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US20120110900A1 - Liquid fuel composition and method for enhancing combustion efficiency of a liquid fuel - Google Patents

Liquid fuel composition and method for enhancing combustion efficiency of a liquid fuel Download PDF

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Publication number
US20120110900A1
US20120110900A1 US13/200,274 US201113200274A US2012110900A1 US 20120110900 A1 US20120110900 A1 US 20120110900A1 US 201113200274 A US201113200274 A US 201113200274A US 2012110900 A1 US2012110900 A1 US 2012110900A1
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hydroxy
methyl
liquid fuel
isobutyl
sublimatable
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US13/200,274
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Kai-Shon Tsai
Chien-Li Lee
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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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
    • C10L1/1822—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
    • C10L1/1824—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-hydroxy
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/185—Ethers; Acetals; Ketals; Aldehydes; Ketones
    • C10L1/1852—Ethers; Acetals; Ketals; Orthoesters
    • C10L1/1855—Cyclic ethers, e.g. epoxides, lactides, lactones
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/185—Ethers; Acetals; Ketals; Aldehydes; Ketones
    • C10L1/1857—Aldehydes; Ketones
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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

  • This invention relates to a liquid fuel composition and a method for enhancing combustion efficiency of a liquid fuel using a sublimatable organic compound.
  • No.5,266,082 discloses a fuel additive for improving combustion of a hydrocarbon fuel and substantially reducing motor vehicle exhaust emissions.
  • the fuel additive includes at least 90 wt % of a carrier liquid, a bicyclic aromatic component such as naphthalene, zinc oxide, and metal oxides.
  • a bicyclic aromatic component such as naphthalene, zinc oxide, and metal oxides.
  • camphor and naphthalene have relatively high melting points, i.e., 176-180° C. and 179.75° C., respective, they posses poor burning characteristics, thereby resulting in heavy smoke and carbon deposits.
  • the object of the present invention is to provide a liquid fuel composition and a method using the same that may overcome the above drawbacks associated with the prior art.
  • a liquid fuel composition includes: a liquid fuel; and a sublimatable organic compound that has a sublimation point lower than 45° C. at atmospheric pressure, and that includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
  • a method for enhancing combustion efficiency of a liquid fuel includes: adding a sublimatable organic compound in a liquid fuel, wherein the sublimatable organic compound has a sublimation point lower than 45° C. at atmospheric pressure and includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
  • a liquid fuel composition comprises: a liquid fuel; and a sublimatable organic compound that has a sublimation point lower than 45° C. at atmospheric pressure, and that includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
  • sublimatable organic compound Preferred examples for the sublimatable organic compound are described below according to the skeleton thereof. It should be noted that the sublimatable organic compound is not limited to the following examples. The sublimatable organic compounds containing different skeletons can be simultaneously used in the liquid fuel composition of this invention.
  • Natural compounds include, e.g., borneol, camphene, etc.
  • Synthesis compounds include, e.g., 2-hydroxy-2,6,6-trimethylbicyclo[3.1.1]-2-heptane having the following formula (1),
  • Natural compounds include, e.g., 5-acetyl-1,1,2,3,3,6-hexamethylindane(phantolide), 4-acetyl-6-tert-butyl-1,1-dimethylindane (celestolide),
  • Natural compounds include, e.g., maltol (3-hydroxy-2-methyl-4-pyrone), etc.
  • Synthesis compounds include, e.g.,
  • Synthesis compounds include, e.g.,
  • Synthesis compounds include, e.g.,
  • Natural compounds include, e.g., menthol, tert-butylcyclohexanol, etc.
  • Synthesis compounds include, e.g.,
  • Synthesis compounds include, e.g.,
  • Synthesis compounds include, e.g.,
  • Synthesis compounds include
  • Each of the above sublimatable organic compounds is either a natural compound or a synthetic compound. They are substantially environmental friendly and have little or no impact to the environment.
  • the sublimatable organic compound is present in an amount of 0.1-500 grams based on 10 L of the liquid fuel.
  • the liquid fuel of the liquid fuel composition is selected from the group consisting of gasoline, diesel, alcohol, biomass fuel, organic hydrogenated fuel oil, and combinations thereof.
  • organic hydrogenated fuel oil include, but are not limited to, cyclohexane, methylcyclohexane, and decahydronaphthalene.
