1 to 5 was prepared by blending base materials such as -butyl ether) and synthetic crude naphtha. On the other hand, Comparative Examples 1 to 3 are heavy straight-run naphtha, light straight-run naphtha (raffinate), cracked gasoline, reformed gasoline, toluene, xylene, butane, alkylate, aromatic hydrocarbon compound, paraffin hydrocarbon compound, naphthene. Each was prepared by blending a base material such as a hydrocarbon compound and ETBE (ethyl-tert-butyl ether).
Moreover, using the obtained gasoline compositions, the following property measurements and fuel consumption tests were performed to evaluate the fuel. The results are shown in Table 1 (base material properties), Table 2 (base material mixing ratio), and Table 3 (gasoline properties and fuel consumption test results).

(Property measurement)
The properties of the gasoline compositions in the examples and comparative examples were measured by the following method.
The octane number (RON) refers to a research octane number measured by JIS K 2280 “Testing method for octane number and cetane number”.
The octane number (MON) refers to the motor method octane number measured by JIS K 2280 “Octane number and cetane number test method”.
Reed vapor pressure (RVP) refers to a value (kPa) measured according to JIS K 2258 “Crude oil and petroleum products—How to determine vapor pressure (Lead method)”.
The distillation properties (T10, T50, T90) all refer to values measured by JIS K 2254 “Petroleum products—Distillation test method”.
The total aromatic content, total naphthene content, and total paraffin content refer to the aromatic content, naphthene content, and paraffin content in gasoline as measured by JIS K 2536 “Petroleum product-component test method”. The total naphthene content / total paraffin content refers to a value obtained by dividing the naphthene content (volume%) obtained by the above-described measurement method by the paraffin content (volume%).

(Fuel consumption test method)
(1) Measurement of fuel consumption rate (fuel consumption) (a) Vehicle specifications A vehicle equipped with a gasoline engine shown below was used for measurement of fuel consumption rate (fuel consumption).
Vehicle A specifications Engine: Inline 3 cylinders, displacement 0.66L, in-cylinder direct fuel injection system Transmission: Automatic transmission Drive system: Front wheel drive Vehicle B specifications Engine: Inline 4 cylinders, displacement 2.0L, electronically controlled fuel Injection system Transmission: Automatic transmission Drive system: Front wheel drive Vehicle C specifications Engine: Inline 4-cylinder, displacement 1.5L, electronically controlled fuel injection system Transmission: CVT
Drive system: Front wheel drive (b) measurement method The fuel consumption rate (fuel consumption) was measured using the vehicles A, B, and C of the above specifications. The measurement was carried out in 10.15 mode according to JIS D 1012-2005 “Automobile-Fuel consumption rate test method”, and the value of fuel consumption rate (fuel consumption) (km / L) was determined.

(2) Capacity calorific value Obtain the total calorific value (J / g) measured by JIS K 2279 “Crude oil and petroleum products-calorific value test method and calculation estimation method” and divide this value by 1000. Convert the unit (MJ / kg). The capacity heating value is a value obtained by multiplying this converted value by the density value at 15 ° C. measured by JIS K 2249 “Crude oil and petroleum products—Density test method and density / mass / capacity conversion table” (MJ / L).

(3) Calculation method of fuel consumption per capacity heating value The fuel consumption per capacity heating value is a value (km / MJ) obtained by dividing the value of fuel consumption (fuel consumption) by the value of capacity heating value. It should be noted that a larger value of the fuel consumption per capacity heating value indicates a better fuel consumption rate (fuel consumption).

(4) Method of calculating rate of change in fuel consumption per capacity calorific value Subtract the fuel efficiency per km calorific value (km / MJ) of Comparative Example 1 from the fuel efficiency per km calorific value (km / MJ) of each of Examples 1 and 2. The value obtained by dividing the value obtained by dividing the value by the fuel efficiency per km calorific value (km / MJ) of Comparative Example 1 by 100 was taken as the fuel consumption change rate (%) per capacity calorific value of each of Examples 1 and 2. Similarly, the value obtained by subtracting the fuel consumption per km calorific value (km / MJ) of Comparative Example 2 from the fuel consumption per km calorific value (km / MJ) of Example 3 is the fuel consumption per capacity calorific value of Comparative Example 2 (km / MJ). The value obtained by multiplying the value divided by km / MJ) by 100 was defined as the fuel consumption change rate (%) per capacity calorific value in Example 3. Further, the value obtained by subtracting the fuel consumption per km calorific value (km / MJ) of Comparative Example 3 from the fuel consumption per km calorific value of Examples 4 and 5 (km / MJ) per capacity calorific value of Comparative Example 3 was obtained. A value obtained by multiplying the value divided by the fuel consumption (km / MJ) by 100 was defined as the fuel consumption change rate (%) per capacity calorific value of each of Examples 4 and 5.
A larger value of the fuel consumption change rate per capacity heating value indicates that the fuel consumption rate (fuel consumption) is better.

The test results are shown in Table 3. For fuels with different RON, the frequency of knocking of the vehicle is different and may affect the fuel consumption, but such an effect is not considered when the research octane number (RON) is almost equal. However, from the test results shown in Table 3, when the gasoline compositions of the present invention (Examples 1 to 5) were used, the capacity compared to the gasoline compositions of Comparative Examples 1 to 3 having substantially the same research octane number (RON). It can be seen that the fuel consumption per calorific value and the fuel consumption change rate per capacity calorific value are large. For example, Example 1 and Example 2 are compared with Comparative Example 1. That is, gasoline having a total naphthene content / total paraffin content of 0.3 or more, a research octane number (RON) of 89 or more, a motor octane number (MON) of 80 or more, and a reed vapor pressure (RVP) of 50 to 93 kPa. It can be seen that the composition is gasoline excellent in fuel consumption rate (fuel consumption).
Here, “substantially equal RON” means two fuels having an octane number within the room-to-room reproduction tolerance of the research method octane number defined by JIS K 2280 “Testing Method for Octane Number and Cetane Number”.

  Since the gasoline composition of the present invention has a fuel consumption rate (fuel consumption) superior to that of conventional gasoline and can reduce carbon dioxide emissions, it is useful for reducing the environmental load.

Claims (2)

Total naphthene content / total paraffin content is 0.3 to 8.0, research octane number (RON) is 89.0 or more, motor method octane number (MON) is 80.0 or more, and reed vapor pressure (RVP) is 50 to 93 kPa. A gasoline composition characterized in that
(Here, the total naphthene content / total paraffin content indicates the ratio of the total naphthene content (volume%) to the total paraffin content (volume%).)   As distillation properties, 10 vol% distillation temperature (T10) is 35 to 70 ° C, 50 vol% distillation temperature (T50) is 75 to 110 ° C, and 90 vol% distillation temperature (T90) is 175 ° C or less. The gasoline composition according to claim 1.