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GB2106933A - Additives for improving the octane rating of liquid motor fuels - Google Patents

Additives for improving the octane rating of liquid motor fuels Download PDF

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Publication number
GB2106933A
GB2106933A GB08123503A GB8123503A GB2106933A GB 2106933 A GB2106933 A GB 2106933A GB 08123503 A GB08123503 A GB 08123503A GB 8123503 A GB8123503 A GB 8123503A GB 2106933 A GB2106933 A GB 2106933A
Authority
GB
United Kingdom
Prior art keywords
percent
additive
proportion
octane rating
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08123503A
Other versions
GB2106933B (en
Inventor
David Vizard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALDON AUTOMOTIVE Ltd
Original Assignee
ALDON AUTOMOTIVE Ltd
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 ALDON AUTOMOTIVE Ltd filed Critical ALDON AUTOMOTIVE Ltd
Priority to GB08123503A priority Critical patent/GB2106933B/en
Publication of GB2106933A publication Critical patent/GB2106933A/en
Application granted granted Critical
Publication of GB2106933B publication Critical patent/GB2106933B/en
Expired legal-status Critical Current

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
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • 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
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/16—Hydrocarbons
    • C10L1/1608—Well defined compounds, e.g. hexane, benzene
    • 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
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
    • C10L1/223—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond having at least one amino group bound to an aromatic carbon atom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Liquid Carbonaceous Fuels (AREA)

Abstract

An additive for improving the octane rating of a liquid motor fuel which is suitable for use in ordinary road engines or race engines in normally aspirated form, comprises an aniline base to which is added toluene preferably in a concentration of between 10 and 25 percent by weight, preferably 15 percent. An additive for use with supercharged engines comprises an aniline base to which are added toluene in a proportion of between 1 and 25 percent by weight and triptane, xylene or a mixture thereof in a proportion of between 1 and 25 percent by weight, preferably 10 percent.

Description

SPECIFICATION Additives for improving the octane rating of liquid motor fuels This invention relates to additives for improving the octane rating of liquid motor fuels.
According to a first aspect of the invention, such an additive comprises an aniline base having added thereto toluene in a proportion of between 10 and 25 percent by weight.
The use of analine as an additive for improving the octane rating of liquid motor fuels is well known, but it can be somewhat disadvantageous since it slows down the rate of combustion of the fuel. The addition of toluene in the above-stated proportion counteracts this effect and increases the speed of the combustion flame front. It has been found that the addition of toluene in a proportion of 15 percent or substantially so produces the optimum effect.
The above additive is particularly suited for ordin ary road engines or race engines in normally aspirated form, and if added in concentrations of up to 5 percent to a liquid motorfuel having a normal octane rating of 96 to 97, an increase in the octane rating of 3 to typically results. Higherconcentra- tions can successfully be used if the base fuel has a very low octane rating.
According to a second aspect of the invention, an additive for impriving the octane rating of a liquid motor fuel comprises an aniline base having added thereto toluene in a proportion of between 1 and 25 percent by weight and triptane, xylene or a mixture thereof in a proportion of between 1 and 25 percent by weight. Preferably, the triptane, xylene or mix tures thereof is employed in a proportion of 10 percent by weight or substantially so.
The iatter additive is particularly suited for tur- bocharged or other supercharged engines, and enables the fuel to maintain a good octane rating at the elevated temperatures which are normally associated with supercharged engines. As with the first-mentioned additive, concentrations of up to 5 percent are commonly used, but much higher con centrations than this can be successfully employed.
1. An additive for improving the octane rating of liquid motor fuels, comprising an aniline base to which toluene has been added.
2. An additive as claimed in claim 1, wherein the toluene is added in a proportion of between 10 and 25 percent by weight.
3. An additive as claimed in claim 2, wherein the toluene is added in a proportion of substantially 15 percent by weight.
4. An additive as claimed in claim 1, wherein the toluene is added in a proportion of between 1 and 25 percent by weight, and there is also added to the aniline base triptane, xylene or a mixture thereof in a proportion of between 1 and 25 percent by weight.
5. An additive as claimed in claim 4, wherein the triptane, xylene or a mixture thereof is added in a proportion of substantially 10 percent by weight.
6. Additives for improving the octane rating of liquid motor fuels, substantially as hereinbefore described.
7. A liquid motor fuel having a normal octane rating of 96 to 97, to which an additive as claimed in claim 2 or 3 has been added in a concentration of up to five percent.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Additives for improving the octane rating of liquid motor fuels This invention relates to additives for improving the octane rating of liquid motor fuels. According to a first aspect of the invention, such an additive comprises an aniline base having added thereto toluene in a proportion of between 10 and 25 percent by weight. The use of analine as an additive for improving the octane rating of liquid motor fuels is well known, but it can be somewhat disadvantageous since it slows down the rate of combustion of the fuel. The addition of toluene in the above-stated proportion counteracts this effect and increases the speed of the combustion flame front. It has been found that the addition of toluene in a proportion of 15 percent or substantially so produces the optimum effect. The above additive is particularly suited for ordin ary road engines or race engines in normally aspirated form, and if added in concentrations of up to 5 percent to a liquid motorfuel having a normal octane rating of 96 to 97, an increase in the octane rating of 3 to typically results. Higherconcentra- tions can successfully be used if the base fuel has a very low octane rating. According to a second aspect of the invention, an additive for impriving the octane rating of a liquid motor fuel comprises an aniline base having added thereto toluene in a proportion of between 1 and 25 percent by weight and triptane, xylene or a mixture thereof in a proportion of between 1 and 25 percent by weight. Preferably, the triptane, xylene or mix tures thereof is employed in a proportion of 10 percent by weight or substantially so. The iatter additive is particularly suited for tur- bocharged or other supercharged engines, and enables the fuel to maintain a good octane rating at the elevated temperatures which are normally associated with supercharged engines. As with the first-mentioned additive, concentrations of up to 5 percent are commonly used, but much higher con centrations than this can be successfully employed. CLAIMS
1. An additive for improving the octane rating of liquid motor fuels, comprising an aniline base to which toluene has been added.
2. An additive as claimed in claim 1, wherein the toluene is added in a proportion of between 10 and 25 percent by weight.
3. An additive as claimed in claim 2, wherein the toluene is added in a proportion of substantially 15 percent by weight.
4. An additive as claimed in claim 1, wherein the toluene is added in a proportion of between 1 and 25 percent by weight, and there is also added to the aniline base triptane, xylene or a mixture thereof in a proportion of between 1 and 25 percent by weight.
5. An additive as claimed in claim 4, wherein the triptane, xylene or a mixture thereof is added in a proportion of substantially 10 percent by weight.
6. Additives for improving the octane rating of liquid motor fuels, substantially as hereinbefore described.
7. A liquid motor fuel having a normal octane rating of 96 to 97, to which an additive as claimed in claim 2 or 3 has been added in a concentration of up to five percent.
GB08123503A 1981-07-31 1981-07-31 Additives for improving the octane rating of liquid motor fuels Expired GB2106933B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08123503A GB2106933B (en) 1981-07-31 1981-07-31 Additives for improving the octane rating of liquid motor fuels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08123503A GB2106933B (en) 1981-07-31 1981-07-31 Additives for improving the octane rating of liquid motor fuels