  • the method for enhancing combustion efficiency of a liquid fuel according to the present invention includes adding the aforesaid sublimatable organic compound(s) in the liquid fuel.
  • a sublimatable organic compound of the present invention 2.5 grams was added in a liquid fuel having a predetermined volume so as to form a liquid fuel composition of the present invention.
  • the liquid fuel composition of the present invention was filled in the fuel tank of a vehicle which was subsequently tested to run on a general road in Shenzhen, China with a varying speed.
  • the species of the sublimatable organic compound, the liquid fuel, the amounts of the liquid fuel, the tested vehicle, and the total volume displaced by a cylinder/cylinders of the engine through one revolution, horsepower, and manufacture year of the vehicle for each of Examples 1 to 7 are shown in Table 1.
  • the running mileage of each of Examples 1 to 7 was recorded and is shown in Table 2.
  • the volume of the sublimatable organic compound of this invention is increased, thereby resulting in a disturbing flow and a diffusion of Brown Movement in the liquid fuel to allow the liquid fuel to be uniformly heated and thus converted to small molecules or gas state.
  • the sublimated organic compound also assists the diffusion/movement and complete combustion of the liquid fuel with small molecules or gas state. Therefore, with the addition of the sublimatable organic compound in the liquid fuel, the combustion efficiency of the liquid fuel composition of this invention,can be enhanced.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A liquid fuel composition includes: a liquid fuel; and a sublimatable organic compound that has a sublimation point lower than 45° C. at atmospheric pressure, and that includes a skeleton selected from bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.

Description

    CROSS-REFERENCE TO RELATED APPLICATION
  • This application claims priority of Taiwanese application No. 099138652, filed on Nov. 10, 2010.
    • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • This invention relates to a liquid fuel composition and a method for enhancing combustion efficiency of a liquid fuel using a sublimatable organic compound.
  • 2. Description of the Related Art
  • As the global energy crisis and environmental pollution become more serious, scientists are devoting efforts to investigate alternative energy resources as well as develop methods for enhancing the combustion efficiency and reducing the usage of present energy sources such as fossil fuels. For the latter purpose, aside from modifying the mechanical structure of combustion equipment, use of fuel additives to improve combustion efficiency is also widely employed. For example, methyl tertiarybutyl ether (MEBT) has been added in unleaded gasoline in an amount of about 4-10 wt % to achieve complete combustion of gasoline. However, exposure to MEBT for a long time is likely to cause tissue/organ damage or cancer. Camphor and naphthalene are also used as fuel additives. U.S. Pat. No.5,266,082 discloses a fuel additive for improving combustion of a hydrocarbon fuel and substantially reducing motor vehicle exhaust emissions. The fuel additive includes at least 90 wt % of a carrier liquid, a bicyclic aromatic component such as naphthalene, zinc oxide, and metal oxides. However, since camphor and naphthalene have relatively high melting points, i.e., 176-180° C. and 179.75° C., respective, they posses poor burning characteristics, thereby resulting in heavy smoke and carbon deposits.
    • SUMMARY OF THE INVENTION
  • Therefore, the object of the present invention is to provide a liquid fuel composition and a method using the same that may overcome the above drawbacks associated with the prior art.
  • According to a first aspect of the present invention, a liquid fuel composition includes: a liquid fuel; and a sublimatable organic compound that has a sublimation point lower than 45° C. at atmospheric pressure, and that includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
  • According to a second aspect of the present invention, a method for enhancing combustion efficiency of a liquid fuel includes: adding a sublimatable organic compound in a liquid fuel, wherein the sublimatable organic compound has a sublimation point lower than 45° C. at atmospheric pressure and includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • According to the preferred embodiments of the present invention, a liquid fuel composition comprises: a liquid fuel; and a sublimatable organic compound that has a sublimation point lower than 45° C. at atmospheric pressure, and that includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
  • Preferred examples for the sublimatable organic compound are described below according to the skeleton thereof. It should be noted that the sublimatable organic compound is not limited to the following examples. The sublimatable organic compounds containing different skeletons can be simultaneously used in the liquid fuel composition of this invention.
    • 1. Bicycloheptane Skeleton:
  • Natural compounds include, e.g., borneol, camphene, etc.
