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US4599088A Expired / Lapsed US ⏱️ 0.0 years remaining

Clear stable gasoline-alcohol-water motor fuel composition

Assignee: Texaco Inc
•
Filing: 1984-08-30
•
Granted: 1986-07-08
•
Expires: 2004-08-30
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Abstract

Abstract A clear stable motor fuel composition having an improved octane rating which comprises about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having 9 to 24 carbon atoms in the alkyl group and 6-10.0 ethylene oxide groups; and the remainder of said clear stable motor fuel composition is gasoline.

Inventors

  • 👤 Marshall E. Davis
  • 👤 Rodney L. Sung

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:38
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/02; C10L1/023; C10L1/32; C10L1/328; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 134 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition comprises gasoline.
Claim 2
Dependent Claim 134 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition comprises gasoline.
Claim 3
Dependent Claim 30 words
The motor fuel composition of claim 1 wherein the weight ratio of tertiary butyl alcohol and/or isopropanol to methanol and/or ethanol is in the range of about 0.3 to 3.0.
Claim 4
Dependent Claim 29 words
The motor fuel composition of claim 1 wherein the nonionic adduct of alkylphenol and ethylene oxide is about 0.10 to 2.04 weight percent of the total motor fuel composition.
Claim 5
Dependent Claim 23 words
The motor fuel composition of claim 1 wherein the water is about 0.30 to 0.40 weight percent of the total motor fuel composition.
Claim 6
Dependent Claim 30 words
The motor fuel composition of claim 1 where in structural Formula I the alkyl group in R has 10 to 12 carbon atoms and x is an integer from 7-8.
Claim 7
Dependent Claim 30 words
The motor fuel composition of claim 1 where in structural Formula I the alkyl group in R has 10 to 12 carbon atoms and x is an integer from 7-9.5.
Claim 8
Dependent Claim 195 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of an alcohol selected from the group consisting of methanol in the amount of about 2.0 to 5.0 vol. %, ethanol in the amount of about 2.0 to 10.0 vol. %, and mixtures thereof in the amount of about 3 to 9.0 vol. %; about 2.0 to 10 vol. % of a cosolvent alcohol selected from the group consisting of tertiary butyl alcohol, isopropanol, and mixtures thereof; water to provide a total water concentration of about 0.1 to 0.5 wt. %; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline. atoms and x is an integer from 7-8.
Claim 9
Dependent Claim 195 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of an alcohol selected from the group consisting of methanol in the amount of about 2.0 to 5.0 vol. %, ethanol in the amount of about 2.0 to 10.0 vol. %, and mixtures thereof in the amount of about 3 to 9.0 vol. %; about 2.0 to 10 vol. % of a cosolvent alcohol selected from the group consisting of tertiary butyl alcohol, isopropanol, and mixtures thereof; water to provide a total water concentration of about 0.1 to 0.5 wt. %; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline. atoms and x is an integer from 7-8.
Claim 10
Dependent Claim 30 words
The motor fuel composition of claim 7 wherein the weight ratio of tertiary butyl alcohol and/or isopropanol to methanol and/or ethanol is in the range of about 0.3 to 3.0.
Claim 11
Dependent Claim 120 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of: about 2.0-5.0 vol. % of methanol; about 2.0-10.0 vol. % of ethanol; about 0.1-0.5 wt. % of water; about 0.10 to 3.0 wt. % of a nonionic adduct of alkylphenol and ethylene oxide surfactant having structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline.
Claim 12
Dependent Claim 120 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of: about 2.0-5.0 vol. % of methanol; about 2.0-10.0 vol. % of ethanol; about 0.1-0.5 wt. % of water; about 0.10 to 3.0 wt. % of a nonionic adduct of alkylphenol and ethylene oxide surfactant having structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline.
Claim 13
Dependent Claim 122 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of: about 4.7 vol. % of tertiary butyl alcohol and/or 4.7 vol. % of isopropanol; about 0.1-0.5 wt. % of water; about 0.10 to 3.0 wt. % of a nonionic adduct of alkylphenol and ethylene oxide surfactant having structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline.
Claim 14
Dependent Claim 122 words
A clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of: about 4.7 vol. % of tertiary butyl alcohol and/or 4.7 vol. % of isopropanol; about 0.1-0.5 wt. % of water; about 0.10 to 3.0 wt. % of a nonionic adduct of alkylphenol and ethylene oxide surfactant having structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline.
Claim 15
Dependent Claim 195 words
A process for producing a clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising mixing together in an amount based on the final motor fuel composition the following ingredients to form a microemulsion: an alcohol selected from the group consisting of methanol in the amount of about 2.0 to 5.0 vol. %, ethanol in the amount of about 2.0 to 10.0 vol. %, and mixtures thereof in the amount of about 3.0 to 9.0 vol. %; about 2.0 to 10 vol. %, of a cosolvent alcohol selected from the group consisting of tertiary butyl alcohol, isopropanol, and mixtures thereof; water to provide a total water concentration of about 0.1 to 0.5 wt. %; about 0.10 to 3.0 wt. % of an adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline.
Claim 16
Dependent Claim 195 words
A process for producing a clear stable motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising mixing together in an amount based on the final motor fuel composition the following ingredients to form a microemulsion: an alcohol selected from the group consisting of methanol in the amount of about 2.0 to 5.0 vol. %, ethanol in the amount of about 2.0 to 10.0 vol. %, and mixtures thereof in the amount of about 3.0 to 9.0 vol. %; about 2.0 to 10 vol. %, of a cosolvent alcohol selected from the group consisting of tertiary butyl alcohol, isopropanol, and mixtures thereof; water to provide a total water concentration of about 0.1 to 0.5 wt. %; about 0.10 to 3.0 wt. % of an adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition is gasoline.