Publications (2)

Publication Number Publication Date
GB2106933A true GB2106933A (en) 1983-04-20
GB2106933B GB2106933B (en) 1984-11-07

Family

ID=10523606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08123503A Expired GB2106933B (en) 1981-07-31 1981-07-31 Additives for improving the octane rating of liquid motor fuels

Country Status (1)

Country Link
GB (1) GB2106933B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0697033A1 (en) * 1993-05-04 1996-02-21 Exxon Research And Engineering Company Unleaded aviation gasoline
WO1998022556A1 (en) * 1996-11-18 1998-05-28 Bp Oil International Limited Fuel composition
GB2334262A (en) * 1996-11-18 1999-08-18 Bp Oil Int Fuel composition
WO1999049003A1 (en) * 1998-03-26 1999-09-30 Bp Oil International Limited Fuel composition
US6767372B2 (en) 2000-09-01 2004-07-27 Chevron U.S.A. Inc. Aviation gasoline containing reduced amounts of tetraethyl lead
US7462207B2 (en) 1996-11-18 2008-12-09 Bp Oil International Limited Fuel composition
US8232437B2 (en) 1996-11-18 2012-07-31 Bp Oil International Limited Fuel composition

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0697033A4 (en) * 1993-05-04 1996-05-15 Exxon Research Engineering Co Unleaded aviation gasoline
EP0697033A1 (en) * 1993-05-04 1996-02-21 Exxon Research And Engineering Company Unleaded aviation gasoline
US7462207B2 (en) 1996-11-18 2008-12-09 Bp Oil International Limited Fuel composition
WO1998022556A1 (en) * 1996-11-18 1998-05-28 Bp Oil International Limited Fuel composition
GB2334262A (en) * 1996-11-18 1999-08-18 Bp Oil Int Fuel composition
US8536389B2 (en) 1996-11-18 2013-09-17 Bp Oil International Limited Fuel composition
US8232437B2 (en) 1996-11-18 2012-07-31 Bp Oil International Limited Fuel composition
GB2334262B (en) * 1996-11-18 2001-01-31 Bp Oil Int Fuel composition
US7833295B2 (en) 1996-11-18 2010-11-16 Bp Oil International Limited Fuel composition
US7553404B2 (en) 1996-11-18 2009-06-30 Bp Oil International Limited Fuel composition
AU753443B2 (en) * 1998-03-26 2002-10-17 Bp Oil International Limited Fuel composition
MY119842A (en) * 1998-03-26 2005-07-29 Bp Oil Int Gasoline composition, base blend formulation use and method of reducing emissions.
EP1359207A1 (en) * 1998-03-26 2003-11-05 Bp Oil International Limited Fuel composition
AU753443C (en) * 1998-03-26 2003-05-15 Bp Oil International Limited Fuel composition
GB2350372B (en) * 1998-03-26 2002-09-18 Bp Oil Int Fuel composition
GB2350372A (en) * 1998-03-26 2000-11-29 Bp Oil Int Fuel composition
WO1999049003A1 (en) * 1998-03-26 1999-09-30 Bp Oil International Limited Fuel composition
US6767372B2 (en) 2000-09-01 2004-07-27 Chevron U.S.A. Inc. Aviation gasoline containing reduced amounts of tetraethyl lead

Also Published As

Publication number Publication date
GB2106933B (en) 1984-11-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930731