  • Synthesis compounds include, e.g., 2-hydroxy-2,6,6-trimethylbicyclo[3.1.1]-2-heptane having the following formula (1),
  • 4,7,7-trimethylbicyclo[2.2.1]heptanone having the following formula (2),
  • 4,7,7-trimethylbicyclo[2.2.1]heptanone having the following formula (3), etc. Schemes for synthesis of formulas (1), (2), and (3) are shown below.
  • Figure US20120110900A1-20120510-C00001
    • Scheme for Synthesis of Formula (1)
  • Figure US20120110900A1-20120510-C00002
    • Scheme for Synthesis of Formula (2)
  • Figure US20120110900A1-20120510-C00003
    • Scheme for Synthesis of Formula (3)
  • Figure US20120110900A1-20120510-C00004
    • 2. Indane Skeletone:
  • Natural compounds include, e.g., 5-acetyl-1,1,2,3,3,6-hexamethylindane(phantolide), 4-acetyl-6-tert-butyl-1,1-dimethylindane (celestolide),
  • 1,1,4,4-tetramethyl-6-ethyl-7-acetyl-1,2,3,4-tetra hydronaphthalene(versalide), etc.
    • 3. Pyrone Skeletone:
  • Natural compounds include, e.g., maltol (3-hydroxy-2-methyl-4-pyrone), etc.
    • 4. Cyclopropane Skeletone:
  • Synthesis compounds include, e.g.,
  • 2-isobutyl-3-isopropylcyclopropanol having the following formula (4),
  • 2-isobutyl-3-isopropylcyclopropanone having the following formula (5), etc.
  • Figure US20120110900A1-20120510-C00005
    • 5. Cyclobutane Skeletone:
  • Synthesis compounds include, e.g.,
  • 2-isobutyl-4-ethylcyclobutanol having the following formula(6),2-isobutyl-4-ethylcyclobutanone having the following formula (7), etc.
  • Figure US20120110900A1-20120510-C00006
    • 6. Cyclopentane Skeletone:
  • Synthesis compounds include, e.g.,
  • 2-isobutyl-4-methylcyclopentanol having the following formula (8),
  • 2-isobutyl-4-methylcyclopentanone having the following formula (9), etc.
  • Figure US20120110900A1-20120510-C00007
    • 7. Cyclohexane Skeletone:
  • Natural compounds include, e.g., menthol, tert-butylcyclohexanol, etc.
  • Synthesis compounds include, e.g.,
  • 2-isopropyl-2,5-dihydroxy-5-methylcyclohexanone derived from menthol and having the following formula (10),
  • 1-methyl -1-hydroxy-4-(1-methyl-1-hydroxyethyl)cyclohexane derived from limonene and having the following formula (11),
  • 2-methyl-3,5-dihydroxy-5-(1-methylvinyl)-2-cyclo hexanone derived from carvone and having the following formula (12),
  • 3-methyl-3-hydroxy-6-isopropylcyclohexanone derived from piperitone and having the following formula (13),
  • 5-hydroxy-5-methyl-2-(1-methylethylidene)cyclo hexane derived from pulegone and having the following formula (14),
  • 2-(4-hydroxy-4-methyl-1-cyclohexyl)isopropanol derived from terpineol and having the following formula (15),
  • 1-hydroxy-1-methyl-4-(1-methylethylidene)cyclo hexane derived from terpinolene and having the following formula (16),
  • 1-hydroxy-2-isobutylcyclohexane having the following formula (17),
  • 1-hydroxy-1-isobutylcyclohexane having the following formula (18),
  • 1, 4-dihydroxy-3,6-diisobutylcyclohexane having the following formula (19),
  • 1-hydroxy-3,6-diisobutylcyclohexane having the following formula (20),
  • 1-hydroxy-4-isobutylcyclohexane having the following formula (21), 2-isobutylcyclohexanone having the following formula (22),
  • 1-hydroxl-3-isopropyl-6-methylcyclohexane having the following formula (23), 2-isobutylcyclohexanol having the following formula (24), etc. Schemes for synthesis of formulas (10) to (23) are shown below.