Claim 17
Dependent Claim 21 words
The process of claim 11 wherein at least a portion of said water is provided dissolved in said gasoline and/or alcohol.
Claim 18
Dependent Claim 28 words
The process of claim 11 wherein the volume ratio of tertiary butyl alcohol and/or isopropanol to methanol and/or ethanol is in the range of about 0.3 to 3.0.
Claim 19
Dependent Claim 149 words
A process for producing upgraded clear stable motor fuel for an internal combustion engine from a hazy mixture of gasoline-alcohol-water comprising, mixing with said hazy gasoline-alcohol-water mixture to form a clear microemulsion a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and wherein said clear stable motor fuel comprises a mixture based on the final motor fuel composition of about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of said surfactant having said structural Formula I; and the remainder of said clear stable motor fuel substantially comprises gasoline.
Claim 20
Dependent Claim 149 words
A process for producing upgraded clear stable motor fuel for an internal combustion engine from a hazy mixture of gasoline-alcohol-water comprising, mixing with said hazy gasoline-alcohol-water mixture to form a clear microemulsion a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and wherein said clear stable motor fuel comprises a mixture based on the final motor fuel composition of about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of said surfactant having said structural Formula I; and the remainder of said clear stable motor fuel substantially comprises gasoline.
Claim 21
Dependent Claim 32 words
The process of claim 14 wherein said motor fuel is a microemulsion of the "water-in-petroleum" type in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller.
Claim 22
Dependent Claim 220 words
A process for producing upgraded clear stable motor fuel for an internal combustion engine from a hazy mixture of gasoline-alcohol-water comprising, mixing with said hazy gasoline-alcohol-water mixture to form a clear microemulsion a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and wherein said clear stable motor fuel comprises a mixture based on the final motor fuel composition of alcohol selected from the group consisting of methanol in the amount of about 2.0 to 5.0 vol. %, ethanol in the amount of about 2.0 to 10.0, vol. %, and mixtures thereof in the amount of about 3 to 9.0 vol. %; about 2.0 to 10 vol. % of a cosolvent alcohol selected from the group consisting of tertiary butyl alcohol, isopropanol, and mixtures thereof, wherein the volumetric ratio of tertiary butyl alcohol and/or isopropanol to methanol and/or ethanol is in the range of about 0.30 to 3.0; water to provide a total water concentration of about 0.1 to 0.5 wt. %; and about 0.10 to 3.0 wt. % of said surfactant represented by Formula I; and the remainder of said clear stable motor fuel substantially comprises gasoline.
Claim 23
Dependent Claim 220 words
A process for producing upgraded clear stable motor fuel for an internal combustion engine from a hazy mixture of gasoline-alcohol-water comprising, mixing with said hazy gasoline-alcohol-water mixture to form a clear microemulsion a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and wherein said clear stable motor fuel comprises a mixture based on the final motor fuel composition of alcohol selected from the group consisting of methanol in the amount of about 2.0 to 5.0 vol. %, ethanol in the amount of about 2.0 to 10.0, vol. %, and mixtures thereof in the amount of about 3 to 9.0 vol. %; about 2.0 to 10 vol. % of a cosolvent alcohol selected from the group consisting of tertiary butyl alcohol, isopropanol, and mixtures thereof, wherein the volumetric ratio of tertiary butyl alcohol and/or isopropanol to methanol and/or ethanol is in the range of about 0.30 to 3.0; water to provide a total water concentration of about 0.1 to 0.5 wt. %; and about 0.10 to 3.0 wt. % of said surfactant represented by Formula I; and the remainder of said clear stable motor fuel substantially comprises gasoline.
Claim 24
Independent Claim 150 words
A method for operating an internal combustion engine which comprises, supplying thereto and combusting therein a clear stable gasoline-alcohol-water motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition comprises gasoline.
Claim 25
Independent Claim 150 words
A method for operating an internal combustion engine which comprises, supplying thereto and combusting therein a clear stable gasoline-alcohol-water motor fuel composition of the "water-in-petroleum" type microemulsion in which the average particle diameter of the dispersed phase is about 0.1 micron or smaller, said motor fuel composition comprising a mixture based on the final motor fuel composition of about 2.0 to 10.0 volume percent of an alcohol selected from the group consisting of methanol, ethanol, tertiary butyl alcohol, isopropanol, and mixtures thereof; about 0.10 to 0.50 weight percent water; about 0.10 to 3.0 weight percent of a nonionic adduct of alkylphenol and ethylene oxide surfactant having the structural Formula I, as follows: R(CH.sub.2 CH.sub.2 O).sub.x H I wherein: R is an alkylphenol group where the alkyl group has 9-24 carbon atoms; and x is an integer from 6-10.0; and the balance of said clear stable motor fuel composition comprises gasoline.

References Cited (Backward Citations)

US2920948A Cited
US3876391A Cited
US3822119A Cited
US3988122A Cited
US4154580A Cited
US4384872A Cited
US4398920A Cited
US4410333A Cited
US4410334A Cited

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3.5 Years (Year 4) 1989-07-07 1990-01-06 1990-07-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-07-07 1994-01-06 1994-07-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-07-07 1998-01-06 1998-07-08 $7700.00 Window Closed / Lapsed

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