  • Figure US20120110900A1-20120510-C00008
    Figure US20120110900A1-20120510-C00009
    • Scheme for Synthesis of Formula (10)
  • Figure US20120110900A1-20120510-C00010
    • Scheme for Synthesis of Formula (11)
  • Figure US20120110900A1-20120510-C00011
    • Scheme for Synthesis of Formula (12)
  • Figure US20120110900A1-20120510-C00012
    • Scheme for Synthesis of Formula (13)
  • Figure US20120110900A1-20120510-C00013
    • Scheme for Synthesis of Formula (14)
  • Figure US20120110900A1-20120510-C00014
    • Scheme for Synthesis of Formula (15)
  • Figure US20120110900A1-20120510-C00015
    • Scheme for Synthesis of Formula (16)
  • Figure US20120110900A1-20120510-C00016
    • Scheme for Synthesis of Formula (17)
  • Figure US20120110900A1-20120510-C00017
    • Scheme for Synthesis of Formula (18)
  • Figure US20120110900A1-20120510-C00018
    • Scheme for Synthesis of Formula (19)
  • Figure US20120110900A1-20120510-C00019
    • Scheme for Synthesis of Formula (20)
  • Figure US20120110900A1-20120510-C00020
    • Scheme for Synthesis of Formula (21)
  • Figure US20120110900A1-20120510-C00021
    • Scheme for Synthesis of Formula (22)
  • Figure US20120110900A1-20120510-C00022
    • Scheme for Synthesis of Formula (23)
  • Figure US20120110900A1-20120510-C00023
    • 8. Cycloheptane Skeletone:
  • Synthesis compounds include, e.g.,
  • 4-isopropylcycloheptanol having the following formula (25), 4-isopropylcycloheptanone having the following formula (26), etc.
  • Figure US20120110900A1-20120510-C00024
    • 9. Cyclooctane Skeletone:
  • Synthesis compounds include, e.g.,
  • 3,7-dimethylcyclooctanol having the following formula (27), 3,7-dimethylcyclooctanone having the following formula (28), etc.
  • Figure US20120110900A1-20120510-C00025
    • 10. Benzene Skeletone:
  • Synthesis compounds include
  • 1-methyl-2,5-diisobutyl-4-cumene having the following formula (29), etc.
  • Figure US20120110900A1-20120510-C00026
  • Each of the above sublimatable organic compounds is either a natural compound or a synthetic compound. They are substantially environmental friendly and have little or no impact to the environment.
  • Preferably, in the liquid fuel composition, the sublimatable organic compound is present in an amount of 0.1-500 grams based on 10 L of the liquid fuel.
  • Preferably, the liquid fuel of the liquid fuel composition is selected from the group consisting of gasoline, diesel, alcohol, biomass fuel, organic hydrogenated fuel oil, and combinations thereof. Examples of the organic hydrogenated fuel oil include, but are not limited to, cyclohexane, methylcyclohexane, and decahydronaphthalene.
  • The method for enhancing combustion efficiency of a liquid fuel according to the present invention includes adding the aforesaid sublimatable organic compound(s) in the liquid fuel.
    • EXAMPLE Examples 1 to 7 (E1-E7)
  • 2.5 grams of a sublimatable organic compound of the present invention was added in a liquid fuel having a predetermined volume so as to form a liquid fuel composition of the present invention. The liquid fuel composition of the present invention was filled in the fuel tank of a vehicle which was subsequently tested to run on a general road in Shenzhen, China with a varying speed. The species of the sublimatable organic compound, the liquid fuel, the amounts of the liquid fuel, the tested vehicle, and the total volume displaced by a cylinder/cylinders of the engine through one revolution, horsepower, and manufacture year of the vehicle for each of Examples 1 to 7 are shown in Table 1. The running mileage of each of Examples 1 to 7 was recorded and is shown in Table 2.
  • TABLE 1
    Amount
    Horse- of
    Total volume power Manufacture Sublimatable Organic Liquid Liquid
    Example Vehicle (c.c.) (hp) Year Compound Fuel Fuel (L)
    1 TUCSOND- 2000 136 November 2007 1-hydroxy-4- diesel 50
    DX2 isobutylcyclohexane
    2 Audi A80 2000 175 October 2002 2-isobutyl- 95RON 60
    cyclohexanone unleaded
    gasoline
    3 Honda 3000 200 June 2003 1-hydroxl-3-isopropyl- 97RON 50
    Accord 6-methylcyclohexane unleaded
    gasoline
    4 Audi A80 2000 175 October 2002 2-isobutylcyclohexanol 95RON 60
    unleaded
    gasoline
    5 Honda 3000 200 June 2003 2-isobutylcyclohexanone 97RON 50
    Accord unleaded
    gasoline
    6 Honda 3000 200 June 2003 4,7,7-trimethylbicyclo- 97RON 50
    Accord [2.2.1]heptanol unleaded
    gasoline
    7 TUCSOND- 2000 136 November 2007 4,7,7-trimethylbicyclo- diesel 50
    DX2 [2.2.1]heptanone
    • Comparative Examples 1 to 7 (CE1-CE7)
  • The composition and test conditions of each of Comparative Examples 1 to 7 were the same as those of each of Examples 1 to 7, respectively, except that the liquid fuels used in Comparative Examples 1 to 7 contain no sublimatable organic compounds. The running mileage of each of Comparative Examples 1 to 7 was recorded and is shown in Table 2.
  • TABLE 2
    Example/Comparative
    Example Mileage
    E1 560
    CE1 480
    E2 430
    CE2 350
    E3 450
    CE3 350
    E4 460
    CE4 350
    E5 440
    CE5 350
    E6 470
    CE6 350
    E7 590
    CE7 480
  • The results shown in Table 2 indicate that addition of the sublimatable organic compounds of this invention to the liquid fuel can raise the running mileage of the vehicles.
  • When the sublimatable organic compound of this invention is sublimated in the liquid fuel, the volume of the sublimatable organic compound is increased, thereby resulting in a disturbing flow and a diffusion of Brown Movement in the liquid fuel to allow the liquid fuel to be uniformly heated and thus converted to small molecules or gas state. The sublimated organic compound also assists the diffusion/movement and complete combustion of the liquid fuel with small molecules or gas state. Therefore, with the addition of the sublimatable organic compound in the liquid fuel, the combustion efficiency of the liquid fuel composition of this invention,can be enhanced.
  • While the present invention has been described in connection with what are considered the most practical and preferred embodiments, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretations and equivalent arrangements.

Claims (8)

1. A liquid fuel composition, comprising:
a liquid fuel, and
a sublimatable organic compound that has a sublimation point lower than 45° C. at atmospheric pressure, and that includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
2. The liquid fuel composition of claim 1, wherein said sublimatable organic compound is selected from the group consisting of menthol, borneol, camphene, tert-butylcyclohexanol, maltol (3-hydroxy-2-methyl-4-pyrone), 5-acetyl-1,1,2,3,3,6-hexamethylindane (phantolide), 4-acetyl-6-tert-butyl-1,1-dimethylindane (celestolide), 1,1,4,4-tetramethyl-6-ethyl-7-acetyl-1,2,3,4-tetrahy dronaphthalene(versalide), 2-isopropyl-2,5-dihydroxy-5-methylcyclohexanone, 1-methyl-1-hydroxy-4-(1-methyl-1-hydroxyethyl)cycloh exane, 2-methyl-3,5-dihydroxy-5-(1-methylvinyl)-2-cyclohexa none, 3-methyl-3-hydroxy-6-isopropylcyclohexanone, 5-hydroxy-5-methyl-2-(1-methylethylidene)cyclohexane, 2-hydroxy-2,6,6-trimethylbicyclo[3.1.1]-2-heptane, 2-(4-hydroxy-4-methyl-1-cyclohexyl)isopropanol, 1-hydroxy-1-methyl-4-(1-methylethylidene)cyclohexane, 1-methyl-2,5-diisobutyl-4-cumene, 1-hydroxy-2-isobutylcyclohexane, 1-hydroxy-1-isobutylcyclohexane, 1,4-dihydroxy-3,6-diisobutylcyclohexane, 1-hydroxy-3,6-diisobutylcyclohexane, 1-hydroxy-4-isobutylcyclohexane, 4,7,7-trimethylbicyclo[2.2.1]heptanone, 4,7,7-trimethylbicyclo[2.2.1]heptanol, 1-hydroxl-3-isopropyl-6-methylcyclohexane, 2-isobutyl-3-isopropylcyclopropanone, 2-isobutyl-3-isopropylcyclopropanol, 2-isobutyl-4-ethylcyclobutanone, 2-isobutyl-4-ethylcyclobutanol, 2-isobutyl-4-methylcyclopentanone, 2-isobutyl-4-methylcyclopentanol, 2-isobutylcyclohexanone, 2-isobutylcyclohexanol, 4-isopropylcycloheptanone, 4-isopropylcycloheptanol, 3,7-dimethylcyclooctanone, 3,7-dimethylcyclooctanol, and combinations thereof.
3. The liquid fuel composition of claim 1, wherein said sublimatable organic compound is present in an amount of 0.1-500 grams based on 10 L of said liquid fuel.
4. The liquid fuel composition of claim 1, wherein said liquid fuel is selected from the group consisting of gasoline, diesel, alcohol, biomass fuel, organic hydrogenated fuel oil, and combinations thereof.
5. A method for enhancing combustion efficiency of a liquid fuel, comprising:
adding a sublimatable organic compound in a liquid fuel,
wherein the sublimatable organic compound has a sublimation point lower than 45° C. at atmospheric pressure and includes a skeleton selected from the group consisting of bicycloheptane, indane, pyrone, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, and benzene.
6. The method of claim 5, wherein the sublimatable organic compound is selected from the group consisting of menthol, borneol, camphene, tert-butylcyclohexanol, maltol(3-hydroxy-2-methyl-4-pyrone), 5-acetyl-1,1,2,3,3,6-hexamethylindane(phantolide), 4-acetyl-6-tert-butyl-1,1-dimethylindane(celestolide), 1,1,4,4-tetramethyl-6-ethyl-7-acetyl-1,2,3,4-tetrahy dronaphthalene(versalide), 2-isopropyl-2,5-dihydroxy-5-methylcyclohexanone, 1-methyl-1-hydroxy-4-(1-methyl-1-hydroxyethyl)cycloh exane, 2-methyl-3,5-dihydroxy-5-(1-methylvinyl)-2-cyclohexa none, 3-methyl-3-hydroxy-6-isopropylcyclohexanone, 5-hydroxy-5-methyl-2-(1-methylethylidene)cyclohexane, 2-hydroxy-2,6,6-trimethylbicyclo[3.1.1]-2-heptane, 2-(4-hydroxy-4-methyl-1-cyclohexyl)isopropanol, 1-hydroxy-1-methyl-4-(1-methylethylidene)cyclohexane, 1-methyl-2,5-diisobutyl-4-cumene, 1-hydroxy-2-isobutylcyclohexane, 1-hydroxy-1-isobutylcyclohexane, 1,4-dihydroxy-3,6-diisobutylcyclohexane, 1-hydroxy-3,6-diisobutylcyclohexane, 1-hydroxy-4-isobutylcyclohexane, 4,7,7-trimethylbicyclo[2.2.1]heptanone, 4,7,7-trimethylbicyclo[2.2.1]heptanol, 1-hydroxl-3-isopropyl-6-methylcyclohexane, 2-isobutyl-3-isopropylcyclopropanone, 2-isobutyl-3-isopropylcyclopropanol, 2-isobutyl-4-ethylcyclobutanone, 2-isobutyl-4-ethylcyclobutanol, 2-isobutyl-4-methylcyclopentanone, 2-isobutyl-4-methylcyclopentanol, 2-isobutylcyclohexanone, 2-isobutylcyclohexanol, 4-isopropylcycloheptanone, 4-isopropylcycloheptanol, 3,7-dimethylcyclooctanone, 3,7-dimethylcyclooctanol, and combinations thereof.
7. The method of claim 5, wherein the sublimatable organic compound is present in an amount of 0.1-500 grams based on 10 L of the liquid fuel.
8. The method of claim 5, wherein the liquid fuel is selected from the group consisting of gasoline, diesel, alcohol, biomass fuel, organic hydrogenated fuel oil, and combinations thereof.
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US20150259619A1 (en) * 2014-03-11 2015-09-17 Swift Fuels, Llc Motor fuel formulation
KR20200088315A (en) * 2017-11-17 2020-07-22 도르프 케탈 케미칼즈 에프제트이 Fuel additive composition and method of use

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Publication number Priority date Publication date Assignee Title
WO2015115880A1 (en) * 2014-01-30 2015-08-06 Torres Roldán Victor Enrique Composition for fuels
US20150259619A1 (en) * 2014-03-11 2015-09-17 Swift Fuels, Llc Motor fuel formulation
US10767131B2 (en) 2014-03-11 2020-09-08 Swift Fuels, Llc Motor fuel formulation
KR20200088315A (en) * 2017-11-17 2020-07-22 도르프 케탈 케미칼즈 에프제트이 Fuel additive composition and method of use
KR102289662B1 (en) 2017-11-17 2021-08-18 도르프 케탈 케미칼즈 에프제트이 Fuel additive composition and method of use thereof

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